JLG-3369LE-4069LE-M3369-M4069-SM-2011

JLG-3369LE-4069LE-M3369-M4069-SM-2011
Service & Maintenance Manual
Models
3369LE
4069LE
M3369
M4069
3121122
January 14, 2011
INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS
SECTION A. INTRODUCTION - MAINTENANCE SAFETY
PRECAUTIONS
A.A GENERAL
This section contains the general safety precautions
which must be observed during maintenance of the
aerial platform. It is of utmost importance that maintenance personnel pay strict attention to these warnings and precautions to avoid possible injury to
themselves or others, or damage to the equipment.
A maintenance program must be followed to ensure
that the machine is safe to operate.
MODIFICATION OF THE MACHINE WITHOUT CERTIFICATION BY A RESPONSIBLE AUTHORITY THAT THE
MACHINE IS AT LEAST AS SAFE AS ORIGINALLY
MANUFACTURED, IS A SAFETY VIOLATION.
The specific precautions to be observed during
maintenance are inserted at the appropriate point in
the manual. These precautions are, for the most
part, those that apply when servicing hydraulic and
larger machine component parts.
Your safety, and that of others, is the first consideration when engaging in the maintenance of equipment. Always be conscious of weight. Never attempt
to move heavy parts without the aid of a mechanical
device. Do not allow heavy objects to rest in an
unstable position. When raising a portion of the
equipment, ensure that adequate support is provided.
SINCE THE MACHINE MANUFACTURER HAS NO
DIRECT CONTROL OVER THE FIELD INSPECTION
AND MAINTENANCE, SAFETY IN THIS AREA RESPONSIBILITY OF THE OWNER/OPERATOR.
A.B HYDRAULIC SYSTEM SAFETY
It should be noted that the machines hydraulic systems operate at extremely high potentially dangerous pressures. Every effort should be made to
relieve any system pressure prior to disconnecting
or removing any portion of the system.
Relieve system pressure by cycling the applicable
control several times with the engine stopped and
3121122
ignition on, to direct any line pressure back into the
reservoir. Pressure feed lines to system components
can then be disconnected with minimal fluid loss.
A.C MAINTENANCE
FAILURE TO COMPLY WITH SAFETY PRECAUTIONS
LISTED IN THIS SECTION MAY RESULT IN MACHINE
DAMAGE, PERSONNEL INJURY OR DEATH AND IS A
SAFETY VIOLATION.
• NO SMOKING IS MANDATORY. NEVER REFUEL DURING ELECTRICAL STORMS. ENSURE THAT FUEL CAP
IS CLOSED AND SECURE AT ALL OTHER TIMES.
• REMOVE ALL RINGS, WATCHES AND JEWELRY WHEN
PERFORMING ANY MAINTENANCE.
• DO NOT WEAR LONG HAIR UNRESTRAINED, OR
LOOSE-FITTING CLOTHING AND NECKTIES WHICH
ARE APT TO BECOME CAUGHT ON OR ENTANGLED
IN EQUIPMENT.
• OBSERVE AND OBEY ALL WARNINGS AND CAUTIONS
ON MACHINE AND IN SERVICE MANUAL.
• KEEP OIL, GREASE, WATER, ETC. WIPED FROM
STANDING SURFACES AND HAND HOLDS.
• USE CAUTION WHEN CHECKING A HOT, PRESSURIZED COOLANT SYSTEM.
• NEVER WORK UNDER AN ELEVATED SIZZOR UNTIL
PLATFORM HAS BEEN SAFELY RESTRAINED FROM
ANY MOVEMENT BY BLOCKING OR OVERHEAD
SLING, OR BOOM SAFETY PROP HAS BEEN
ENGAGED.
• BEFORE MAKING ADJUSTMENTS, LUBRICATING OR
PERFORMING ANY OTHER MAINTENANCE, SHUT
OFF ALL POWER CONTROLS.
• BATTERY SHOULD ALWAYS BE DISCONNECTED DURING REPLACEMENT OF ELECTRICAL COMPONENTS.
• KEEP ALL SUPPORT EQUIPMENT AND ATTACHMENTS STOWED IN THEIR PROPER PLACE.
• USE ONLY APPROVED, NONFLAMMABLE CLEANING
SOLVENTS.
– JLG Lift –
a
INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS
REVISION LOG
Original Issue - February 5, 2001
Revision - April 25, 2001
Revision - September 17, 2001
Revision - June 21, 2002
Revision - October 15, 2002
Revision - December 10, 2003
Revision - February 17, 2004
Revision - May 11, 2004
Revision - December 21, 2004
Revision - January 24, 2005
Revision - February 2, 2007
Revision - April 17, 2007
Revision - October 11, 2007
Revision - November 28, 2007
Revision - March 17, 2008
Revision - January 14, 2011
b
– JLG Lift –
3121122
TABLE OF CONTENTS
TABLE OF CONTENTS
SUBJECT - SECTION, PARAGRAPH
PAGE NO.
SECTION A - INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS
A.A
A.B
A.C
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-a
Hydraulic System Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-a
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-a
SECTION 1 - SPECIFICATIONS
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
1.12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Pressure Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Component Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Cylinder Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Major Component Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Critical Stability Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Serial Number Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Torque Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
SECTION 2 - GENERAL
2.1
2.2
2.3
2.4
2.5
2.6
Machine Preparation, Inspection, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Service and Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Lubrication and Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Cylinder Drift Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Pins and Composite Bearing Repair Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Preventive Maintenance and Inspection Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
SECTION 3 - CHASSIS & SCISSOR ARMS
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Tilt Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Battery Maintenance and Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Generator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
Supplementary Fuse For APU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19
Joystick Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Drive Hub. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27
Drive Brake - MICO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29
Torque Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
SECTION 4 - HYDRAULICS
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
3121122
Servicing and Maintenance Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Lubrication Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Cylinders - Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Valves - Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Component Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Wear Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Motor Controller - Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Cylinder Checking Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Cylinder Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Cylinder Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Steer Cylinder Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Oscillation Cylinder Bleeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
– JLG Lift –
i
TABLE OF CONTENTS (Continued)
4.14
4.15
4.16
4.17
Cylinder Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Pressure Setting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
Drive Torque Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20
Drive Assist Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
SECTION 5 - JLG CONTROL SYSTEM
5.1
5.2
5.3
5.4
Hand Held Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
PC Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
Flash Codes/DTC’s and Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Ground Control Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
6.1
6.2
6.3
6.4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Multimeter Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Applying Silicone Dielectric Compound To Amp Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Working With Deutsch Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
LIST OF FIGURES
FIGURE NO.
1-1.
1-2.
1-3.
1-4.
1-5.
1-6.
1-7.
1-8.
1-9.
3-1.
3-2.
3-3.
3-4.
3-5.
3-6.
3-7.
3-8.
3-9.
3-10.
3-11.
3-12.
3-13.
3-14.
3-15.
3-16.
3-17.
3-18.
3-19.
3-20.
3-21.
3-22.
3-23.
3-24.
3-23.
3-24.
ii
TITLE
PAGE NO.
Lubrication Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Serial Number Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Torque Chart (SAE Fasteners - Sheet 1 of 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Torque Chart (SAE Fasteners - Sheet 2 of 7)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Torque Chart (SAE Fasteners - Sheet 3 of 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Torque Chart (SAE Fasteners - Sheet 4 of 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Torque Chart (METRIC Fasteners - Sheet 5 of 7)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Torque Chart (METRIC Fasteners - Sheet 6 of 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Torque Chart (METRIC Fasteners - Sheet 7 of 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Tilt Sensor Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Tilt Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Tilt Sensor Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Tilt Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Remote LED Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Battery Charger Location (M model shown). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Batteries and Battery Charger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
Generator Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
Generator System Analyzer Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
Joystick Controller - (JLG P/N 1600308) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
Joystick Controller - (JLG P/N 1600403) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Drive Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
Power Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Torque Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26
Brake Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28
Torque Hub Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
Bolt Torquing Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-31
Hub Main Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32
Output Carrier Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34
Input Carrier Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-35
Hub-Spindle Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36
Cover Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-37
Input Carrier Sub-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38
Output Carrier Sub-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-39
Hub-Spindle Sub-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-40
– JLG Lift –
3121122
TABLE OF CONTENTS
3-25.
3-26.
4-1.
4-2.
4-3.
4-4.
4-5.
4-6.
4-7.
4-8.
4-9.
4-10.
4-11.
4-12.
4-13.
4-14.
4-15.
4-16.
4-17.
4-18.
4-19.
5-1.
5-2.
5-2.
5-3.
5-4.
5-5.
5-6.
5-7.
6-1.
6-2.
6-3.
6-4.
6-5.
6-6.
6-7.
6-8.
6-9.
6-10.
6-11.
6-12.
6-13.
6-14.
6-15.
6-16.
6-17.
6-18.
6-19.
6-20.
6-21.
6-22.
6-23.
6-24.
6-25.
6-26.
6-27.
6-28.
3121122
Cover Sub-Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-41
Hub Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-42
Barrel Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Capscrew Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Rod Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Oil-lite Bearing Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Rod Seal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Wiper Seal Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Installation of Head Seal Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Piston Seal Kit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Poly-Pak Piston Seal Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Rod Assembly Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Lift Cylinder - 3369LE & M3369. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Lift Cylinder - 4069LE & M4069. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Leveling Jack Cylinder - USA Built Machines S/N 0200112735 to Present) . . . . . . . . . . . . . . . . .4-14
Leveling Jack Cylinder - USA Built Machines S/N 0200104829 to S/N 0200112735
& All Belgium Built Machines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Leveling Jack Cylinder - USA Built Machines Prior to S/N 0200104829 . . . . . . . . . . . . . . . . . . . .4-16
Steer Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
Axle Lockout Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20
Drive Assist Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
Hand Held Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
PC Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
Analyzer Flow Chart - SW V13.X - Sheet 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
Analyzer Flow Chart - SW V13.X - Sheet 2 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12
Analyzer Flow Chart - SW V13.X - Sheet 3 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
Analyzer Flow Chart - Software P1.X - Sheet 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
Analyzer Flow Chart - Software P1.X - Sheet 2 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15
Analyzer Flow Chart - Software P1.X - Sheet 3 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
Voltage Measurement (DC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Resistance Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Continuity Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Current Measurement (DC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
AMP Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Connector Assembly (1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Connector Assembly (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Connector Assembly (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Connector Assembly (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Connector Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Connector Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
DT/DTP Contact Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
DT/DTP Contact Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
HD/HDP Contact Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
HD/HDP Locking Contacts Into Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11
HD/HDP Contact Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11
HD/HDP Unlocking Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11
Electrical Components Installation - (Sheet 1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12
Electrical Components Installation - (Sheet 2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13
Electrical Components Installation - (Sheet 3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14
Electrical Components Installation - (Sheet 4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Electrical Schematic - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-16
Electrical Schematic - Sheet 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-17
Electrical Schematic - Kubota Engine (M3369 & 3369LE only) . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
Electrical Schematic - Yanmar Engine (M3369 & 3369LE only). . . . . . . . . . . . . . . . . . . . . . . . . . .6-19
Hydraulic Diagram - 3369LE and M3369 (Fixed Axle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
Hydraulic Diagram - 3369LE and M3369 (Oscillating Axle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21
Hydraulic Diagram - 4069LE and M4069 (Fixed Axle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
– JLG Lift –
iii
TABLE OF CONTENTS (Continued)
6-29.
6-30.
Hydraulic Diagram - 4069LE and M4069 (Oscillating Axle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
Hydraulic Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-24
LIST OF TABLES
TABLE NO.
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
1-9
1-10
1-11
2-1
2-2
2-3
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
4-1
4-2
4-3
4-4
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15
5-16
iv
TITLE
PAGE NO.
Operating Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Pressure Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Lubrication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Mobil DTE 11M Specs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Cylinder Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Major Component Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Critical Stability Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Lubrication Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Inspection and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Cylinder Drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Preventive Maintenance and Inspection Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Tilt Sensor Harness Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Tilt Sensor Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Delta-Q - Battery Charger Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Battery Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
RBS Pre start Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
RBS Startup Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
RBS Shutdown Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
Generator System Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17
Joystick Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
Joystick Plug Loading Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
Joystick Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Joystick Plug Loading Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Power Controller Cable Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Cutout Heights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Cylinder Piston Nut Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Holding Valve Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Valve Component Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
Flash Codes/DTC’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Power Module Diagnostic LED Flash Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10
Machine Model Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-17
Machine Configuration Programming Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
J1 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19
J2 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20
J3 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-21
J4 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-22
J5 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-22
J6 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-22
J1 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-23
J2 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24
J3 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-25
J4 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26
J5 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26
J6 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26
– JLG Lift –
3121122
SECTION 1 - SPECIFICATIONS
SECTION 1. SPECIFICATIONS
1.1 SPECIFICATIONS
Table 1-1. Operating Specifications
Description
Maximum Platform Height
3369LE/M3369
4069LE/M4069
33 ft (10.1 m)
40 ft (12.2 m)
Maximum Occupants
Gross Machine Weight (minimum)
2
9760 lbs (4427 kg)
Travel Speed:
High Drive Fwd/Rev (sec/50 ft)
Elevated Drive Fwd/Rev (sec/50 ft)
10,560 lbs (4790 kg)
10.6 - 12 sec
40 - 44 sec
Lifting Speed:
No Load
Rated Load
36 - 40 sec
38 - 44 sec
52 - 60 sec
54 - 62 sec
Lowering Speed (no load)
43 - 48 sec
49 - 51 sec
Gradeability (platform stowed)
35%
Turning Radius:
Inside
Outside
Maximum Platform Capacity
-Platform
-Platform Extension
Maximum Ground Bearing Pressure
Maximum Tire Load
7.5 ft (2.3 m)
16 ft (4.9 m)
ANSI/CSA/Brazil:
CE/AUS:
ANSI/CSA/Brazil:
CE/AUS:
1000 lbs (454kg)
1000 lbs (450kg)
250 lbs (113kg)
250 lbs (120kg)
61 psi (4.3 bar)
3200 lbs (1452 kg)
3700 lbs (1680 kg)
3000 psi (207 bar)
Electrical System Voltage
48Vdc
150 lb force (667 N)
120 lb force (534 N)
Tilt Sensor Setting:
Side to Side
Fore and Aft
3°
5°
Ground Clearance
8 in (20 cm)
Wheelbase
Machine Height (w/ rails folded)
91.5 in (2.3 m)
76.5 in (1.9 m)
79 in (2.01 m)
Machine Length (stowed)
121 in (3.1 m)
Machine Width
69 in (1.75 m)
3121122
800 lbs (363kg)
800 lbs (360kg)
250 lbs (113kg)
250 lbs (120kg)
57 psi (4 bar)
Maximum Hydraulic System Pressure
Maximum Horizontal Manual Side Force
ANSI/CSA/Brazil:
CE/AUS:
ANSI/CSA/Brazil:
CE/AUS:
– JLG Lift –
1-1
SECTION 1 - SPECIFICATIONS
1.2 CAPACITIES
Drive System
Drive Motor - 48 VDC, 11.8 H.P. peak 5.5 H.P. continuous,
rotation - reversible
Table 1-2. Capacities
Description
3369LE/M3369
4069LE/M4069
8.25 gal (31.2 liters)
5.4 gal (20.4 liters) @ full mark
Hydraulic Tank
Hydraulic System
Steer System
approx. 8.5 gal (32.1 liters)
Torque Hubs (2)
Drive Brake- 24 VDC, spring-applied, hydraulically
released
Tires - IN240/55-17.5 FF
17 ounces (0.5 liters)
IN240/55-17.5 FF non marking
Toe-In 1/4 inch (6.4 mm) overall
1.3 PRESSURE SETTINGS
Hydraulic Pump/Electric Motor Assembly
Table 1-3. Pressure Settings
Description
3369LE/M3369
4069LE/M4069
Main Relief (±50 psi)
3000 psi
(207 bar)
Steer Relief
2500 psi
(172 bar)
Lift Relief
2600 psi
(179 bar)
Pump Output - 3.86 gpm (14.6 lpm) @ 2175 psi (150 bar)
1.5 TORQUE SPECIFICATIONS
Table 1-4. Torque Specifications
DESCRIPTION
2800 psi
(193 bar)
TORQUE VALUE
(DRY)
Torque Hub
Wheel Nuts
1.4 COMPONENT DATA
Fixed Axle Bolts
Battery Charger
Drive Motor
Input 220 VAC, 50 HZ Input, (110 VAC,60 HZ)
Pump Motor
Terminals
Output, 48 VDC @ 23 Amp
INTERVAL HOURS
240 ft lbs
(336 Nm)
170 ft lbs
(238 Nm)
220 ft lbs
(308 Nm)
35 ft lbs
(49 Nm)
12-14 ft lbs
(14-19 Nm)
500
50
500
N/A
N/A
NOTE: When maintenance becomes necessary or a fastener has loosened, refer to the Torque Chart to
determine proper torque value.
Batteries (8)
6 Volt, 370 Amp-hour
1.6 LUBRICATION
JLG MACHINES EQUIPPED WITH DELTA Q BATTERY CHARGERS
ARE DESIGNED FOR THE BEST PERFORMANCE WITH OEM FACTORY APPROVED BATTERIES.
APPROVED JLG REPLACEMENT BATTERIES ARE AVAILABLE
THROUGH JLG' S AFTERMARKET PARTS DISTRIBUTION CENTERS OR JLG' S AFTERMARKET PROGRAMS. FOR ASSISTANCE
WITH PROPER BATTERY REPLACEMENT, PLEASE CONTACT
YOUR LOCAL JLG SUPPORT OFFICE.
BATTERIES APPROVED BY JLG HAVE BEEN TESTED FOR COMPATIBILITY WITH THE ALGORITHM PROGRAMMING OF THE
DELTA Q BATTERY CHARGER TO OPTIMIZE BATTERY LIFE AND
MACHINE CYCLE TIMES. THE USE OF NON APPROVED BATTERIES IN YOUR JLG EQUIPMENT MAY RESULT IN PERFORMANCE
ISSUES OR BATTERY CHARGER FAULT CODES. JLG ASSUMES
NO RESPONSIBILITY FOR SERVICE OR PERFORMANCE ISSUES
ARISING FROM THE USE OF NON APPROVED BATTERIES.
1-2
Table 1-5. Hydraulic Oil
Hydraulic System Operating
Temperature Range
SAE Viscosity Grade
0° F to 23° F (-18°C to -5°C)
0° F to 210° F (-18°C to +99°C)
50° F to 210° F (+10°C to +99°C)
10W
10W-20, 10W- 0
20W-20
NOTE: Hydraulic oils must have anti-wear qualities at least
to API Service Classification GL-3, and sufficient
chemical stability for mobile hydraulic system service. JLG Industries recommends Mobil DTE 11M
hydraulic oil, which has an SAE viscosity index of
140.
Aside from JLG recommendations, it is not advisable
to mix oils of different brands or types, as they may
not contain the same required additives or be of
comparable viscosities.
– JLG Lift –
3121122
SECTION 1 - SPECIFICATIONS
Lubrication Specifications
1.7 CYLINDER SPECIFICATIONS
Table 1-6. Lubrication Specifications
Table 1-8. Cylinder Specifications
KEY
SPECIFICATIONS
DESCRIPTION
BORE
STROKE
ROD DIA.
EPGL
Extreme Pressure Gear Lube (oil) meeting API service
classification GL-5 or MIL-Spec MIL-L-2105
Lift Cylinder
(M3369/3369LE)
4.00 in
(10.16 cm)
63.69 in
(161.77 cm)
2.75 in
(6.98 cm)
HO
Hydraulic Oil. API service classification Gl-3, BP Energol SHS46.
Upper Lift Cylinder
(M4069/4069LE)
3.00 in
(7.62 cm)
58.13 in
(147.65 cm)
2.75 in
(6.98 cm)
LL
Synthetic Lithium Lubricant, Gredag 741 Grease.
Lower Lift Cylinder
(M4069/4069LE)
4.00 in
(10.16 cm)
58.13 in
(147.65 cm)
2.25 in
(5.71 cm)
Steer Cylinder
2.00 in
(5.08 cm)
6.5 in
(16.51 cm)
1.125 in
(2.86 cm)
*MPG may be substituted for these lubricants, if necessary, but service intervals will be reduced.
NOTE: Refer to Lubrication Chart for specific lubrication procedures.
1.8 MAJOR COMPONENT WEIGHTS
Table 1-7. Mobil DTE 11M Specs
ISO Viscosity Grade
#15
Gravity API
31.9
Pour Point, Max
Flash Point, Min.
Description
3369LE/M3369
4069LE/M4069
Platform
780 lbs (354 kg)
-40°F (-40°C)
Platform Extension
360 lbs (163 kg)
330°F (166°C)
Arm Assembly
(Includes Lift Cylinders)
3200 lbs
(1451 kg)
3900 lbs
(1769 kg)
Chassis (Includes Battery Box
and Foam filled Tires)
5420 lbs
(2458 kg)
5517 lbs
(2502 kg)
Viscosity
at 40° C
15 cSt
at 100° C
4.1 cSt
at 100° F
80 SUS
at 210° F
43 SUS
cp at -30° F
3.200
Viscosity Index
140
3121122
Table 1-9. Major Component Weights
1.9 CRITICAL STABILITY WEIGHTS
Table 1-10. Critical Stability Weights
Description
– JLG Lift –
3369LE/M3369
4069LE/M4069
Platform
780 lbs (354 kg)
Platform Extension
360 lbs (163 kg)
Foam Filled Tires
207 lbs (94 kg)
Battery (Each)
122 lbs (55 kg)
1-3
SECTION 1 - SPECIFICATIONS
1.10 LUBRICATION
Note:
500 Hrs. = 3 months
1000 Hrs. = 6 months
2000 Hrs. = 1 year
4000 Hrs. = 2 years
1
3
2
Figure 1-1. Lubrication Chart
Table 1-11. Lubrication Chart
INDEX
NUMBER
COMPONENT
NO/TYPE LUBE
POINTS
LUBE/METHOD
INTERVAL
HOURS
1
Sliding Wear Pads
8 Wear Pads
MPG/Brush
50
--
10/500
Check oil every 10 hours of operation
Change oil after every 1000 hours of operation
MPG - Repack
1200
---
2
Hydraulic Oil
HO - Check HO Level
Fill Level/Drain Plug
HO - Change HO
Front Wheels
COMMENTS
3
Wheel Bearings
4
Spindles/Bushing
(not shown)
N/A
LL
At Spindle Bushing
Replacement
5
Wheel Drive Hub
(not shown)
Fill Plug/Half Full
EPGL
1200
Check oiul level at side plug daily.
Change after first 150 hours of operation then every
1000 hours thereafter
6
*High Pressure
Filter (not shown)
N/A
Replaceable
Element
50/250
Replace filter element after first 50 hours of operation
and every 1000 hours thereafter.
KEY TO LUBRICANTS:
HO - Hydraulic Oil - Mobil DTE - 11M
EPGL - Extreme Pressure Gear Lube
MPG - Multi Purpose Grease
TO AVOID PERSONAL INJURY, USE SAFETY PROP FOR ALL
MAINTENANCE REQUIRING PLATFORM TO BE ELEVATED
NOTE: Be sure to lubricate like items on each side of the
machine.
1-4
NOTE: Recommended lubricating intervals are based on
machine operations under normal conditions. For
machines used in multi-shift operations and/or
exposed to hostile environments or conditions, lubricating frequencies must be increased accordingly.
*The high pressure filter is located in the main control valve. See figure title control valve in section 2.
– JLG Lift –
3121122
SECTION 1 - SPECIFICATIONS
1.11 SERIAL NUMBER LOCATIONS
For machine identification, a serial number plate is affixed to the front of the frame. If the serial number plate is damaged or
missing, the machine serial number is stamped on the left front of the machine frame.
SERIAL NUMBER
PLATE
SERIAL NUMBER
STAMPED
Figure 1-2. Serial Number Location
3121122
– JLG Lift –
1-5
SECTION 1 - SPECIFICATIONS
1.12 TORQUE CHARTS
Values for Zinc Yellow Chromate Fasteners (Ref 4150707)
SAE GRADE 5 BOLTS & GRADE 2 NUTS
Torque
Lubricated
Torque
(Dry)
Tensile
Clamp Load
Stress Area
Torque
Torque
(Loctite® 242TM or 271TM
(Loctite® 262TM or VibraTM
OR Vibra-TITE 111 or
TITETM 131)
140)
Size
TPI
Bolt Dia
In
Sq In
LB
IN-LB
[N.m]
IN-LB
[N.m]
IN-LB
[N.m]
4
40
48
32
40
32
36
24
32
20
28
0.1120
0.1120
0.1380
0.1380
0.1640
0.1640
0.1900
0.1900
0.2500
0.2500
0.00604
0.00661
0.00909
0.01015
0.01400
0.01474
0.01750
0.02000
0.0318
0.0364
380
420
580
610
900
940
1120
1285
2020
2320
8
9
16
18
30
31
43
49
96
120
0.9
1.0
1.8
2.0
3.4
3.5
4.8
5.5
10.8
13.5
6
7
12
13
22
23
32
36
75
86
0.7
0.8
1.4
1.5
2.5
2.6
3.5
4
9
10
105
135
12
15
18
24
16
24
14
20
13
20
12
18
11
18
10
16
9
14
8
12
7
12
7
12
6
12
6
12
In
0.3125
0.3125
0.3750
0.3750
0.4375
0.4375
0.5000
0.5000
0.5625
0.5625
0.6250
0.6250
0.7500
0.7500
0.8750
0.8750
1.0000
1.0000
1.1250
1.1250
1.2500
1.2500
1.3750
1.3750
1.5000
1.5000
Sq In
0.0524
0.0580
0.0775
0.0878
0.1063
0.1187
0.1419
0.1599
0.1820
0.2030
0.2260
0.2560
0.3340
0.3730
0.4620
0.5090
0.6060
0.6630
0.7630
0.8560
0.9690
1.0730
1.1550
1.3150
1.4050
1.5800
LB
3340
3700
4940
5600
6800
7550
9050
10700
11600
12950
14400
16300
21300
23800
29400
32400
38600
42200
42300
47500
53800
59600
64100
73000
78000
87700
FT-LB
17
19
30
35
50
55
75
90
110
120
150
170
260
300
430
470
640
700
800
880
1120
1240
1460
1680
1940
2200
[N.m]
23
26
41
47
68
75
102
122
149
163
203
230
353
407
583
637
868
949
1085
1193
1518
1681
1979
2278
2630
2983
FT-LB
13
14
23
25
35
40
55
65
80
90
110
130
200
220
320
350
480
530
600
660
840
920
1100
1260
1460
1640
[N.m]
18
19
31
34
47
54
75
88
108
122
149
176
271
298
434
475
651
719
813
895
1139
1247
1491
1708
1979
2224
FT-LB
19
21
35
40
55
60
85
100
120
135
165
190
285
330
475
520
675
735
840
925
1175
1300
1525
1750
2025
2300
[N.m]
26
29
48
54
75
82
116
136
163
184
224
258
388
449
646
707
918
1000
1142
1258
1598
1768
2074
2380
2754
3128
6
8
10
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
NOTES:
1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
3. * ASSEMBLY USES HARDENED WASHER
IN-LB
[N.m]
FT-LB
16
17
28
32
45
50
68
80
98
109
135
153
240
268
386
425
579
633
714
802
1009
1118
1322
1506
1755
1974
[N.m]
22
23
38
43
61
68
92
108
133
148
183
207
325
363
523
576
785
858
968
1087
1368
1516
1792
2042
2379
2676
NO. 5000059
REV. J
REFERENCE JLG ANEROBIC THREAD LOCKING COMPOUND
JLG P/N
0100011
0100019
0100071
Loctite® P/N
TM
242
271TM
262TM
ND Industries P/N
TM
Vibra-TITE 121
Vibra-TITE TM 140
Vibra-TITE TM 131
Description
Medium Strength (Blue)
High Strength (Red)
Medium - High Strength (Red)
Figure 1-3. Torque Chart (SAE Fasteners - Sheet 1 of 7)
1-6
– JLG Lift –
3121122
SECTION 1 - SPECIFICATIONS
SAE GRADE 8 (HEX HD) BOLTS & GRADE 8 NUTS*
Tensile
Clamp Load
Stress Area
Torque
(Dry or Loctite® 263)
K= 0.20
Torque
Torque
(Loctite® 242TM or 271TM (Loctite® 262TM or VibraOR Vibra-TITE TM 111 or
TITETM 131)
140)
K=.18
K=0.15
Size
TPI
Bolt Dia
In
Sq In
LB
IN-LB
[N.m]
IN-LB
[N.m]
4
40
48
32
40
32
36
24
32
20
28
0.1120
0.1120
0.1380
0.1380
0.1640
0.1640
0.1900
0.1900
0.2500
0.2500
0.00604
0.00661
0.00909
0.01015
0.01400
0.01474
0.01750
0.02000
0.0318
0.0364
1320
1580
1800
2860
3280
43
60
68
143
164
5
7
8
16
19
129
148
15
17
18
24
16
24
14
20
13
20
12
18
11
18
10
16
9
14
8
12
7
12
7
12
6
12
6
12
In
0.3125
0.3125
0.3750
0.3750
0.4375
0.4375
0.5000
0.5000
0.5625
0.5625
0.6250
0.6250
0.7500
0.7500
0.8750
0.8750
1.0000
1.0000
1.1250
1.1250
1.2500
1.2500
1.3750
1.3750
1.5000
1.5000
Sq In
0.0524
0.0580
0.0775
0.0878
0.1063
0.1187
0.1419
0.1599
0.1820
0.2030
0.2260
0.2560
0.3340
0.3730
0.4620
0.5090
0.6060
0.6630
0.7630
0.8560
0.9690
1.0730
1.1550
1.3150
1.4050
1.5800
LB
4720
5220
7000
7900
9550
10700
12750
14400
16400
18250
20350
23000
30100
33600
41600
45800
51500
59700
68700
77000
87200
96600
104000
118100
126500
142200
FT-LB
25
25
45
50
70
80
105
120
155
170
210
240
375
420
605
670
860
995
1290
1445
1815
2015
2385
2705
3165
3555
[N.m]
35
35
60
70
95
110
145
165
210
230
285
325
510
570
825
910
1170
1355
1755
1965
2470
2740
3245
3680
4305
4835
FT-LB
20
25
40
45
65
70
95
110
140
155
190
215
340
380
545
600
770
895
1160
1300
1635
1810
2145
2435
2845
3200
[N.m]
25
35
55
60
90
95
130
150
190
210
260
290
460
515
740
815
1045
1215
1580
1770
2225
2460
2915
3310
3870
4350
6
8
10
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
NOTES:
IN-LB
[N.m]
FT-LB
20
20
35
35
50
60
80
90
115
130
160
180
280
315
455
500
645
745
965
1085
1365
1510
1785
2030
2370
2665
[N.m
25
25
50
50
70
80
110
120
155
175
220
245
380
430
620
680
875
1015
1310
1475
1855
2055
2430
2760
3225
3625
NO. 5000059
REV. J
1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
3. * ASSEMBLY USES HARDENED WASHER
Figure 1-4. Torque Chart (SAE Fasteners - Sheet 2 of 7))
3121122
– JLG Lift –
1-7
SECTION 1 - SPECIFICATIONS
SOCKET HEAD CAP SCREWS
Magni Coating (Ref 4150701)*
Tensile
Stress Area
Clamp Load
See Note 4
Torque
(Dry) K = .17
Torque
(Loctite® 242TM or 271TM
OR Vibra-TITE TM 111 or
140 OR Precoat 85®
K=0.16
Size
TPI
Bolt Dia
In
Sq In
LB
IN-LB
[N.m]
IN-LB
[N.m]
4
40
48
32
40
32
36
24
32
20
28
0.1120
0.1120
0.1380
0.1380
0.1640
0.1640
0.1900
0.1900
0.2500
0.2500
0.00604
0.00661
0.00909
0.01015
0.01400
0.01474
0.01750
0.02000
0.0318
0.0364
2860
3280
122
139
14
16
114
131
13
15
18
24
16
24
14
20
13
20
12
18
11
18
10
16
9
14
8
12
7
12
7
12
6
12
6
12
In
0.3125
0.3125
0.3750
0.3750
0.4375
0.4375
0.5000
0.5000
0.5625
0.5625
0.6250
0.6250
0.7500
0.7500
0.8750
0.8750
1.0000
1.0000
1.1250
1.1250
1.2500
1.2500
1.3750
1.3750
1.5000
1.5000
Sq In
0.0524
0.0580
0.0775
0.0878
0.1063
0.1187
0.1419
0.1599
0.1820
0.2030
0.2260
0.2560
0.3340
0.3730
0.4620
0.5090
0.6060
0.6630
0.7630
0.8560
0.9690
1.0730
1.1550
1.3150
1.4050
1.5800
LB
4720
5220
7000
7900
9550
10700
12750
14400
16400
18250
20350
23000
30100
33600
41600
45800
51500
59700
68700
77000
87200
96600
104000
118100
126500
142200
FT-LB
20
25
35
40
60
65
90
100
130
145
180
205
320
355
515
570
730
845
1095
1225
1545
1710
2025
2300
2690
3020
[N.m]
25
35
50
55
80
90
120
135
175
195
245
280
435
485
700
775
995
1150
1490
1665
2100
2325
2755
3130
3660
4105
FT-LB
20
20
35
40
55
60
85
95
125
135
170
190
300
335
485
535
685
795
1030
1155
1455
1610
1905
2165
2530
2845
[N.m]
25
25
50
55
75
80
115
130
170
185
230
260
410
455
660
730
930
1080
1400
1570
1980
2190
2590
2945
3440
3870
6
8
10
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
Torque
(Loctite® 262TM
TM
or Vibra-TITE 131)
K=0.15
IN-LB
[N.m]
FT-LB
20
20
35
35
50
60
80
90
115
130
160
180
280
315
455
500
645
745
965
1085
1365
1510
1785
2030
2370
2665
[N.m]
25
25
50
50
70
80
110
120
155
175
220
245
380
430
620
680
875
1015
1310
1475
1855
2055
2430
2760
3225
3625
NO. 5000059
REV. J
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED STEEL OR RAW ALUMINUM
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT REPRESENT FULL STRENGTH
CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED, ADDITIONAL TESTING IS REQUIRED.
Figure 1-5. Torque Chart (SAE Fasteners - Sheet 3 of 7)
1-8
– JLG Lift –
3121122
SECTION 1 - SPECIFICATIONS
SOCKET HEAD CAP SCREWS
Zinc Yellow Chromate Fasteners (Ref 4150707)*
Tensile
Stress Area
Clamp Load
See Note 4
Torque
(Loctite® 242TM or 271TM
OR Vibra-TITE TM 111 or
140 OR Precoat 85®
K=0.18
Torque
(Dry)
K = .20
Size
TPI
Bolt Dia
In
Sq In
LB
IN-LB
[N.m]
IN-LB
[N.m]
4
40
48
32
40
32
36
24
32
20
28
0.1120
0.1120
0.1380
0.1380
0.1640
0.1640
0.1900
0.1900
0.2500
0.2500
0.00604
0.00661
0.00909
0.01015
0.01400
0.01474
0.01750
0.02000
0.0318
0.0364
2860
3280
143
164
16
19
129
148
15
17
18
24
16
24
14
20
13
20
12
18
11
18
10
16
9
14
8
12
7
12
7
12
6
12
6
12
In
0.3125
0.3125
0.3750
0.3750
0.4375
0.4375
0.5000
0.5000
0.5625
0.5625
0.6250
0.6250
0.7500
0.7500
0.8750
0.8750
1.0000
1.0000
1.1250
1.1250
1.2500
1.2500
1.3750
1.3750
1.5000
1.5000
Sq In
0.0524
0.0580
0.0775
0.0878
0.1063
0.1187
0.1419
0.1599
0.1820
0.2030
0.2260
0.2560
0.3340
0.3730
0.4620
0.5090
0.6060
0.6630
0.7630
0.8560
0.9690
1.0730
1.1550
1.3150
1.4050
1.5800
LB
4720
5220
7000
7900
9550
10700
12750
14400
16400
18250
20350
23000
30100
33600
41600
45800
51500
59700
68700
77000
87200
96600
104000
118100
126500
142200
FT-LB
25
25
45
50
70
80
105
120
155
170
210
240
375
420
605
670
860
995
1290
1445
1815
2015
2385
2705
3165
3555
[N.m]
35
35
60
70
95
110
145
165
210
230
285
325
510
570
825
910
1170
1355
1755
1965
2470
2740
3245
3680
4305
4835
FT-LB
20
25
40
45
65
70
95
110
140
155
190
215
340
380
545
600
775
895
1160
1300
1635
1810
2145
2435
2845
3200
[N.m]
25
35
55
60
90
95
130
150
190
210
260
290
460
515
740
815
1055
1215
1580
1770
2225
2460
2915
3310
3870
4350
6
8
10
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
Torque
(Loctite® 262TM
TM
or Vibra-TITE 131)
K=0.15
IN-LB
[N.m]
FT-LB
20
20
35
35
50
60
80
90
115
130
160
180
280
315
455
500
645
745
965
1085
1365
1510
1785
2030
2370
2665
[N.m]
25
25
50
50
70
80
110
120
155
175
220
245
380
430
620
680
875
1015
1310
1475
1855
2055
2430
2760
3225
3625
NO. 5000059 REV. J
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED STEEL OR RAW ALUMINUM
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT REPRESENT FULL STRENGTH
CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED, ADDITIONAL TESTING IS REQUIRED.
Figure 1-6. Torque Chart (SAE Fasteners - Sheet 4 of 7)
3121122
– JLG Lift –
1-9
SECTION 1 - SPECIFICATIONS
CLASS 8.8 METRIC BOLTS
CLASS 8 METRIC NUTS
Size
PITCH
Tensile
Stress
Area
Sq mm
Clamp
Load
Torque
(Dry or Loctite®
263TM)
Torque
(Lub)
KN
[N.m]
[N.m]
Torque
Torque
(Loctite®
(Loctite® 262TM 242TM or 271TM
OR VibraOR VibraTITETM 131)
TITETM 111 or
140)
[N.m]
[N.m]
3
0.5
5.03
2.19
1.3
1.0
1.2
1.4
3.5
0.6
6.78
2.95
2.1
1.6
1.9
2.3
4
0.7
8.78
3.82
3.1
2.3
2.8
3.4
5
0.8
14.20
6.18
6.2
4.6
5.6
6.8
6
1
20.10
8.74
11
7.9
9.4
12
7
1
28.90
12.6
18
13
16
19
8
1.25
36.60
15.9
26
19
23
28
10
1.5
58.00
25.2
50
38
45
55
12
1.75
84.30
36.7
88
66
79
97
14
16
2
2
115
157
50.0
68.3
140
105
126
154
219
164
197
241
18
2.5
192
83.5
301
226
271
331
20
2.5
245
106.5
426
320
383
469
22
2.5
303
132.0
581
436
523
639
24
3
353
153.5
737
553
663
811
27
3
459
199.5
1080
810
970
1130
30
3.5
561
244.0
1460
1100
1320
1530
33
3.5
694
302.0
1990
1490
1790
2090
36
4
817
355.5
2560
1920
2300
2690
42
4.5
1120
487.0
4090
3070
3680
4290
NO. 5000059 REV. J
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT
METHODS TOLERANCE = ±10%
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED
STEEL OR RAW ALUMINUM
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT
REPRESENT FULL STRENGTH CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED,
ADDITIONAL TESTING IS REQUIRED.
Figure 1-7. Torque Chart (METRIC Fasteners - Sheet 5 of 7))
1-10
– JLG Lift –
3121122
SECTION 1 - SPECIFICATIONS
CLASS 10.9 METRIC BOLTS
CLASS 10 METRIC NUTS
CLASS 12.9 SOCKET HEAD CAP SCREWS M3 - M5*
Size
PITCH
Tensile
Stress
Area
Clamp
Load
Torque
(Dry or Loctite®
263TM)
K = 0.20
Sq mm
KN
[N.m]
Torque
(Lub OR Loctite®
242TM or 271TM OR
Vibra-TITE TM 111 or
140)
K= 0.18
Torque
(Loctite® 262TM OR
Vibra-TITE TM 131)
K=0.15
[N.m]
[N.m]
3
0.5
5.03
3.13
3.5
0.6
6.78
4.22
4
0.7
8.78
5.47
5
0.8
14.20
8.85
6
1
20.10
12.5
7
1
28.90
18.0
25.2
22.7
18.9
8
1.25
36.60
22.8
36.5
32.8
27.4
10
1.5
58.00
36.1
70
65
55
12
1.75
84.30
52.5
125
115
95
14
16
2
2
115
157
71.6
97.8
200
180
150
315
280
235
18
2.5
192
119.5
430
385
325
20
2.5
245
152.5
610
550
460
22
2.5
303
189.0
830
750
625
24
3
353
222.0
1065
960
800
27
3
459
286.0
1545
1390
1160
30
3.5
561
349.5
2095
1885
1575
33
3.5
694
432.5
2855
2570
2140
36
4
817
509.0
3665
3300
2750
42
4.5
1120
698.0
5865
5275
4395
NO. 5000059
REV. J
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT
METHODS TOLERANCE = ±10%
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED
STEEL OR RAW ALUMINUM
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT
REPRESENT FULL STRENGTH CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED,
ADDITIONAL TESTING IS REQUIRED.
Figure 1-8. Torque Chart (METRIC Fasteners - Sheet 6 of 7)
3121122
– JLG Lift –
1-11
SECTION 1 - SPECIFICATIONS
Magni Coating (Ref 4150701)*
CLASS 12.9 SOCKET HEAD CAP SCREWS
M6 AND ABOVE*
Size
PITCH
Tensile
Stress
Area
Sq mm
Torque
Torque
(Lub OR Loctite®
Torque
(Loctite® 262TM
Clamp Load (Dry or Loctite® 242TM or 271TM
OR Vibra-TITE TM
See Note 4
263TM)
OR Vibra-TITE TM
131)
K = .17
111 or 140)
K = .15
K = .16
kN
[N.m]
[N.m]
[N.m]
11
3
0.5
5.03
3.5
0.6
6.78
4
0.7
8.78
5
0.8
14.20
6
1
20.10
12.5
13
12
7
1
28.90
18.0
21
20
19
8
1.25
36.60
22.8
31
29
27
10
1.5
58.00
36.1
61
58
54
12
1.75
84.30
52.5
105
100
95
14
16
2
2
115
157
71.6
170
160
150
97.8
265
250
235
18
2.5
192
119.5
365
345
325
20
2.5
245
152.5
520
490
460
22
2.5
303
189.0
705
665
625
24
3
353
220.0
900
845
790
27
3
459
286.0
1315
1235
1160
30
3.5
561
349.5
1780
1680
1575
33
3.5
694
432.5
2425
2285
2140
36
4
817
509.0
3115
2930
2750
42
4.5
1120
698.0
4985
4690
4395
NO. 5000059 REV. J
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT
METHODS TOLERANCE = ±10%
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED
STEEL OR RAW ALUMINUM
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT
REPRESENT FULL STRENGTH CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED,
ADDITIONAL TESTING IS REQUIRED.
Figure 1-9. Torque Chart (METRIC Fasteners - Sheet 7 of 7)
1-12
– JLG Lift –
3121122
SECTION 2 - GENERAL
SECTION 2. GENERAL
2.1 MACHINE PREPARATION, INSPECTION,
AND MAINTENANCE
General
This section provides the necessary information needed
by those personnel that are responsible to place the
machine in operation readiness and maintain its safe
operating condition. For maximum service life and safe
operation, ensure that all the necessary inspections and
maintenance have been completed before placing the
machine into service.
Preparation, Inspection, and Maintenance
It is important to establish and conform to a comprehensive inspection and preventive maintenance program.
The following table outlines the periodic machine inspections and maintenance recommended by JLG Industries,
Inc. Consult your national, regional, or local regulations
for further requirements for aerial work platforms. The frequency of inspections and maintenance must be
increased as environment, severity and frequency of
usage requires.
Pre-Start Inspection
It is the User’s or Operator’s primary responsibility to perform a Pre-Start Inspection of the machine prior to use
daily or at each change of operator. Reference the Operator’s and Safety Manual for completion procedures for the
Pre-Start Inspection. The Operator and Safety Manual
must be read in its entirety and understood prior to performing the Pre-Start Inspection.
Pre-Delivery Inspection and Frequent
Inspection
The Pre-Delivery Inspection and Frequent Inspection shall
be performed by a qualified JLG equipment mechanic.
JLG Industries, Inc. recognizes a qualified JLG equipment
mechanic as a person who, by possession of a recognized degree, certificate, extensive knowledge, training, or
experience, has successfully demonstrated the ability and
proficiency to service, repair, and maintain the subject
JLG product model.
Reference the JLG Pre-Delivery and Frequent Inspection
Form and the Inspection and Preventative Maintenance
Schedule for items requiring inspection during the performance of these inspections. Reference the appropriate
areas of this manual for servicing and maintenance procedures.
Annual Machine Inspection
JLG recommends that an annual machine inspection be
performed by a Factory-Certified Service Technician on an
annual basis, no later than thirteen (13) months from the
date of the prior Annual Machine Inspection. JLG Industries, Inc. recognizes a Factory-Certified Service Technician as a person who has successfully completed the JLG
Service Training School for the subject JLG product
model. Reference the machine Service and Maintenance
Manual and appropriate JLG inspection form for performance of this inspection.
Reference the JLG Annual Machine Inspection Form and
the Inspection and Preventative Maintenance Schedule for
items requiring inspection during the performance of this
inspection. Reference the appropriate areas of this manual for servicing and maintenance procedures.
For the purpose of receiving safety-related bulletins, it is
important that JLG Industries, Inc. has updated ownership
information for each machine. When performing each
Annual Machine Inspection, notify JLG Industries, Inc. of
the current machine ownership.
Preventative Maintenance
In conjunction with the specified inspections, maintenance shall be performed by a qualified JLG equipment
mechanic. JLG Industries, Inc. recognizes a qualified JLG
equipment mechanic as a person who, by possession of a
recognized degree, certificate, extensive knowledge, training, or experience, has successfully demonstrated the
ability and proficiency to service, repair, and maintain the
subject JLG product model.
Reference the Preventative Maintenance Schedule and
the appropriate areas of this manual for servicing and
maintenance procedures. The frequency of service and
maintenance must be increased as environment, severity
and frequency of usage requires.
The Pre-Delivery Inspection and Frequent Inspection procedures are performed in the same manner, but at different times. The Pre-Delivery Inspection shall be performed
prior to each sale, lease, or rental delivery. The Frequent
Inspection shall be accomplished for each machine in service for 3 months or 150 hours (whichever comes first);
out of service for a period of more than 3 months; or when
purchased used. The frequency of this inspection must be
increased as environment, severity and frequency of
usage requires.
3121122
– JLG Lift –
2-1
SECTION 2 - GENERAL
Table 2-1. Inspection and Maintenance
Type
Frequency
Primary
Responsibility
Service
Qualification
Reference
Pre-Start Inspection
Prior to use each day; or
At each Operator change.
User or Operator
User or Operator
Operator and Safety Manual
Pre-Delivery
Inspection
Prior to each sale, lease, or
rental delivery.
Owner, Dealer, or User
Qualified JLG
Mechanic
Service and Maintenance
Manual and applicable JLG
inspection form.
Frequent Inspection
In service for 3 months or 150 hours,
whichever comes first; or
Out of service for a period of more than 3
months; or
Purchased used.
Owner, Dealer, or User
Qualified JLG
Mechanic
Service and Maintenance
Manual and applicable JLG
inspection form.
Annual Machine
Inspection
Annually, no later than 13 months from the
date of the prior inspection.
Owner, Dealer, or User
Preventative
Maintenance
At intervals as specified in the Service and
Maintenance Manual.
Owner, Dealer, or User
2.2 SERVICE AND GUIDELINES
The following information is provided to assist you in the
use and application of servicing and maintenance procedures contained in this book.
Service and Maintenance
Manual
2. At any time when air, fuel, or oil lines are disconnected, clear adjacent areas as well as the openings
and fittings themselves. As soon as a line or component is disconnected, cap or cover all openings to
prevent entry of foreign matter.
Safety and Workmanship
Your safety, and that of others, is the first consideration
when engaging in the maintenance of equipment. Always
be conscious of weight. Never attempt to move heavy
parts without the aid of a mechanical device. Do not allow
heavy objects to rest in an unstable position. When raising
a portion of the equipment, ensure that adequate support
is provided.
3. Clean and inspect all parts during servicing or maintenance, and assure that all passages and openings
are unobstructed. Cover all parts to keep them
clean. Be sure all parts are clean before they are
installed. New parts should remain in their containers until they are ready to be used.
Cleanliness
Components Removal and Installation
1. The most important single item in preserving the
long service life of a machine is to keep dirt and foreign materials out of the vital components. Precautions have been taken to safeguard against this.
2-2
Service and Maintenance
Manual and applicable JLG
inspection form.
Shields, covers, seals, and filters are provided to
keep air, fuel, and oil supplies clean; however, these
items must be maintained on a scheduled basis in
order to function properly.
General
IT IS GOOD PRACTICE TO AVOID PRESSURE-WASHING ELECTRICAL/ELECTRONIC COMPONENTS. IN THE EVENT PRESSURE-WASHING THE MACHINE IS NEEDED, ENSURE THE
MACHINE IS SHUT DOWN BEFORE PRESSURE-WASHING.
SHOULD PRESSURE WASHING BE UTILIZED TO WASH AREAS
CONTAINING ELECTRICAL/ELECTRONIC COMPONENTS, JLG
INDUSTRIES, INC. RECOMMENDS A MAXIMUM PRESSURE OF
750 PSI (52 BAR) AT A MINIMUM DISTANCE OF 12 INCHES (30.5
CM) AWAY FROM THESE COMPONENTS. IF ELECTRICAL/ELECTRONIC COMPONENTS ARE SPRAYED, SPRAYING MUST NOT
BE DIRECT AND BE FOR BRIEF TIME PERIODS TO AVOID HEAVY
SATURATION.
Factory-Certified
Service Technician or
a Qualified JLG
Mechanic
Qualified JLG
Mechanic
– JLG Lift–
1. Use adjustable lifting devices, whenever possible, if
mechanical assistance is required. All slings (chains,
cables, etc.) should be parallel to each other and as
near perpendicular as possible to top of part being
lifted.
2. Should it be necessary to remove a component on
an angle, keep in mind that the capacity of an eyebolt or similar bracket lessens, as the angle between
the supporting structure and the component
becomes less than 90°.
3. If a part resists removal, check to see whether all
nuts, bolts, cables, brackets, wiring, etc., have been
removed and that no adjacent parts are interfering.
3121122
SECTION 2 - GENERAL
Component Disassembly and Reassembly
Hydraulic Lines and Electrical Wiring
When disassembling or reassembling a component, complete the procedural steps in sequence. Do not partially
disassemble or assemble one part, then start on another.
Always recheck your work to assure that nothing has been
overlooked. Do not make any adjustments, other than
those recommended, without obtaining proper approval.
Clearly mark or tag hydraulic lines and electrical wiring, as
well as their receptacles, when disconnecting or removing
them from the unit. This will assure that they are correctly
reinstalled.
Hydraulic System
1. Keep the system clean. If evidence of metal or rubber particles are found in the hydraulic system, drain
and flush the entire system.
Pressure-Fit Parts
When assembling pressure-fit parts, use an anti-seize or
molybdenum disulfide base compound to lubricate the
mating surface.
2. Disassemble and reassemble parts on clean work
surface. Clean all metal parts with non-flammable
cleaning solvent. Lubricate components, as
required, to aid assembly.
Bearings
1. When a bearing is removed, cover it to keep out dirt
and abrasives. Clean bearings in nonflammable
cleaning solvent and allow to drip dry. Compressed
air can be used but do not spin the bearing.
2. Discard bearings if the races and balls (or rollers)
are pitted, scored, or burned.
3. If bearing is found to be serviceable, apply a light
coat of oil and wrap it in clean (waxed) paper. Do not
unwrap reusable or new bearings until they are
ready to install.
4. Lubricate new or used serviceable bearings before
installation. When pressing a bearing into a retainer
or bore, apply pressure to the outer race. If the bearing is to be installed on a shaft, apply pressure to the
inner race.
Lubrication
Service applicable components with the amount, type,
and grade of lubricant recommended in this manual, at
the specified intervals. When recommended lubricants are
not available, consult your local supplier for an equivalent
that meets or exceeds the specifications listed.
Battery
Clean battery, using a non-metallic brush and a solution of
baking soda and water. Rinse with clean water. After
cleaning, thoroughly dry battery and coat terminals with
an anti corrosion compound.
Lubrication and Servicing
Components and assemblies requiring lubrication and
servicing are shown in the Lubrication Chart in Section 1.
2.3 LUBRICATION AND INFORMATION
Gaskets
Check that holes in gaskets align with openings in the
mating parts. If it becomes necessary to hand-fabricate a
gasket, use gasket material or stock of equivalent material
and thickness. Be sure to cut holes in the right location, as
blank gaskets can cause serious system damage.
Hydraulic System
Bolt Usage and Torque Application
1. Use bolts of proper length. A bolt which is too long
will bottom before the head is tight against its related
part. If a bolt is too short, there will not be enough
thread area to engage and hold the part properly.
When replacing bolts, use only those having the
same specifications of the original, or one which is
equivalent.
2. Unless specific torque requirements are given within
the text, standard torque values should be used on
heat-treated bolts, studs, and steel nuts, in accordance with recommended shop practices. (See
Torque Chart Section 1.)
3121122
– JLG Lift –
1. The primary enemy of a hydraulic system is contamination. Contaminants enter the system by various
means, e.g., using inadequate hydraulic oil, allowing
moisture, grease, filings, sealing components, sand,
etc., to enter when performing maintenance, or by
permitting the pump to cavitate due to insufficient
system warm-up or leaks in the pump supply (suction) lines.
2. The design and manufacturing tolerances of the
component working parts are very close, therefore,
even the smallest amount of dirt or foreign matter
entering a system can cause wear or damage to the
components and generally results in faulty operation. Every precaution must be taken to keep
hydraulic oil clean, including reserve oil in storage.
Hydraulic system filters should be checked,
cleaned, and/or replaced as necessary, at the specified intervals required in the Lubrication Chart in
2-3
SECTION 2 - GENERAL
Section 1. Always examine filters for evidence of
metal particles.
into another, be sure to clean all possible contaminants from the service container. Always clean the
mesh element of the filter and replace the cartridge
any time the system oil is changed.
3. Cloudy oils indicate a high moisture content which
permits organic growth, resulting in oxidation or corrosion. If this condition occurs, the system must be
drained, flushed, and refilled with clean oil.
4. It is not advisable to mix oils of different brands or
types, as they may not contain the same required
additives or be of comparable viscosities. Good
grade mineral oils, with viscosities suited to the
ambient temperatures in which the machine is operating, are recommended for use.
NOTE: Metal particles may appear in the oil or filters of new
machines due to the wear-in of meshing components.
Hydraulic Oil
1. Refer to Section 1 for recommendations for viscosity
ranges.
2. JLG recommends Mobilfluid 424 hydraulic oil, which
has an SAE viscosity of 10W-30 and a viscosity
index of 152.
NOTE: Start-up of hydraulic system with oil temperatures
below -15°F (-26°C) is not recommended. If it is necessary to start the system in a sub-zero environment, it will be necessary to heat the oil with a low
density, 100VAC heater to a minimum temperature of
-15°F (-26°C).
3. The only exception to the above is to drain and fill
the system with Mobil DTE 13 oil or its equivalent.
This will allow start up at temperatures down to -20°
F (-29° C). However, use of this oil will give poor performance at temperatures above 120°F (49°C). Systems using DTE 13 oil should not be operated at
temperatures above 200°F (94°C) under any condition.
3. While the unit is shut down, a good preventive maintenance measure is to make a thorough inspection
of all hydraulic components, lines, fittings, etc., as
well as a functional check of each system, before
placing the machine back in service.
Lubrication Specifications
Specified lubricants, as recommended by the component
manufacturers, are always the best choice, however,
multi-purpose greases usually have the qualities which
meet a variety of single purpose grease requirements.
Should any question arise, regarding the use of greases in
maintenance stock, consult your local supplier for evaluation. Refer to Section 1 for an explanation of the lubricant
key designations appearing in the Lubrication Chart.
2.4 CYLINDER DRIFT TEST
Maximum acceptable cylinder drift is to be measured
using the following methods.
Platform Drift
Measure the drift of the platform to the ground. Fully elevate the platform. Maximum allowable drift is 2 in. (5 cm)
in 10 minutes. If the machine does not pass this test, proceed with the following.
Cylinder Drift
Table 2-2. Cylinder Drift
Cylinder Bore Diameter
Changing Hydraulic Oil
1. Use of any of the recommended hydraulic oils eliminates the need for changing the oil on a regular
basis. However, filter elements must be changed
after the first 50 hours of operation and every 300
hours thereafter. If it is necessary to change the oil,
use only those oils meeting or exceeding the specifications appearing in this manual. If unable to obtain
the same type of oil supplied with the machine, consult local supplier for assistance in selecting the
proper equivalent. Avoid mixing petroleum and synthetic base oils. JLG Industries recommends changing the hydraulic oil annually.
2. Use every precaution to keep the hydraulic oil clean.
If the oil must be poured from the original container
2-4
Max. Acceptable Drift
in 10 Minutes
inches
mm
inches
mm
3
3.5
4
5
6
7
76.2
89
101.6
127
152.4
177.8
0.026
0.019
0.015
0.009
0.006
0.005
0.66
0.48
0.38
0.22
0.15
0.13
Drift is to be measured at the cylinder rod with a calibrated
dial indicator. The cylinder oil must be at ambient temperature and temperature stabilized.
The cylinder must have the normal load, which is the normal platform load applied.
If the cylinder passes this test, it is acceptable.
NOTE: This information is based on 6 drops per minute cylinder leakage.
– JLG Lift–
3121122
SECTION 2 - GENERAL
2.5 PINS AND COMPOSITE BEARING REPAIR
GUIDELINES
Filament wound bearings.
1. Pinned joints should be disassembled
inspected if the following occurs:
and
a. Excessive sloppiness in joints.
b. Noise originating from the joint during operation.
2. Filament wound bearings should be replaced if any
of the following is observed:
The checks and services listed in this schedule are not
intended to replace any local or regional regulations that
may pertain to this type of equipment nor should the lists
be considered as all inclusive. Variances in interval times
may occur due to climate and/or conditions and depending on the location and use of the machine.
JLG Industries requires that a complete annual inspection
be performed in accordance with the “Annual Machine
Inspection Report” form. Forms are supplied with each
new machine and are also available from JLG Customer
Service. Forms must be completed and returned to JLG
Industries.
a. Frayed or separated fibers on the liner surface.
b. Cracked or damaged liner backing.
c. Bearings that have moved or spun in their housing.
d. Debris embedded in liner surface.
3. Pins should be replaced if any of the following is
observed (pin should be properly cleaned prior to
inspection):
a. Detectable wear in the bearing area.
b. Flaking, pealing, scoring, or scratches on the pin
surface.
JLG INDUSTRIES REQUIRES THAT A COMPLETE ANNUAL
INSPECTION BE PERFORMED IN ACCORDANCE WITH THE
“ANNUAL MACHINE INSPECTION REPORT” FORM.
NOTE: This machine requires periodic safety and maintenance inspections by a JLG Dealer. A decal located
on the frame affords a place to record (stamp)
inspection dates. Notify dealer if inspection is overdue.
The inspection and maintenance code numbers are as follows:
c. Rusting of the pin in the bearing area.
1. Check for proper and secure installation.
4. Re-assembly of pinned joints using filament wound
bearings.
2. Check for visible damage and legibility.
3. Check for proper fluid level.
a. Housing should be blown out to remove all dirt
and debris...bearings and bearing housings
must be free of all contamination.
4. Check for any structural damage; cracked or broken
welds; bent or warped surfaces.
b. Bearing / pins should be cleaned with a solvent
to remove all grease and oil...filament wound
bearing are a dry joint and should not be lubricated.
5. Check for leakage.
c. Pins should be inspected to ensure it is free of
burrs, nicks, and scratches which would damage the bearing during installation and operation.
7. Check for proper operation and freedom of movement.
2.6 PREVENTIVE MAINTENANCE AND
INSPECTION SCHEDULE
8. Check for excessive wear or damage.
9. Check for proper tightness and adjustment.
10. Drain, clean and refill.
11. Check for proper operation while unit power is on.
The preventive maintenance and inspection checks are
listed and defined in the following table. This table is
divided into two basic parts, the “AREA” to be inspected,
and the “INTERVAL” at which the inspection is to take
place. Under the “AREA” of the table, the various systems
along with components that make up that system are
listed. The “INTERVAL” portion of the table is divided into
five columns representing the various inspection time
periods. The numbers listed within the interval column
represent the applicable inspection code for which that
component is to be checked.
3121122
6. Check for presence of excessive dirt or foreign
material.
12. Check for proper lubrication.
13. Check for evidence of scratches, nicks or rust and
for straightness of rod.
14. Check for condition of element; replace as necessary.
15. Check for proper inflation.
16. Clean or replace suction screen.
– JLG Lift –
2-5
SECTION 2 - GENERAL
Table 2-3. Preventive Maintenance and Inspection Schedule
AREA
PLATFORM
INTERVAL
10 HOURS
DAILY
1. Controller
1, 11
2. Switches
1, 11
3. Placards and Decals
1, 2
4. Control Tags
1, 2
5. Hoses and Cables
1
50 HOURS
WEEKLY
200 HOURS
MONTHLY
1000 HOURS
6 MONTHS
5, 8
6. Wear Pads
7. Handrail and Chains
500 HOURS
3 MONTHS
8
1, 4
CHASSIS
1. Batteries
3
2. Battery Charger
1
3. Hydraulic Pump/Motor
1
4. Valves
1
5. Hydraulic Filter* (Also see note)
5
5
5
5, 14
6. Hydraulic Hoses and Tubing
1
5
7. Hydraulic Oil Tank*
3
5
1
5, 6,13
8. Breather - Hydraulic Tank
9. Lift Cylinder
1, 7
11. Placards and Decals
1, 2
13. Drive Motors
14. Drive Torque Hubs
4
6, 14
10. Limit Switch
12. Wheel and Tire Assemblies
14
4
1
8, 9
1, 5
1, 6
1, 3, 5
1, 3, 5, 6
6
1, 6
8
15. Drive Brakes
16. Steer Cylinder
1
5, 6, 13
4
17. Steer Components
1
4, 6
8
18. Wheel Bearings
8
19. Sizzor Arms
1, 4
20. Safety Prop
1, 4
21. Wear Pads
8
22. Pivot Pins/Bolts
1, 4
23. Switches, Ground Control
1, 11
24. Control Tags
1,2
25. Hose and Cable
1
7, 8
4, 8
* Inspection and Maintenance Code 10 to be performed annually.
NOTE: If function speeds are slow on a fully charged machine a clogged filter may be indicated. Change filter.
2-6
– JLG Lift–
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
SECTION 3. CHASSIS & SCISSOR ARMS
3.1
CALIBRATIONS
6. Lift the platform up until it stops lifting, this will be the
lift cut-out height.
Elevation Sensor Calibration
(Prior to Software V13.6)
7. Using the analyzer, press ESCAPE, scroll to DIAGNOSTICS, press ENTER, scroll to ELEV SENSOR
and press ENTER. You should now see ANGLE
SNSR. The setting here should be 0.60v - 0.70v. This
is the rotary switch output voltage that is being sent
to J2-15 of GEC at the lift cutout mark. A fully elevated platform will read 2.95 volts.
NOTE: Make sure your analyzer is in ACCES LEVEL 1.
When using the analyzer the terms referring to
ROTARY & PROXIMITY sensors are ELEV SENSOR & ELEV PROX.
8. Press ESCAPE on the analyzer, scroll to SYSTEM
then to ELEV PROX OPEN. Now manually adjust the
proximity switch until you see the analyzer read
ELEV PROX CLOSED. At this point make sure you
have the maximum 5/16 in of clearance between the
eye of the proximity switch and the scissor arm. If
you don’t, shim it. If everything is okay at this point
tighten it down, this setting is required in case the
rotary switch fails. The proximity switch is a back up
to assure proper lift cut-out.
Use ELEV SENSOR sub level menu for rotary switch
adjustments.
Use SET ELEV SENSOR top level menu for proximity switch adjustment and final calibrations.
NOTE: If the Always set the rotary switch first before the
proximity switch because they back each other up in
the case of a component failure.
1. When mounting, make sure the rotary switch is
aligned with the bladed pin mounted on the scissor
arm. There must be a preload when installing the
rotary switch on the bladed pin bracket, similar to a
throttle actuator.
NOTE: If the gap ever increases beyond 5/16 in., the switch
may cause intermittent operation.
9. Completely lower the platform. Using the analyzer
press escape and scroll through DIAGNOSTICS and
then go to ELEV SENSOR, press ENTER. Check to
see that the following items are reading correctly.
2. There are (3) 3/8 mounting screws that hold the
switch onto the scissor arm mounting lug, make
sure they are snug, not loose, so you are able to
rotate the rotary switch.
ANGLE SNSR 0.40 - 0.45
ZEROED 0.00V
3. Make sure the deck is fully lowered. Plug in the analyzer and scroll through DIAGNOSTICS/ELEV SENSOR to ANGLE SNSR. This should read 0.40v 0.45v.
SENSOR OK
NOTE: Anytime the ground control board or if the rotary sensor is replaced the rotary sensor must be reset
(zeroed out).
DRIVE? YES
4. If the reading is not within the spec, adjust the rotary
switch by rotating the bracket and viewing the analyzer.
5. Loosen the hardware that holds the proximity switch
and allow the switch to drop to the bottom of the
slide bracket. Using the analyzer, press escape
twice and scroll through ACCESS LEVEL 2. enter
the password to get into ACCESS LEVEL 1. Scroll to
SET ELEV SENSOR and after pressing ENTER you
should hear the motion alarm sounding off. This
puts the machine in adjustment mode.
STOWED? YES
ELEVATED? NO
CALIB 0.40 - 0.45
10. If CALIB; reads whatever you set your rotary switch
to (0.40 - 0.45) then press ENTER.
11. Press ESCAPE until you arrive at DIAGNOSTICS,
then scroll over to top level menu SET ELV SENSOR, press ENTER, an alarm will sound off if your
machine is equipped with one. The analyzer will now
ask to SET ELEV SENSOR. At this point press
ENTER key. If everything tested properly the analyzer will read COMPLETE.
12. Now lift the machine up until it stops lifting, measure
the cutback height;
NOTE: If your machine does not have a motion alarm, the
following procedures will still apply.
3121122
– JLG Lift –
M3369/3369LE - 8 ft - 9.5 ft (2.4 - 2.9 m)
M4069/4069LE - 9.5 ft - 11.7 ft (2.9 - 3.6 m)
3-1
SECTION 3 - CHASSIS & SCISSOR ARMS
13. Press ESCAPE, remove analyzer and assure all
hardware is tight.
Tilt Sensor Calibration:
1. Drive the machine onto a measured level surface
(±0.5° for both x and y axis).
Elevation Sensor Calibration
(Software V13.6 and Higher)
2. Using the Analyzer, go to MENU: CALIBRATION;
TILT SENSOR. Press Enter. LEVEL VEHICLE will display. Press Enter again to calibrate.
Using the Analyzer, in Access Level 1, go to MENU: CALIBRATION:
1. SET STOW ELEV;
3. Both axis’ raw angles need to be within 5.0°, otherwise the machine is to unlevel and the software will
prohibit calibration. Should this occur, attempt to
dissect the three areas of error to find the primary
contributor:
a. Completely lower platform to stowed position.
b. Enter YES on the Analyzer.
c. COMPLETE will show on the analyzer when calibrated.
a. Machine mounting and/or grade:
With a digital level, measure the top of the
Ground Control box for levelness. If unable to
get a good reading, check the box’s mounting
surface for levelness.
2. SET 25FT ELEV (3369LE) or SET 30FT ELEV
(4069LE);
a. Raise platform to a height of 25 feet for the
3369LE or 30 feet for the 4069LE (measured
deck to ground).
b. Enter YES on the Analyzer.
c. COMPLETE will show on the analyzer when calibrated.
2
3. SET 30FT ELEV (3369LE) or SET 36FT ELEV
(4069LE);
a. Raise platform to a height of 30 feet on the
3369LE or 36 feet for the 4069LE (measured
deck to ground).
b. Enter YES on the Analyzer.
c. COMPLETE will show on the analyzer when calibrated.
NOTE: Elevation Proximity Switch must be mounted and
functioning properly to calibrate the Elevation Sensor.
1
1. Ground Control Box
2. Digital Level
Speed Sensor
The speed sensor is located at the lower side of the left,
front drive motor. If removing the speed sensor for any
reason use the following procedure.
1. Using an 18mm wrench, remove the speed sensor
from the left, front drive motor.
2. If reusing the speed sensor note the location of the
brass feral on the sensor. Do not remove, this will be
the depth gauge when you replace the sensor.
3. When replacing, seat the sensor so that it fits snug in
the motor on the brass feral.
NOTE: If replacing the speed sensor, the new sensor will
have a wax pill on the end of the sensor. Tighten
down until you feel the wax pill bottom out inside the
motor.
4. Tighten up the packing nut.
3-2
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
b. Tilt sensor mounting on machine or wedged
crooked in control box:
If the machine mounting/grade appears acceptable, open the Ground Control box carefully.
Observe whether the tilt sensor is properly
seated.
For the following troubleshooting steps, a bubble level
(smaller is better) will be needed and the machine must
be on a level surface:
1. On the Analyzer, go to Diagnostics/System and read
the tilt angle. If either angle reports +20.0°, there is
an electrical/electronic failure (tilt sensor, control
board, electrical connections).
2
a. Open the Ground Control Box.
b. Disconnect the sensor and clean any corrosion
off of the tilt sensor and control board connections.
c. Reassemble and test. If fault persists, replace tilt
sensor.
2. If the Analyzer displays angles other than +20.0°,
attempt to calibrate. If machine will not calibrate,
note the reason displayed on Analyzer:
a. SENSOR FAILURE – tilt sensor internal frequency is out of range (replace sensor).
1
b. NOT LEVEL - tilt sensor has either developed an
offset or it is to unlevel as mounted on the
machine.
Joystick Calibration
(SW V13.5 & Higher and P1.0 & Higher)
1. Ground Control Box
Using the Analyzer, in Access Level 1, go to MENU: CALIBRATION: JOYSTICK and press ENTER.
2. Tilt Sensor
c. Tilt sensor has developed an offset shift:
Remove the tilt sensor from the Ground Control
box, but keep both the tilt sensor and Ground
Control box electrically connected. Level one
axis of the tilt sensor and observe the raw reading (should be within ±2.0°). Do the same for the
other axis. If either axis is greater than ±2.0°,
replace the tilt sensor.
Some possible reasons that the tilt sensor will not calibrate are:
a. The surface the machine is sitting on is off level
by a few degrees (flat doesn’t imply level; parking lots are often not level).
1. Following the analyzer screen prompts:
a. Move the Joystick FORWARD and press ENTER.
b. Allow Joystick to be in CENTER position and
press ENTER.
c. Move the Joytstick REVERSE and press ENTER.
2. CAL COMPLETE or CAL FAILED will display on the
analyzer.
3. Possible reasons if calibration failed:
a. The forward position must be a lower voltage
than reverse position.
b. The difference between center and forward &
center and reverse must be atleast 1V.
b. The tilt sensor has failed one or both of the
channels (X axis and Y axis).
c. Tilt sensor has moisture intrusion that has
shifted its output.
d. Water and/or corrosion in the box has corrupted
electrical connections or caused a tilt sensor or
ground control board failure (observe any
cracks in the box).
e. The Ground Control Box, as mounted on the
machine, does not allow the tilt sensor to be
level.
3121122
– JLG Lift –
3-3
SECTION 3 - CHASSIS & SCISSOR ARMS
3.2
TILT SENSOR
1
Tilt Sensor, JLG P/N 4000006:
2
3
1
2
1. Ground Control Box
2. Tilt Sensor (JLG P/N 4000006)
Figure 3-1. Tilt Sensor Location
1. Tilt Sensor (JLG P/N 4000006)
Tilt Sensor Removal:
2. Screw, 6-32 x 3/4
3. Lockwasher
NOTE: Refer to Figure 3-2., Tilt Sensor Removal for numbers in parenthesis.
Figure 3-2. Tilt Sensor Removal
1. Disconnect the batteries.
2. Open the Ground Control Box to gain access to the
Tilt Sensor Assembly.
3. Remove the four Screws (2) and Lockwashers (3) to
remove the Tilt Sensor (1) from the Ground Control
Box.
NOTE: Follow the above procedures in reverse order when
installing the tilt sensor assembly. After installing, be
sure to calibrate the tilt sensor (refer to Section 3.1,
Calibrations).
3-4
– JLG Lift –
Table 3-1. Tilt Sensor Harness Chart
Wire Color
Function
Connector Pin
Red
VCC
1
Black
Ground
4
Blue
PWMX
2
Yellow
PWMY
3
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Tilt Sensor, JLG P/N 4000021:
2
6
7
2
1
1
5
4
3
1. Ground Control Box
2. Tilt Sensor Assembly (JLG P/N 1810140)
Figure 3-3. Tilt Sensor Location
NOTE: Refer to Figure 3-4., Tilt Sensor Removal for numbers in parenthesis.
1. Tilt Sensor (JLG P/N 4000021)
2. Sensor Mount
1. Disconnect the batteries.
3. Screw, 6-32 x 1
2. Open the Ground Control Box to gain access to the
Tilt Sensor Assembly.
4. Lockwasher
5. Standoff Insulator
3. Remove the four Screws (3), Lockwashers (4),
Standoff Insulators (5), and Washers (6) to remove
the Tilt Sensor (1) and Sensor Mount (2) from the
Ground Control Box.
6. Washer, 0.313 x 0.250 Nylon
7. Screw, M3.5 x 0.6 x 10
4. The Tilt Sensor (1) can be removed from the Sensor
Mount (2) by removing the three Screws (7).
NOTE: Follow the above procedures in reverse order when
installing the tilt sensor assembly. After installing, be
sure to calibrate the tilt sensor (refer to Section 3.1,
Calibrations).
3121122
– JLG Lift –
Figure 3-4. Tilt Sensor Removal
Table 3-2. Tilt Sensor Harness
Wire Color
Function
Connector Pin
Red
VCC
1
Green
PWMX
2
White
PWMY
3
Black
Ground
4
3-5
SECTION 3 - CHASSIS & SCISSOR ARMS
3.3
BATTERY MAINTENANCE AND
CHARGING
ammonia) and wire brush. Replace cables and/or
cable clamp bolts as required.
4. Clean battery post with wire brush then re-connect
cable to post. Coat non-contact surfaces with mineral grease or petroleum jelly.
IF REPLACING A BATTERY, EACH NEW BATTERY MUST WEIGH
AT LEAST 52 KG (115 LB). FAILURE TO REPLACE THE BATTERY
WITH ONE OF THE CORRECT WEIGHT WILL RESULT IN A
TIPOVER HAZARD WHICH COULD RESULT IN SERIOUS INJURY
OR DEATH.
5. When all cables and terminal posts have been
cleaned, ensure all cables are properly positioned
and do not get pinched. Close battery compartment
cover.
6. Start hydraulic system and ensure that it functions
properly.
JLG MACHINES EQUIPPED WITH DELTA Q BATTERY CHARGERS
ARE DESIGNED FOR THE BEST PERFORMANCE WITH OEM FACTORY APPROVED BATTERIES.
APPROVED JLG REPLACEMENT BATTERIES ARE AVAILABLE
THROUGH JLG' S AFTERMARKET PARTS DISTRIBUTION CENTERS OR JLG' S AFTERMARKET PROGRAMS. FOR ASSISTANCE
WITH PROPER BATTERY REPLACEMENT, PLEASE CONTACT
YOUR LOCAL JLG SUPPORT OFFICE.
BATTERIES APPROVED BY JLG HAVE BEEN TESTED FOR COMPATIBILITY WITH THE ALGORITHM PROGRAMMING OF THE
DELTA Q BATTERY CHARGER TO OPTIMIZE BATTERY LIFE AND
MACHINE CYCLE TIMES. THE USE OF NON APPROVED BATTERIES IN YOUR JLG EQUIPMENT MAY RESULT IN PERFORMANCE
ISSUES OR BATTERY CHARGER FAULT CODES. JLG ASSUMES
NO RESPONSIBILITY FOR SERVICE OR PERFORMANCE ISSUES
ARISING FROM THE USE OF NON APPROVED BATTERIES.
Battery Maintenance, Quarterly
Optional On Board Generator
EXHAUST GAS HAZARD. RUN THE GENERATOR IN A WELL VENTILATED AREA ONLY.
WHEN THE GENERATOR ENABLE CONTROL LOCATED IN THE
PLATFORM CONTROL BOX IS IN THE ON POSITION AND THE
GROUND EMERGENCY STOP SWITCH IN ON (PULLED OUT), THE
GENERATOR WILL START AUTOMATICALLY WHEN THE BATTERIES REACH A LOW-CHARGE STATE AUTOMATICALLY
CHARGING THE BATTERIES.
NOTE: The engine will automatically shut down under the
following conditions:
Charged Batteries
High Engine Oil Temperature
Low Engine Oil Pressure
Engine Overspeed
Generator Overvoltage
1. Open battery compartment cover to allow access to
battery terminals and (vent caps-wet batteries only).
WHEN ADDING WATER TO (WET) BATTERIES, ADD WATER
UNTIL ELECTROLYTE COVERS PLATES. DO NOT CHARGE BATTERIES UNLESS ELECTROLYTE COVERS THE PLATES.
NOTE: When adding distilled water to (wet) batteries, nonmetallic containers and/or funnels must be used.
To avoid electrolyte overflow, add distilled water to
batteries after charging.
When adding water to the battery, fill only to level
indicated or 3/8" above separators.
3-6
TO AVOID INJURY FROM AN EXPLOSION, DO NOT SMOKE OR
ALLOW SPARKS OR A FLAME NEAR BATTERY DURING SERVICING. ALWAYS WEAR EYE AND HAND PROTECTION WHEN SERVICING BATTERIES.
Battery Charging (On Board Charger) (MAC)
1. For maximum battery life:
2. Remove all vent caps (wet batteries only) and
inspect electrolyte level of each cell. Electrolyte level
should be to the ring approximately one inch from
top of battery. Fill batteries with distilled water only.
Replace and secure all vent caps.
a. Avoid completely discharging the batteries.
3. Remove battery cables from each battery post one
at a time, negative first. Clean cables with acid neutralizing solution (e.g. baking soda and water or
d. Be sure the battery fluid covers the battery
plates before charging, but to avoid overflow, do
not top off the fluid level until charging.
– JLG Lift –
b. Fully charge the batteries each day the machine
is used.
c. Charge the batteries at available times between
charging.
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
2. To charge the batteries, connect the charger to a
230 volt source with a 15 amp minimum capacity.
3. The charge cycle is complete when the 100% LED is
lit. Any other reading indicates the charge cycle is
not complete.
Battery Charger (Delta-Q)
The battery charger is located on a tray behind the hinged
JLG cover at the front of the machine, or on the sliding
engine tray on the (M) model machines.
4. The Charger will shut off automatically when the batteries are fully charged.
Depleted batteries will take approximately 17 hours to
charge.
Charging Sequence of Remote LED Card
1. Plug in charger.
2. All three LED’s (light emitting diode) flash three
times.
3. In sequence:
a. Green LED flashes once
b. Yellow LED flashes once
c. Red LED flashes once
4. All Three LED flash three times.
5. Yellow LED comes on indicates charger is charging.
Figure 3-6. Battery Charger Location
(M model shown)
6. Yellow LED will stay on until fully charged and green
LED will illuminate.
7. If Red LED remains on, this indicates a fault.
1
2
4
3
Figure 3-5. Remote LED Card
1. AC Voltage - Input Cable
2. Charger Interlock Cable
3. DC Power Cable to Batteries
4. LED Indicator Cable
Figure 3-7. Battery Charger
3121122
– JLG Lift –
3-7
SECTION 3 - CHASSIS & SCISSOR ARMS
Battery Charger Maintenance
Table 3-3. Delta-Q - Battery Charger Specs
BATTERY CHARGER
SPECIFICATION
OUTPUT
Nominal DC Output Voltage
USE CHARGER ONLY ON BATTERY SYSTEMS WITH AN ALGORITHM SELECTED THAT IS APPROPRIATE TO THE SPECIFIC
BATTERY TYPE. OTHER USAGE MAY CAUSE PERSONAL INJURY
AND DAMAGE.
48V
Maximum DC Output Voltage 52V
Maximum DC Output Current 20A
Maximum Interlock Current
LEAD ACID BATTERIES MAY GENERATE EXPLOSIVE HYDROGEN GAS DURING NORMAL OPERATION. KEEP SPARKS,
FLAMES, AND SMOKING MATERIALS AWAY FROM BATTERIES.
PROVIDE ADEQUATE VENTILATION DURING CHARGING. NEVER
CHARGE A FROZEN BATTERY.
1A
INPUT
AC Input Voltage
85-265VAC
Nominal AC Input Voltage
120VAC - 230VAC RMS
AC Input Frequency
45-65 HZ
Maximum AC Input Current
12A [email protected]
STUDY ALL BATTERY MANUFACTURERS’ SPECIFIC PRECAUTIONS SUCH AS RECOMMENDED RATES OF CHARGE AND
REMOVING OR NOT REMOVING CELL CAPS WHILE CHARGING.
OPERATION
Charging Indicator
Yellow LED
100% Charge Indicator
Green LED
Fault Indicator
Red LED
External Temp Sensor
Automatic - Input wire/Output Connector
PROTECTION
Output Reverse Polarity
Electronic Protection - Automatic Reset
Output Short Circuit
Electronic Protection - Automatic Reset
AC Overload
Current Limited
DC Overload
Current Limited
MECHANICAL
Operating Temperature
–22°F to +122°F
(–30°C to +50°C)
Housing
Shock and Water Resistant Aluminum
RISK OF ELECTRIC SHOCK. CONNECT CHARGER POWER CORD
TO AN OUTLET THAT HAS BEEN PROPERLY INSTALLED AND
GROUNDED IN ACCORDANCE WITH ALL LOCAL CODES AND
ORDINANCES. A GROUNDED OUTLET IS REQUIRED TO REDUCE
RISK OF ELECTRIC SHOCK - DO NOT USE GROUND ADAPTERS
OR MODIFY PLUG. DO NOT TOUCH UNINSULATED PORTION OF
OUTPUT CONNECTOR OR UNINSULATED BATTERY TERMINAL.
DISCONNECT THE AC SUPPLY BEFORE MAKING OR BREAKING
THE CONNECTIONS TO THE BATTERY WHILE CHARGING. DO
NOT OPEN OR DISASSEMBLE CHARGER. DO NOT OPERATE
CHARGER IF THE AC SUPPLY CORD IS DAMAGED OR IF THE
CHARGER HAS RECEIVED A SHARP BLOW, BEEN DROPPED,
OR OTHERWISE DAMAGED IN ANY WAY - REFER ALL REPAIR
WORK TO QUALIFIED PERSONNEL. NOT FOR USE BY CHILDREN.
1. For flooded lead-acid batteries, regularly check
water levels of each battery cell after charging and
add distilled water as required to level specified by
battery manufacturer. Follow the safety instructions
recommended by the battery manufacturer.
2. Make sure charger connections to battery terminals
are tight and clean.
3. Do not expose charger to oil or to direct heavy water
spraying when cleaning vehicle.
3-8
– JLG Lift –
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SECTION 3 - CHASSIS & SCISSOR ARMS
Battery Charger Troubleshooting
4. If this problem does not clear after the battery voltage is confirmed to be higher than 1.0V per cell and
all connections are good, return the charger for service.
No Lights at all
No Lights at all indicate that AC power to the charger is
not connected or that the AC voltage is too low. It could
also indicate an internal failure in the charger.
1. Check the connections to AC power. Check for AC
voltage between 90 and 260 VAC at the charger.
2. If the AC voltage is verified to be correct at the connection to the charger, and the charger still displays
no lights at all, return the charger for service.
[3 Flashes] - Charge Timeout
Indicates the battery failed to charge within the allowed
time. This could occur if the battery is of larger capacity
than the algorithm is intended for. In unusual cases it
could mean charger output is reduced due to high ambient temperature. It can also occur if the battery is damaged, old, or in poor condition.
1. Check the battery for damage such as shorted cells
and insufficient water. Try the charger on a good battery.
FAULT LED Flashing
The Fault LED flashes to indicate the microcontroller
inside the battery charger has detected a fault. The fault
detected is indicated by the number of flashes. Count the
number of flashes to determine the fault.
2. If the same fault occurs on a good battery, check the
connections on the battery and connection to AC,
and the AC voltage itself.
With any battery system, the most common problem will
be a faulty battery connection. Because of the high likelihood of a battery connection problem, it is always worthwhile to confirm that all connections are good before
checking for any other problems.
3. Confirm that the nominal battery pack voltage is the
same as the battery charger voltage.
4. This fault must be cleared manually by unplugging
the AC, waiting 30 seconds and reconnecting the
AC power.
[1 Flash] - High Battery Voltage
1. Indicates a high battery voltage. Check that the battery charger voltage is consistent with the battery
pack voltage. The first two digits of the four digit
model name indicate the battery voltage the charger
supports.
5. If a charger displays this fault on a battery pack, and
the pack is of questionable status, reset the charger
by disconnecting AC for 30 seconds, and then
reconnect the AC to start a new charge cycle. After a
few charge cycles, this problem could stop occurring as the pack "recovers."
2. Check for wiring errors.
3. This fault will automatically clear and the charger will
restart charging when this problem is removed.
4. High battery voltage could also occur if there is
another source charging the battery. Disconnect any
other sources during charging.
[4 Flashes] - Check Battery
This fault indicates the battery pack could not be trickle
charged up to the minimum level required for the normal
charge cycle to be started.
5. If this problem does not clear after the battery voltage is confirmed to be less than 2.4V per cell, return
the charger for service.
2. Check that one or more cells in the battery are no
shorted.
[2 Flashes] - Low Battery Voltage
1. Indicates either a battery failure, no battery connected, or a lower than expected battery voltage.
Check the battery and battery connections.
2. Check the nominal battery voltage. The first two digits of the four digit model name indicate the battery
voltage the charger supports. Confirm that a nominal battery voltage is the same as the charger voltage.
3. This fault will clear automatically when the low battery voltage problem is rectified.
3121122
1. Check that none of the battery pack connections
between modules are reversed or incorrectly connected.
– JLG Lift –
3. Confirm that the nominal battery pack voltage is the
same as the battery charger voltage.
4. Try the charger on a good battery.
5. If this fault occurs, the battery is likely in poor condition. Try to recover the pack with a charger that can
charge the individual cells - such as an automotive
charger. Be sure to set this charger to the appropriate voltage - 6V per 6V battery, 12V per 12V string/
battery.
3-9
SECTION 3 - CHASSIS & SCISSOR ARMS
[5 Flashes] - Over Temperature
This fault indicates the charger has become too hot during
operation. Though not damanging to the charger, charge
time will be extended significantly.
1. This fault indication will not clear automatically, but
the charger will restart charging automatically when
the temperature drops. The fault indicaiton must be
cleared manually by unplugging the AC, waiting 30
seconds and reconnecting the AC power.
Excessive Battery Watering Requirements or
Strong Sulphur (Rotten Egg) Smell
These symptoms indicate over-charging or high battery
temperature. These symptoms are unlikely to be caused
by too high a charge current since the maximum charge
current of the charger will be small compared to even a
moderately sized battery pack. The most likely cause for
this problem is incorrect charge algorithm setting and/or
high ambient temperatures.
2. If possible, move the machine to a cooler location.
3. Confirm that dirt or mud is not blocking the cooling
fins of the charger. Clean the charger. Rinse the
charger with a low pressure hose if required. Do no
use high pressure. Do not us a pressure washer.
[6 Flashes] - Over Load/Over Temperature
This fault indicates that the batteries will not accept charge
current, or an internal fault has been detected in the
charger. This fault will nearly always be set within the first
30 seconds of operation. If it occurs after the charger has
started charging normally, be sure to make a note of it.
1. Remove excessive AC loads from inverter if
installed.
2. Try to clear the fault by unplugging the AC, waiting
30 seconds and reconnecting the ac power.
1. Confirm that the battery pack is not too small - usually > 50Ah.
2. Confirm that the nominal battery voltage matches
the charger output voltage.
3. Confirm the correct battery charge algorithm. If the
battery pack is new, the algorthm will need to be
changed if the pack is not the same as the old one.
for instructions on how to determine and change the
battery charge algorithm see the following sub-section.
4. If the output voltage of the charger seems excessive,
return the charger for service. Contact JLG to get the
expected battery voltage settings for the charger in
question. Be sure to have the charger’s serial number and charge algorithm setting available when
calling.
3. Check all battery connections. Look for a high resistance connection.The most likely reason for this fault
is a fault in the battery such as a bad battery connection, an open cell, or insufficient water.
4. This fault will occur if an internal fuse inside the
charger blows. If the green wire is shorted to ground
even momentarily, this fuse will blow. To check the
fuse, measure with an ohmmeter between the green
and red wires with the AC disconnected. If a short
circuit is not measured, the fuse has blown. Return
unit to a service depot to have this fuse replaced.
5. If this fault occurs after battery charging has started,
confirm that AC power was not interrupted and that
all battery connections are good.
6. If all battery connections are good, an internal fault
has been detected and the charger must be brought
to a qualified service depot.
3-10
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Checking/Changing the Battery Charge Algorithm
3. Remove the AC power from the charger and reconnect the charger’s positive connector to the battery.
The charger is pre-loaded with programming algorithms
for the specific batteries detailed in Table 3-4, Battery
Algorithms. Contact JLG if your specific battery model is
not listed.
Each time AC power is applied with the battery pack not
connected, the charger enters an algorithm select/display
mode for approximately 11 seconds. During this time, the
current Algorithm # is indicated on the Yellow Charging
LED. A single digit Algorithm # is indicated by the number
of blinks separated by a pause. A two digit Algorithm # is
indicated by the number of blinks for the first digit followed
by a short pause, then the number of blinks for the second
digit followed by a longer pause.
NOTE: It is recommended to check a newly changed algorithm by repeating the above steps 1 and 3.
Table 3-4. Battery Algorithms
Algorithm #
143
DISCOVER EVL1GA-A
43
Harris Battery Discover EVGGC6A-A
35
JLG P/N 0400242
23
Douglas Flooded (JLG default)
GES Battery A1055
Trojan T105
US BATT GC-110-WNL
Trojan T105 PLUS
Champion CHGC2 GC2
US BATT EV-145-WNL
8
Concorde 10xAh AGM
7
J305 DV/DT CP
To check / change the charging algorithm:
1. Disconnect the charger positive connector from the
battery pack. Apply AC power and after the LED test,
the Algorithm # will display for 11 seconds.
2. To change the algorithm, touch the connector to the
battery’s positive terminal for 3 seconds during the
11 second display period and then remove. The
Algorithm # will advance after 3 seconds. Repeat
this procedure until the desired Algorithm # is displayed. A 30 second timeout is extended for every
increment. Incrementing beyond the last Algorithm
will recycle back to the first Algorithm. When the
desired Algorithm is displayed, touch the charger
connector to the battery positive terminal until the
output relay makes a clicking noise (approx. 10 seconds). The algorithm is now in the permanent memory.
3121122
Battery Type
6
DEKA 8G31 Gel
5
Trojan 30/31XHS
4
US Battery USB2200
3
T105 DV/DT CP
2
Trojan T105 tapped
1
Trojan T105
Battery Temperature Sensor
Machines equipped with the Delta-Q battery charger
include a battery temperature sensor. The sensor is
mounted to the negative terminal post of the inboard, front
battery on the machine’s left side mounted battery pack.
(See Figure 3-8.) The sensor is wired directly to the battery charger.
– JLG Lift –
3-11
SECTION 3 - CHASSIS & SCISSOR ARMS
BATTERY
BOX
BATTERY
CHARGER
BATTERY
TEMPERATURE
SENSOR
(DELTA-Q CHARGER)
BATTERY
BOX
ATTACHMENT
BOLTS
TO CONTACTOR
BATTERY
DISCONNECT
BATTERY
BOX
Figure 3-8. Batteries and Battery Charger
Removing the Battery Box
To remove the battery box, perform the following steps.
NOTE: The battery box and batteries complete weigh
approximately 670 lbs (304 kg).
3. Using a forklift, lift the battery box up enough to
clear the brackets on the back of the battery box and
remove the battery box from the machine.
1. Pull the handle on the battery disconnect to disconnect the batteries.
2. Remove the two attachment bolts that secure the
battery box to the frame.
3-12
NOTE: To make battery box removal easier, when possible,
raise the arms of the machine and install the safety
prop.
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
3.4
GENERATOR
• Start Control Relay
NOTE: Throughout the Generator section, the abbreviations
RBS and CTS are used. RBS stands for Rotary Battery System, which is the generator system. CTS
stands for Call To Start, which is the electronic inputs
which signal the generator to start and charge the
batteries.
The generator consists of a drive engine, controller, and
related components.
• Alternator
The alternator is a brushless, DC output alternator. The 3
phase output of the alternator is full wave rectified and
directed to the output terminator.
The output rating is 58 volts DC at 45 amps. Voltage regulation and current limiting is provided by the Engine/Generator Controller.
The rectifier diodes and output current sensor are located
in the alternator end.
• Dynamo and Dynamo Voltage Regulator
The engine is equipped with a 12 Volt, 15 Amp DC output
dynamo.
• Fuel Control Relay
The fuel control relay energizes the hold coil of the fuel
solenoid. The fuel control relay is energized by the
engine/generator controller.
• Fuel Solenoid
The fuel solenoid actuates the run/stop lever of the
engine. This solenoid has a pull and hold coil. The pull coil
is energized by the start control relay and the hold coil is
energized by the fuel control relay.
• Engine Oil Temperature Sensor
The engine oil temperature sensor is used to sense the
temperature of the oil in the sump of the engine. This sensor provides a signal to the engine/generator controller for
high engine temperature shutdown.
• Alternator Output Current Sensor
• Dynamo Output Fuse
The dynamo output fuse is used to protect the output of
the dynamo. This fuse is rated at 20 Amps DC, slow blow
and is located on the left side of the engine.
• Control Fuse
This fuse provides power to the engine/generator and the
relays for start control, fuel control, and pre-heater. This
fuse is rated at 15 Amps DC and is located on the right
side of the engine.
• Start Battery
A 12 volt lead-acid battery is utilized to provide starting
power for the generator and power for the generator controls. This battery is charged by the engine dynamo and
dynamo regulator when the engine is running.
• Engine Starter
The engine is equipped with a 12 Volt DC starter. This
starter provides mechanical power to crank the engine.
Electrical power for the starter is provided by the start battery. The starter is energized by the start control relay.
3121122
The start control relay energizes the solenoid of the
engine starter and the pull coil of the engine fuel solenoid.
The start control relay is located on the fuel solenoid
bracket on the right side of the engine. The start control
relay is energized by the engine/generator controller.
The alternator output current sensor provides a signal proportional to the output current of the alternator to the
engine/generator controller. This signal is used by the
controller to regulate the current output of the alternator.
The output current is regulated at 55 Amps DC. The alternator output current sensor is located inside the rear
cover of the alternator.
• Engine Speed Sensor
The engine speed sensor provides a signal proportional
to the rotational speed of the engine to the engine/generator controller. This signal is used by the controller to determine starter cut-out, overspeed fault, and underspeed
fault. This signal has failsafe protection, if it is not present
at the controller, the unit will fault with a loss of speed signal indication. The engine speed sensor is located inside
the recoil starter cover at the front of the engine.
• Engine Low Oil Pressure Switch
The engine is equipped with a low oil pressure switch. The
switch is closed when the oil pressure is below 14.2 psi
(1 Bar).
– JLG Lift –
3-13
SECTION 3 - CHASSIS & SCISSOR ARMS
Figure 3-9. Generator Components
3-14
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Timing Sequences
• RBS Shutdown Sequence
Once all CTS conditions have been removed, the RBS will
begin the shutdown sequence. If a CTS condition is initiated during the shutdown sequence, the RBS will return to
normal running operation until the CTS is removed.
• RBS Pre start Sequence
1. Time Delay Engine Start (TDES)
TDES is the period which the RBS waits to verify that
the CTS is valid rather than a transient condition.
1. Time Delay Engine Run (TDER)
Once the CTS condition is removed, the TDER
period begins. This period ensures that no further
CTS conditions occur prior to the cool down period.
2. Time Delay Pre-Heat (TDPH)
TDPH, if enabled, occurs after TDES has elapsed
and the engine temperature is below the factory set
engine preheat temperature setting. The engine pre
heater will be energized for the factory set preheat
delay period.
2. Time Delay Cool down (TDC)
Once the TDER period ends, the alternator output is
reduced to a minimal level in order to allow the
engine to cool down for the TDC period. If a CTS is
received during the TDC period, the CTS must last
for at least the TDES period for the RBS to return to
normal running operation.
Table 3-5. RBS Pre start Sequence
CTS (Call to Start)
TDES (Engine Start)
Table 3-7. RBS Shutdown Sequence
Preheat Delay
Remove CTS
RBS Startup Sequence
TDER Engine Run
TDC Cool down
• RBS Startup Sequence
Engine Stop
1. Crank Time
The RBS will crank for a period up to the crank time
or until the engine starts.
2. Rest Time
If the engine does not successfully start, the RBS will
wait for the rest time before attempting to crank the
engine again.
To Connect the JLG Control System Analyzer
to the Generator
The JLG Control System Analyzer can be used to monitor
generator settings and conditions. Connect the analyzer
as follows:
3. Crank Cycles
The RBS will attempt to start the engine up until the
number of crank cycles is reached. If the RBS does
not start, an Overcrank fault is indicated.
1. Connect the four pin end of the cable supplied with
the analyzer, to the connector behind the ground
control module located on the right side of the
machine next to the ground control station and connect the remaining end of the cable to the analyzer.
4. Time Delay Bypass (TDBP)
Once the engine starts, TDBP must elapse before
low oil pressure and underspeed shutdowns are
activated. This allows the engine to come up to normal operating conditions before enabling these
shutdowns are monitored.
Table 3-6. RBS Startup Sequence
Crank Time -> Rest Time
(Until Engine Start or # of Crank Cycles)
TDBP Bypass
Normal Running Operation
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3-15
Figure 3-10. Generator System Analyzer Flow Chart
SECTION 3 - CHASSIS & SCISSOR ARMS
3-16
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SECTION 3 - CHASSIS & SCISSOR ARMS
The ground control module contains the settings for
the generator.
ANALYZER
CONNECTION
Alarms and Fault Flash Codes
In the event of an RBS alarm, a flash code will be issued
and an alarm indicated on the analyzer.
NOTE: Alarms must be reset once the fault has been corrected.
Table 3-8. Generator System Flash Codes
Code
1-1
1-2
GROUND
CONTROL
1-3
1-4
NOTE: The cable has a four pin connector at each end of
the cable; the cable cannot be connected backwards.
1-5
2. Power up the Analyzer by pulling out the ground station EMS and positioning the Generator Enable
switch on the platform control box to the "on" position. Refer to Figure 3-10., Generator System Analyzer Flow Chart.
Alarm
Description
Low Oil Pressure
Shutdown due to low engine oil
pressure
High Engine
Temperature
Shutdown due to high engine oil
temperature
Engine Overspeed
Shutdown due to high engine
speed
Engine Underspeed/
Overcrank
Shutdown due to engine overcrank or underspeed
No Speed Signal
Shutdown due to loss of speed
signal
Overvoltage
Shutdown due to high output voltage
2-2
Engine Starting
System fault
Alarm not a shutdown; Indicates
problem with the engine starting
system
2-3
Not Used
2-1
2-4
Continuous
Off
Not Used
Loss of Voltage Sense Shutdown due to loss of voltage
sensing
Unit Disabled
No Faults. RBS enabled and can
respond to any CTS
Unit Disabled
RBS off or disabled; Will not
respond to any CTS
• Low Oil Pressure
Enabled once TDBP (time delay bypass) period has
elapsed after engine startup. If the low engine oil pressure
switch closes, the engine will stop immediately and a low
oil pressure alarm will be indicated.
• High Engine Temperature
If the engine oil temperature exceeds the high engine temperature setting, the engine will stop immediately and a
low oil pressure alarm will be indicated.
• Overspeed
If the engine speed exceeds the overspeed limit, the
engine will stop immediately and an overspeed alarm will
be indicated.
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SECTION 3 - CHASSIS & SCISSOR ARMS
• Underspeed
Enabled once TDBP (time delay bypass) period has
elapsed after engine startup. If the engine speed drops
below the underspeed limit, the engine will stop immediately and an engine underspeed alarm will be indicated.
• Overcrank
If the engine fails to start after a set number of start
attempts, the RBS will cease attempts to restart and an
engine overcrank alarm will be indicated.
• No Speed Signal
In the event of a loss of speed signal, the RBS will shutdown and an engine no speed signal alarm will be indicated. This shutdown is delayed by a factory set period to
ensure the fault was not momentary.
voltage CTS to be removed. This ensures that the batteries have accepted sufficient charge prior to shutting down
the RBS. This level is used along with the low battery voltage remove CTS level to determine when the RBS
removes the CTS after a low battery voltage CTS. If the
charging current falls below the finish charging current
while another CTS is active, the RBS will continue to operate at the normal/extended output voltage until all CTS’s
are removed.
Priming the Fuel Line
The following procedure is for re-priming the fuel line on
the generator engine in the event fuel system components
have been replaced or the unit has been run dry of fuel..
• Overvoltage
If the voltage measured at the alternator output exceeds
the high voltage setting, the RBS will stop immediately
and an RBS high output alarm will be indicated. This shutdown is delayed by a factory set period to ensure the fault
was not caused by a transient condition. This feature protects the batteries and load from high DC voltages.
1. Make sure the fuel line isn’t blocked or kinked.
2. Make sure fuel tank has fuel.
3. Disconnect the rubber fuel line at the fuel injector
pump.
• Engine Starting System Fault
Indicates a problem with either the engine start battery,
engine magneto, or magneto voltage regulator.
• Loss Of Voltage Sense
If the voltage measured at the alternator output is less
than half of the system nominal voltage, the RBS will stop
immediately and an RBS loss of voltage sense alarm will
be indicated. This feature protects the batteries and load
from high DC voltages due to a loss of output control.
• Run Inhibited
4. When fuel starts to flow out of the rubber line, reconnect the fuel line to the fuel injector pump.
The RBS unit is disabled by the run inhibited input.
5. Clean up any spilled fuel and try to start the generator again.
Output Current and Voltage Settings
• Normal/Extended Output Voltage
The normal/extended output voltage setting is the voltage
at which the alternator changes under normal operating
conditions.
• Current Limit
The current limit setting determines the maximum alternator output current.
7. Once fuel starts to flow, reconnect the fuel line to the
fuel injector pump.
8. Clean up any spilled fuel and try to start the generator again.
9. If no fuel flows there are some possibilities:
• High Voltage Shutdown Level
This setting determines the alternator output voltage at
which the high voltage shutdown occurs. This protects the
load from abnormally high voltages.
• Finish Charging Current
The finish charging current determines the level of the current alternator output must drop below for a low battery
3-18
6. If the engine still doesn’t start, remove the steel line
from the fuel injectoe pump.
– JLG Lift –
a. There is no fuel getting to the injector pump. No
fuel in tank, or obstruction in fuel line, or clogged
in line fuel filter.
b. The engine/camshaft rotation is not opening the
injection fuel pump. Using the recoil starter,
rotate the engine 1/3 of a turn and fuel should
spill from the fuel injector pump.
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SECTION 3 - CHASSIS & SCISSOR ARMS
10. Engine might run rough for 20 seconds or so, but it
will clean out.
3.5
2. Find where the harness attaches to the rear cover of
the generator and the connection point for the new
inline fuse.
SUPPLEMENTARY FUSE FOR APU
The purpose of this section is to describe the procedure to
add a supplementary fuse for the Engine Generator Controller for the APU.
Tools And Material
• - Weather proof fuse holder - JLG P/N 2400081
• - AGC1, 1 Amp fuse - JLG P/N 2400080
• - 45 cm of #16 AWG wire - JLG P/N 4920019
• - 2 X insulated butt splice connectors - JLG P/N
4460035
• - 6 X medium length wire ties - JLG P/N 4240033
3. Remove the socket head drive screw with a 5/32”
Allen key. Next remove the cable clamp from the
harness.
• - Wire/Side cutters
• - 5/32” Allen Key
• - Crimping tool
Procedure
BEFORE BEGINNING THIS PROCEDURE, ENSURE THAT ALL
SOURCES OF POWER ARE DISCONNECTED FROM THE APU!
This procedure is common for all applications of the APU.
The photos contained in this document illustrate the modification performed to an APU supplied in a JLG M450 lift.
1. Locate the harness at the rear of the APU.
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3-19
SECTION 3 - CHASSIS & SCISSOR ARMS
4. Cut and remove the Wire Ties holding the Harness
label to the harness. Next, remove the Wire Ties so
that the cable sleeve can be moved, exposing the
conductors of the harness.
5. Cut wire 106 going to the Engine/Generator Controller after the existing connection point and install the
conductors that lead to the new inline fuse holder.
Use insulated butt splice connectors for these conductors.
6. Re-install the harness with the new fuse in place.
7. Reconnect the lift and APU start battery. The APU is
now ready for use.
3-20
– JLG Lift –
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SECTION 3 - CHASSIS & SCISSOR ARMS
3.6 JOYSTICK CONTROLLER
Figure 3-11. Joystick Controller - (JLG P/N 1600308)
Table 3-9. Joystick Specifications
Table 3-10. Joystick Plug Loading Chart
Input Voltage
4.3V (±0.1V)
Terminal
Color
Function
Centered Output Voltage
2.2V (±0.1V)
1
Yellow
Steer Right
Full Positive (Rev) Deflection Output Voltage
4.0V (±0.1V)
2
Green
Steer Left
Full Negative (Fwd) Output Voltage
0.4V (±0.1V)
3
Brown
Pot Wiper
4
Red
Handle Common
5
N/A
Not Connected
6
White/Red
Pot (+)
7
Violet
Trigger Switch
8
Blue
Trigger Supply
9
White/Black
Pot (-)
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SECTION 3 - CHASSIS & SCISSOR ARMS
Figure 3-12. Joystick Controller - (JLG P/N 1600403)
Table 3-11. Joystick Specifications
Input Voltage
Table 3-12. Joystick Plug Loading Chart
5V
Terminal
Color
Function
Centered Output Voltage
4.25V to 2.60V
1
Yellow
Steer Right
Reverse Voltage
4.60V to 4.80V
2
Green
Steer Left
Forward Voltage
0.40V to 0.60V
3
Brown
Pot Wiper
4
Red
Handle Common
5
N/A
Not Connected
6
White/Red
Pot (+)
7
Violet
Trigger Switch
8
Blue
Trigger Supply
9
White/Black
Pot (-)
3-22
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SECTION 3 - CHASSIS & SCISSOR ARMS
Figure 3-13. Drive Components
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3-23
SECTION 3 - CHASSIS & SCISSOR ARMS
Power Controller
THE GEAR DRIVE TEMPERATURE SHOULD BE CHECKED PRIOR
TO ANY WORK BEING DONE. THIS IS IMPORTANT IF THE GEAR
DRIVE HAS RECENTLY BEEN OPERATED SINCE IT MAY BE HOT
AND CAUSE INJURY.
ENSURE THE AREA SURROUNDING THE DISCONNECT IS
CLEANED PRIOR TO OPERATION. ENSURE THAT DIRT OR
OTHER CONTAMINANTS DO NOT ENTER THE GEAR DRIVE.
1. Remove the two hex head bolts from the cover.
Figure 3-14. Power Controller
Table 3-13. Power Controller Cable Descriptions
From
To
Power Controller
F2
Right Side Drive Motor
F1
Right Side Drive Motor
F2
Left Side Drive Motor
F2
Power Controller
F1
Left Side Drive Motor
F1
Power Controller
S
Left Side Drive Motor
A2
Right Side Drive Motor
A1
Left Side Drive Motor
A1
Power Controller
A
Right Side Drive Motor
A1
Left Side Drive Motor
A2
Right Side Drive Motor
A2
Power Controller
B+
Contactor
++
3.7
2. Remove the cover.
TOWING
Disengaging for Towing
PRIOR TO OPERATING THE DISCONNECT THE MACHINE HAS TO
BE ON LEVEL GROUND AND COMPLETELY SECURED FROM ANY
MOVEMENT, I.E. VIA TOW BAR TO PULLING VEHICLE. THE
MACHINE SHOULD NOT BE MOVED UNLESS IT IS SECURED TO
THE TOWING VEHICLE TO PREVENT RUNAWAY.
ENSURE THE DISCONNECT MECHANISM IS ONLY OPERATED
WITH THE MACHINE AT A STANDSTILL.
3. Rotate the cover to show the inside diameter.
3-24
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
ENSURE THE DISCONNECT MECHANISM IS ONLY OPERATED
WITH THE MACHINE AT A STAND STILL.
THE GEAR DRIVE TEMPERATURE SHOULD BE CHECKED PRIOR
TO ANY WORK BEING DONE. THIS IS IMPORTANT IF THE GEAR
DRIVE HAS RECENTLY BEEN OPERATED SINCE IT MAY BE HOT
AND CAUSE INJURY.
ENSURE THE AREA SURROUNDING THE DISCONNECT IS
CLEANED PRIOR TO OPERATION. ENSURE THAT DIRT OR
OTHER CONTAMINANTS DO NOT ENTER THE GEAR DRIVE.
4. Press the cover sufficiently against the shift rod to
insert the bolts at least 2 to 3 threads into the cover.
This will subject the shift rod to spring force.
THE COVER IS UNDER SPRING FORCE
1. Remove the 2 hex head bolts securing the cover
evenly and remove the cover.
5. Install the bolts and torque 6.3 ft lbs (8.8 Nm) until
they are flush with the cover.
2. Rotate the cover 180° and secure with the two hex
head bolts.
6. The sun gear shaft and input shaft are now disconnected and the machine is ready to be towed.
BEFORE THE MACHINE IS SEPARATED FROM THE TOWING
VEHICLE, EITHER THE GEAR DRIVE HAS TO BE REENGAGED OR
SUITABLE MEASURES MUST BE TAKEN TO SECURE THE
MACHINE FROM MOVEMENT.
3. Torque the hex head bolts 6.3 ft lbs (8.8 Nm).
PULL VERY SLOWLY WITH THE TOWING VEHICLE CONNECTED
TO THE MACHINE TO ALLOW THE SPLINE OF THE SUN GEAR
SHAFT TO ENGAGE WITH THE SPLINE OF THE INPUT SHAFT.
Engaging after Towing is Complete
DO NOT OPERATE THE MOTOR TO MAKE THE SUN GEAR SHAFT
TO ENGAGE WITH THE SPLINE OF THE INPUT SHAFT.
PRIOR TO OPERATING THE DISCONNECT THE MACHINE HAS TO
BE ON LEVEL GROUND AND COMPLETELY SECURED FROM ANY
MOVEMENT, I.E. VIA TOW BAR TO PULLING VEHICLE. THE
MACHINE SHOULD NOT BE MOVED UNLESS IT IS SECURED TO
THE TOWING VEHICLE TO PREVENT RUNAWAY.
3121122
– JLG Lift –
4. Check to ensure all bolts are tight and all components are returned to their original positions.
5. The gear drive should now be reengaged and the
machine can be disconnected from the towing vehicle.
3-25
SECTION 3 - CHASSIS & SCISSOR ARMS
Figure 3-15. Torque Hub
3-26
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
3.8
DRIVE HUB
NOTE: The second stage planetary bearings (11) must be
replaced in sets of four pieces.
The final drive consists of two stages with an integrated
disconnect mechanism. Each stage incorporates a set of
matched planetary gears, which provide an equal load of
distribution. All torque transmitting components are made
of forged, quenched and tempered high-alloy steels.
External gears are carborized. Precision roller bearings
are used exclusively. Two large, tapered roller bearings
support the sprocket or wheel loads. A shaft seal protects
the unit against contamination.
Disassembly
Disassembly of Cover Unit (8)
1. Loosen and remove hex. hd. bolts (53) and remove
cover (51).
2. Remove Shaft rod (56), O-ring (54), and sleeve (52).
Disassembly of First Stage Planetary
Assembly
1. Push the sun gear shaft (43) out of the first stage.
1. Position drive so that one of the fill holes is at the
bottom of the end cover and drain the gear oil.
2. Remove snap rings (14) and press planet pins (5)
out of planet carrier (7) and planet gears (2).
2. Remove all bolts holding motor and remove motor
from drive.
3. Pull cylindrical roller bearing (10) out of planet gears
(2).
3. Compress the disc (59) using a simple fixture or
other suitable device.
4. Remove snap ring (16) from sun gear (3) and
remove the thrust washer (49).
4. Remove snap ring (66) and release pressure on disc
until loose. Remove tool and disc (59).
5. Remove the spring (55) from the input shaft (44) and
turn the unit so that cover (8) is in the up position.
Disassembly of the Second Stage Planet
Gears (1)
Press cylindrical roller bearings out of planet gears (1).
6. Remove screw plugs (22) and seal rings (21).
7. Remove snap ring (34), cover unit (8) from drive and
O-ring (33).
8. Remove first stage planetary assembly (7).
9. Remove hex. hd. bolts (23) to remove gear (33) and
O-ring (19).
10. Remove Snap rings (15) to pull off planet gears (1)
together with cylindrical roller bearings (11) from
spindle (60).
NOTE: Further disassembly of the hub is discouraged. Reinstallation of the shaft nut (4) requires a special tool
and a torque of 626 ft lbs (876 Nm) for proper reassembly. These components WILL fail if not properly
reassembled.
11. Inspect the planetary stage assemblies as complete
units. Thoroughly clean and check both the gearing
and the bearings for damage and apply new oil. If
gears or bearings need replacing, they must be
replaced as complete units.
NOTE: The first stage planetary bearings (10) must be
replaced in sets of three pieces.
The first stage planetary gears (11) must be
changed as a complete set of four and the manufacturer recommends changing the sun gear shaft (43)
along with this set of planets.
3121122
– JLG Lift –
3-27
SECTION 3 - CHASSIS & SCISSOR ARMS
1. Retaining Screws
9. Back-up Ring
17. Retaining Ring
2. Washers
10. Shaft
18. Bearing
3. Pressure Plate
11. Stator Disc
19. Retaining Ring
4. Case Seal
12. Sensor Ring
20. Dowel Pins
5. O-ring
13. Rotor Disc
21. Cover
6. Back-up Ring
14. Plate
22. Rotary Oil Seal
7. Piston
15. Springs
23.
8. O-ring
16. Spring Retainer
24.
Figure 3-16. Brake Assembly
3-28
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
3.9
DRIVE BRAKE - MICO
3. Install new bearing (18) and retaining ring (19) on
shaft (10).
Disassembly
4. Install shaft assembly and retaining ring (17) in
cover (21).
1. After removing the brake from its installation, place
brake on a clean dry work bench with mounting
plate uppermost.
2. Remove pressure plate (3) from cover (21) by
removing cap screws (1) and washers (2).
PRESSURE PLATE IS UNDER SPRING TENSION OF APPROXIMATELY 680 KG (1500 LB). THE FOUR CAP SCREWS SHOULD BE
LOOSENED EVENLY TO RELIEVE THE FORCE. IF A HYDRAULIC
PRESS IS AVAILABLE, 3000 LBS (1361 KGF) MINIMUM, THE
PRESSURE PLATE CAN BE HELD IN POSITION WHILE REMOVING THE CAP SCREWS AND WASHERS.
5. Install dowel pins (20), spring retainer (16) and
springs (15) in cover (21).
NOTE: Be sure to use the same number of springs and
spring pattern as recorded during disassembly.
6. Position plate (14) on springs (15). Hole in plate (14)
must line up with hole in cover (21).
NOTE: Discs (13, 11) and plate (14) must remain dry during
installation. No oil residue must be allowed to contaminate disc surfaces.
7. Press sensor ring (12) on rotor disc (13). Place a
new rotor disc (13) on shaft (10) until it contacts
plate (14). Install stator disc (11).
3. Remove case seal (4) from cover (21).
4. Remove piston (7) from pressure plate (3).
8. Install new o-rings (5, 8) and new back-up rings (6,
9) on piston (7). Note order of o-rings and back-up
rings. Insert piston (7) into pressure plate (3). Be
careful not to shear o-rings or back-up rings.
5. Remove o-rings (5, 8) and back-up rings (6, 9) from
piston (7).
9. Install new case seal (4) in cover (21).
IF THE SENSOR RING (12) IS DAMAGED OR NEEDS REPLACED,
THE ENTIRE BRAKE MUST BE REPLACED AS A UNIT. THE SENSOR RING IS NOT AVAILABLE AS A SERVICE PART.
10. Position pressure plate (3) on cover (21) aligning
dowel pins (20) with holes in pressure plate.
11. Install cap screws (1) and washers (2) and tighten
evenly to draw pressure plate (3) to cover (21).
Torque cap screws to 55 lb ft (74.6 NM).
6. Remove stack assembly, consisting of stator disc
(11), sensor ring (12), rotor disc (13), and plate (14)
from cover (21).
7. Remove dowel pins (20), springs (15), and spring
retainer (16) from cover (21).
NOTE: A hydraulic press will simplify the installation of the
pressure plate. Clamp pressure plate in position
while tightening the cap screws.
NOTE: Not all models use the same number of springs or
spring pattern. Record this information for reassembly purposes.
8. Remove retaining ring (17) from cover (21).
9. Remove shaft (10) by pressing or using a soft mallet
on male end of shaft (10).
10. Remove retaining ring (19) and bearing (18) from
shaft (10).
IF HYDROSTATIC BENCH TESTING IS PERFORMED ON THE
BRAKE ASSEMBLY, RELEASE PRESSURE SHOULD NOT EXCEED
2000 PSI (137.9 BAR) UNLESS TWO ADDITIONAL BOLTS ARE
USED FOR SUPPLEMENTAL CLAMPING.
Bleeding
I
1. Install brake in system and connect pressure lines.
11. Press rotary oil seal (22) from cover (21).
2. Bleed pressure release section of brake by pressurizing side inlet port and allowing air to escape from
top port. Pressure should not exceed 100 psi (6.9
bar) during bleeding.
Assembly
NOTE: Lubricate all rubber type components from repair kit
with clean type fluid used in the system.
1. Clean all parts thoroughly before assembly.
2. Press new rotary oil seal (22) into cover (21) taking
note to direction of seal.
3121122
3. Apply sufficient pressure to release brake and check
for proper operation in system.
NOTE: If damaged, replace the input and output gaskets
before assembling the brake to the hub and motor.
(See Figure 3-13. and Figure 3-16.)
– JLG Lift –
3-29
SECTION 3 - CHASSIS & SCISSOR ARMS
3.10 TORQUE HUB
1.
Spindle
12.
Thrust Washer
23.
Needle Bearing
34.
O-ring
2.
Lip Seal
13.
Spacer
24.
Thrust Spacer
35.
Retaining Ring, Int.
3.
Tapered Bearing Cone
14.
Seal Boot
25.
Planet Shaft
36.
Coupling
4.
Tapered Bearing Cup
15.
Thrust Spacer
26.
Planet Gear
37.
Input Shaft
5.
Tapered Bearing cone
16.
Input Carrier
27.
Roll Pin
38.
Input Sun Gear
6.
Ring Gear
17.
Thrust Washer
28.
Thrust Washer
39.
Output Sun Gear
7.
Hub (Housing)
18.
Needle Bearing
29.
Retaining Ring, Ext.
40.
O-ring
8.
Stud
19.
Planet Shaft
30.
Cover
41.
O-ring
9.
Retaining Ring, Ext.
20.
Planet Gear
31.
Disengage Cap
42.
Retaining Ring, Ext.
10.
Retaining Ring, Int.
21.
Output Carrier
32.
Hex Bolt
11.
Spring (1.460, 1.500)
22.
Thrust Washer
33.
Dowel Pin
Figure 3-17. Torque Hub Assembly
3-30
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Roll Test
The purpose of the roll test is to determine if the unit’s
gears are rotating freely and properly. You should be able
to rotate the gears in your unit by applying constant force
to the roll checker. If you feel more drag in the gears only
at certain points, then the gears are not rolling freely and
should be examined for improper installation or defects.
Some gear packages roll with more difficulty than others.
Do not be concerned if the gears in your unit seem to roll
hard as long as they roll with consistency.
Leak Test (Main Unit)
The purpose of a leak test is to make sure the unit is air
tight. You can tell if your unit has a leak if the pressure
gauge reading on your leak checking fitting starts to fall
after the unit has been pressurized and allowed to equalize. Leaks will most likely occur at the pipe plugs, the main
seal or wherever o-rings or gaskets are located. The exact
location of a leak can usually be detected by brushing a
soap and water solution around the main seal and where
the o-rings or gaskets meet on the exterior of the unit, then
checking for air bubbles. If a leak is detected in a seal, oring or gasket, the part must be replaced, and the unit
rechecked. Leak test at 10 psi for 20 minutes.
Figure 3-18. Bolt Torquing Sequence
Tightening and Torquing Bolts
If an air impact wrench is used to tighten bolts, extreme
care should be taken to ensure theat the bolts are not
tightened beyond their specified torque.
The following steps describe how to tighten and torque
bolts or socket head cap screws in a bolt circle.
1. Tighten (but do not torque) bolt "A" until snug.
2. Go to the opposite side of the botl circle and tighen
bolt "B" until equally snug.
3. Crisscross around the bolt circle and tighen remaining bolts.
4. Now use a torque wrench to apply a specified
torque to bolt "A".
5. Using the same sequence, crisscross around the
bolt circle and apply an equal torque to the remaining bolts.
3121122
– JLG Lift –
3-31
SECTION 3 - CHASSIS & SCISSOR ARMS
Main Disassembly
1. Coupling
7. Input Shaft
13. Housing
2. Retaining Ring
8. Carrier Subassembly
14. O-Ring
3. Ring Gear
9. Second Stage Sun Gear
15. O-Ring
4. Cover Subassembly
10. Output Stage Carrier Subassembly
16. Retaining Ring, Ext.
5. Washer
11. Flat Head Bolts
17. Retaining Ring, Ext.
6. First Stage Sun Gear
12. Ring Gear
18. ID Plate
Figure 3-19. Hub Main Disassembly
3-32
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Disassembly Instructions:
1. Perform the Roll Check and Leak Check, if applicable prior to disassembling the unit.
2. Drain oil from the unit.
3. Remove the Coupling (1) from Spindle End first.
4. Remove the Retaining Ring (2) by prying the open
end of the Retaining Ring out of the groove in the
Ring Gear (3) with a screwdriver, then grasp the
loose end with pliers and pull the Retaining Ring
completely out of the groove.
NOTE: On units with a ratio 48:1, the Sun Gear (9) and the
Input Shaft (7) wil need to be removed together.
10. Remove the Output Stage Carrier Subassembly
(10).
11. Loosen and remove the three Flat Head Bolts (11)
that retain the Ring Gear (12) to the Housing (13).
12. Lift the Ring Gear (12) off of the Housing (13).
13. Remove the O-ring (14) from between the Housing
(13) and the Ring Gear (12).
5. Remove the Cover Subassembly (4) from the unit.
The unit can be carefully pressurized with air to pop
the cover out of the unit. The Washer (5) may have
to be removed separately because of the loose
attachment.
6. Remove the First Stage Sun Gear (6) if applicable.
NOTE: On units with ratios greater than 36:1 numerically,
there will not be a separate First Stage Sun Gear (6),
as the gear teeth will be integral to the Input Shaft
(7).
7. Remove the Input Carrier Subassembly (8).
8. Remove the Second Stage Sun Gear (9).
9. Remove the Input Shaft (7).
3121122
– JLG Lift –
3-33
SECTION 3 - CHASSIS & SCISSOR ARMS
Output Carrier Disassembly
1. Roll Pin
5. Thrust Washers
2. Planet Shaft
6. Thrust Spacer
3. Carrier
7. Planet Gears
4. Needle Bearings
8. Thrust Washer
Figure 3-20. Output Carrier Disassembly
1. Using a 1/8" diameter punch, drive the Roll Pin (1)
into the Planet Shaft (2) until it bottoms against the
Carrier (refer to Figure 3-17.).
4. Slide the Planet Gear Sub-assembly (4 - 7) out of the
Output Carrier (3) being careful to not drop the Needle Bearings (4) in the process.
2. Using a soft face hammer, tap the Planet Shaft (2)
out of the Carrier (3).
5. Remove the 4 Thrust Washers (5), 28 Needle Rollers
(4) and the Thrust Spacer (6) from the Second Stage
Planet Gear (7).
3. Using a 1/8" diameter punch, drive the Roll Pin (1)
out of the Planet Shaft (2).
6. Repeat Steps 1-5 for the remaining two Planet Gears
(7).
NOTE: The Roll Pins (1) should not be reused when reassembling the unit.
7. Remove the Thrust Washer (8) from the counterbore
in the Output Carrier (3).
3-34
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Input Carrier Disassembly
1. Roll Pin
4. Planet Gears
2. Planet Shaft
5. Thrust Spacer
3. Carrier
6. Needle Bearings
Figure 3-21. Input Carrier Disassembly
1. Using a 1/8" diameter punch, drive the Roll Pin (1)
into the Planet Shaft (2) until it bottoms against the
Carrier (3).
2. Using a soft face hammer, tap the Planet Shaft (2)
out of the Carrier (3).
3. Using a 1/8" diameter punch, drive the Roll Pin (1)
out of the Planet Shaft (2).
4. Slide the Planet Gear (4) and the two Thrust Washers (5) out of the Carrier (3).
5. Remove the 14 Needle Bearings (6) from the bore of
the Planet Gear (4).
6. Repeat steps 1-5 for each of the two remaining
Planet Gears.
NOTE: The Roll Pins (1) should not be reused when reassembling the unit.
3121122
– JLG Lift –
3-35
SECTION 3 - CHASSIS & SCISSOR ARMS
Hub-Spindle Disassembly
1. Spindle
4. Bearing Cone
7. Boot Seal
2. Retaining Ring
5. Bearing Cup
8. Studs
3. Spacer
6. Hub
9. Bearing Cone
Figure 3-22. Hub-Spindle Disassembly
1. Place unit on bench with Spindle (1) end down.
7. Remove Seal from Hub.
2. Remove Retaining Ring (2) with appropriate tool.
NOTE: The Seal should NOT be reused when reassembling
the unit.
3. Remove Spacer (3).
4. Remove "A" position Bearing Cone (4) from Bearing
Cup (5) in Hub (6).
5. Lift Hub (6) off of Spindle (1). Remove Boot Seal (7)
from Hub if applicable.
8. Remove "B" position Bearing Cone (9) from Hub.
9. Using a soft steel rod, knock both Bearing Cups (5)
out of the Hub.
6. If necessary, press 9 Studs (8) out of Hub. Locate
Hub on Seal (refer to Figure 3-17.) end.
3-36
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Cover Disassembly
1. O-Ring
4. Hex Head Bolts
7. O-ring
2. Cover
5. Disengage Cap
8. O-ring Pipe Plugs
3. Thrust Washer
6. Disengage Rod
Figure 3-23. Cover Disassembly
1. Remove O-ring (1) from the groove in the Cover (2).
4. Pull Disengage Rod (6) out of the Cover.
2. Remove the Thrust Washer (3) from Cover pockets.
5. Use an appropriate tool to remove the O-ring (7)
from the internal groove in the Cover.
3. Unscrew the two Hex Head Bolts (4) and remove the
Disengage Cap (5) from the Cover.
3121122
– JLG Lift –
6. Remove the two O-ring Pipe Plugs (8) from the
Cover.
3-37
SECTION 3 - CHASSIS & SCISSOR ARMS
Input Carrier Sub-Assembly
1. Roll Pin
2. Planet Shaft
3. Carrier
4. Planet Gears
5. Thrust Spacer
6. Needle Bearings
Figure 3-24. Input Carrier Sub-Assembly
1. Apply a liberal coat of grease to the bore of one
Input Planet Gear (4).
6. Following the Thrust Washer, place the Planet Gear
with Needle Bearings onto the Planet Shaft.
2. Line the inside of the Planet Gear with 14 Needle
Bearings (6).
7. Following the Planet Gear, place one more Thrust
Washer onto the Planet Shaft. Align the Thrust
Washer in the same manner described in Step 5.
NOTE: The last roller installed must be installed end wise.
That is, the end of the last roller must be placed in
between the ends of the two rollers which form the
space, and then slid, parallel to the other rollers, into
place.
NOTE: Be sure not to hit the Planet Gears when driving in
the Roll Pins (1).
3. Set Carrier (3) in an upright position.
4. Insert a Planet Shaft (2) into the planet shaft hole in
the end of the Carrier opposite the splined end. The
end of the Planet Shaft that does NOT have the roll
pin hole should be inserted into the carrier FIRST.
5. Place one Thrust Washer (5) onto the end of the
Planet Shaft. Make sure the flat faces towards the
inside of the carrier and make sure the button fits in
the pocket on the inside of the Carrier towards the
OD.
3-38
8. Now insert the Planet Shaft through the opposite
planet shaft hole on the Carrier. Use an alignment
punch or similar tool to align the roll pin holes on the
Carrier and Planet Shaft.
9. Drive the Roll Pins down into the aligned roll pin
holes. Pin should be flush with the flat of the Carrier.
10. Repeat Steps 1-9 for the installation of the two
remaining Planet Gears.
NOTE: Some grease may need to be applied tothe Thrust
Washers to hold them in place while installing the
Planet Gears.
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Output Carrier Sub-Assembly
1. Roll Pin
2. Planet Shaft
3. Carrier
4. Needle Bearings
5. Thrust Washers
6. Thrust Spacer
7. Planet Gears
8. Thrust Washer
Figure 3-23. Output Carrier Sub-Assembly
7. Place the Thrust Washer (8) into counterbore of the
Carrier (3). BE SURE the small diameter side of the
Thrust Washer is facing the planet gear side.
1. Apply a liberal coat of grease to the bore of one Output Planet Gear (7).
2. Line the inside of the Planet Gear with 14 Needle
Bearings (4).
8. Place the Planet Gear Sub-assembly into the Carrier.
Visually align the planet gear bore with one of the
planet shaft holes on the Carrier.
NOTE: The last roller installed must be installed end wise.
That is, the end of th last roller must be placed in
between the ends of the two rollers which form the
space, and then slid, parallel to the other rollers, into
place.
3. Place the Spacer (6) into the bore of the Output
Planet.
4. Repeat Step 2 to put in second roll of Needle Bearings.
5. Apply grease to hold two Thrust Washers together
and onto Output Planet Gear counterbore. Do the
same to the other side.
6. Repeat Steps 1-5 to finish the assembly of the two
remaining Output Planet Gears.
3121122
9. Insert a Planet Shaft (2) into the planet shaft hole
described in Step 8 on the Carrier. The end of the
planet shaft that does NOT have the roll pin hole
should be inserted into the Carrier FIRST.
10. Now insert the Planet Shaft through the first set of
Thrust Washers, Planet Gear, then the second set of
Thrust Washers. Use an alignment punch or similar
tool to align the roll pin holes on the Carrier and
Planet Shaft.
NOTE: Be sure not to hit the Planet Gears when driving in
the Roll Pins (1).
11. Drive the Roll Pin down into the aligned roll pin
holes. Pin should be flush with OD of Carrier.
12. Repeat Steps 7-11 for the installation of the two
remaining Planet Gears.
– JLG Lift –
3-39
SECTION 3 - CHASSIS & SCISSOR ARMS
Hub-Spindle Sub-Assembly
1. Spindle
2. Retaining Ring
3. Spacer
4. Bearing Cone
5. Bearing Cup
6. Hub
7. Boot Seal
8. Studs
9. Bearing Cone
Figure 3-24. Hub-Spindle Sub-Assembly
6. Press Seal Boot (7) onto Hub, if required. Turn Hub
over and lower onto Spindle (1).
NOTE: Apply a light coat of oil on all component parts during assembly.
7. Install Bearing Cone (4) into Bearing Cup, position
"A".
1. Place the Hub (6) into a pressing base. Press 9
Studs (8) into the Hub.
8. Place Bearing Spacer (3) on top of Bearing Cone.
NOTE: Use enough pressure to press in studs. Don’t use
excessively high pressure to press in Studs as this
may crack Hub.
Spray a generous amount of oil on bearings during
installation.
2. Press Bearing Cup (5), position "A" into Hub using
appropriate pressing tool.
3. Turn Hub over and press Bearing Cup, position "B"
into Hub using appropriate pressing tool.
9. Using appropriate tool, install Retaining Ring (2) into
Spindle groove. Make sure ring is completely seated
in groove.
NOTE: Extra bearing pre-load caused by using tool in Step
#9 must be removed. This should be done by placing
a tool (NOT THE SAME TOOL USED IN STEP #9)
on the end of the Spindle, and then striking the tool
with a piece of barstock. This should be adequate to
remove any additional bearing pre-load.
4. Place Bearing Cone (9) into Bearing Cup, position
"B".
5. Grease Seal (refer to Figure 3-17.) lip and press Seal
into Hub using appropriate tool until seal is flush
with end of Hub.
3-40
– JLG Lift –
3121122
SECTION 3 - CHASSIS & SCISSOR ARMS
Cover Sub-Assembly
1. O-Ring
4. Hex Head Bolts
7. O-ring
2. Cover
5. Disengage Cap
8. O-ring Pipe Plugs
3. Thrust Washer
6. Disengage Rod
Figure 3-25. Cover Sub-Assembly
1. Grease O-Ring (7) and insert groove in Cover (2).
2. Assemble Disengage Cap (5) onto Cover using two
Hex Head Bolts (4). Torque bolts to 70-80 in-lbs.
3. Insert Disengage Rod (6) into hole in Cover until it
touches the inside of the Disengage Cap.
4. Grease the face of the Thrust Washer (3) and place
in the Cover making sure the tangs on the Washer
seat into the pockets in the Cover.
5. Install the O-ring Pipe Plugs (8) into the Cover. The
plugs should be hand tight according to SAE standard.
NOTE: The Disengage Rod can be inserted either end first.
3121122
– JLG Lift –
3-41
SECTION 3 - CHASSIS & SCISSOR ARMS
Main Assembly
1. Coupling
7. Input Shaft
13. Housing
2. Retaining Ring
8. Carrier Subassembly
14. O-Ring
3. Ring Gear
9. Second Stage Sun Gear
15. O-Ring
4. Cover Subassembly
10. Output Stage Carrier Subassembly
16. Retaining Ring, Ext.
5. Washer
11. Flat Head Bolts
17. Retaining Ring, Ext.
6. First Stage Sun Gear
12. Ring Gear
18. ID Plate
Figure 3-26. Hub Main Assembly
3-42
– JLG Lift –
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SECTION 3 - CHASSIS & SCISSOR ARMS
8. Place the Input Shaft spline end into mesh with the
Internal Coupling (1) splines.
NOTE: All components should receive a generous amount
of lubricant oil as they are being assembled.
9. With the modified spline end facing up, place the
Output Sun Gear into mesh with the Output Planet
Gears.
1. Place Hub-Spindle Sub-Assembly on a bench.
2. Grease O-Ring (14) and place it into the groove of
the Housing (13).
3. Place the Ring Gear (12) onto the Hub. Align the 3
shipping cap screw holes on the Hub and Ring
Gear.
10. Place the Input Carrier Sub-Assembly (8) onto the
Output Sun Gear splines. Drop the First Stage Sun
Gear (6) into mesh with the planet gears for specific
ratios, if required. (No timing required).
4. Install the 3 Flat Head Bolts (11) into the Ring Gear
and Hub. Torque the Bolts to 15-20 ft-lbs.
11. Grease the O-Ring (15) and insert into the groove in
the Cover Subassembly (4).
5. Place Output Stage Carrier Subassembly (10) into
mesh with the Spindle splines.
12. Install the Cover Subassembly into the Ring Gear (3)
counterbore and install the Retaining Ring (2) into
the groove in the Ring Gear.
6. Place the External Retaining Ring (16) over the 13T
spline to the retaining groove on the Input Shaft (7).
NOTE: For ratio 48:1, assemble the Second Stage Sun
Gear (9) over the Input Shaft first, then install the
External Retaining Ring.
7. Using an appropriate tool, install the Retaining Ring
(17) into the groove on the Output Sun.
3121122
13. Attach the ID Plate (18) onto the unit using the Drive
Screw (not shown).
14. Check disconnect, roll and air check the unit, leak
check the brake, and record release pressure.
15. Insert the Plastic Plug (not shown) into place, if
applicable.
– JLG Lift –
3-43
SECTION 3 - CHASSIS & SCISSOR ARMS
NOTES:
3-44
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
SECTION 4. HYDRAULICS
4.1 SERVICING AND MAINTENANCE
GUIDELINES
3. If a part resists removal, check to see whether all
nuts, bolts, cables, brackets, wiring, etc. have been
removed and that no adjacent parts are interfering.
General
Component Disassembly and Reassembly
The following information is provided to assist you in the
use and application of servicing and maintenance procedures contained in this chapter.
Safety and Workmanship
Your safety and that of others is the first consideration
when engaging in the maintenance of equipment. Always
be conscious of weight. Never attempt to move heavy
parts without the aid of a mechanical device. Do not allow
heavy objects to rest in an unstable position. When raising
a portion of the equipment, ensure that adequate support
is provided.
Cleanliness
When disassembling or reassembling a component, complete the procedural steps in sequence. Do not partially
disassemble or assemble one part, then start on another.
Always recheck your work to assure that nothing has been
overlooked. Do not make any adjustments, other than
those recommended, without obtaining proper approval.
Pressure Fit Parts
When assembling pressure fit parts, use an “anti-seize” or
molybdenum disulfide base compound to lubricate the
mating surface.
Bearings
1. When a bearing is removed, cover it to keep out dirt
and abrasives. Clean bearings in nonflammable
cleaning solvent and allow to drip dry. Compressed
air can be used but do not spin the bearing.
1. The most important single item in preserving the
long service life of a machine is to keep dirt and foreign materials out of the vital components. Precautions have been taken to safeguard against this.
Shields, covers, seals and filters are provided to
keep oil supplies clean; however, these items must
be maintained on a scheduled basis in order to function properly.
2. Discard bearings if the races and balls (or rollers)
are pitted, scored or burned.
3. If bearing is found to be serviceable, apply a light
coat of oil and wrap it in clean (waxed) paper. Do not
unwrap reusable or new bearings until they are
ready to be installed.
2. At any time when hydraulic oil lines are disconnected, clear adjacent areas as well as the openings
and fittings themselves. As soon as a line or component is disconnected, cap or cover all openings to
prevent entry of foreign matter.
3. Clean and inspect all parts during servicing or maintenance, and assure that all passages and openings
are unobstructed. Cover all parts to keep them
clean. Be sure all parts are clean before they are
installed. New parts should remain in their containers until they are ready to be used.
Component Removal and Installation
1. Use adjustable lifting devices, whenever possible, if
mechanical assistance is required. All slings (chains,
cables, etc.) should be parallel to each other and as
near perpendicular as possible to top of part being
lifted.
4. Lubricate new or used serviceable bearings before
installation. When pressing a bearing into a retainer
or bore, apply pressure to the outer race. If the bearing is to be installed on a shaft, apply pressure to the
inner race.
Gaskets
Check that holes in gaskets align with openings in the
mating parts. If it becomes necessary to hand fabricate a
gasket, use gasket material or stock of equivalent material
and thickness. Be sure to cut holes in the right location as
blank gaskets can cause serious system damage.
Bolt Usage and Torque Application
2. Should it be necessary to remove a component on
an angle, keep in mind that the capacity of an eyebolt or similar bracket lessens, as the angle between
the supporting structure and the component
becomes less than 90°.
3121122
– JLG Lift –
1. Use bolts of proper length. A bolt which is too long
will bottom before the head is tight against its related
part. If a bolt is too short, there will not be enough
thread area to engage and hold the part properly.
When replacing bolts, use only those having the
same specifications of the original, or one which is
equivalent.
4-1
SECTION 4 - HYDRAULICS
2. Unless specific torque requirements are given within
the text, standard torque values should be used on
heat treated bolts, studs and steel nuts, in accordance with recommended shop practices.
hydraulic oil clean, including reserve oil in storage.
Hydraulic system filters should be checked,
cleaned, and/or replaced at the specified intervals
required in Section 1. Always examine filters for evidence of metal particles.
Hydraulic Lines and Electrical Wiring
3. Cloudy oils indicate a high moisture content which
permits organic growth, resulting in oxidation or corrosion. If this condition occurs, the system must be
drained, flushed, and refilled with clean oil.
Clearly mark or tag hydraulic lines and electrical wiring, as
well as their receptacles, when disconnecting or removing
them from the unit. This will assure that they are correctly
reinstalled.
4. It is not advisable to mix oils of different brands or
types, as they may not contain the same required
additives or be of comparable viscosities. Good
grade mineral oils, with viscosities suited to the
ambient temperatures in which the machine is operating, are recommended for use.
Hydraulic System
1. Keep the system clean. If evidence of metal or rubber particles are found in the hydraulic system, drain
and flush the entire system.
2. Disassemble and reassemble parts on clean work
surface. Clean all metal parts with non-flammable
cleaning solvent. Lubricate components, as
required, to aid assembly.
Lubrication
NOTE: Metal particles may appear in the oil or filters of new
machines due to the wear-in of meshing components.
Hydraulic Oil
1. Refer to Section 1 for recommendations for viscosity
ranges.
Service applicable components with the amount, type,
and grade of lubricant recommended in this manual, at
the specified interval. When recommended lubricants are
not available, consult your local supplier for an equivalent
that meets or exceeds the specifications listed.
Batteries
Clean batteries using a non-metallic brush and a solution
of baking soda and water. Rinse with clean water. After
cleaning, thoroughly dry batteries and coat terminals with
an anti-corrosion compound.
Lubrication and Servicing
Components and assemblies requiring lubrication and
servicing are shown in Section 1.
2. JLG recommends DTE 11Hydraulic Oil, which has
an SAE viscosity of 10W and a viscosity index of
140.
NOTE: Start-up of hydraulic system, not using DTE 11, with
oil temperatures below -15°F (-26°C) is not recommended. If it is necessary to start the system in a
sub-zero environment, it will be necessary to heat
the oil with a low density, 100VAC heater to a minimum temperature of -15°F (-26°C).
Changing Hydraulic Oil
4.2 LUBRICATION INFORMATION
Hydraulic System
1. The primary enemy of a hydraulic system is contamination. Contaminants enter the system by various
means, e.g.; inadequate hydraulic oil, allowing moisture, grease, filings, sealing components, sand, etc.
to enter when performing maintenance, or by permitting the pump to cavitate due to insufficient system warm-up.
2. The design and manufacturing tolerances of the
component working parts are very close, therefore,
even the smallest amount of dirt or foreign matter
entering a system can cause wear or damage to the
components and generally results in faulty operation. Every precaution must be taken to keep
4-2
– JLG Lift –
1. Use of any of the recommended hydraulic oils eliminates the need for changing the oil on a regular
basis. However, filter elements must be changed
after the first 50 hours of operation and every 250
hours thereafter. If it is necessary to change the oil,
use only those oils meeting or exceeding the specifications appearing in this manual. If unable to obtain
the same type of oil supplied with the machine, consult local supplier for assistance in selecting the
proper equivalent. Avoid mixing petroleum and synthetic base oils. JLG Industries recommends changing the hydraulic oil annually.
2. Use every precaution to keep the hydraulic oil clean.
If the oil must be poured from the original container
into another, be sure to clean all possible contaminants from the service container. Always replace the
filter cartridge any time the system oil is changed.
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SECTION 4 - HYDRAULICS
3. While the unit is shut down, a good preventive maintenance measure is to make a thorough inspection
of all hydraulic components, lines, fittings, etc., as
well as a functional check of each system, before
placing the machine back in service.
Lubrication Specifications
Specified lubricants, as recommended by the component
manufacturers, are always the best choice, however,
multi-purpose greases usually have the qualities which
meet a variety of single purpose requirements. Should
any question arise regarding the use of greases in maintenance stock, consult your local supplier for evaluation.
Refer to Section 1 for an explanation of the lubricant key
designations appearing in the Lubrication Chart.
4.3 CYLINDERS - THEORY OF OPERATION
1. Cylinders are of the double acting type. The Lift and
Steer systems incorporate double acting cylinders.
A double acting cylinder is one that requires oil flow
to operate the cylinder rod in both directions. Directing oil, by actuating the corresponding control valve
to the piston side of the cylinder, forces the piston to
travel toward the rod end of the barrel, extending the
cylinder rod piston attached to rod. When the oil
flow is stopped, movement of the rod will stop. By
directing oil to the rod side of the cylinder, the piston
will be forced in the opposite direction and the cylinder rod will retract.
2. Holding valves are used in the lift circuits to prevent
retraction of the cylinder rod should a hydraulic line
rupture or leak develop between the cylinder and its
related control valve.
A solenoid operated three way spool valve controls flow to
the brakes to release the brakes.When energized it allows
flow to the brake parts until the brake pressure switch is
satisfied.
Pressure relief valves limit the pressure in the steer circuit
and the rod end of each lift cylinder. When the pressure in
one of those circuits reaches the set point of the valve, the
valve opens, allowing enough flow to return to the reservoir so that the set pressure is not exceeded. An adjusting
screw on each cartridge relief valve allows the set pressure to be adjusted.
The aluminum manifold provides the passages through
which the hydraulic oil is diverted to provide the desired
movement of the actuators. No moving parts of the valves
slide against the manifold and so it is not subject to wear.
4.5 COMPONENT FUNCTIONAL
DESCRIPTION
Hydraulic Pump
The single stage gear pump is attached to the electric
motor located in the left side tray of the machine.
Manual Descent
The manual descent cable handle is located at the rear of
the machine frame.
4.6 WEAR PADS
The original thickness of the sliding wear pads is 5 in (12.7
cm). Replace sliding pads when worn to 4.7 in (11.9 cm).
4.4 VALVES - THEORY OF OPERATION
4.7 MOTOR CONTROLLER - MODES OF
OPERATION
Control Valves
Traction Motor (Drive)
The main control valve consists of cartridge type valves in
an aluminum manifold. The cartridge valves provide for
control of flow, volume of flow and pressure in the hydraulic system.
Drive in either forward or reverse will start only if the following conditions are satisfied:
1. Function switches off.
The flow to the lift cylinder(s) is provided by a solenoid
operated 3 way spool valve.When flow is required to lift
the load the solenoid is energized in one direction. When
the solenoid is not energized the cylinder is held in place
by the holding valve mounted on the cylinder.
2. No procedure or diagnostic faults present.
The directional control valve for steer is a solenoid operated, three position, 4-way sliding spool type valve. Energizing one of the electrical coils on a valve will divert the
supply of hydraulic oil to provide motion of that function in
one direction. Energizing the other coil will divert the oil for
motion in the other direction. When neither coil is energized, the supply of hydraulic oil is blocked.
4. FWD or REV selected as appropriate.
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3. Depress drive select. Lights indicating drive at the
platform control will flash. The controller must be
moved within 3 seconds after the drive select illuminates.
Once in “drive” mode, activating a function switch shall
not cause drive mode to be exited, the pump/traction contactor drive shall not be energized it will be left at the traction position. If a function switch is selected during
traction, a procedure fault will occur when neutral is
– JLG Lift –
4-3
SECTION 4 - HYDRAULICS
selected, remaining until a function switch and both directions are no longer selected.
4.9 CYLINDER CHECKING PROCEDURES
When the controller is returned to neutral, the controller
will control smooth stopping of the machine, using plug
braking, before the brake is allowed to operate.
NOTE: Cylinder checks must be performed any time a cylinder component is replaced or when improper system
operation is suspected.
NOTE: Depressing the lift function switch while driving will
not interrupt drive function.
Cylinder Without Counterbalance Valves
(Steer)
Pump Motor (LIft)
1. Using all applicable safety precautions, activate
hydraulic system and fully extend cylinder to be
checked. Shut down hydraulic system.
Pump motor drive will start only if the following conditions
are satisfied:
2. Carefully disconnect hydraulic hose from retract port
of cylinder. There will be initial weeping of hydraulic
fluid which can be caught in a suitable container.
After initial discharge, there should be no further
leakage from the retract port.
1. Accelerator in neutral position.
2. Traction mode off (brake applied).
3. Depress lift select. the lights indicating lift select at
the platform control will flash. The accelerator must
be moved within 3 seconds after the lift light illuminates.
3. Activate hydraulic system, and activate cylinder
extend function.
4. If cylinder retract port leakage is less than 6-8 drops
per minute, carefully reconnect hose to retract port
and retract cylinder. If leakage continues at a rate of
6-8 drops per minute or more, cylinder repairs must
be made.
NOTE: Depressing the drive function switch while lifting will
not interrupt lift function.
Any time brushes are being replaced in a drive motor
or pump motor, all brushes in the motor should be
replaced.
5. With cylinder fully retracted, shut down motor and
carefully disconnect hydraulic hose from cylinder
extend port.
4.8 FEATURES
6. Activate hydraulic system and activate cylinder
retract function. Check extend port for leakage.
Traction Mode
7. If extend port leakage is less than 6-8 drops per
minute, carefully reconnect hose to extend port,
then activate cylinder through one complete cycle
and check for leaks. If leakage continues at a rate of
6-8 drops per minute or more, cylinder repairs must
be made.
NOTE: The lift up and drive functions are proportional.
The drive function is fully proportional with automatic
speed cutback above elevation. The system is designed
for maximum traction to be delivered to both wheels at all
times.
Machines equipped with oscillating axle will have oscillation below elevation cutback speed only.
Cylinders With Single Counterbalance Valve
(Lift Cylinder)
Table 4-1. Cutout Heights
Function
M3369/3369LE
M4069/4069LE
Elevated Cutback Height
8 ft - 9 ft 6 in
(2.4 m - 2.9 m)
9 ft 6 in - 11 ft 8 in
(2.9m - 3.6m)
N/A
28 ft - 30 ft
(8.5 m - 9.1m)
Drive Cutout Height
OPERATE ALL FUNCTIONS FROM GROUND CONTROL STATION
ONLY.
1. Using all applicable safety precautions, activate
hydraulic system.
2. Raise platform completely and place a suitable overhead lifting device approximately 1 in (2.5 cm) below
the platform.
3. After completing the above, shut down hydraulic
system and allow machine to sit for 10-15 minutes.
This is done to relieve pressure in the hydraulic
4-4
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
lines. Carefully remove hydraulic hoses from appropriate cylinder port block.
4. There will be initial weeping of hydraulic fluid, which
can be caught in a suitable container. After the initial
discharge, there should not be any further leakage
from the ports. If leakage continues at a rate of 6-8
drops per minute or more, the following cylinder
repairs must be made. If the retract port is leaking,
the piston is leaking, the piston seals are defective
and must be replaced. If the extend port is leaking,
the counterbalance is defective and must be
replaced.
6. If no repairs are necessary or when repairs have
been made, carefully reconnect hydraulic hoses to
the appropriate ports.
7. Activate hydraulic system and run cylinder through
complete cycle to check for leaks and operation.
4.10 CYLINDER REMOVAL AND
INSTALLATION
Lift Cylinder Removal
1. Place the machine on a flat and level surface. Turn
power on and raise the platform. Turn power off and
attach a suitable lifting device to the platform.
5. If no repairs are necessary or when repairs have
been made, carefully reconnect hydraulic hoses to
the appropriate ports.
2. Remove the bolt, locknut and keeper shaft securing
the cylinder rod attach pin to the upper inner arm
assembly. Using a suitable brass drift, drive out the
rod end attach pin from the arm assembly.
6. Remove lifting device from platform, activate hydraulic system and run cylinder through complete cycle
to check for leaks and operation.
3. Retract the cylinder rod completely.
Cylinders with Duel Counterbalance Valves
(Oscillating Cylinders)
4. Tag and disconnect, then cap the lift cylinder
hydraulic lines and ports.
5. Remove the bolt, locknut and keeper shaft securing
the cylinder barrel attach pin to the upper inner arm
assembly. Using a suitable brass drift, drive out the
rod end attach pin from the arm assembly.
OPERATE ALL FUNCTIONS FROM GROUND CONTROL STATION
ONLY.
1. When working on oscillating axle cylinder, place
machine on firm level surface.
6. Carefully remove the cylinder from the scissor lift
and place in a suitable work area.
Lift Cylinder Installation
2. Using all applicable safety precautions, activate
hydraulic system.
1. Install lift cylinder in place using a suitable slings,
aligning barrel end attaching pin mounting holes on
lower arm assembly.
3. Shut down hydraulic system and allow machine to
sit for 10-15 minutes. This is done to relieve pressure
in the hydraulic lines. Carefully remove hydraulic
hoses from appropriate cylinder port block.
2. Using a suitable drift, drive the barrel end attach pin
through the mounting holes in the lift cylinder and
the lower arm assembly. Secure in place with bolt,
locknut and keeper shaft.
4. There will be initial weeping of hydraulic fluid, which
can be caught in a suitable container. After the initial
discharge, there should not be any further leakage
from the ports. If leakage continues at a rate of 6-8
drops per minute or more, the following cylinder
repairs must be made. If the retract port is leaking,
the piston is leaking, the piston seals are defective
and must be replaced. If the extend port is leaking,
the counterbalance is defective and must be
replaced.
5. To check piston seals, carefully remove the counterbalance valve from the retract port. After initial discharge there should not be any further leakage from
the ports. If leakage occurs at a rate of 6-8 drops per
minute or more, the piston seals are defective and
must be replaced.
3121122
3. Remove cylinder port plugs and hydraulic line caps
and correctly attach lines to cylinder ports.
4. Extend the cylinder rod until the attach pin hole
aligns with those in the upper arm assembly. Using a
suitable drift, drive the cylinder rod attach pin
through the aligned holes, taking care to align the
pin retaining holes with the hole on the arm assembly. Secure the pin in place with bolt, locknut and
keeper shaft.
5. Lower platform to stowed position and shut down
motor. Check hydraulic fluid level and adjust accordingly.
NOTE: Always check hydraulic fluid level after completely
elevating and lowering machine.
– JLG Lift –
4-5
SECTION 4 - HYDRAULICS
4.11 CYLINDER REPAIR
5. Using a suitable spanner wrench, loosen the spanner nut retainer and remove the spanner nut from
the cylinder barrel.
NOTE: The following are general procedures that apply to
all of the cylinders on this machine. Procedures that
apply to a specific cylinder will be so noted.
6. Attach a suitable pulling device to the cylinder rod
port block or cylinder rod end, as applicable.
Disassembly
DISASSEMBLY OF THE CYLINDER SHOULD BE PERFORMED ON
A CLEAN WORK SURFACE IN A DIRT FREE WORK AREA.
EXTREME CARE SHOULD BE TAKEN WHEN REMOVING THE CYLINDER ROD, HEAD, AND PISTON. AVOID PULLING THE ROD OFFCENTER, WHICH COULD CAUSE DAMAGE TO THE PISTON AND
CYLINDER BARREL SURFACES.
1. Operate the hydraulic power source and extend the
cylinder. Shut down and disconnect the power
source. Adequately support the cylinder rod, if necessary.
2. If applicable, remove the cartridge-type holding
valve and fittings from the cylinder port block. Discard o-rings.
Figure 4-3. Rod Support
7. With the barrel clamped securely, apply pressure to
the rod pulling device and carefully withdraw the
complete rod assembly from the cylinder barrel.
8. Using suitable protection, clamp the cylinder rod in
a vise or similar holding fixture as close to the piston
as possible.
Figure 4-1. Barrel Support
3. Place the cylinder barrel into a suitable holding fixture.
9. If applicable, loosen and remove the nut which
attaches the piston to the rod, then remove the piston from the rod.
10. If applicable, loosen and remove the cap screw(s)
securing the tapered bushing to the piston.
11. Insert the capscrew(s) in the threaded holes in the
outer piece of the tapered bushing. Progressively
tighten the cap screw(s) until the bushing is loose
on the piston, then remove the bushing from the piston.
12. Screw the piston counter-clockwise, by hand, and
remove the piston from the cylinder rod.
13. Remove and discard the piston o-rings, back-up
rings, guidelock rings and hydrolock seals.
Figure 4-2. Capscrew Removal
14. If applicable, remove the piston spacer from the rod.
4. To aid in realignment, mark cylinder head and barrel
with a center punch.
4-6
15. Remove the rod from the holding fixture. Remove
the cylinder head and retainer plate from the rod.
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
Cleaning and Inspection
GARMAX
BUSHING
1. Clean all parts thoroughly in an approved cleaning
solvent.
2. Inspect the cylinder rod for scoring, tapering, ovality,
or other damage. If necessary, dress rod with
Scotch Brite or equivalent. Replace rod if necessary.
3. Inspect threaded portion of rod for damage. Dress
threads as necessary.
4. Inspect inner surface of cylinder barrel tube for scoring or other damage. Check inside diameter for
tapering or ovality. Replace if necessary.
5. Inspect threaded portion of barrel for damage. Dress
threads as necessary.
6. Inspect piston surface for damage and scoring and
for distortion. Dress piston surface or replace piston
as necessary.
7. Inspect threaded portion of piston for damage.
dress threads as necessary.
8. Inspect seal and o-ring grooves in piston for burrs
and sharp edges. Dress applicable surfaces as necessary.
9. Inspect cylinder head inside diameter for scoring or
other damage and for ovality and tapering. Replace
as necessary.
Figure 4-4. Oil-lite Bearing Installation
14. Inspect travel limiting collar or spacer for burrs and
sharp edges. If necessary, dress inside diameter
surface with Scotch Brite or equivalent.
15. If applicable, inspect port block fittings and holding
valve. Replace as necessary.
16. Inspect the oil ports for blockage or the presence of
dirt or other foreign material. Repair as necessary.
17. If applicable, inspect piston rings for cracks or other
damage. Replace as necessary.
Assembly
NOTE: Prior to cylinder assembly, ensure that the proper
cylinder seal kit is used.
Apply a light film of hydraulic oil to all components
prior to assembly.
10. Inspect threaded portion of head for damage. Dress
threads as necessary.
1. Using a special tool, pictured in the following illustration, install a new rod seal into the applicable cylinder head gland groove. Refer to the following
illustration for the proper tool size.
11. Inspect seal and o-ring grooves in head for burrs
and sharp edges. Dress applicable surfaces as necessary.
12. Inspect cylinder head outside diameter for scoring
or other damage and ovality and tapering. Replace
as necessary.
13. If applicable, inspect rod and barrel bearings for
signs of correct lubrication and excessive wear. If
necessary, replace bearings as follows:
a. Thoroughly clean steel bushing hole of burrs,
dirt, etc. to facilitate bearing installation.
b. Inspect steel bushing for wear or other damage.
If steel bushing is worn or damaged, rod or barrel (as applicable) must be replaced.
Figure 4-5. Rod Seal Installation
c. Using arbor of the correct size, carefully press
the bearing into the steel bushing.
NOTE: Install the cylinder pin into the Garmax bearing dry.
Lubrication is not required with chrome pins and
bearings.
3121122
WHEN INSTALLING NEW “POLY-PAK” TYPE PISTON SEALS,
ENSURE SEALS ARE INSTALLED PROPERLY. (SEE FIGURE 4-9.)
FOR CORRECT SEAL ORIENTATION. IMPROPER SEAL INSTALLATION COULD RESULT IN CYLINDER LEAKAGE AND IMPROPER
CYLINDER OPERATION.
– JLG Lift –
4-7
SECTION 4 - HYDRAULICS
2. Using a soft mallet, tap a new wiper seal into the
applicable cylinder head gland groove. Install a new
wear ring into the applicable head gland groove.
Figure 4-6. Wiper Seal Installation
Figure 4-8. Piston Seal Kit Installation
3. Place a new o-ring and back-up seal in the applicable outside diameter groove of the cylinder head.
WHEN REBUILDING THE LIFT CYLINDER, APPLY LOCTITE #242
T O TA P E R E D B U S H I N G B O LT S , T H E N T I G H T E N B O LT S
SECURELY. REFER TO TABLE 4-2, CYLINDER PISTON NUT
TORQUE SPECIFICATIONS AND TABLE 4-3, HOLDING VALVE
TORQUE SPECIFICATIONS FOR PROPER BOLT TORQUE VALUES.
10. Install the bolts into the bushing using Loctite #242.
Refer to Cylinder Component Torque Specifications
Table for proper bolt torque values.
11. Remove the cylinder rod from the holding fixture.
Figure 4-7. Installation of Head Seal Kit
4. Install a washer ring onto the rod, then carefully
install the head gland on the rod, ensuring that the
wiper and rod seals are not damaged or dislodged.
Push the head along the rod to the rod end, as
applicable.
12. Place new guidelock and hydrolock seals in the
applicable outside diameter grooves of both the piston and the cylinder head.
13. Position the cylinder barrel in a suitable holding fixture.
5. Carefully slide the piston spacer onto the rod.
6. If applicable, correctly place a new o-ring and backup rings in the inner piston diameter groove.
7. Using suitable protection, clamp the cylinder rod in
a vise or similar holding fixture as close to the piston
as possible.
8. Carefully thread the piston on the cylinder rod hand
tight, ensuring that the o-ring and back-up rings are
not damaged or dislodged.
Figure 4-9. Poly-Pak Piston Seal Installation
9. Thread the piston onto the rod until it abuts the
spacer end and install the tapered bushing.
NOTE: When installing the tapered bushing, the piston and
mating end of the rod must be free of oil.
4-8
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
Table 4-3. Holding Valve Torque Specifications
EXTREME CARE SHOULD BE TAKEN WHEN INSTALLING THE
CYLINDER ROD, HEAD, AND PISTON. AVOID PULLING THE ROD
OFF-CENTER, WHICH COULD CAUSE DAMAGE TO THE PISTON
AND CYLINDER BARREL SURFACES.
Figure 4-10. Rod Assembly Installation
Description
Torque Value
Sun - 7/8 hex M20 x1.5 thds
30 - 35 ft lbs
(41 - 48 Nm)
Sun - 1-1/8 hex 1 - 14 UNS thds
45 - 50 ft lbs
(61 - 68 Nm)
Sun - 1-1/4 hex M36 x 2 thds
150 - 160 ft lbs
(204 - 207 Nm)
Racine - 1-1/8 hex 1-1/16 - 12 thds
50 - 55 ft lbs
(68 - 75 Nm)
Racine - 1-3/8 hex 1-3/16 - 12 thds
75 - 80 ft lbs
(102 - 109 Nm)
Racine - 1-7/8 hex 1-5/8 - 12 thds
100 - 110 ft lbs
(136 - 149 Nm)
14. With the barrel clamped securely, and while adequately supporting the rod, insert the piston end into
the cylinder barrel. Ensure that the piston loading oring and seal ring are not damaged or dislodged.
NOTE: These cylinders use setscrews which should be discarded and replaced whenever they are removed.
15. Continue pushing the rod into the barrel until the cylinder head gland can be inserted into the cylinder
barrel.
20. Place new o-rings and seals in the applicable outside diameter grooves of both the piston and the cylinder head.
16. Secure the cylinder head gland using the washer
ring and socket head bolts.
21. Position the cylinder barrel in a suitable holding fixture.
17. After the cylinder has been reassembled, the rod
should be pushed all the way in (fully retracted) prior
to the reinstallation of any holding valve or valves.
18. If applicable, install the cartridge-type holding valve
and fittings in the port block using new o-rings as
applicable.
WHEN REBUILDING THE LIFT CYLINDERS, APPLY LOCTITE 242
TO PISTON NUT AND SETSCREWS.
Table 4-2. Cylinder Piston Nut Torque Specifications
3121122
Description
Nut Torque Value
(Wet)
Lift Cylinder
(3369)
800 - 1000 ft lbs
(1120 - 1400 Nm)
LIft Cylinder
(4069)
1125 - 1375 ft lbs
(1575 - 1925 Nm)
Steer Cylinder
150 ft lbs
(210 Nm)
19. Remove cylinder rod from the holding fixture.
EXTREME CARE SHOULD BE TAKEN WHEN INSTALLING THE
CYLINDER ROD, HEAD AND PISTON. AVOID PULLING THE ROD
OFF-CENTER, WHICH COULD CAUSE DAMAGE TO THE PISTON
AND CYLINDER BARREL SURFACES.
22. With barrel clamped securely, and while adequately
supporting the rod, insert the piston end into the cylinder barrel. Ensure that the piston loading o-ring
and seal ring are not damaged or dislodged.
23. Continue pushing the rod into the barrel until the cylinder head gland can be inserted into the barrel cylinder or if applicable until the cylinder head threads
engage the barrel threads.
24. If applicable, apply loctite #222 and secure the cylinder head retainer using a suitable chain wrench.
25. Insert the other cylinder head gland into the barrel
cylinder. Secure the cylinder head retainer using a
suitable chain wrench.
26. After the cylinder has been reassembled, the rod
should be pushed all the way in (fully retracted) prior
to the reinstallation of any holding valves.
– JLG Lift –
4-9
SECTION 4 - HYDRAULICS
27. If applicable, install the cartridge type holding valve
and fittings in the rod port block using new o-rings
as applicable. Refer to Table 4-3, Holding Valve
Torque Specifications for proper torque.
4.13 OSCILLATION CYLINDER BLEEDING
Bleeding Procedure
1. Run one side wheel onto a ramp or block of wood.
On the other side, the lockout cylinder should be
extended.
IF THE CYLINDER IS TO BE TESTED PRIOR TO INSTALLATION ON
THE MACHINE, EXTREME CARE SHOULD BE USED TO INSURE
THAT THE OUTER END OF THE ROD IS SUPPORTED. USE
EITHER A TRAVELING OVERHEAD HOIST, FORKLIFT, OR OTHER
MEANS TO SUPPORT THE OVERHANGING WEIGHT OF THE
EXTENDING ROD.
2. Block the rear wheels and disconnect the drive
hubs.
3. Open up the bleeder screw on the bottom of the
extended side lockout cylinder. Disconnect coil on
the flow control valve. Have an assistant hold lift up
switch (causing pump to run continually) for approx.
10 seconds or until all the air bubbles are no longer
visible. Then close the bleeder screw while pump is
running.
4.12 STEER CYLINDER REMOVAL
1. Park the machine on a firm and level surface.
2. Using proper lifting devices raise the machine to
access the steer cylinder form underneath.
4. Open bleeder on the top of the retracted lockout cylinder. Let hydraulic oil run for approx. 10 seconds or
until air bubbles are no longer visible. Then close
the bleeder screw.
NOTE: Be sure and use proper equipment to stabilize the
machine while performing maintenance underneath.
3. Remove both hydraulic lines from the steer cylinder
and allow excess oil in lines to drain into a suitable
container.
4. Remove the nut and bolt from the barrel end of the
cylinder from underneath the machine.
5. Remove the nut and bolt from the rod end of the cylinder from out at the spindle.
5. Fully oscillate the axle in the opposite direction and
repeat step three.
Checking Oscillation Cylinders
After bleeding the lockout cylinders, check to see that
they are holding their position when oscillated.
6. Remove cylinder from machine.
1. Run one wheel onto a ramp or a block of wood,
mark the retracted cylinder with a marker, elevate
platform above high speed cutout.
2. Back the unit off of the ramp, check the retracted
cylinder for drive no more than ½".
3. Repeat this procedure for the other side. If the lockout cylinders do not hold, repeat the bleeding procedure or check for the following:
a. Air in lockout system
b. Bad cylinder seals
c. Bad holding valves
4-10
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
Oscillating Axle Lockout Test (If Equipped)
LOCKOUT SYSTEM TEST MUST BE PERFORMED QUARTERLY,
ANY TIME A SYSTEM COMPONENT IS REPLACED, OR WHEN
IMPROPER SYSTEM OPERATION IS SUSPECTED.
NOTE: Ensure platform is fully lowered prior to beginning
lockout cylinder test.
1. Place a 6 inch (15.2 cm) high block with ascension
ramp in front of left front wheel.
2. From platform control station, select LOW drive
speed.
3. Place DRIVE control switch to FORWARD position
and carefully drive the machine up ascension ramp
until left front wheel is on top of block.
8. Place the 6 inch (15.2 cm) high block with ascension
ramp in front of right front wheel.
9. From platform control station, select LOW drive
speed.
10. Place DRIVE control switch to FORWARD position
and carefully drive the machine up ascension ramp
until right front wheel is on top of block.
11. Raise machine platform approximately 7 ft (2.1 m)
on the 3369LE or 9 ft (2.7 m) on the 4069LE.
12. Place DRIVE control switch to REVERSE position
and carefully drive the machine off the block and
ramp.
13. Have an assistant check to see that the right front
wheel remains locked in position off the ground.
4. Raise machine platform approximately 7 ft (2.1 m)
on the 3369LE or 9 ft (2.7 m) on the 4069LE.
14. Lower the machine platform; the lockout cylinder
should then release and allow wheel to rest on the
ground. It may be necessary to activate DRIVE to
release cylinders.
5. Place DRIVE control switch to REVERSE position
and carefully drive the machine off the block and
ramp.
15. If the lockout cylinders do not function properly,
have qualified personnel correct the malfunction
prior to any further operation.
6. Have an assistant check to see that the left front
wheel remains locked in position off the ground.
7. Lower the machine platform; the lockout cylinder
should then release and allow wheel to rest on the
ground. It may be necessary to activate DRIVE to
release cylinders.
3121122
– JLG Lift –
4-11
SECTION 4 - HYDRAULICS
4.14 CYLINDER ASSEMBLIES
18
1. Barrel Weldment
20
19
21
2. Rod Weldment
22
3
3. Garmax Bushings
23
24
4. Locknut
5. Piston
25
6. O-Ring
7. Wear Ring
1
8. Seal
4
17
9. Spacer
7
10. Head
8
5
11. Wear Ring
6
12. Back-Up Ring
9
12
13. O-Ring
13
14. O-Ring
11
14
15. Seal
10
16. Wiper
15
2
17. Check/Restrictor Valve
16
18. Manual Descent Cable
19. Jam Nut, 1/4" - 28F
20. Flatwasher, 1/4"
21. Bracket
22. Bolt, 5/16" - 18NC x 3/4"
23. Cotter Pin, 1/8" x 1 1/4"
24. Adapter
3
25. Solenoid Valve
Figure 4-11. Lift Cylinder - 3369LE & M3369
NOTE: Torque Locknut (4) to 1125 - 1375 ft lbs (1525.3 1864 Nm).
• Approximate cylinder dry weight = 220 lbs (99.8 kg)
• Operating Pressure = 2100 psi (145 bar)
4-12
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
1. Barrel Weldment
18
20
19
21
2. Rod Weldment
22
23
24
3. Garmax Bushings
26
LOWER LIFT
CYLINDER
3
4. Locnut
OR
5. Piston
25
UPPER LIFT
CYLINDER
6. O-Ring
7. Wear Ring
17
8. Seal
1
9. Spacer
4
10. Head
7
8
11. Wear Ring
5
12. Back-Up Ring
6
13. O-Ring
9
12
14. O-Ring
13
15. Seal
11
16. Wiper
14
10
17. Relief Valve
15
16
18. Manual Descent Cable
19. Flatwasher, 1/4"
2
20. Jam Nut, 1/4" - 28NF
21. Bracket
22. Bolt, 5/16" - 18NC x 3/4"
23. Cotter Pin, 1/8" x 1 1/4"
24. Adapter
25. Solenoid Valve (Lower Cylinder)
3
26. Solenoid Valve (Upper Cylinder)
Figure 4-12. Lift Cylinder - 4069LE & M4069
NOTE: Torque Locknut (4) to 1125 - 1375 ft lbs (1525.3 1864 Nm).
• Approximate cylinder dry weight = 224 lbs (101.6 kg)
• Operating Pressure = 2100 psi (145 bar)
3121122
– JLG Lift –
4-13
SECTION 4 - HYDRAULICS
8
20
19
10
1. Cylinder Barrel
11
9
2. Jack Pad
3. Special Screw, 1/2" - 13NC x 1 1/4
19
4. Cylinder Rod
12
5. Retaining Ring
11
13
6. Plate
15
7. End Cap
4
8. Locknut
21
9. Piston
14
10. Flatwasher, 1 1/4"
16
11. Wear Ring
17
12. Piston Seal
18
13. O-Ring
1
5
14. Head
15. Wear Ring
7
16. O-Ring
6
17. Polyseal
5
3
18. Wiper Seal
19. Plug
3
2
20. Counter Balance Valve (see note)
21. Check Valve (see note)
3
Figure 4-13. Leveling Jack Cylinder - USA Built Machines S/N 0200112735 to Present)
NOTE: Torque Locknut (8) to 400 ft lbs (542.3 Nm).
Torque Counter Balance Valve (20) and Check Valve
(21) to 30-35 ft. lb. (40-47 Nm).
When servicing, apply a light coat of grease to the
Jack Pad (2) before installing.
4-14
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
11
12
8
9
10
7
3
5
1. Cylinder Barrel
2
6
2. Jack Pad
3
3. Special Screw, 1/2" - 13NC x 1 1/4
4. Cylinder Rod
5. Retaining Ring
5
4
6. Plate
7. End Cap
3
8. Head
9. Hydrolock
13
10. Wiper Seal
14
16
11. O-Ring
17
12. Wear Ring
15
13. Locknut
18
17
14. Flatwasher, 1 1/4"
16
20
15. Piston
16. Guidelock
21
17. Polyseal
18. O-Ring
19. Plugs
19
20. Counter Balance Valve (see note)
21. Check Valve (see note)
1
Figure 4-14. Leveling Jack Cylinder - USA Built Machines S/N 0200104829 to S/N 0200112735 & All Belgium Built
Machines)
NOTE: Torque Locknut (8) to 400 ft lbs (542.3 Nm).
Torque Counter Balance Valve (20) and Check Valve
(21) to 30-35 ft. lb. (40-47 Nm).
.
When servicing, apply a light coat of grease to the
Jack Pad (2) before installing.
3121122
– JLG Lift –
4-15
SECTION 4 - HYDRAULICS
(1 - 3 not used)
9. Barrel
16. Retainer Ring
23. Polyseal
4. Trailer Ball
10. Plug
17. Locking Screw
24. Hydrolock
5. Bolt, 3/8" - 16NC Grade 8
11. (not used)
18. Wear Ring
25. Spacer Tube
6. Cap
12. Nut
19. Guidelock
7. Head
13. Jack Pad
20. O-Ring
26. Counter Balance Valve
(see note)
8. Rod
14. Piston
21. O-Ring
15. Plate
22. Wiper Seal
27. Check Valve (see note)
Figure 4-15. Leveling Jack Cylinder - USA Built Machines Prior to S/N 0200104829
NOTE: Torque Nut (12) to 400 ft lbs (542.3 Nm).
Torque Locking Screw (17) to 100 in lbs (11.3 Nm).
Torque Counter Balance Valve (26) and Check Valve
(27) to 30-35 ft. lb. (40-47 Nm).
4-16
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
1
1. Barrel
2. Rod
3. Guide
4. Locknut
5. Piston
6. Piston Seal
4
7. O-Ring
6
8. Back-Up Ring
5
9. Seal
7
8
10. Wiper
9
11. Retainer Ring
12. O-Ring
3
10
11
12
2
Figure 4-16. Steer Cylinder
3121122
– JLG Lift –
4-17
SECTION 4 - HYDRAULICS
21
22
1. Barrel Weldment
18
19
2. Washer Ring
21
3. Capscrews, 5/16" - 18NC x 1"
4. Cylinder Rod
5. Jam Nut, 3/4" - 16NF
11
20
12
1
6. Rollpin
10
7. Rod End
13
8. Composite Bearing
14
9. Head
15
10. Piston
9
11. Wear Ring
16
17
12. T-Seal
13. Wear Ring
14. O-Ring
15. Back-Up Ring
2
16. Rod Seal
3
17. Wiper Seal
OR
18. O-Ring Plug #6
4
19. O-Ring Plug #4
8
20. Bleeder Valve
4
21. Bushing
22. Thermal Relief Valve
6
5
7
Figure 4-17. Axle Lockout Cylinder
NOTE: Torque Capscrews (3) to 30 ft lbs (41 Nm). Torque
Thermal Relief Valve (22) to 20 - 25 ft lbs (27 - 34
Nm).
4-18
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
4.15 PRESSURE SETTING PROCEDURES
NOTE: On the back of the control valve is a flow control
valve. This valve is used to adjust the lift down
speed.
Main Relief at Pump
Table 4-4. Valve Component Torque Values
1. Install pressure gauge at port “MP” on control valve.
2. Remove the plug from the lift coil.
COMPONENT
3. Activate and bottom out Lift Up. Adjust Main Relief to
3000 psi (207 bar).
4. Replace the plug on the lift coil.
Lift Relief
1. With pressure gauge at “MP” port on control valve,
activate and bottom out Lift Up.
2. Adjust Lift Relief to 2500 psi (172 bar) on the M3369/
3369LE and 2800 psi (193 bar) on the M4069/
4069LE.
Steer Relief
1. With pressure gauge at “MP” port on control valve,
activate and bottom out Steer Left.
Ft lb
Nm
Main Relief
25
35
Lift Relief
25
35
Steer Relief
20
28
Pressure Switch
12
16.8
Brake
20
28
High Pressure Filter
50
70
Steer
20
28
Lift
25
35
Flow Control
25
35
Coil Nuts
7
9.8
2. Adjust Steer Relief to 2500 psi (172 bar).
3. Repeat step one activating Steer Right.
4. Shut down hydraulic system and remove pressure
gauge.
3121122
– JLG Lift –
4-19
SECTION 4 - HYDRAULICS
BRAKE
HIGH PRESSURE
FILTER
MP
PRESSURE
SWITCH
STEER
MAIN RELIEF
FLOW
CONTROL
STEER RELIEF
LIFT RELIEF
LIFT
Figure 4-18. Control Valve
4.16 DRIVE TORQUE HUB
the output shaft. The lip seal will be automatically
removed during this procedure.
Disassembly
NOTE: If bearing replacement is necessary, the bearing
cups can be removed with a slide hammer puller or
driven out with a punch.
1. Loosen all cover bolts and drain oil from unit.
2. Remove the cover bolts and lift off input cover.
Remove and discard o-ring from counterbore of
input cover.
3. Remove sun gear and thrust washer.
4. Lift out the carrier and thrust washer.
5. Remove input spacer.
6. Lift out internal gear and thrust washer.
7. While wearing eye protection, remove the retaining
ring from the output shaft and discard.
8. Remove thrust washer from the output shaft.
11. To remove the cluster gears from the carrier, drive
the roll pin into the planet shaft. The planet shaft
may now be tapped out of the carrier. After planet
shaft has been removed, the roll pin can be driven
out The cluster gear can now be removed from the
carrier). The tanged thrust washer will be removed
from the cluster gear.
12. The needle bearings and thrust spacer are now
removed from cluster gear.
NOTE: When rebuilding or repairing the unit, the retaining
ring, o-rings, and seal should always be replaced.
9. The output shaft may now be pressed out of the
housing.
10. The bearing cups will remain in hub as will the inner
bearing cone. The outer bearing cone will remain on
4-20
– JLG Lift –
3121122
SECTION 4 - HYDRAULICS
Assembly
8. Sun gear is installed, meshing with the teeth of the
large diameter cluster gear. The counterbore on the
sun gear locates on the shoulder of the input spacer.
This is to be a slip fit and should operate freely.
1. With the hub shaft sub-assembly resting on the shaft
install internal gear. The spline of the internal gear.
bore will mesh with the spline of the output shaft.
2. Thrust washer is installed on the face of the output
shaft. Sufficient grease or petroleum jelly should be
used to hold thrust washer in place.
3. Place o-ring into hub counterbore. Use petroleum
jelly to hold in place. Locate and mark the four
counter beamed holes in the face of the housing.
This is for identification later in the assembly.
4. Thrust spacer is installed into the bore of the output
shaft. This should be a slip fit and the thrust spacer
should rotate in this location.
5. Place carrier assembly on a flat surface with the gear
cluster up. Find the punch marked tooth on each
large gear and locate at 12 o’clock (straight up) from
each planet pin.
6. With shoulder side of ring gear facing down, place
ring gear over (into mesh with) cluster gear. Be sure
that punch marks remain in correct location during
installation. The side of the ring gear with an “X”
stamped on it should be up.
9. Thrust washer is installed onto the sun gear and
should locate on the gear teeth shoulder.
10. Thrust washer is installed into the counterbore of the
carrier.
11. Place o-ring into input cover counterbore. Use petroleum jelly to hold o-ring in place.
12. The input cover is now installed on this assembly.
Taking care to correctly align pipe plug hole with
those in the hub, usually 90° to one another, locate
the four counterbore holes in housing, marked in
step (3) and install four shoulder bolts. A tap with a
hammer may be necessary to align shoulder bolt
with hub counterbore.
13. Install bolts into remaining holes.
14. Pipe plugs are to be installed into input cover using
a lubricant seal.
15. Torque bolts to 23 - 27 ft lbs (31- 36 NM).
16. Fill unit one-half full with EP90 lubricant.
7. While holding ring gear and cluster gear in mesh,
place small side of cluster gear into mesh with the
internal gear and sun gear. On the ring gear, locate
the hole marked “X” over one of the marked counterbored holes in hub.
NOTE: If gears do not mesh easily or carrier assembly does
not rotate freely, then remove the carrier and ring
gear and check the cluster gear timing.
3121122
– JLG Lift –
4-21
SECTION 4 - HYDRAULICS
4.17 DRIVE ASSIST VALVE
2L
1R
T1
PR
T
PL
2R
MPR
1L
MPL
1L
MPL
2L
PL
2R
1R
PR MPR
T1 T
VALVE SCHEMATIC
Figure 4-19. Drive Assist Valve
4-22
– JLG Lift –
3121122
SECTION 5 - JLG CONTROL SYSTEM
SECTION 5. JLG CONTROL SYSTEM
5.1 HAND HELD ANALYZER
men u:
HELP:PRESS ENTER
Analyzer Display
Escape Key
Enter Key
To return home or access
previous menu
Stores and selects Top Level, Sub
Level, and item menus
Left & Right Arrow Keys
Up & Down Arrow Keys
Used to move between Top Level,
Sub Level, and item menus
Value Selector
Figure 5-1. Hand Held Analyzer
To Connect the Hand Held Analyzer:
1. Connect the four pin end of the cable supplied with
the analyzer, to the four position connector on the
PCB and connect the remaining end of the cable to
the analyzer.
2. Power up the Control System by turning the lower
key to the platform position and pulling both emergency stop buttons on.
NOTE: The cable has a four pin connector at each end of
the cable; the cable cannot be connected backwards.
3121122
– JLG Lift –
5-1
SECTION 5 - JLG CONTROL SYSTEM
Using the Analyzer:
With the machine power on and the analyzer connected
properly, the analyzer will display the following:
In platform mode:
HELP:
EVERYTHING OK,
In ground mode:
HELP:
GROUND MODE OK
If ENTER is pressed again, the display moves to the following display:
MENU:
HELP:PRESS ENTER
l og:
1:St ar t up( 2/ 1)
HELP:
PRESS ENTER
At this point, using the RIGHT and LEFT arrow keys, you
can move between the top level menu items. To select a
displayed menu item, press ENTER. To cancel a selected
menu item, press ESC; then you will be able to scroll
using the right and left arrow keys to select a different
menu item.
The top level menus are as follows:
HELP
DIAGNOSTICS
LOGGED HELP
1: STARTUP (2/1): (Or last recorded fault)
At this point, the analyzer will display the highest priority
active fault, if any are present. You may scroll through the
fault logs to view what the last 15 faults were. Use the right
and left arrow keys to scroll through the fault logs. The
active faults, are listed before the first POWER CYCLE. To
return to the top menu, press ESC two times.
When a top level menu is selected, a new set of menu
items may be offered; If for example you choose Personalities:
ACTIVATE TESTS
ACCESS LEVEL
DRIVE
PERSONALITIES
LIFT
MACHINE SETUP
STEER
CALIBRATION: (Access level 1 only)
JOYSTICK
If you press ENTER, at the HELP:PRESS ENTER display,
and a fault is present, the analyzer display will scroll the
fault across the screen. If more than one fault is present
only the highest priority fault will show. The other active
faults are viewable in Logged Help. If there was no fault
detected, the display will read:
5-2
Pressing ENTER with any of the above displayed menus,
will display additional sub-menus within the selected
menu. In some cases the next level is the parameter or
information to be changed. Refer to the flow chart for what
menus are available within the top level menus. You may
only view the personality settings for selected menus
– JLG Lift–
3121122
SECTION 5 - JLG CONTROL SYSTEM
while in access level 2. Remember, you may always cancel a selected menu item by pressing the ESC key.
Once the correct password is displayed, press ENTER.
The access level should display the following, if the password was entered correctly:
Changing the Access Level of the Hand Held
Analyzer:
When the analyzer is first connected, you will be in access
level 2 which enables you to only view most configuration
settings which cannot be changed until you enter a password to advance to a lower level. This ensures that a setting cannot be accidentally altered. To change the access
level, the correct password must be entered. To enter the
password, scroll to the ACCESS LEVEL menu. For example:
MENU:
ACCESS LEVEL 1
MENU:
ACCESS LEVEL 2
MENU:
ACCESS LEVEL 1
Repeat the above steps if the correct access level is not
displayed or you can not adjust the personality settings:
MENU:
ACCESS LEVEL 2
Press ENTER to select the ACCESS LEVEL menu.
Using the UP or DOWN arrow keys, enter the first digit of
the password, 3.
Then using the RIGHT arrow key, position the cursor to
the right one space to enter the second digit of the password.
Use the UP or DOWN arrow key to enter the second digit
of the password which is 3.
Repeat this process until you have entered all five digits of
the password which is 33271.
3121122
– JLG Lift –
5-3
SECTION 5 - JLG CONTROL SYSTEM
Adjusting Parameters Using the Hand Held
Analyzer
Once you have gained access to level 1, and a personality
item is selected, press the UP or DOWN arrow keys to
adjust its value, for example:
Machine Setup
When a machine digit item is selected, press the UP or
DOWN arrow keys to adjust its value, for example:
FAILURE TO MAKE THE PROPER SETTINGS FOR THE PARTICULAR MACHINE CAN RESULT IN IMPROPER OPERATION.
PERSONALITIES:
DRIVE ACCEL 1.0s
GROUND ALARM:
1=MOTION
PERSONALITIES:
DRIVE ACCEL 1.0s
There will be a minimum and maximum for the value to
ensure efficient operation. The Value will not increase if
the UP arrow is pressed when at the maximum value nor
will the value decrease if the DOWN arrow is pressed and
the value is at the minimum value for any particular personality. If the value does not change when pressing the
up and down arrows, check the access level to ensure
you are at access level 1.
GROUND ALARM:
1=DESCENT
The effect of the machine digit value is displayed along
with its value. The above display would be selected if the
machine was equipped with a ground alarm and you
wanted it to sound when driving. There are certain settings allowed to install optional features or select the
machine model.
When selecting the machine model to match the size of
the machine, the personality settings will return to default
settings.
5-4
– JLG Lift–
3121122
SECTION 5 - JLG CONTROL SYSTEM
NOTE: Refer to Table 5-3, Machine Model Adjustment, and
Table 5-4, Machine Configuration Programming
Information for the default settings.
5.2 PC BOARDS
PCB - JLG P/N 0610143
Password 33271 will give you access to level 1,
which will permit you to change all machine personality and/or machine setup settings.
CHANGING THESE SETTINGS MAY ADVERSELY AFFECT THE
PERFORMANCE OF YOUR MACHINE.
The flash code is indicated on the face of the platform
control box as shown:
SYSTEM
FAULT
PCB - JLG P/N 1001099428
NOTE: For machines with software prior to P1.0, flash
codes are also displayed on the handheld analyzer .
For descriptions see,Table 5-1, Flash Codes/DTC’s.
IT IS A GOOD PRACTICE TO AVOID PRESSURE-WASHING ELECTRICAL/ELECTRONIC COMPONENTS. SHOULD PRESSUREWASHING BE UTILIZED TO WASH AREAS CONTAINING ELECTRICAL/ELECTRONIC COMPONENTS, JLG INDUSTRIES, INC. RECOMMENDS A MAXIMUM PRESSURE OF 750 PSI (52 BAR) AT A
MINIMUM DISTANCE OF 12 INCHES (30.5 CM) AWAY FROM THESE
COMPONENTS. IF ELECTRICAL/ELECTRONIC COMPONENTS
ARE SPRAYED, SPRAYING MUST NOT BE DIRECT AND BE FOR
BRIEF TIME PERIODS TO AVOID HEAVY SATURATION.
3121122
Figure 5-2. PC Boards
NOTE: Figure 5-2., PC Boards, is shown for part distinguishing purposes. PC Board (p/n 1001099428) is used
on machines with Software P1.0 and higher. PC
Board (p/n 0610143) is used on machines prior to
Software P1.0. Visually reference the circuits and
chips circled in Figure 5-2. to determine which PC
Board is in the machine.
– JLG Lift –
5-5
SECTION 5 - JLG CONTROL SYSTEM
5.3 FLASH CODES/DTC’S AND DESCRIPTIONS
NOTE: Machines with software prior to P1.0 will display the
Flash Code on the JLG Analyzer as shown below.
The 2 digit Flash Code is scrolled at the end of the
Help Message. Refer to "Flash Code" column of
Table 5-1.
hel p:
n g chan ge ( 2/ 2) .
NOTE: Diagnostic Trouble Codes (DTC’s) will only show for
machines with software P1.0 and above. The 3 to 5
digit DTC will display in parenthesis on the JLG Analyzer in the upper right corner of the display screen
as shown below. Refer to Table 5-1 for DTC’s.
hel p:
( 001)
ever y t hi n g ok
FLASH
CODE
DTC
Table 5-1. Flash Codes/DTC’s
FLASH CODE
DTC
No Flash
Code
000
HELP COMMENT
001
EVERYTHING OK
The normal help message in Plaform Mode.
002
GROUND MODE OK
The normal help message in Ground Mode.
0022
DIFFERENT FUNCTION SELECTED & IGNORED
A function (i.e. Drive, Lift, etc.) is active and the operator has selected another function. The system has ignored the new selection.
0023
FUNCTION SELECTED BUT TRIGGER SWITCH OPEN
A function (i.e. Drive, Lift, etc.) has been selected by the operator, but the trigger switch is not active (closed).
0024
JOYSTICK MOVED BUT NO FUNCTION SELECTED
The joystick was moved out of the center position before a function was selected.
0025
ALARM SOUNDING - PLATFORM OVERLOADED
Load Sensing System indicates that the platform is overloaded. Applicable when Machine Setup’s Load is set to "1 = CUTOUT
PLT" and the vehicle is operating in Ground Mode.
003
ALARM SOUNDING - TILTED & ABOVE ELEVATION
Platform is elevated and the chassis is not level. Applicable when Machine Setup’s TILT CUTOUT is set to 0 = NO.
004
DRIVING AT CUTBACK - ABOVE ELEVATION
Platform is elevated and the machine is in the drive mode of operation.
005
DRIVE & LIFT UP PREVENTED - TILTED & ELEVATED
Machine is exceeding tilt allowance and platform is elevated above allowed height. Applicable when Machine Setup’s TILT
CUTOUT is set to 1 = YES.
009
DRIVE PREVENTED - ELEVATED ABOVE DRIVE CUTOUT HEIGHT
Machin is elevated above the drive cutout height. Not applicable when Machine Setup’s MODEL is set to 0 = 3369LE.
5-6
HELP MESSAGE AND DESCRIPTION
– JLG Lift–
3121122
SECTION 5 - JLG CONTROL SYSTEM
Table 5-1. Flash Codes/DTC’s
FLASH CODE
DTC
2-1
210
POWER UP
211
POWER CYCLE
A new system power up has occurred since the last help message.
212
KEYSWITCH FAULTY
Both Platform and Ground modes are selected simultaneously.
220
PLATFORM CONTROLS
221
FUNCTION PROBLEM - HORN PERMANENTLY SELECTED
Horn switch in platform control box closed at start up. Release switch to clear fault.
2210
TRIGGER CLOSED TOO LONG WHILE IN NEUTRAL
Trigger switch in the platform control box closed for more than ten seconds while the joystick is in the neutral position. Release
switch to clear fault.
2234
FUNCTION PROBLEM - DRIVE PERMANENTLY SELECTED
Drive select switch in the platform control box closed at start up or for more than ten seconds. Release switch to clear fault.
2235
FUNCTION PROBLEM - LIFT PERMANENTLY SELECTED
Lift select switch in the platform control box closed at start up or for more than ten seconds. Release switch to clear fault.
2236
FUNCTION PROBLEM - O/R PERMANENTLY SELECTED
An outrigger select switch in the platform control box closed at start up or for more than ten seconds. Release switch to clear
fault.
2237
JOYSTICK FAULTY - STEER SWITCHES ACTIVE TOGETHER
Both the steer left and steer right inputs are closed at the same time. A short in the steer switch wiring or a failed steer switch can
cause this.
2238
FUNCTIONS LOCKED OUT - SHORT TO PLATFORM ROW INPUT
A short circuit to IGN has been detected in the platform cable wiring.
2239
FUNCTION PROBLEM - JOYSTICK CALIBRATION FAULTY
The Personalities for theJoystick are improperly adjusted or a joystick calibration attempt failed. Re-adjust or recalibrate.
224
FUNCTION PROBLEM - STEER LEFT PERMANENTLY SELECTED
Steer left switch in the platform control box closed at start up. Release switch to clear fault.
225
FUNCTION PROBLEM - STEER RIGHT PERMANENTLY SELECTED
Steer right switch in the platform control box closed at start up. Release switch to clear fault.
226
ACCELERATOR (or JOYSTICK) FAULTY - WIPER OUT OF RANGE
The joystick wiper signal input is outside the acceptable voltage range. The wiper wire being off, the wiper wire shorted to battery
power, or the wiper wire shorted to battery negative could cause this.
228
FUNCTION LOCKED OUT - JOYSTICK NOT CENTERED
Selected function is not allowed because the joystick is not centered. Return joystick to center and reselect function.
229
FUNCTION PROBLEM - TRIGGER PERMANENTLY CLOSED
Trigger switch in the platform control box closed at start up. Release switch to clear fault.
N/A
ELEV ANGLE SENSOR NOT DETECTING CHANGE
Platform elevated for 5 sec. and elevation voltage change not detected. Faulty sensor, wire harness, or ground module. Return
platform to stowed position to clear. Reset model or recalibrate elev angle sensor.
N/A
TRIGGER CLOSED TOO LONG WHILE IN NEUTRAL
Trigger switch in the platform control box closed for more than ten seconds while the joystick is in the neutral position. Release
switch to clear fault.
230
GROUND CONTROLS
231
FUNCTION PROBLEM - LIFT PERMANENTLY SELECTED
Lift switch (up or down) in the ground control box closed at start up. Release switch to clear fault.
N/A
NO DATA FROM TILT SENSOR - NOT CONNECTED OR FAULTY
No signal from the tilt switch. Check wiring and plug connections at the level sensor and at the ground control board.
2-2
2-3
3121122
HELP MESSAGE AND DESCRIPTION
– JLG Lift –
5-7
SECTION 5 - JLG CONTROL SYSTEM
Table 5-1. Flash Codes/DTC’s
FLASH CODE
DTC
2-5
250
FUNCTION PREVENTED
251
ELEV ANGLE SESOR FAULTY - VOLTAGE OUT OF RANGE
The sensor signal input voltage is outside acceptable range. This could be a short to IGN, short to B+, short to ground, or sensor
not properly mounted.
2512
ELEV ANGLE SENSOR NOT DETECTING CHANGE
Platform elevated for 5 sec. and elevation voltage change not detected. Fault sensor, wire harness, or ground module. Return
platform to stowed position to clear. Reset Model or recalibrate elev angle sensor
252
ELEV ANGLE SENSOR HAS NOT BEEN CALIBRATED
Calibrate elevation rotary sensor using calibration procedure.
2535
SHORT DETECTED ON IGNITION WIRING - CHECK HARNESS
A short to ground has been detected on one of the following: J2-21, J2-22, J2-23, J2-27, J2-28, J3-7, J3-10, J5-5
2536
ALL FUNCTIONS PREVENTED - FUNCTION CUTOUT ACTIVE
Machine Setup’s FUNCTION CUTOUT is set for "2 = ALL FUNCTIONS" and Ground Module J2-11 is de-energized by an external safety device.
2537
DRIVE & LIFT UP PREVENTED - FUNCTION CUTOUT ACTIVE
Machine Setup’s FUNCTION CUTOUT is set for "1 = DRV & LFT UP" and Ground Module J2-11 is de-energized by an external
safety device.
2538
FUNCTION PREVENTED - CHARGER CONNECTED
Disconnect AC line from charger to clear fault.
255
PLATFORM OVERLOADED
Machine Setup’s LOAD is set to "1 = CUTOUT PLT" or "2 = CUTOUT ALL" and the Load Sensing System indicates that the platform is overloaded.
257
ELEV PROX PERMANENTLY CLOSED - CHECK PROX AND ANGLE ADJUSTMENT
Elevation proximity sensor closed. This could be due to a misadjustment of the prox or angle mount sensor or metal debris on
the prox.
N/A
ELEV PROX PERMANENTLY OPEN - CHECK PROX AND ANGLE ADJUSTMENT
310
LINE CONTACTOR OPEN CIRCUIT
311
OPEN CIRCUIT LINE CONTACTOR
Line contactor did not close.
313
OPEN CIRCUIT PUMP CONTACTOR
Pump contactor did not close.
320
LINE CONTACTOR SHORT CIRCUIT
321
LINE CONTACTOR MISWIRED ON OR WELDED
The line contactor is permanently closed or the coil is wired improperly.
323
PUMP CONTACTOR MISWIRED ON OR WELDED
The pump contactor is permanently closed or the auxiliary contacts are wired improperly.
330
GROUND OUTPUT DRIVER
3-1
3-2
3-3
33330
4-2
5-8
HELP MESSAGE AND DESCRIPTION
SHORT CIRCUIT LINE/PUMP CONTACTOR COIL
The line or pump contactor coils are shorted to ground or mis-wired.
420
THERMAL LIMIT
421
POWER MODULE TOO HOT - PLEASE WAIT
The power module over the rear axle is too hot. Allow to cool by powering down.
425
POWER CONVERTER TOO HOT - PLEASE WAIT
Switching power supply in ground control box too hot. Allow to cool by powering down to clear fault.
– JLG Lift–
3121122
SECTION 5 - JLG CONTROL SYSTEM
Table 5-1. Flash Codes/DTC’s
FLASH CODE
DTC
4-4
440
BATTERY SUPPLY
441
BATTERY VOLTAGE TOO LOW - SYSTEM SHUTDOWN
Recharge batteries or check for damaged batteries.
442
BATTERY VOLTAGE TOO HIGH - SYSTEM SHUTDOWN
Disconnect battery charger. Check that the correct voltage batteries are being used.
N/A
BATTERY CHARGE TOO LOW - SYSTEM SHUTDOWN
660
COMMUNICATION
661
CANBUS FAILURE: POWER MODULE
Lost communication to power module. Check wiring at ground control and power module. Recycle power to clear fault.
770
ELECTRIC MOTOR
773
CAPACITOR BANK FAULT - CHECK POWER CIRCUITS
Check power wiring. If no error in power wiring, replace power controller.
775
OPEN CIRCUIT FIELD (or TRACTION) WIRING
Open circuit between F1 and F2 terminals on power module and the drive motors. Check wiring.
810
TILT SENSOR
812
NO DATA FROM TILT SENSOR - NOT CONNECTED OR FAULTY
No signal from the tilt switch. Check wiring and plug connections at the level sensor and at the ground control box.
990
HARDWARE
995
POWER MODULE FAILURE - PERSONALITY RANGE ERROR
Toggle MODEL then re-configure Machine Setup and Personalities. If this does not resolve issue, replace power controller.
996
POWER MODULE FAILURE - INTERNAL ERROR
Toggle MODEL then re-configure Machine Setup and Personalities. If this does not resolve issue, replace power controller.
997
POWER MODULE FAILURE - CHECK POWER CIRCUITS OR MOSFET SHORT CIRCUIT
Check power wiring. If no error in power wiring module, replace power controller.
9980
POWER MODULE FAILURE - PERSONALITY CRC ERROR
Toggle MODEL then re-configure Machine Setup and Personalities. If this does not resolve issue, replace power controller.
N/A
POWER MODULE FAILURE - CAPACITOR BANK FAULT
Replace power module.
6-6
7-7
8-1
9-9
3121122
HELP MESSAGE AND DESCRIPTION
– JLG Lift –
5-9
SECTION 5 - JLG CONTROL SYSTEM
Table 5-2. Power Module Diagnostic LED Flash Codes
5-10
Flash Code
Fault
Constant Illumination
No Fault, Normal Condition
LED Extinguished
Internal Controller Fault
1 Flash
Personality Out of Range
2 Flashes
Illegal Start Condition or Illegal Steer Switch Input
3 Flashes
MOSFET Short Circuit
4 Flashes
Contactor Fault or Motor Open Circuit
5 Flashes
Not Used
6 Flashes
Accelerator, Steer Pot or Speed Probe Wire Default
7 Flashes
Low or High Battery Voltage or BDI Cut-Out Operating
8 Flashes
Over Temperature
9 Flashes
Contactor Coil Short Circuit
12 Flashes
CAN Bus Fault
– JLG Lift–
3121122
3121122
– JLG Lift –
*(Outrigger Option Only)
Figure 5-2. Analyzer Flow Chart - SW V13.X - Sheet 1 of 3
- Top Level Menu
- Item to be Viewed
or Changed
- Sub Level Menu
NOTE: IN ORDER TO RUN “SYSTEM TEST”, THE OPERATOR MUST ENTER PASSWORD 33271
**(Test in Ground Mode)
***(Test in Platform Mode)
(Press Escape Twice to Return to Help)
SECTION 5 - JLG CONTROL SYSTEM
5-11
BY PRESSING THESE ARROW KEYS (
5-12
– JLG Lift–
Figure 5-3. Analyzer Flow Chart - SW V13.X - Sheet 2 of 3
) YOU CAN SCROLL THROUGH THE TOP LEVEL MENUS.
- Item to be Viewed
or Changed
- Sub Level Menu
- Top Level Menu
SECTION 5 - JLG CONTROL SYSTEM
3121122
3121122
– JLG Lift –
- Item to be Viewed
or Changed
- Sub Level Menu
- Top Level Menu
) YOU CAN SCROLL THROUGH THE TOP LEVEL MENUS.
Figure 5-4. Analyzer Flow Chart - SW V13.X - Sheet 3 of 3
BY PRESSING THESE ARROW KEYS (
SECTION 5 - JLG CONTROL SYSTEM
5-13
5-14
– JLG Lift–
*(Outrigger Option Only)
Figure 5-5. Analyzer Flow Chart - Software P1.X - Sheet 1 of 3
- Top Level Menu
- Item to be Viewed
or Changed
- Sub Level Menu
NOTE: IN ORDER TO RUN “SYSTEM TEST”, THE OPERATOR MUST ENTER PASSWORD 33271
**(Test in Ground Mode)
***(Test in Platform Mode)
(Press Escape Twice to Return to Help)
SECTION 5 - JLG CONTROL SYSTEM
3121122
3121122
– JLG Lift –
) YOU CAN SCROLL THROUGH THE TOP LEVEL MENUS.
Figure 5-6. Analyzer Flow Chart - Software P1.X - Sheet 2 of 3
BY PRESSING THESE ARROW KEYS (
- Item to be Viewed
or Changed
- Sub Level Menu
- Top Level Menu
SECTION 5 - JLG CONTROL SYSTEM
5-15
5-16
– JLG Lift–
- Item to be Viewed
or Changed
- Sub Level Menu
- Top Level Menu
) YOU CAN SCROLL THROUGH THE TOP LEVEL MENUS.
Figure 5-7. Analyzer Flow Chart - Software P1.X - Sheet 3 of 3
*(CE Market Only)
**(All Markets Except Japan)
***(All Markets Except ANSI USA and CSA)
****(3369LE Model for CE Market Only)
BY PRESSING THESE ARROW KEYS (
SECTION 5 - JLG CONTROL SYSTEM
3121122
SECTION 5 - JLG CONTROL SYSTEM
Table 5-3. Machine Model Adjustment
Adjustment
Adjustment Range
Default Values - 3369LE
Default Values - 4069LE
ACCEL
1.0 - 5.0 (sec)
3.5
3.5
0.1
DRIVE
DECEL
0.1 - 5.0 s(sec)
0.1
MINIMUM
1 - 6%
4
4
MAXIMUM
30 - 100%
100
100
ELEVATED
1 - 15%
10
10
LOW MAX
35 - 65%
50
50
BRAKE FLOW
15 - 100%
75
75
OSC AXLE
15 - 100%
50
50
OSC AXLE
0.1 - 5.0 (sec)
1.0
1.0
4WA MAX
35 - 65%
40
40
ACCEL
1.0 - 5.0 (sec)
2.0
2.0.
DECEL
0.1 - 5.0 (sec)
0.1
0.1
4 WHEEL ASSIST*
MIN 4WA
0 - 25%
16
16
MAX 4WA
25 - 100%
75
75
ACCELERATOR THRESH
0 - 100%
75
75
DRIVE SPEED
0 -1.5 MPH
0.5
0.5
ACCEL
0.2 - 5.0 (sec)
2.0
2.0
0.5
LIFT
DECEL
0.2 - 5.0 (sec)
0.5
MIN UP
0 - 25%
16
16
MAX UP
25 - 100%
65
65
LOW MAX
35 - 65%
35
35
STATC LEFT
15 - 100%
31
31
STATIC RIGHT
15 - 100%
37
37
DRIVE LEFT
15 - 100%
23
23
DRIVE RIGHT
15 - 100%
25
25
FWD MAX
0 - 5.0 V
0.65
0.65
FWD MIN
0 - 5.0 V
2.25
2.25
REV MIN
0 - 5.0 V
2.80
2.80
REV MAX
0 - 5.0 V
4.45
4.45
STEER
JOYSTICK
4150351_E
NOTE: These settings may change in order to achieve optimal performance on a machine by machine basis.
* The 4 Wheel Assist Menu will not be available if the option is not configured.
3121122
– JLG Lift –
5-17
SECTION 5 - JLG CONTROL SYSTEM
NOTE: When configuring an LE scissors machine, the machine configuration must be completed before any personality settings can be changed. Changing the personality settings first and then changing the model number of the machine configuration will cause the personality settings to return to default.
Table 5-4. Machine Configuration Programming Information
Default Number
Configuration Digit
Number
Description
0
1
2
1
(MODEL #)
0
1
3369LE
4069LE
0
2
(MARKET)
0
1
2
3
4
5
ANSI USA
ANSI EXPORT
CSA
CE
AUSTRALIA
JAPAN
0
3
(TILT CUTOUT)
0
1
NO - Drive & Lift Up not prevented when Tilted & Elevated
YES - Drive & Lift Up prevented when Tilted & Elevated.
4
(LEVELING JACKS)
0
1
NO - Leveling Jacks are not installed.
YES - Leveling Jacks are installed.
0
0
1
DRIVE - Drive is prevented when the vehicle is being charged.
DRIVE & LIFT - Drive & Lift Up are prevented when the vehicle is being
charged.
0
6
(GROUND ALARM)
0
1
2
NOT INSTALLED - The Ground Alarm shall not sound
DESCENT - The Ground Alarm shall sound during Lift Down
MOTION - The Ground Alarm shall sound during any vehicle motion.
7
(FUNCTION CUTOUT)
0
1
2
NONE
DRV & LFT UP - Only allows Lift Down when Function Cutout is active.
ALL FUNCTIONS - All functions are prevented when Function Cutout is
active
0
8
(4 WHEEL ASSIST)
0
1
NO - The 4 Wheel Assist option is not installed.
YES - The 4 Wheel Assist option is installed.
0
0
1
NOT INSTALLED - Load Sensing System (LSS) is not fitted to the vehicle.
CUTOUT PLT - LSS is fitted, and Platform Controls are prevented in the
event of an Overload. Ground Controls remain functional. This is the
default setting for CE machines.
CUTOUT ALL - LSS is fitted. Platform and Ground Controls are
prevented in the event of an Overload
5
(CHARGER INTRLOK)
9
(LOAD)
2
0
1
10
(TILT LIMIT)*
1
1
1
1
1
1
3
4
5
0
1
1
1
1
2
0
1
0
1
0
1
0
0
0
0
0
0
STANDARD - Normal tilt limits.
SPECIAL 1 - Vehicle tilt limits restricted to allow operation of a standard
3369LE in 16.7 m/s wind speeds for the CE Market.
NOTE: Tilt Limit selection is only visible for the 3369LE configured for the CE Market. The selection will default
to STANDARD otherwise.
4150352_G
5-18
– JLG Lift–
3121122
SECTION 5 - JLG CONTROL SYSTEM
5.4 GROUND CONTROL CIRCUIT BOARD
Software Version 13.6
Table 5-5. J1 Connector
3121122
PIN
TAGNAME
FUNCTION
1
PLTS
Platform Select
POWER
OUTPUT
2
PLTE
Platform EMS
POWER
INPUT
3
GND
Ground
POWER
OUTPUT
4
COL0
Column 0 Output
DIGITAL
OUTPUT
5
COL1
Column 1 Output
DIGITAL
OUTPUT
6
COL2
Column 2 Output
DIGITAL
OUTPUT
7
PCTL
Joystick Input (0 - 5VDC)
ANALOG
INPUT
8
ROW0
Row 0 Input
DIGITAL
INPUT
9
ROW1
Row 1 Input
DIGITAL
INPUT
10
COL3
Column 3 Output
DIGITAL
OUTPUT
11
COL4
Column 4 Output
DIGITAL
OUTPUT
12
COL5
Column 5 Output
DIGITAL
OUTPUT
13
ROW2
Row 2 Input
DIGITAL
INPUT
14
LCLK
LED Latch Clock Output
DIGITAL
OUTPUT
15
ALRM
Platform Alarm
DIGITAL
OUTPUT
16
IGN
Ignition Power (+12V; 750mA Limit)
POWER
OUTPUT
17
GALR
Ground Alarm
DIGITAL
OUTPUT
18
DO9
Spare High-Side Digital Output 9 (12V, 5A)
DIGITAL
OUTPUT
19
QPRX
Trigger Switch
POWER
INPUT
20
GNDE
Ground EMS (from J5-2; 500mA Limit)
POWER
OUTPUT
21
GINH
Generator Inhibit Start Switch
POWER
I/O
22
GND
Ground
POWER
OUTPUT
23
GND
Ground
POWER
OUTPUT
24
GND
Ground
POWER
OUTPUT
– JLG Lift –
TYPE
5-19
SECTION 5 - JLG CONTROL SYSTEM
Table 5-6. J2 Connector
5-20
PIN
TAGNAME
FUNCTION
1
B+
Control System Supply (+48V)
POWER
INPUT
2
GND
Control System Ground
POWER
INPUT
3
LTS
Steer Left Solenoid Valve
DIGITAL
OUTPUT
4
RTS
Steer Right Solenoid Valve
DIGITAL
OUTPUT
5
DPS
Flow Control Solenoid Valve
FWM
OUTPUT
6
BRS
Brake Solenoid Valve
DIGITAL
OUTPUT
7
UPS
Lift Up Solenoid Valve
DIGITAL
OUTPUT
8
DDNS
Lift Down Solenoid Valve
FWM
OUTPUT
9
HORN
Horn Relay (+48V)
DIGITAL
OUTPUT
10
GND
Ground
POWER
OUTPUT
11
FCU
Load Sensing System / Function Cutout Input
DIGITAL
INPUT
12
BPS
Brake Pressure Switch
DIGITAL
INPUT
13
ELPX
Elevation Prox Switch
DIGITAL
INPUT
14
APWR
+5V Analog Excitation for Elevation Angle Sensor
POWER
OUTPUT
15
ANGL
Elevation Angle Sensor Analog Input (0 -5VDC)
ANALOG
INPUT
16
12V
12V Sensor Supply
POWER
OUTPUT
17
SPD
4 Wheel Assist Speed Sensor Analog Input (FRBQ)
ANALOG
INPUT
18
CANH
CANbus High
SERIAL
I/O
19
CANL
CANbus Low
SERIAL
I/O
20
CANS
CANbus Shield (Ground)
POWER
OUTPUT
21
IGN
Ignition Power (+12V)
POWER
OUTPUT
22
IGN
Ignition Power (+12V)
POWER
OUTPUT
23
IGN
Ignition Power (+12V)
POWER
OUTPUT
24
GND
Ground
POWER
OUTPUT
25
GND
Ground
POWER
OUTPUT
26
PWRON
Power On (GNDS or PLTE Powered; 1.8A Limit)
POWER
OUTPUT
27
IGN
Ignition Power (+12V)
POWER
OUTPUT
28
IGN
Ignition Power (+12V)
POWER
OUTPUT
29
GND
Ground
POWER
OUTPUT
30
GND
Ground
POWER
OUTPUT
31
CHGI
Charger Interlock Input
DIGITAL
INPUT
32
DI9
Spare High-Sensing Digital Input 9
DIGITAL
INPUT
33
DI10
Spare High-Sensing Digital Input 10
DIGITAL
INPUT
34
DI11
Spare High-Sensing Digital Input 11
DIGITAL
INPUT
35
DO17
Spare High-Sensing Digital Output 17 (12V, 5A)
DIGITAL
OUTPUT
36
DO18
Spare High-Sensing Digital Output 18 (12V, 5A)
DIGITAL
OUTPUT
– JLG Lift–
TYPE
3121122
SECTION 5 - JLG CONTROL SYSTEM
Table 5-6. J2 Connector
PIN
TAGNAME
FUNCTION
TYPE
37
4WAF
4 Wheel Assist Forward Solenoid Valve
DIGITAL
OUTPUT
38
4AWR
4 Wheel Assist Reverse Solenoid Valve
DIGITAL
OUTPUT
39
OSAX
Oscillating Axle Solenoid Valves
DIGITAL
OUTPUT
40
DO22
Spare High-Side Digital Otput 22 (12V, 5A)
DIGITAL
OUTPUT
Table 5-7. J3 Connector
3121122
PIN
TAGNAME
FUNCTION
1
DO23
High-Side Digital Output 23 (12V, 5A)
DIGITAL
OUTPUT
2
DO24
High-Side Digital Output 24 (12V, 5A)
DIGITAL
OUTPUT
3
DO25
High-Side Digital Output 25 (12V, 5A)
DIGITAL
OUTPUT
4
DO26
High-Side Digital Output 26 (12V, 5A)
DIGITAL
OUTPUT
5
DI12
High-Sensing Digital Input 12
DIGITAL
INPUT
6
DI13
High-Sensing Digital Input 13
DIGITAL
INPUT
7
IGN
Ignition Power (+12V)
POWER
OUTPUT
8
ORSTO
Outrigger Set Input
DIGITAL
INPUT
9
ORSET
Outrigger Stow Input
DIGITAL
INPUT
10
IGN
Ignition Power (+12V)
POWER
OUTPUT
11
FLU
Front-Left O/R Up Solenoid Valve
DIGITAL
OUTPUT
12
FLD
Front-Left O/R Down Solenoid Valve
DIGITAL
OUTPUT
13
FRU
Front-Right O/R Up Solenoid Valve
DIGITAL
OUTPUT
14
FRD
Front-Right O/R Down Solenoid Valve
DIGITAL
OUTPUT
15
RLU
Rear-Left O/R Up Solenoid Valve
DIGITAL
OUTPUT
16
RLD
Rear-Left O/R Down Solenoid Valve
DIGITAL
OUTPUT
17
RRU
Rear-Right O/R Up Solenoid Valve
DIGITAL
OUTPUT
18
RRD
Front-Right O/R Down Solenoid Valve
DIGITAL
OUTPUT
19
GMST
Generator Manual Start (to J5-13)
POWER
I/O
20
GINH
Generator Inhibit Start (to J1-21)
POWER
I/O
21
GFLT
Generator Fault LED (to J5-14)
POWER
I/O
22
GNDE
Ground EMS (from J5-2; 500mA Limit)
POWER
OUTPUT
23
GND
Ground
POWER
OUTPUT
24
GND
Ground
POWER
OUTPUT
– JLG Lift –
TYPE
5-21
SECTION 5 - JLG CONTROL SYSTEM
Table 5-8. J4 Connector
PIN
TAGNAME
FUNCTION
TYPE
1
12V
12V Sensor Supply
POWER
OUTPUT
2
TILTX
X-Axis Tilt Input (PWM)
ANALOG
INPUT
3
TILTY
Y-Axis Tilt Input (PWM)
ANALOG
INPUT
4
GND
Ground
POWER
OUTPUT
Table 5-9. J5 Connector
PIN
TAGNAME
1
B+
2
FUNCTION
TYPE
Master Supply Connection (from J2-1)
POWER
OUTPUT
GNDE
Ground EMS (to J1-20, J3-22)
POWER
INPUT
3
PLTS
Platform Select Input (to J1-1)
POWER
INPUT
4
GNDS
Ground Select Input
POWER
INPUT
5
IGN
Ignition Power (+12V)
POWER
OUTPUT
6
GND
Ground
POWER
OUTPUT
7
UPG
Ground Lift Up Switch
DIGITAL
INPUT
8
DNG
Ground Lift Down Switch
DIGITAL
INPUT
9
FDH
Full Drive Height Input
DIGITAL
INPUT
10
DI19
High-Sensing Digital Input 19
DIGITAL
INPUT
11
DI20
High-Sensing Digital Input 20
DIGITAL
INPUT
12
DI21
High-Sensing Digital Input 21
DIGITAL
INPUT
13
GMST
Generator Manual Start (to J3-19)
POWER
I/O
14
GFLT
Generator Fault LED (to J3-21)
POWER
I/O
15
HRMT
Hourmeter
DIGITAL
OUTPUT
Table 5-10. J6 Connector
5-22
PIN
TAGNAME
FUNCTION
TYPE
1
12V
Ignition Power (+12V)
2
RX
RS-232 Serial Receive
SERIAL
INPUT
3
TX
RS-232 Serial Transmit
SERIAL
OUTPUT
4
GND
Ground
POWER
OUTPUT
POWER
– JLG Lift–
OUTPUT
3121122
SECTION 5 - JLG CONTROL SYSTEM
Software Version P1.0
Table 5-11. J1 Connector
3121122
PIN
TAGNAME
FUNCTION
1
PLTS
Platform Select
POWER
OUTPUT
2
PLTE
Platform EMS
POWER
INPUT
3
GND
Ground
POWER
OUTPUT
4
COL0
Column 0 Output
DIGITAL
OUTPUT
5
COL1
Column 1 Output
DIGITAL
OUTPUT
6
COL2
Column 2 Output
DIGITAL
OUTPUT
7
PCTL
Joystick Input (0 - 5VDC)
ANALOG
INPUT
8
ROW0
Row 0 Input
DIGITAL
INPUT
9
ROW1
Row 1 Input
DIGITAL
INPUT
10
COL3
Column 3 Output
DIGITAL
OUTPUT
11
COL4
Column 4 Output
DIGITAL
OUTPUT
12
COL5
Column 5 Output
DIGITAL
OUTPUT
13
ROW2
Row 2 Input
DIGITAL
INPUT
14
LCLK
LED Latch Clock Output
DIGITAL
OUTPUT
15
ALRM
Platform Alarm
DIGITAL
OUTPUT
16
IGN
Ignition Power (+12V; 750mA Limit)
POWER
OUTPUT
17
GALR
Ground Alarm
DIGITAL
OUTPUT
18
DO9
Spare High-Side Digital Output 9 (12V, 5A)
DIGITAL
OUTPUT
19
QPRX
Trigger Switch
POWER
INPUT
20
GNDE
Ground EMS (from J5-2; 500mA Limit)
POWER
OUTPUT
21
GINH
Generator Inhibit Start Switch
POWER
I/O
22
CANH1
CANBUS High CH1
SERIAL
I/0
23
GND
Ground
POWER
OUTPUT
24
CANL1
CANBUS High CH1
SERIAL
I/0
– JLG Lift –
TYPE
5-23
SECTION 5 - JLG CONTROL SYSTEM
Table 5-12. J2 Connector
5-24
PIN
TAGNAME
FUNCTION
1
B+
Control System Supply (+48V)
POWER
INPUT
2
GND
Control System Ground
POWER
INPUT
3
LTS
Steer Left Solenoid Valve
DIGITAL
OUTPUT
4
RTS
Steer Right Solenoid Valve
DIGITAL
OUTPUT
5
DPS
Flow Control Solenoid Valve
FWM
OUTPUT
6
BRS
Brake Solenoid Valve
DIGITAL
OUTPUT
7
UPS
Lift Up Solenoid Valve
DIGITAL
OUTPUT
8
DDNS
Lift Down Solenoid Valve
FWM
OUTPUT
9
HORN
Horn Relay (+48V)
DIGITAL
OUTPUT
10
GND
Ground
POWER
OUTPUT
11
FCU
Load Sensing System / Function Cutout Input
DIGITAL
INPUT
12
BPS
Brake Pressure Switch
DIGITAL
INPUT
13
ELPX
Elevation Prox Switch
DIGITAL
INPUT
14
APWR
+5V Analog Excitation for Elevation Angle Sensor
POWER
OUTPUT
15
ANGL
Elevation Angle Sensor Analog Input (0 -5VDC)
ANALOG
INPUT
16
12V
12V Sensor Supply
POWER
OUTPUT
17
SPD
4 Wheel Assist Speed Sensor Analog Input (FRBQ)
ANALOG
INPUT
18
CANH
CANbus High to Power Module
SERIAL
I/O
19
CANL
CANbus Low to Power Module
SERIAL
I/O
20
CANS
CANbus Shield (Ground)
POWER
OUTPUT
21
IGN
Ignition Power (+12V)
POWER
OUTPUT
22
IGN
Ignition Power (+12V)
POWER
OUTPUT
23
IGN
Ignition Power (+12V)
POWER
OUTPUT
24
GND
Ground
POWER
OUTPUT
25
GND
Ground
POWER
OUTPUT
26
PWRON
Power On (GNDS or PLTE Powered; 1.8A Limit)
POWER
OUTPUT
27
IGN
Ignition Power (+12V)
POWER
OUTPUT
28
IGN
Ignition Power (+12V)
POWER
OUTPUT
29
GND
Ground
POWER
OUTPUT
30
GND
Ground
POWER
OUTPUT
31
CHGI
Charger Interlock Input
DIGITAL
INPUT
32
DI9
Spare High-Sensing Digital Input 9
DIGITAL
INPUT
33
DI10
Spare High-Sensing Digital Input 10
DIGITAL
INPUT
34
DI11
Spare High-Sensing Digital Input 11
DIGITAL
INPUT
35
DO17
Spare High-Sensing Digital Output 17 (12V, 5A)
DIGITAL
OUTPUT
36
DO18
Spare High-Sensing Digital Output 18 (12V, 5A)
DIGITAL
OUTPUT
37
4WAF
4 Wheel Assist Forward Solenoid Valve
DIGITAL
OUTPUT
– JLG Lift–
TYPE
3121122
SECTION 5 - JLG CONTROL SYSTEM
Table 5-12. J2 Connector
PIN
TAGNAME
FUNCTION
TYPE
38
4AWR
4 Wheel Assist Reverse Solenoid Valve
DIGITAL
OUTPUT
39
OSAX
Oscillating Axle Solenoid Valves
DIGITAL
OUTPUT
40
DO22
Spare High-Side Digital Otput 22 (12V, 5A)
DIGITAL
OUTPUT
Table 5-13. J3 Connector
3121122
PIN
TAGNAME
FUNCTION
1
DO23
High-Side Digital Output 23 (12V, 5A)
DIGITAL
OUTPUT
2
DO24
High-Side Digital Output 24 (12V, 5A)
DIGITAL
OUTPUT
3
DO25
High-Side Digital Output 25 (12V, 5A)
DIGITAL
OUTPUT
4
DO26
High-Side Digital Output 26 (12V, 5A)
DIGITAL
OUTPUT
5
DI12
High-Sensing Digital Input 12
DIGITAL
INPUT
6
DI13
High-Sensing Digital Input 13
DIGITAL
INPUT
7
IGN
Ignition Power (+12V)
POWER
OUTPUT
8
ORSTO
Outrigger Set Input
DIGITAL
INPUT
9
ORSET
Outrigger Stow Input
DIGITAL
INPUT
10
IGN
Ignition Power (+12V)
POWER
OUTPUT
11
FLU
Front-Left O/R Up Solenoid Valve
DIGITAL
OUTPUT
12
FLD
Front-Left O/R Down Solenoid Valve
DIGITAL
OUTPUT
13
FRU
Front-Right O/R Up Solenoid Valve
DIGITAL
OUTPUT
14
FRD
Front-Right O/R Down Solenoid Valve
DIGITAL
OUTPUT
15
RLU
Rear-Left O/R Up Solenoid Valve
DIGITAL
OUTPUT
16
RLD
Rear-Left O/R Down Solenoid Valve
DIGITAL
OUTPUT
17
RRU
Rear-Right O/R Up Solenoid Valve
DIGITAL
OUTPUT
18
RRD
Front-Right O/R Down Solenoid Valve
DIGITAL
OUTPUT
19
GMST
Generator Manual Start (to J5-13)
POWER
I/O
20
GINH
Generator Inhibit Start (to J1-21)
POWER
I/O
21
GFLT
Generator Fault LED (to J5-14)
POWER
I/O
22
GNDE
Ground EMS (from J5-2; 500mA Limit)
POWER
OUTPUT
23
GND
Ground
POWER
OUTPUT
24
GND
Ground
POWER
OUTPUT
– JLG Lift –
TYPE
5-25
SECTION 5 - JLG CONTROL SYSTEM
Table 5-14. J4 Connector
PIN
TAGNAME
FUNCTION
TYPE
1
12V
12V Sensor Supply
POWER
OUTPUT
2
TILTX
X-Axis Tilt Input (PWM)
ANALOG
INPUT
3
TILTY
Y-Axis Tilt Input (PWM)
ANALOG
INPUT
4
GND
Ground
POWER
OUTPUT
Table 5-15. J5 Connector
PIN
TAGNAME
1
B+
2
FUNCTION
TYPE
Master Supply Connection (from J2-1)
POWER
OUTPUT
GNDE
Ground EMS (to J1-20, J3-22)
POWER
INPUT
3
PLTS
Platform Select Input (to J1-1)
POWER
INPUT
4
GNDS
Ground Select Input
POWER
INPUT
5
IGN
Ignition Power (+12V)
POWER
OUTPUT
6
GND
Ground
POWER
OUTPUT
7
UPG
Ground Lift Up Switch
DIGITAL
INPUT
8
DNG
Ground Lift Down Switch
DIGITAL
INPUT
9
FDH
Full Drive Height Input
DIGITAL
INPUT
10
DI19
High-Sensing Digital Input 19
DIGITAL
INPUT
11
DI20
High-Sensing Digital Input 20
DIGITAL
INPUT
12
DI21
High-Sensing Digital Input 21
DIGITAL
INPUT
13
GMST
Generator Manual Start (to J3-19)
POWER
I/O
14
GFLT
Generator Fault LED (to J3-21)
POWER
I/O
15
HRMT
Hourmeter
DIGITAL
OUTPUT
Table 5-16. J6 Connector
5-26
PIN
TAGNAME
FUNCTION
TYPE
1
12V
Ignition Power (+12V)
2
RX
RS-232 Serial Receive
SERIAL
INPUT
3
TX
RS-232 Serial Transmit
SERIAL
OUTPUT
4
GND
Ground
POWER
OUTPUT
POWER
– JLG Lift–
OUTPUT
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
SECTION 6. GENERAL ELECTRICAL INFORMATION & SCHEMATICS
6.1 GENERAL
This section contains schematics to be used for locating and correcting most of the operating problems which may develop.
If a problem should develop which is not presented in this section or which is not corrected by listed corrective actions, technically qualified guidance should be obtained before proceeding with any maintenance.
IT IS GOOD PRACTICE TO AVOID PRESSURE-WASHING ELECTRICAL/ELECTRONIC COMPONENTS. IN THE EVENT PRESSURE-WASHING THE MACHINE IS NEEDED, ENSURE THE MACHINE IS SHUT DOWN BEFORE PRESSURE-WASHING. SHOULD PRESSURE WASHING
BE UTILIZED TO WASH AREAS CONTAINING ELECTRICAL/ELECTRONIC COMPONENTS, JLG INDUSTRIES, INC. RECOMMENDS A MAXIMUM PRESSURE OF 750 PSI (52 BAR) AT A MINIMUM DISTANCE OF 12 INCHES (30.5 CM) AWAY FROM THESE COMPONENTS. IF ELECTRICAL/ELECTRONIC COMPONENTS ARE SPRAYED, SPRAYING MUST NOT BE DIRECT AND BE FOR BRIEF TIME PERIODS TO AVOID
HEAVY SATURATION.
6.2 MULTIMETER BASICS
A wide variety of multimeters or Volt Ohm Meters (VOM) can be used for troubleshooting your equipment. A digital meter
with reasonable accuracy (within 7%) is recommended for the measurements in these procedures. This section shows diagrams of a common, digital VOM configured for several different circuit measurements. Instructions for your VOM may vary.
Please consult the meter operator’s manual for more information.
Grounding
"Grounding the meter" means to take the black lead (which is connected to the COM (common) or negative port) and touch
it to a good path to the negative side of the voltage source.
Backprobing
To "backprobe" means to take the measurement by accessing a connector’s contact on the same side as the wires, the back
of the connector. Readings can be done while maintaining circuit continuity this way. If the connector is the sealed type,
great care must be taken to avoid damaging the seal around the wire. It is best to use probes or probe tips specifically
designed for this technique, especially on sealed connectors. Whenever possible insert probes into the side of the connector such that the test also checks both terminals of the connection. It is possible to inspect a connection within a closed connector by backprobing both sides of a connector terminal and measuring resistance. Do this after giving each wire a gentle
pull to ensure the wires are still attached to the contact and contacts are seated in the connector.
Min/Max
Use of the "Min/Max" recording feature of some meters can help when taking measurements of intermittent conditions while
alone. For example, you can read the voltage applied to a solenoid when it is only operational while a switch, far from the
solenoid and meter, is held down.
Polarity
Finding a negative voltage or current reading when expecting a positive reading frequently means the leads are reversed.
Check what reading is expected, the location of the signal and that the leads are connected to the device under test correctly. Also check that the lead on the "COM" port goes to the ground or negative side of the signal and the lead on the other
port goes to the positive side of the signal.
Scale
M = Mega = 1,000,000 * (Displayed Number)
k = kilo = 1,000 * (Displayed Number)
m = milli = (Displayed Number) / 1,000
μ = micro = (Displayed Number) / 1,000,000
Example: 1.2 k = 1200 
Example: 50 mA = 0.05 A
3121122
– JLG Lift –
6-1
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Voltage Measurement
Resistance Measurement
Figure 6-1. Voltage Measurement (DC)
Figure 6-2. Resistance Measurement
• If meter is not auto ranging, set it to the correct range
(See multimeter’s operation manual)
• First test meter and leads by touching leads together.
Resistance should read a short circuit (very low resistance)
• Use firm contact with meter leads
• Circuit power must be turned OFF before testing
resistance
• Disconnect component from circuit before testing
• If meter is not auto ranging, set it to the correct range
(See multimeter’s operation manual)
• Use firm contact with meter leads
6-2
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Continuity Measurement
Current Measurement
Figure 6-3. Continuity Measurement
Figure 6-4. Current Measurement (DC)
• Some meters require a separate button press to
enable audible continuity testing
• Circuit power must be turned OFF before testing continuity
• Set up the meter for the expected current range
• Be sure to connect the meter leads to the correct
jacks for the current range you have selected
• Disconnect component from circuit before testing
• If meter is not auto ranging, set it to the correct range
(See multi meter’s operation manual)
• Use firm contact with meter leads
• Use firm contact with meter leads
• First test meter and leads by touching leads together.
Meter should produce an audible alarm, indicating
continuity
3121122
– JLG Lift –
6-3
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Continuity Measurement Over Long Distances
When trying to determine continuity of a harness or wire, longer than the reach of standard instrument leads, is possible to
perform the check without excessively long leads. Using the other wires in the harness one can determine the condition of a
particular wire in the harness.
Requirements:
• Harness with at least three separate wires including the wire under test.
• These wires must be able to be isolated from other wires, etc.
• Jumper or method to connect contacts on one side of harness.
• Meter that can measure resistance or continuity.
Procedure
Test multimeter leads resistance. Subtract this value from the measured resistance of the wires to get a more accurate measurement.
Consult the circuit schematic to determine which wires to use in addition to wire under test, here called wire #1 and wire #2,
and how to isolate these wires. These wires should appear in the same connectors as the wire under test or are within reach
of the jumper.
1. Disconnect all connections associated with the wire under test and the two additional wires. If harness is not completely isolated disconnect battery terminals also, as a precaution.
2. Measure continuity between all three wires, the wire under test, wire #1 and wire #2. These should be open. If not,
repair the shorted wires or replace the harness.
3. On one side, jumper from contact of wire #1 and wire #2.
4. Measure continuity between wire #1 and wire #2. If there is continuity, both wires are good and can be used for this
test. If there is not continuity, either wire could be bad. Check connections and measurement setup. Redo measurement. If still no continuity, repair wires or consult schematic for other wires to use for test.
5. Jumper from wire under test to wire #1.
6. Measure continuity. If there is continuity, the wire under test is good. Resistance of a wire increases as the length
increases and as the diameter decreases.
One can find the continuity of two wires, here #1 and #2, at once by following steps 1 through 4. If there is a problem the
third wire is used to troubleshoot the other wires. To find the problem, start at step 1 and use the entire procedure.
6-4
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
6.3 APPLYING SILICONE DIELECTRIC COMPOUND TO AMP CONNECTORS
Silicone Dielectric Compound must be used on the AMP connections for the following reasons:
• To prevent oxidation at the mechanical joint between male and female pins.
• To prevent electrical malfunction caused by low level conductivity between pins when wet.
Use the following procedure to apply Silicone Dielectric Compound to the electrical connectors.
1. To prevent oxidation and low level conductivity, silicone dielectric grease must be packed completely around male and
female pins on the inside of the connector after the mating of the housing to the header. This is easily achieved by
using a syringe to fill the header with silicone dielectric compound, to a point just above the top of the male pins inside
the header. When assembling the housing to the header, it is possible that the housing will become air locked, thus
preventing the housing latch from engaging.
2. Pierce one of the unused wire seals to allow the trapped air inside the housing to escape.
3. Install a hole plug into this and/or any unused wire seal that has silicone dielectric compound escaping from it.
Figure 6-5. AMP Connector
3121122
– JLG Lift –
6-5
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Assembly
Check to be sure the wedge lock is in the open, or as-shipped, position (See Figure 6-6. Connector Assembly (1 of 4)). Proceed as follows:
Figure 6-6. Connector Assembly (1 of 4)
1. To insert a contact, push it straight into the appropriate circuit cavity as far as it will go (See Figure 6-7. Connector
Assembly (2 of 4)).
2. Pull back on the contact wire with a force of 1 or 2 lbs. to be sure the retention fingers are holding the contact (See Figure 6-7. Connector Assembly (2 of 4)).
3. After all required contacts have been inserted, the wedge lock must be closed to its locked position. Release the locking latches by squeezing them inward (See Figure 6-8. Connector Assembly (3 of 4)).
4. Slide the wedge lock into the housing until it is flush with the housing (See Figure 6-9. Connector Assembly (4 of 4)).
Figure 6-7. Connector Assembly (2 of 4)
6-6
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Figure 6-8. Connector Assembly (3 of 4)
Figure 6-9. Connector Assembly (4 of 4)
3121122
– JLG Lift –
6-7
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Disassembly
5. Insert a 4.8 mm (3/16”) wide screwdriver blade between the mating seal and one of the red wedge lock tabs.
6. Pry open the wedge lock to the open position.
7. While rotating the wire back and forth over a half turn (1/4 turn in each direction), gently pull the wire until the contact is
removed.
Figure 6-10. Connector Disassembly
NOTE: The wedge lock should never be removed from the housing for insertion or removal of the contacts.
Wedge Lock
The wedge lock has slotted openings in the forward, or mating end. These slots accommodate circuit testing in the field, by
using a flat probe such as a pocket knife. DO NOT use a sharp point such as an ice pick.
6-8
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Service - Voltage Reading
DO NOT PIERCE WIRE INSULATION TO TAKE VOLTAGE READINGS.
It has been common practice in electrical troubleshooting to probe wires by piercing the insulation with a sharp point. This
practice should be discouraged when dealing with the AMPSEAL plug assembly, or any other sealed connector system. The
resulting pinholes in the insulation will allow moisture to invade the system by traveling along the wire strands. This nullifies
the effectiveness of the connector seals and could result in system failure.
Figure 6-11. Connector Installation
3121122
– JLG Lift –
6-9
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
6.4 WORKING WITH DEUTSCH CONNECTORS
DT/DTP Series Assembly
Figure 6-12. DT/DTP Contact Installation
1. Grasp crimped contact about 25mm behind the contact barrel.
2. Hold connector with rear grommet facing you.
3. Push contact straight into connector grommet until a click is felt. A slight tug will confirm that it is properly locked in
place.
4. Once all contacts are in place, insert wedgelock with arrow pointing toward exterior locking mechanism. The wedgelock will snap into place. Rectangular wedges are not oriented. Thy may go in either way.
NOTE: The receptacle is shown - use the same procedure for plug.
DT/DTP Series Disassembly
Figure 6-13. DT/DTP Contact Removal
5. Remove wedgelock using needlenose pliers or a hook shaped wire to pull wedge straight out.
6. To remove the contacts, gently pull wire backwards, while at the same time releasing the locking finger by moving it
away from the contact with a screwdriver.
7. Hold the rear seal in place, as removing the contact may displace the seal.
HD30/HDP20 Series Assembly
Figure 6-14. HD/HDP Contact Installation
8. Grasp contact about 25mm behind the contact crimp barrel.
9. Hold connector with rear grommet facing you.
6-10
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
10. Push contact straight into connector grommet until a positive stop is felt. A slight tug will confirm that it is properly
locked in place.
Figure 6-15. HD/HDP Locking Contacts Into Position
NOTE: For unused wire cavities, insert sealing plugs for full environmental sealing.
HD30/HDP20 Series Disassembly
Figure 6-16. HD/HDP Contact Removal
11. With rear insert toward you, snap appropriate size extractor tool over the wire of contact to be removed.
12. Slide tool along into the insert cavity until it engages contact and resistance is felt.
13. Pull contact-wire assembly out of connector.
Figure 6-17. HD/HDP Unlocking Contacts
NOTE: Do Not twist or insert tool at an angle.
3121122
– JLG Lift –
6-11
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Electrical Components Installation
PUMP/MOTOR
DRIVE
CONTACTOR
TO BATTERIES
RIGHT
DRIVE
MOTOR
DRIVE
CONTROLLER
F2
LEFT
DRIVE
MOTOR
MAIN
VALVE
PLATFORM
CONSOLE
BOX
BATTERY
CHARGER
TO GROUND
CONTROL BOX
TERMINAL J1
LIFT
CYLINDER
PRESSURE
TRANSDUCER
OR
OVERLOAD
CUT-OUT
Figure 6-18. Electrical Components Installation - (Sheet 1 of 4)
6-12
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
TO
MOTOR/
GENERATOR
GENERATOR
MODULE
J2
TO
ANALYZER
PROXIMITY SENSOR
SWITCH (USA BUILT
MACHINES S/N
0200138293 TO PRESENT)
4WD
LEFT
SIDE
MOTOR
OSCILLATING
AXLE
CYLINDERS
PROXIMITY SENSOR
SWITCH (USA BUILT
MACHINES PRIOR TO
S/N 0200138293 & ALL
BELGIUM BUILT
MACHINES)
ROTARY
ANGLE
SENSOR
SWITCH
HORN
TO
BEACON
LIGHT
HARNESS
GROUND
CONTROL
BOX
TO
ANALYZER
PC BOARD
CONTROLLER
TO
ANALYZER
Figure 6-19. Electrical Components Installation - (Sheet 2 of 4)
3121122
– JLG Lift –
6-13
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
LEVEL
JACK
SWITCHES
TO
GENERATOR
MODULE
(M3369 & M4069)
LEVEL
JACK
VALVES
ALARM
TO
PLATFORM
BEACON
LIGHT
VALVE
HARNESS
GROUND
CONTROL
BOX
Figure 6-20. Electrical Components Installation - (Sheet 3 of 4)
6-14
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
DRIVE
CONTROLLER
DRIVE
CONTACTOR
CIRCUIT
BREAKER
RECEPTACLE
AT PLATFORM
PLATFORM
CONSOLE
BOX
PLATFORM
WORKLIGHTS
Figure 6-21. Electrical Components Installation - (Sheet 4 of 4)
3121122
– JLG Lift –
6-15
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Electrical Schematic - 1870130 RevE
GROUND
ELECTRONICS
Figure 6-22. Electrical Schematic - Sheet 1 of 2
6-16
– JLG Lift –
3121122
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
GROUND
ELECTRONICS
1870130 F
Figure 6-23. Electrical Schematic - Sheet 2 of 2
3121122
– JLG Lift –
6-17
SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
2000327_B
Electrical Schematic - Kubota Engine - 2000327 RevB
Figure 6-24. Electrical Schematic - Kubota Engine (M3369 & 3369LE only)
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SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
0270787_F
Electrical Schematic - Yanmar Engine - 0270787 RevF
Figure 6-25. Electrical Schematic - Yanmar Engine (M3369 & 3369LE only)
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SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Hydraulic Diagram - 2792443 RevE
2792443_E
Figure 6-26. Hydraulic Diagram - 3369LE and M3369 (Fixed Axle)
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SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Hydraulic Diagram - 2792444 RevG
2792444_G
Figure 6-27. Hydraulic Diagram - 3369LE and M3369 (Oscillating Axle)
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SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Hydraulic Diagram - 2792445 RevF
2792445_F
Figure 6-28. Hydraulic Diagram - 4069LE and M4069 (Fixed Axle)
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SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Hydraulic Diagram - 2792446 RevH
2792446_H
Figure 6-29. Hydraulic Diagram - 4069LE and M4069 (Oscillating Axle)
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SECTION 6 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
Hydraulic Schematic - 2792442 RevF
2792442_F
Figure 6-30. Hydraulic Schematic
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Corporate Office
JLG Industries, Inc.
1 JLG Drive
McConnellsburg PA. 17233-9533
USA
(717) 485-5161
(717) 485-6417
JLG Worldwide Locations
JLG Industries (Australia)
P.O. Box 5119
11 Bolwarra Road
Port Macquarie
N.S.W. 2444
Australia
JLG Latino Americana Ltda.
Rua Eng. Carlos Stevenson,
80-Suite 71
13092-310 Campinas-SP
Brazil
+61 2 65 811111
+55 19 3295 1025
+55 19 3295 0407
+61 2 65 810122
JLG Deutschland GmbH
Max-Planck-Str. 21
D - 27721 Ritterhude - Ihlpohl
Germany
+49 (0)421 69 350 20
+49 (0)421 69 350 45
JLG Polska
UI. Krolewska
00-060 Warsawa
Poland
+48 (0)914 320 245
+48 (0)914 358 200
JLG Industries (UK) Ltd
Bentley House
Bentley Avenue
Middleton
Greater Manchester
M24 2GP - England
+44 (0)161 654 1000
JLG France SAS
Z.I. de Baulieu
47400 Fauillet
France
+33 (0)5 53 88 31 70
+33 (0)5 53 88 31 79
+44 (0)161 654 1001
JLG Equipment Services Ltd.
Rm 1107 Landmark North
39 Lung Sum Avenue
Sheung Shui N. T.
Hong Kong
(852) 2639 5783
(852) 2639 5797
JLG Industries (Italia) s.r.l.
Via Po. 22
20010 Pregnana Milanese - MI
Italy
+39 029 359 5210
+39 029 359 5845
JLG Industries (Scotland)
Wright Business Centre
1 Lonmay Road
Queenslie, Glasgow G33 4EL
Scotland
+44 (0)141 781 6700
+44 (0)141 773 1907
Plataformas Elevadoras
JLG Iberica, S.L.
Trapadella, 2
P.I. Castellbisbal Sur
08755 Castellbisbal, Barcelona
Spain
+34 93 772 4700
+34 93 771 1762
www.jlg.com
Oshkosh-JLG Singapore
Technology Equipment Pte Ltd.
29 Tuas Ave 4
Jurong Industrial Estate
639379 - Singapore
+65-6591-9030
+65-6591-9031
JLG Sverige AB
Enkopingsvagen 150
Box 704
SE - 176 27 Jarfalla
Sweden
+46 (0)850 659 500
+46 (0)850 659 534
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