New Holland T7.185, T7.210 Service Manual

SERVICE MANUAL
T7.170 / T7.185
T7.200 / T7.210
Tractor
Part number 84479148A
English
October 2011
Printed in U.S.A.
Copyright © 2011 CNH America LLC. All Rights Reserved. New Holland is a registered trademark of CNH America LLC.
Racine Wisconsin 53404 U.S.A.
Contents
INTRODUCTION
HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS A
PRIMARY HYDRAULIC POWER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.10.A
PRIMARY HYDRAULIC POWER SYSTEM Closed center mechanical remote valve . . . A.10.B
PRIMARY HYDRAULIC POWER SYSTEM Electro-hydraulic remote valve . . . . . . . . . . . . . A.10.C
SECONDARY HYDRAULIC POWER SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.12.A
HYDRAULIC COMMAND SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.14.A
PNEUMATIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.20.A
ELECTRICAL POWER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.30.A
ELECTRONIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.50.A
FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.50.A
ENGINE AND PTO IN ................................................................... B
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.10.A
FUEL AND INJECTION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.20.A
AIR INTAKE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.30.A
EXHAUST SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.40.A
EXHAUST SYSTEM Emissions control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.40.B
ENGINE COOLANT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.50.A
TRANSMISSION, DRIVE AND PTO OUT ........................................ C
TRANSMISSION Semi-Powershift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.20.D
TRANSMISSION Powershift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.20.E
TRANSMISSION Continuously Variable Transmission (CVT) . . . . . . . . . . . . . . . . . . . . . . . . . . . C.20.G
ADDITIONAL REDUCERS Overdrive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.30.D
REAR PTO Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.40.B
REAR PTO Hydraulic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.40.C
FRONT PTO Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.42.C
AXLES, BRAKES AND STEERING................................................. D
FRONT AXLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.A
REAR AXLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.12.A
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2WD-4WD SYSTEM Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.14.C
STEERING Hydraulic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.20.C
STEERING Autoguidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.20.E
SERVICE BRAKE Hydraulic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.30.C
SERVICE BRAKE Pneumatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.30.E
PARKING BRAKE Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.32.B
PARKING BRAKE Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.32.D
BRAKE CONNECTION Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.34.C
SUSPENSION Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.40.C
WHEELS AND TRACKS Wheels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.50.C
FRAME AND CAB ........................................................................ E
FRAME Primary frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.10.B
SHIELD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.20.A
USER CONTROLS AND SEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.32.A
USER PLATFORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.34.A
ENVIRONMENT CONTROL Heating, ventilation and air-conditioning. . . . . . . . . . . . . . . . . . . E.40.D
HITCH AND WORKING TOOL ....................................................... H
HITCH Front hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H.10.B
HITCH Rear hitch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H.10.C
HITCH Electronic draft control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H.10.D
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INTRODUCTION
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Contents
INTRODUCTION
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Foreword Ecology and the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Basic instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Conversion factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Consumables Lubrications and Coolants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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INTRODUCTION
Foreword
IMPORTANT INFORMATION
All repair and maintenance works listed in this manual must be carried out only by staff belonging to the NEW HOLLAND Service network, strictly complying with the instructions given and using, whenever required, the special tools.
Anyone who carries out the above operations without complying with the prescriptions shall be responsible for the
subsequent damages.
The manufacturer and all the organizations of its distribution chain, including - without limitation - national, regional or
local dealers, reject any responsibility for damages due to the anomalous behavior of parts and/or components not
approved by the manufacturer himself, including those used for the servicing or repair of the product manufactured
or marketed by the Manufacturer. In any case, no warranty is given or attributed on the product manufactured or
marketed by the Manufacturer in case of damages due to an anomalous behavior of parts and/or components not
approved by the Manufacturer.
No reproduction, though partial of text and illustrations allowed.
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INTRODUCTION
Foreword
Technical Information
This manual has been produced by a new technical information system. This new system is designed to deliver
technical information electronically through Web delivery, DVD and in paper manuals. A coding system called ICE
has been developed to link the technical information to other Product Support functions e.g. Warranty.
Technical information is written to support the maintenance and service of the functions or systems on a customers
machine. When a customer has a concern on his machine it is usually because a function or system on his machine
is not working at all, is not working efficiently, or is not responding correctly to his commands. When you refer to the
technical information in this manual to resolve that customers concern, you will find all the information classified using
the new ICE coding, according to the functions or systems on that machine. Once you have located the technical
information for that function or system then you will find all the mechanical, electrical or hydraulic devices, components, assemblies and sub assemblies for that function or system. You will also find all the types of information that
have been written for that function or system, the technical data (specifications), the functional data (how it works),
the diagnostic data (fault codes and troubleshooting) and the service data (remove, install adjust, etc.).
By integrating this new ICE coding into technical information , you will be able to search and retrieve just the right
piece of technical information you need to resolve that customers concern on his machine. This is made possible by
attaching 3 categories to each piece of technical information during the authoring process.
The first category is the Location, the second category is the Information Type and the third category is the Product:
•
LOCATION - is the component or function on the machine, that the piece of technical information is going to
describe e.g. Fuel tank.
•
INFORMATION TYPE - is the piece of technical information that has been written for a particular component or
function on the machine e.g. Capacity would be a type of Technical Data that would describe the amount of fuel
held by the Fuel tank.
•
PRODUCT - is the model that the piece of technical information is written for.
Every piece of technical information will have those 3 categories attached to it. You will be able to use any combination
of those categories to find the right piece of technical information you need to resolve that customers concern on his
machine.
That information could be:
•
the description of how to remove the cylinder head
•
a table of specifications for a hydraulic pump
•
a fault code
•
a troubleshooting table
•
a special tool
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INTRODUCTION
How to Use this Manual
This manual is divided into Sections. Each Section is then divided into Chapters. Contents pages are included at the
beginning of the manual, then inside every Section and inside every Chapter. An alphabetical Index is included at the
end of a Chapter. Page number references are included for every piece of technical information listed in the Chapter
Contents or Chapter Index.
Each Chapter is divided into four Information types:
•
Technical Data (specifications) for all the mechanical, electrical or hydraulic devices, components and, assemblies.
•
Functional Data (how it works) for all the mechanical, electrical or hydraulic devices, components and assemblies.
•
Diagnostic Data (fault codes, electrical and hydraulic troubleshooting) for all the mechanical, electrical or hydraulic devices, components and assemblies.
•
Service data (remove disassembly, assemble, install) for all the mechanical, electrical or hydraulic devices,
components and assemblies.
Sections
Sections are grouped according to the main functions or a systems on the machine. Each Section is identified by
a letter A, B, C etc. The amount of Sections included in the manual will depend on the type and function of the
machine that the manual is written for. Each Section has a Contents page listed in alphabetic/numeric order. This
table illustrates which Sections could be included in a manual for a particular product.
SECTION
A - Hydraulic – Pneumatic – Electrical – Electronic Systems
B - Engine and PTO In
C - Transmission, Drive and PTO Out
D - Axles, Brakes and Steering
E - Frame and Cab
F - Frame Positioning
G - Tool Positioning
H - Hitch and Working Tool
J - Excavating and Landscaping
K - Crop Processing
L - Field Processing
PRODUCT
Tractors
Vehicles with working arms: backhoes,
excavators, skid steers, .....
Combines, forage harvesters, balers, ....
Seeding, planting, floating, spraying
equipment, ....
Mounted equipment and tools, .....
X X X X
X X X X
X X
X X X
X
X
X
X
X X X X
X X X X
X X X
X X X
X
X
X
X X X
X
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X
X
INTRODUCTION
Section Contents
SECTION
HYDRAULIC –
PNEUMATIC –
ELECTRICAL –
ELECTRONIC
SYSTEMS
ENGINE AND PTO IN
LETTER
A
B
TRANSMISSION,
C
DRIVE AND PTO OUT
AXLES, BRAKES AND D
STEERING
FRAME AND CAB
E
FRAME POSITIONING F
TOOL POSITIONING
G
HITCH AND
WORKING TOOL
H
EXCAVATING AND
LANSCAPING
J
CROP PROCESSING
K
FIELD PROCESSING
L
DESCRIPTION
This Section covers the main systems that interact with most of
the functions of the product. It includes the central parts of the
hydraulic, electrical, electronic, pneumatic, lighting and grease
lubrication systems. The components that are dedicated to a
specific function are listed in the Chapter where all the technical
information for that function is included.
This Section covers all the functions related to the production
of power to move the machine and to drive various devices.
In the case of a pulled-type machine, this Section covers the
power take-off function where power is provided from the towing
machine.
This Section covers all the functions related to the transmission
of power from the engine to the axles and to internal or external
devices. This Section also covers the power take-off function
where power is provided to the pull-type machine and additional
Process Drive functions.
This Section covers all the functions related to moving the
machine, including tracks, wheels, steering and braking. It covers
all the axles; both driven axles and non-driven axles, including
any axle suspension.
This Section covers all the main functions and systems related to
the structure and the body of the machine, including the frame,
the shields, the operators cab and the platform. The functions
related to the positioning of the machine frame are included in
Section F, Frame Positioning.
This Section covers all the main functions and systems related to
positioning of the machine frame or to positioning the attachment
on the supporting machine frame.
This Section covers all the functions related to the final and/or
automatic positioning of the tool once the tool is positioned using
the Working Arm or the machine frame.
This Section covers all the functions related to the articulated
or single arms mounted on the front or rear of the machine. A
working arm can have various tools and quick couplers mounted
on to it. The tools and quick couplers are included in Section J,
Excavating and Landscaping.
This Section covers all the functions related to the specific tools
that mount on the front, rear or beside the machine. The tools
described here can be mounted with the positioning systems
(lifting, side shift, swing) listed in Section G Tool Positioning. This
Section covers all the quick coupling systems, located between
the tool and the positioning system. The tools used for field
preparation, soil preparation and treatment, planting and seeding
are included.
This Section covers all the functions related to crop processing.
Examples of crop processing include threshing, baling,
windrowing, cutting and conditioning.
This Section covers all the field processing functions of the
machine. Examples of field process include seeding, fertilizer
application, seedbed preparation and chemical application.
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INTRODUCTION
This manual contains the following Sections:
INTRODUCTION
DISTRIBUTION SYSTEMS
POWER PRODUCTION
POWER TRAIN
TRAVELLING
BODY AND STRUCTURE
HITCH AND WORKING TOOL
A
B
C
D
E
H
Chapters
Each Chapter is identified by a letter and number combination e.g. Engine B.10.A The first letter is identical to the
Section letter i.e. Chapter B.10 is inside Section B, Engine and PTO In.
CONTENTS
The Chapter Contents lists all the technical data (specifications), functional data (how it works), service data (remove,
install adjust, etc..) and diagnostic data (fault codes and troubleshooting) that have been written in that Chapter for
that function or system on the machine.
Contents
ENGINE AND PTO IN
ENGINE _ 10.A
TECHNICAL DATA
ENGINE - General specification (B.10.A)
FUNCTIONAL DATA
ENGINE - Dynamic description (B.10.A)
SERVICE
ENGINE - Remove (B.10.A)
DIAGNOSTIC
ENGINE - Troubleshooting (B.10.A)
INDEX
The Chapter Index lists in alphabetical order all the types of information (called Information Units) that have been
written in that Chapter for that function or system on the machine.
Index
ENGINE AND PTO IN - B
ENGINE
ENGINE - Dynamic description (B.10.A)
ENGINE - General specification (B.10.A)
ENGINE - Remove (B.10.A)
ENGINE - Troubleshooting (B.10.A)
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INTRODUCTION
Information Units and Information Search
Each chapter is composed of information units. Each information unit has the ICE code shown in parentheses which
indicates the function and the type of information written in that information unit. Each information unit has a page reference within that Chapter. The information units provide a quick and easy way to find just the right piece of technical
information you are looking for.
Example information unit
Information Unit ICE code
ICE code classification
Stack valve - Sectional View (A.10.A.18)
A
10.A
Primary hydraulic power
Hydraulic –
Pneumatic –
Electrical –
Electronic Systems
CRIL03J033E01A
18
Stack valve
1
Navigate to the correct information unit you are searching for by identifying the function and information type
from the ICE code.
•
(1) Function and (2) Information type.
•
(A) corresponds to the sections of the repair manual.
(B) corresponds to the chapters of the repair manual.
(C) corresponds to the type of information listed in the chapter contents, Technical Data, Functional Data, Diagnostic or Service.
(A) and (B) are also shown in the page numbering on the page footer.
THE REST OF THE CODING IS NOT LISTED IN ALPHANUMERIC ORDER IN THIS MANUAL.
•
You will find a table of contents at the beginning and end of each section and chapter.
You will find an alphabetical index at the end of each chapter.
•
By referring to (A), (B) and (C) of the coding, you can follow the contents or index (page numbers) and quickly
find the information you are looking for.
Page Header and Footer
The page header will contain the following references:
•
Section and Chapter description
The page footer will contain the following references:
•
Publication number for that Manual, Section or Chapter.
•
Version reference for that publication.
•
Publication date
•
Section, chapter and page reference e.g. A.10.A / 9
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INTRODUCTION
Foreword Ecology and the Environment
Soil, air, and water are vital factors of agriculture and life in general. When legislation does not yet rule the treatment
of some of the substances which are required by advanced technology, common sense should govern the use and
disposal of products of a chemical and petrochemical nature.
NOTICE: The following are recommendations which may be of assistance:
•
Become acquainted with and ensure that you understand the relative legislation applicable to your country.
•
Where no legislation exists, obtain information from suppliers of oils, filters, batteries, fuels, antifreeze, cleaning
agents, etc., with regard to their effect on man and nature and how to safely store, use and dispose of these
substances.
•
Agricultural consultants will, in many cases, be able to help you as well.
HELPFUL HINTS
•
Avoid filling tanks using cans or inappropriate pressurized fuel delivery systems which may cause considerable
spillage.
•
In general, avoid skin contact with all fuels, oils, acids, solvents, etc. Most of them contain substances which
may be harmful to your health.
•
Modern oils contain additives. Do not burn contaminated fuels and or waste oils in ordinary heating systems.
•
Avoid spillage when draining off used engine coolant mixtures, engine, gearbox and hydraulic oils, brake fluids,
etc. Do not mix drained brake fluids or fuels with lubricants. Store them safely until they can be disposed of in
a proper way to comply with local legislation and available resources.
•
Modern coolant mixtures, i.e. antifreeze and other additives, should be replaced every two years. They should
not be allowed to get into the soil but should be collected and disposed of properly.
•
Do not open the air-conditioning system yourself. It contains gases which should not be released into the atmosphere. Your NEW HOLLAND AGRICULTURE dealer or air conditioning specialist has a special extractor
for this purpose and will have to recharge the system properly.
•
Repair any leaks or defects in the engine cooling or hydraulic system immediately.
•
Do not increase the pressure in a pressurized circuit as this may lead to a component failure.
•
Protect hoses during welding as penetrating weld splatter may burn a hole or weaken them, allowing the loss of
oils, coolant, etc.
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INTRODUCTION
Safety rules
PRECAUTIONARY STATEMENTS
Personal Safety
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all
safety messages that follow this symbol to avoid possible injury or death.
Throughout this manual and on machine decals, you will find the signal words DANGER, WARNING, and CAUTION
followed by special instructions. These precautions are intended for the personal safety of you and those working
with you.
Read and understand all the safety messages in this manual before you operate or service the machine.
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. The
color associated with DANGER is RED.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
The color associated with WARNING is ORANGE.
CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury. The color associated with CAUTION is YELLOW.
FAILURE TO FOLLOW DANGER, WARNING, AND CAUTION MESSAGES COULD RESULT
IN DEATH OR SERIOUS INJURY.
NOTICE: Install new decals if the old decals are destroyed, lost painted over or cannot be read. When parts are
replaced that have decals make sure you install a new decal with each new part.
MACHINE SAFETY
NOTICE: Notice indicates a situation which, if not avoided, could result in machine or property damage. The color
associated with Notice is BLUE.
Throughout this manual you will find the signal word Notice followed by special instructions to prevent machine or
property damage. The word Notice is used to address practices not related to personal safety.
INFORMATION
NOTE: Note indicates additional information which clarifies steps, procedures, or other information in this manual.
Throughout this manual you will find the word Note followed by additional information about a step, procedure, or
other information in the manual. The word Note is not intended to address personal safety or property damage.
84479148A 15/09/2011
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INTRODUCTION
ACCIDENT PREVENTION
WARNING
Avoid injury! Always do the following before lubricating, maintaining, or servicing the machine.
1. Disengage all drives.
2. Engage parking brake.
3. Lower all attachments to the ground, or raise and engage all safety locks.
4. Shut off engine.
5. Remove key from key switch.
6. Switch off battery key, if installed.
7. Wait for all machine movement to stop.
Failure to comply could result in death or serious injury.
W0047A
Most accidents or injuries that occur in workshops are the result of non compliance to simple and fundamental safety
principles. For this reason, IN MOST CASES THESE ACCIDENTS CAN BE AVOIDED by applying the fundamental
safety principles, acting with the necessary caution and care.
Accidents may occur with all types of machine, regardless of how well the machine in question was designed and
built.
SAFETY REQUIREMENTS FOR FLUID POWER SYSTEMS AND COMPONENTS - HYDRAULICS (EUROPEAN STANDARD EN982)
•
Flexible hose assemblies must not be constructed from hoses which have been previously used as part of a
hose assembly.
•
Do not weld hydraulic pipes: when flexible hoses or piping are damaged, replace them immediately.
•
It is forbidden to modify a hydraulic accumulator by machining, welding or any other way.
•
Before removing hydraulic accumulators for servicing, the liquid pressure in the accumulators must be reduced
to zero.
•
Pressure check on hydraulic accumulators must be carried out by a method recommended by the accumulator
manufacturer.
•
Take care not to exceed the maximum allowed pressure of the accumulator. After any check or adjustment,
check for leakages or gas in the hoses or pipes.
SAFETY RULES
General guidelines
•
Carefully follow specified repair and maintenance procedures.
•
When appropriate, use P.P.E (Personal Protective Equipment)
•
Do not wear rings, wristwatches, jewellery, unbuttoned or loose articles of clothing such as: ties, torn clothing,
scarves, open jackets or shirts with open zips that may remain entangled in moving parts. It is advised to wear
approved safety clothing, e.g.: non-slip footwear, gloves, safety goggles, helmets, etc.
•
Do not carry out repair operations with someone sitting in the driver's seat, unless the person is a trained technician who is assisting with the operation in question.
•
Do not operate the machine or use any of the implements from different positions, other than the driver's seat.
•
Do not carry out operations on the machine with the engine running, unless specifically indicated.
•
Bring all hydraulic cylinders to the home positions (down, retracted, etc.) before engine shut down.
•
Stop the engine and check that the hydraulic circuits are pressure-free before removing caps, covers, valves,
etc.
•
All repair and maintenance operations must be carried out using extreme care and attention.
•
Service steps and platforms used in the workshop or elsewhere should be built according to the applicable
standards and legislation.
•
Disconnect the power take off (p.t.o). and label the controls to indicate that the machine is being serviced. Any
parts that are to be raises must be locked in position.
84479148A 15/09/2011
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INTRODUCTION
•
Brakes are inoperative when manually released for repair or maintenance purposes. Use blocks or similar devices to secure the machine in these conditions.
•
Only use specified towing points for towing the machine. Connect parts carefully. Make sure that all pins and/or
locks are secured in position before applying traction. Never remain near the towing bars, cables or chains that
are operating under load.
•
When loading or unloading the machine from the trailer (or other means of transport), select a flat area capable
of sustaining the trailer or truck wheels. Firmly secure the machine to the truck or trailer and lock the wheels in
the position used by the carrier.
•
Electric heaters, battery-chargers and similar equipment must only be powered by auxiliary power supplies with
efficient ground insulation to avoid electrical shock hazards.
•
Always use suitable hoisting or lifting devices when raising or moving heavy parts.
•
Keep bystanders away.
•
Never use gasoline, diesel oil or other inflammable liquids as cleaning agents. Use non-inflammable, non toxic
commercially available solvents.
•
Wear safety goggles with side guards when cleaning parts with compressed air.
•
Do not run the engine in enclosed spaces without suitable ventilation or exhaust extraction.
•
Never use open flames for lighting when working on the machine or checking for leaks.
•
All movements must be carried out carefully when working under, on or near the machine. Wear personal protective equipment (P.P.E.): helmets, goggles and special footwear.
•
When carrying out checks with the engine running, request the assistance of an operator in the driver's seat.
The operator must maintain visual contact with the service technician at all times.
•
If operating outside the workshop, position the machine on a flat surface and lock in position. If working on a
slope, lock the machine in position. Move to a flat area as soon as is safely possible.
•
Damaged or bent chains or cables are unreliable. Do not use them for lifting or towing. Always use suitable
protective gloves when handling chains or cables.
•
Chains should always be safely secured. Make sure that the hitch-up point is capable of sustaining the load in
question. Keep the area near the hitch-up point, chains or cables free of all bystanders.
•
Maintenance and repair operations must be carried out in a CLEAN and DRY area. Clean up any water or oil
spillage immediately.
•
Do not create piles of oil or grease-soaked rags as they represent a serious fire hazard. Always store rags in a
closed metal container.
•
Before engaging the machine, make sure that there are no persons within the machine or implement range of
action.
•
Empty your pockets of all objects that may fall accidentally unobserved into the machine inner compartments.
•
When metal parts are sticking out, use protective goggles or goggles with side guards, helmets, special footwear
and gloves.
•
When welding, use protective safety devices: tinted safety goggles, helmets, special overalls, gloves and
footwear. All persons present in the area where welding is taking place must wear tinted goggles. NEVER
LOOK DIRECTLY AT THE WELDING ARC WITHOUT SUITABLE EYE PROTECTION.
•
Always disconnect battery ground terminal when welding.
•
Metal cables tend to fray with repeated use. Always use suitable protective devices (gloves, goggles, etc.) when
handling cables.
84479148A 15/09/2011
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INTRODUCTION
Machine start-up.
•
Never run the engine in confined spaces that are not equipped with adequate ventilation for exhaust gas extraction.
•
Never place the head, body, limbs, feet, hands or fingers near rotating and moving parts.
Hydraulic systems and fuel injection systems
•
A liquid leaking from a tiny hole may be almost invisible but, at the same time, be powerful enough to penetrate
the skin. Therefore, NEVER USE HANDS TO CHECK FOR LEAKS but use a piece of cardboard or paper for
this purpose. If any liquid penetrates skin tissue, call for medical aid immediately. Failure to treat this condition
with correct medical procedure may result in serious infection or death.
•
In order to check the pressure in the system use suitable instruments.
Wheels and Tires
•
Make sure that the tires are correctly inflated at the pressure specified by the manufacturer. Periodically check
the rims and tires for damage.
•
Stand away from (at the side of) the tire when checking inflation pressure.
•
Do not use parts of recovered wheels as incorrect welding brazing or heating may weaken and eventually cause
damage to the wheel.
•
Never cut or weld a rim mounted with an inflated tire.
•
Deflate the tire before removing any objects that may be jammed in the tire tread.
•
Never inflate tires using inflammable gases, as this may result in explosions and injury to bystanders.
Removal and Re-fitting
•
Lift and handle all heavy parts using suitable hoisting equipment. Make sure that parts are sustained by appropriate hooks and slings. Use the hoisting eyebolts for lifting operations. Extra care should be taken if persons
are present near the load to be lifted.
•
Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing - safety
goggles, gloves and shoes.
•
Avoid twisting chains or metal cables. Always wear safety gloves when handling cables or chains.
84479148A 15/09/2011
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INTRODUCTION
Torque
Minimum hardware tightening torques (in N m or lb in /lb ft) for normal assembly applications unless otherwise stated
NOTICE: Shown below is the suggested initial torque tightening sequences for general applications, tighten in sequence from item 1 through to the last item of the hardware.
The minimum hardware tightening torque on drawings, in specifications etc. have priority.
The applicable CNH Standard is ENS7001.
df5019-1
1
Metric hardware
Class 8.8 in N m (lb in or lb ft)
Plated nut
Lock nut
Hardened nut
Nominal
Size
M3
1.3 N·m
(11.5 lb in)
M4
2.9 N·m
(25.7 lb in)
M5
5.9 N·m
(52.2 lb in)
M6
10.1 N·m
(89.4 lb in)
M8
24.5 N·m
(18.1 lb ft)
M10
48.7 N·m
(35.9 lb ft)
M12
85 N·m
(62.7 lb ft)
M14
135 N·m
(99.6 lb ft)
M16
210 N·m
(154.9 lb ft)
M18
299 N·m
(220.5 lb ft)
M20
425 N·m
(313.5 lb ft)
M22
579 N·m
(427 lb ft)
M24
735 N·m
(542.1 lb ft)
M27
1073 N·m
(791.4 lb ft)
M30
1461 N·m
(1077.6 lb ft)
0.7 N·m
(6.2 lb in)
1.6 N·m
(14.2 lb in)
3.2 N·m
(28.3 lb in)
5.5 N·m
(48.7 lb in)
13.5 N·m
(10.0 lb ft)
26.8 N·m
(19.8 lb ft)
46.7 N·m
(34.4 lb ft)
74.2 N·m
(54.7 lb ft)
115.5 N·m
(85.2 lb ft)
164.4 N·m
(121.3 lb ft)
233.72 N·m
(172.4 lb ft)
318.4 N·m
(234.8 lb ft)
404.2 N·m
(298.1 lb ft)
590.1 N·m
(435.2 lb ft)
803.5 N·m
(592.6 lb ft)
1.2 N·m
(10.6 lb in)
2.6 N·m
(23.0 lb in)
5.3 N·m
(46.9 lb in)
9.1 N·m
(80.5 lb in)
22 N·m
(16.2 lb ft)
43.8 N·m
(32.3 lb ft)
76.5 N·m
(56.4 lb ft)
121.5 N·m
(89.6 lb ft)
189 N·m
(139.4 lb ft)
269.1 N·m
(198.5 lb ft)
382.5 N·m
(282.1 lb ft)
521.1 N·m
(384.3 lb ft)
661.5 N·m
(487.9 lb ft)
967.5 N·m
(713.6 lb ft)
1315 N·m
(969.9 lb ft)
Class 10.9 in N m (lb in or lb ft)
Plated nut
Lock nut
Hardened nut
1.8 N·m
(15.9 lb in)
4.2 N·m
(37.2 lb in)
8.5 N·m
(75.2 lb in)
14.5 N·m
(10.7 lb ft)
35.1 N·m
(25.9 lb ft)
69.5 N·m
(51.3 lb ft)
121 N·m
(89.2 lb ft)
193 N·m
(142.3 lb ft)
301 N·m
(222 lb ft)
414 N·m
(305.4 lb ft)
587 N·m
(432.9 lb ft)
801 N·m
(590.8 lb ft)
1016 N·m
(749.4 lb ft)
1486 N·m
(1096 lb ft)
2020 N·m
(1489.9 lb ft)
84479148A 15/09/2011
14
0.9 N·m
(8.0 lb in)
2.3 N·m
(20.4 lb in)
4.6 N·m
(40.7 lb in)
7.9 N·m
(69.9 lb in)
19.3 N·m
(14.2 lb ft)
38.2 N·m
(28.2 lb ft)
66.5 N·m
(49.0 lb ft)
106.1 N·m
(78.3 lb ft)
165.5 N·m
(122.1 lb ft)
227.7 N·m
(167.9 lb ft)
322.8 N·m
(238.1 lb ft)
440.5 N·m
(324.9 lb ft)
558.8 N·m
(412.1 lb ft)
817.3 N·m
(602.8 lb ft)
1111 N·m
(819.4 lb ft)
1.6 N·m
(14.2 lb in)
3.7 N·m
(32.7 lb in)
7.6 N·m
(67.3 lb in)
13 N·m
(9.6 lb ft)
31.5 N·m
(23.2 lb ft)
62.5 N·m
(46.1 lb ft)
108.9 N·m
(80.3 lb ft)
173.7 N·m
(128.1 lb ft)
270.9 N·m
(199.8 lb ft)
372.6 N·m
(274.8 lb ft)
528.3 N·m
(389.7 lb ft)
720.9 N·m
(531.7 lb ft)
914.4 N·m
(674.4 lb ft)
1337 N·m
(986.1 lb ft)
1818 N·m
(1340.9 lb ft)
INTRODUCTION
ZEIL06CS0136F0A
2
ZEIL06CS0135F0A
3
84479148A 15/09/2011
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INTRODUCTION
Basic instructions
SHIMMING
For each adjustment operation, select adjusting shims and measure individually using a micrometer, then add up
the recorded values. Do not rely on measuring the entire shimming set, which may be incorrect, or the rated value
indicated on each shim.
ROTATING SHAFT SEALS
For correct rotating shaft seal installation, proceed as follows:
•
before assembly, allow the seal to soak in the oil it will be sealing for at least thirty minutes
•
thoroughly clean the shaft and check that the working surface on the shaft is not damaged
•
position the sealing lip facing the fluid; with hydrodynamic lips, take into consideration the shaft rotation direction
and position the grooves so that they will deviate the fluid towards the inner side of the seal
•
coat the sealing lip with a thin layer of lubricant (use oil rather than grease) and fill the gap between the sealing
lip and the dust lip on double lip seals with grease
•
insert the seal in its seat and press down using a flat punch, do not tap the seal with a hammer or mallet
•
whilst inserting the seal, check that it is perpendicular to the seat; once settled, make sure that it makes contact
with the thrust element, if required
•
to prevent damaging the seal lip on the shaft, position a protective guard during installation operations
O-RING SEALS
Lubricate the O-RING seals before inserting them in the seats, this will prevent them from overturning and twisting,
which would jeopardize sealing efficiency.
SEALING COMPOUNDS
Only use the sealants which are recommended in this manual! Before applying the sealing compound, prepare
the surfaces as follows:
•
remove any incrustations using a metal brush;
•
thoroughly de-grease the surfaces using one of the following cleaning agents: trichlorethylene, petrol or a water
and soda solution.
COTTER PINS
When fitting split cotter pins, ensure that the pin notch is positioned in the direction of the force required to stress the
pin. Spiral cotter pins do not require special positioning.
84479148A 15/09/2011
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INTRODUCTION
PROTECTING THE ELECTRONIC/ ELECTRICAL SYSTEMS DURING CHARGING OR WELDING
WARNING
Battery acid causes burns. Batteries contain sulfuric acid.
Avoid contact with skin, eyes or clothing. Antidote (external): Flush with water. Antidote (eyes): flush
with water for 15 minutes and seek medical attention immediately. Antidote (internal): Drink large
quantities of water or milk. Do not induce vomiting. Seek medical attention immediately.
Failure to comply could result in death or serious injury.
W0111A
To avoid damage to the electronic/electrical systems, always observe the following:
1.
Never make or break any of the charging circuit connections, including the battery connections, when the engine
is running.
2.
Never short any of the charging components to ground.
3.
Always disconnect the ground cable from the battery before arc welding on the unit.
4.
•
Position the welder ground clamp as close to the welding area as possible.
•
If welding in close proximity to a computer module, then the module should be removed from the unit.
•
Never allow welding cables to lay on, near or across any electrical wiring or electronic component while
welding is in progress.
Always disconnect the negative cable from the battery when charging the battery in the unit with a battery
charger.
NOTICE: If welding must be performed on the unit, the battery ground cable must be disconnected from the battery.
The electronic monitoring system and charging system will be damaged if this is not done.
SPARE PARTS
Only use "CNH Original Parts" or " NEW HOLLAND AGRICULTURE Parts".
Only genuine spare parts guarantee the same quality, duration and safety as original parts, as they are the
same parts that are assembled during standard production. Only "CNH Original Parts" or " NEW HOLLAND
AGRICULTURE Parts" can offer this guarantee. When ordering spare parts, always provide the following information:
•
Machine model (commercial name) and serial number
•
part number of the ordered part, which can be found in the "Spare Parts Catalogue", used for order processing
TOOLS
The tools that NEW HOLLAND AGRICULTURE suggests and illustrate in this manual have been:
•
specifically researched and designed for use with NEW HOLLAND AGRICULTURE machines
•
essential for reliable repair operations
•
accurately built and rigorously tested so as to offer efficient and long-lasting operation
By using these tools, Repair Personnel will benefit from:
•
operating in optimal technical conditions
•
obtaining the best results
•
saving time and effort
•
working in safe conditions
NOTE: Wear limit values indicated for certain parts should be considered to be recommended, but not binding. The
terms "front", "rear", "right-hand" and "left-hand" (when referred to different parts) are determined from the rear, facing
in the direction of travel of the machine during operation.
84479148A 15/09/2011
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INTRODUCTION
Conversion factors
Length
1 mm
1 km
1m
=
=
=
0.0393 in
0.621 miles
3.281 ft
=
=
2.471 ac
10.76 ft²
1 in
1 miles
1 ft
=
=
=
25.4 mm
1.609 km
0.3048 m
Area
1 ha
1 m²
1 ac
1 ft²
=
=
0.404 US fl oz
0.0923 m²
=
3.78 litre
35.23 litre
0.9464 litre
16.38 cm³ (cc)
0.028 m³
29.57 ml
Volume
1 litre
1 litre
1 litre
1 cm³ (cc)
1 m³
1 ml
=
=
=
=
=
=
0.26 US gal
0.0.28 Bu
1.057 US quart
0.061 in³
35.31 ft³
0.033 US fl oz
1 US gal
1 Bu
1 US quart
1 in³
1 ft³
1 US fl oz
=
=
=
=
=
2.204 lb
1 lb
=
0.4536 kg
=
0.7376 lb ft
1 lb ft
=
1.3558 N·m
=
1.358 Hp
1 Hp
=
0.746 kW
=
=
100 kPa
14.505 psi
1 psi
=
0.06894 bar
=
((1.8 x ° C) + 32) °F
1 °F
=
(0.56 x (° F - 32)) °C
=
0.2642 US gpm
1 US gpm
=
3.7853 l/min
=
0.62 mph
1 mph
=
1.6 km/h
Mass
1 kg
Torque
1 N·m
Power
1 kW
Pressure
1 bar
1 bar
Temperature
1 °C
Flow
1 l/min
Speed
1 km/h
84479148A 15/09/2011
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INTRODUCTION
Consumables Lubrications and Coolants
Lubrications
The correct engine oil viscosity grade is dependent upon ambient temperature. Refer to the chart when selecting oil
for your tractor engine.
SS09J076
1
NOTE: In areas where prolonged periods of extreme temperatures are encountered, local lubricant practices are
acceptable; such as the use of SAE 5W-30 in extreme low temperatures or SAE 50 in extreme high temperatures.
The NEW HOLLAND AMBRA MULTI BIO oil is available from your authorised dealer.
Biodegradable Transmission and Hydraulic Oil
WARNING
Burn hazard!
Be very careful to avoid contact with hot fluids. If fluid is extremely hot, allow it to cool to a moderately
warm temperature before proceeding.
Failure to comply could result in death or serious injury.
W0362A
A biodegradable oil has been approved for use in the transmission, 4WD front axle and hubs, and the hydraulic system
of your tractor. Although the oil is 90 % biodegradable, it is important to follow safe handling and disposal practices.
Biodegradable oil should not be used in conjunction with other oils. Use the following procedure to replace standard
oil with biodegradable lubricant.
1.
Operate the tractor until the oil that is being changed reaches a temperature greater than 60 °C (140 °F).
2.
Stop the engine and immediately drain the oil.
3.
Replace all transmission and hydraulic filters.
4.
Add the biodegradable oil to the correct level and run the tractor to circulate the oil.
5.
Check for oil leaks and recheck the oil level.
Sulphur in Fuel
The engine oil and filter change period are shown in the Lubrication and Maintenance in the operators manual. However, locally available fuel may have a high sulphur content, in which case the engine oil and filter change period
should be adjusted as follows:
84479148A 15/09/2011
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INTRODUCTION
Sulphur Content
Below 0.5 %
From 0.5 - 1.0 %
Above 1.0 %
Oil Change Period
Normal
Half the normal
One quarter normal
NOTE: The use of fuel with a sulphur content above 1.3 % is not recommended.
Coolants
WARNING
Hazardous chemicals!
Chemical agent may be harmful.
-Avoid contact with eyes, and prolonged/repeated skin contact.
-Wear protective goggles when handling.
-Eye contact: Flush with water for 15 minutes. Seek immediate medical assistance.
-Wash skin with soap and water after handling.
-Keep out of reach of children.
Failure to comply could result in death or serious injury.
W0370A
To reduce the amount of deposits and corrosion, the water used in the cooling system must comply with the following
values.
Total Hardness
300 parts per million
Chloride
100 parts per million
Sulphate
100 parts per million
Using Plain water
If you reside in a country where antifreeze is not available, use clean water premixed with 5 % chemical inhibitor. The
inhibitor is available from your authorised dealer.
Lubrications and Coolant Specifications
RECOMMENDED FLUIDS AND APPLICATIONS
ENGINE OIL
NEW HOLLAND AMBRA MASTERGOLD™ HSP ENGINE OIL
SAE 15W-40
NEW HOLLAND AMBRA MASTERGOLD™ HSP ENGINE OIL
SAE 10W-30
TRANSMISSION, REAR AXLE AND HYDRAULIC
SYSTEM OIL
NEW HOLLAND AMBRA MULTI G™ HYDRAULIC
NH
SPECIFICATION
INTERNATIONAL
SPECIFICATION
NH 330 H
NH 324 H
API CI-4
ACEA E7
NH 410 B
API GL4
(SAE 10W-30)
(ISO VG32/46)
NH 900 A
Ethylene Glycol
NH 610 A
n/a
ISO 7308
PAG-E13
ISO100 Viscosity
NH 710 A
NLGI 2
TRANSMISSION OIL
FRONT AXLE (Axle and Hubs)
NEW HOLLAND AMBRA MULTI G™ HYDRAULIC
TRANSMISSION OIL
FRONT P.T.O GEARBOX OIL
NEW HOLLAND AMBRA MULTI G™ HYDRAULIC
TRANSMISSION OIL
ENGINE RADIATOR COOLANT
NEW HOLLAND AMBRA AGRIFLU
(mixed with 50% of water)
BRAKE OIL
NEW HOLLAND AMBRA BRAKE LHM
AIR CONDITIONING COMPRESSOR OIL
Low Viscosity Oil SP10
GREASE FITTINGS AND BEARINGS
NEW HOLLAND AMBRA GR-9 MULTI-PURPOSE GREASE
84479148A 15/09/2011
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INTRODUCTION
Regarding filling quantity - see Capacities ()
84479148A 15/09/2011
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INTRODUCTION
Capacities
UNIT
FUEL TANK
AUXILIARY FUEL TANK
DEF/ AdBlue TANK
COOLING SYSTEM
ENGINE (including filter)
TRANSMISSION / REAR AXLE / HYDRAULICS
Range Command
Power Command
4WD FRONT AXLE - DIFFERENTIAL
4WD FRONT HUBS
(Class 3 Axle - less brakes)
4WD FRONT HUBS
(Class 3 Axle - with brakes)
4WD FRONT HUBS
(Class 4 Axle - less brakes)
4WD FRONT HUBS
(Class 4 Axle - with brakes)
FRONT P.T.O.
UNIT
FUEL TANK
AUXILIARY FUEL TANK
DEF/ AdBlue TANK
COOLING SYSTEM
ENGINE (including filter)
TRANSMISSION / REAR AXLE / HYDRAULICS
4WD FRONT AXLE - DIFFERENTIAL
4WD FRONT HUBS
(Class 3 Axle - less brakes)
4WD FRONT HUBS
(Class 3 Axle - with brakes)
4WD FRONT HUBS
(Class 4 Axle - less brakes)
4WD FRONT HUBS
(Class 4 Axle - with brakes)
FRONT P.T.O.
T7.170 RC/PC T7.185 RC/PC T7.200 RC/PC T7.210 RC/PC
270 l (71.3 US gal)
70 l (18.5 US gal)
51 l (13.5 US gal)
26 l (6.9 US gal)
15 l (3.96 US gal)
75 l (19.8 US gal)
78 l (20.6 US gal)
75 l (19.8 US gal)
78 l (20.6 US gal)
9 l (2.38 US gal)
1.25 l (0.33 US gal)
3.0 l (0.79 US gal)
3.6 l (0.95 US gal)
4.0 l (1.06 US gal)
0.5 l (0.13 US gal)
T7.170 AC
T7.185 AC
T7.200 AC
T7.210 AC
270 l (71.3 US gal)
70 l (18.5 US gal)
51 l (13.5 US gal)
26 l (6.9 US gal)
15 l (3.96 US gal)
65 l (17.2 US gal)
68 l (18.0 US gal)
9 l (2.38 US gal)
1.25 l (0.33 US gal)
3.0 l (0.79 US gal)
3.6 l (0.95 US gal)
4.0 l (1.06 US gal)
0.5 l (0.13 US gal)
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SERVICE MANUAL
HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command ,
T7.185 AutoCommand , T7.185 Power Command , T7.185 Range Command ,
T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command ,
T7.210 AutoCommand , T7.210 Power Command , T7.210 Range Command
84479148A 15/09/2011
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Contents
HYDRAULIC, PNEUMATIC, ELECTRICAL,
ELECTRONIC SYSTEMS - A
PRIMARY HYDRAULIC POWER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.10.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
PRIMARY HYDRAULIC POWER SYSTEM Closed center mechanical remote valve . . . . . A.10.B
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
PRIMARY HYDRAULIC POWER SYSTEM Electro-hydraulic remote valve . . . . . . . . . . . . . . . A.10.C
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
SECONDARY HYDRAULIC POWER SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.12.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
HYDRAULIC COMMAND SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.14.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
PNEUMATIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.20.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
ELECTRICAL POWER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.30.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
ELECTRONIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.50.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.50.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command , T7.185 AutoCommand , T7.185 Power Command
, T7.185 Range Command , T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command , T7.210 AutoCommand ,
T7.210 Power Command , T7.210 Range Command
84479148A 15/09/2011
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HYDRAULIC, PNEUMATIC, ELECTRICAL,
ELECTRONIC SYSTEMS - A
PRIMARY HYDRAULIC POWER SYSTEM - 10.A
T7.170 AutoCommand , T7.170 Power Command , T7.170 Range Command ,
T7.185 AutoCommand , T7.185 Power Command , T7.185 Range Command ,
T7.200 AutoCommand , T7.200 Power Command , T7.200 Range Command ,
T7.210 AutoCommand , T7.210 Power Command , T7.210 Range Command
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Contents
HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC
SYSTEMS - A
PRIMARY HYDRAULIC POWER SYSTEM - 10.A
TECHNICAL DATA
Power beyond
Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hydraulic pump
Variable displacement pump - General specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Charge pump
General specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FUNCTIONAL DATA
PRIMARY HYDRAULIC POWER SYSTEM
Static description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
T7.170 Range Command, T7.170 Power Command, T7.185 Range Command, T7.185 Power Command, T7.200 Range
Command, T7.200 Power Command, T7.210 Range Command, T7.210 Power Command
Static description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
T7.170 AutoCommand, T7.185 AutoCommand, T7.200 AutoCommand, T7.210 AutoCommand
Hydraulic schema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
T7.170 AutoCommand, T7.185 AutoCommand, T7.200 AutoCommand, T7.210 AutoCommand
Power beyond
Exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Hydraulic pump
Variable displacement pump - Dynamic description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Compensator
Exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SERVICE
PRIMARY HYDRAULIC POWER SYSTEM
Test Using DATAR Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Hydraulic pump
Variable displacement pump - Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Variable displacement pump - Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Compensator
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Filter
Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Power beyond - Torque
BAIL10CVT060FAB
1
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Hydraulic pump Variable displacement pump - General specification
Variable displacement pump
Type
Variable Displacement Closed Centre
Load Sensing Piston Pump
Rotation
Clockwise
Pump speed @ engine speed 2400 RPM maximum rated 3000 RPM
speed (Theoretical)
2750 RPM
Pump speed @ engine speed 2200 RPM
Output @ engine speed 2200 RPM (Standard flow)
125 l/min (33.0 US gpm)
Output @ engine speed 2200 RPM(High flow)
140 l/min (37.0 US gpm)
Piston Pump displacement (Standard flow)
56 cm³/rev
Piston Pump displacement (High flow)
63 cm³/rev
Low Standby Pressure
26 bar (377.0 psi) ± 1 bar (14.5 psi)
Low Standby Pressure (with Italian trailer brakes)
36 bar (522.0 psi)
High Standby Pressure
210 bar (3045.00 psi) ± 5 bar (72.5 psi)
Maximum system pressure
245 bar (3552.5 psi)± 5 bar (72.5 psi)
Cooler By Pass valve
5.8 bar (84.1 psi).
Charge Pump
Type
Charge Pump displacement
Output @ engine speed 2200 RPM Standard flow
Output @ engine speed 2200 RPM Hi flow
Charge pressure filter dump valve :
Crack open
Fully open
Charge pressure
Charge pressure switch closes
Internal rotor gear pump
74 cm³/rev Standard flow
82 cm³/rev High flow
200 l/min (52.8 US gpm)
225 l/min (59.4 US gpm)
10 bar (145.0 psi)
15 bar (217.5 psi)
2 - 4 bar (29.0 - 58.0 psi)
1 bar (14.5 psi)
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Charge pump - General specification
Charge Pump
Type
Charge Pump displacement
Output @ engine speed 2200 RPM Standard flow
Output @ engine speed 2200 RPM Hi flow
Charge pressure filter dump valve :
Crack open
Fully open
Charge pressure
Charge pressure switch closes
Internal rotor gear pump
74 cm³/rev Standard flow
82 cm³/rev High flow
250 l/min (66 US gpm)
250 l/min (66 US gpm)
10 bar (145.0 psi)
15 bar (217.5 psi)
2 - 4 bar (29.0 - 58.0 psi)
1 bar (14.5 psi)
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
PRIMARY HYDRAULIC POWER SYSTEM - Static description
T7.170 Range Command, T7.170 Power Command, T7.185 Range Command, T7.185 Power Command, T7.200 Range Command, T7.200 Power
Command, T7.210 Range Command, T7.210 Power Command
The hydraulic systems can be separated into the following circuits :-
High Pressure Circuit
Hydraulic Lift Assembly.
Remote Control Valves.
Trailer Brake (Where Fitted)
Suspended Front Axle.
Front Lift (Where fitted).
Steering Circuit
Steering Motor and Cylinders
Low Pressure Circuit
Independent Power Take Off (PTO).
Differential Lock
Front Wheel Drive engagement
Transmission clutch and synchroniser engagement
Creeper engagement (Where fitted)
Front PTO (Where fitted)
50 kph engagement (Where fitted)
Lubrication Circuit
PTO Clutch Plates
Transmission Clutch Plates.
Transmission Shaft Pressure Lube
Pump Drive Gear Bearing.
Hydraulic Lift Cross Shaft
Mechanical Remote
Valves
Options/Configurations
Hydraulic Pump/ HPL/ Remote Valve Options
Less Hydraulic Trailer Brakes With Hydraulic Trailer Brakes Hydraulic Trailer Brake Italy
Variable Displacement Pump.
EDC
2 Non Configurable
2 Configurable
1 Non Configurable + 2 Configurable
2 Non Configurable + 2 Configurable
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Electro-Hydraulic
Remote Valves
Transmission
Options/Configurations
2, 3, or 4 Electro hydraulically operated valves
18
18
19
19
17
18
18
19
19
X
X
X
X
X
X
X
X
X
6
6
6
6
6
6
6
6
6
Table
40KM/H
35KM/H
40KM/H
50KM/H
30KM/H
40KM/H
35KM/H
40KM/H
50KM/H
SEMIPOWERSHIFT
SEMIPOWERSHIFT
SEMIPOWERSHIFT
SEMIPOWERSHIFT
SEMIPOWERSHIFT
FULLPOWERSHIFT
FULLPOWERSHIFT
FULLPOWERSHIFT
FULLPOWERSHIFT
1
The high pressure circuit is of the `Closed Centre Load Sensing' design on all tractor model options fed by a Variable
Displacement Pump.
Figure 1 shows the variable displacement pump and filter assembly.
BAIL07APH323ASA
1
Closed centre remote valves .
There are two types of remote valves available for the closed centre system. Standard fitting are the mechanical
remote valves operated via a cable from within the cab and optional are electro hydraulically operated valves, (1)
Figure 2, which are operated by electrical switches and have their own in built processor to control oil flow via a
solenoid valve.
BAIL10CVT038AAB
2
The hydraulic lift Electronic Draft Control valve (EDC valve) is a stack type proportional solenoid operated valve (1)
mounted with the remote control valves at the rear of the tractor. (Refer to HITCH Electronic draft control - Static
description (H.10.D))
Tractors installed with the electronic draft control hydraulic lift assembly use a unique operator control panel.
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
BAIL10CCM010AAB
BSE2884A
(1). Draft sensitivity control knob
(3). Height limit control knob
4
(2). Drop rate control knob
(4). Slip limit control knob
BRL6436B
(1). Wheel slip control knob
(3).Front hitch height limit control knob
(5). Draft sensitivity control knob
3
5
(2). EHR Function control knob
(4). Drop rate control knob
(6). Rear hitch height limit control knob
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
BAIL07APH331ASA
(1). Stop adjuster thumbwheel
(3). Draft loading wheel
6
(2). Position control lever
(4). Raise/lower switch
BRK5798B
7
The raise and lowering functions of the electronic draft control lift system can also be operated from the rear fender
switches (1) and (2)
BSE3774A
8
Mechanical remote control valves (1) are also available with electronic draft control. (2). Mechanical remotes are also
available with a combination configurable and non configurable valve slices . See Table 1
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9
BSF3967A_430
Located below the Electronic Draft Control valve (Where fitted), is the Hydraulic Power Tapping port (Power Beyond)
block.This includes a priority valve and also a low pressure regulating valve (1). This block also has a flange plate
which allows the addition of a trailer brake valve.
BSE3845A
1. Power Beyond Ports
10
2. Pressure Relief Valve
NOTE: Semi Powershift transmission tractors have two shift buttons plus an extra range button on the reverse side
of the handle.
CLOSED CENTRE LOAD SENSING HIGH PRESSURE HYDRAULIC CIRCUIT
The principal of operation of the closed centre load sensing high pressure hydraulic circuit with variable flow piston
pump is to supply oil flow on demand. It also enables simultaneous operation of the trailer brakes, hydraulic lift,
remote control valve assemblies and front axle suspension where fitted. The load sensing variable flow piston pump
offers significant benefits in reducing the engine power loss that occurs in open centre systems where a high volume
of oil, often far in excess of demand, is continuously pumped round the hydraulic circuit even when they are not being
operated.
A fixed displacement pump (Charge Pump) serves as an initial displacement pump for the variable displacement pump
. The variable displacement pump first of all supplies oil to the trailer brake valve (where fitted), the remote valves
and electronic draft control valve and a pilot oil supply with lower priority. The highest load pressure is indicated to
the flow and compensating valve on the pump via the load sensing line. The flow and compensator valve controls
the pump pressure in such a way that it always exceeds the highest load pressure by a pre-set difference. A priority
valve for low pressure circuit demand is located in the bottom subplate of the remote valve stack. Tractors fitted with
Electro-hydraulic remote valves also have high pressure oil supplied from the variable displacement pump to the top
plate of the remote valve stack. The oil passes through the top plate via a small filter and a pressure limiting valve (
20 - 22 Bar). The oil is then directed to the pilot oil supply of the electro-hydraulic control valve.
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
BAIL07APH330GSA
1. High Pressure Feed to Electro-Hydraulic Valve Pilot
Line
3. Electronic Draft Control Valve
5. Low Pressure Feed
7. Lubrication Manifold
9. Variable Displacement Pump
11. High Pressure Feed to Electro-Hydraulic Remote
Valves
13. Feed to trailer brake Coupler
11
2. Electro-Hydraulic Remote Valves
4. Trailer Brake Valve (Where Fitted)
6. Load Sensing Line
8. Low Pressure Feed to 50 km/h 19th Gear Clutch
Manifold
10. Flow and Pressure Compensator Valve
12. Return line from Hydraulic Lift Cylinder
The main filter (1) and the charge filter (2) Figure 12 are installed on tractors with variable displacement pump (CCLS
system).
1.
Main Intake (Suction) Filter
2.
Charge Filter
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
BAIS06CCM055AVA
12
Two valves are located within the filter assembly cap. These are (1) the 0.8 bar (11.600 psi) supplementary lube
valve and the 3 bar (43.500 psi) charge pressure bypass valve (2).
BRJ5174B
13
High Pressure Hydraulic System, Variable Displacement Pump (CCLS) - Electrical Switches
1.
Low Charge Pressure Warning Switch
2.
Intake Filter restriction (vacuum) Switch
3.
Low Oil Temperature Switch
BAIL07APH325ASA
14
Mid-Mount Remote Valves.
Optional additional remote valves are mounted under the cab. Connected into the high pressure oil line supplied from
the hydraulic pump after the trailer brake valve and operated via a joystick control in the cab. (Refer to Mid-mount
remote control valve - Static description (A.10.C))
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BAIL06CCM088ASA
15
Suspended front axle control valve (where fitted)
The suspension control valve is located on the right hand side of the tractor. High pressure oil is fed from the power
beyond port on the sub plate of the remote valve stack and with the use of processor controlled PWM valves controls
the flow of oil to the suspension cylinder (Refer to SUSPENSION Hydraulic - Static description (D.40.C))
BAIL10CVT051AAB
16
Front Axle Suspension Cylinder
BSE3769A
17
Steering Motor
There are two types of steering motors fitted depending on whether the tractor is with or less Supersteer. The with
Supersteer models are of a Dynamic load sensing type with a variable displacement, depending on the speed the
steering wheel is rotated. The less Supersteer models use a fixed displacement motor. Also fitted as an option on
some models is a Fast Steer valve (1) which is coupled to the steering motor (2) .
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18
BAIL07APH352ASA
Steering Cylinders.
Receives high pressure oil directly from the steering motor.
BSE2868B
19
Load Sensing Shuttle Valve.
Located in each remote valve slice, the Electronic Draft Control valve and between the trailer brake valve, front suspension valve and mid-mounted valves, where fitted, is the load sensing shuttle valve (2) Figure 20. This allows the
function with the highest pressure demand to send sensing pressure to the load sensing valve, Figure 21, on the
variable displacement pump.
BSB0388A_436
1.
Load Sensing Line
2.
Pressure Compensator Valve
3.
Flow Compensating Valve
4.
Valve Body
20
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BAIL07APH326ASA
21
Operation of the closed centre high pressure hydraulic circuit is as follows:The components in the high pressure hydraulic circuit are connected by their load sensing lines to the hydraulic load
sensing valve which controls the output of the hydraulic pump.
When the trailer brakes, remote control valves, hydraulic lift or front axle suspension (where fitted) are operating, the
load sensing valve on variable flow piston pump, compares the pressure in the component load sense line with the
output pressure of the hydraulic pump.
If pump output pressure is less than the combined pressure of the load sense line and spring force of the flow control valve, then pump output continues to increase. When circuit demand is satisfied pump pressure overcomes the
combined pressure of the load sense line and flow compensating valve spring. This moves the spool in the flow compensating valve to the right, allowing control pressure oil to be directed to the variable flow swash plate servo piston,
which de-strokes the pump to adjust output to circuit demand.
High Pressure oil is fed to a subplate at the bottom of the remote valve stack where it is directed to the Trailer Brake
valve which has priority for safety reasons. The oil is then redirected to the Electronic Draft Control Valve and the
Electro-Hydraulic Remote Valves. Within the subplate is a pressure compensating valve which diverts the oil to the
low pressure system at a pressure of 18 bar (261.00 psi).
High Pressure oil is also fed to the top of the Remote Valve stack through an end plate which incorporates a pressure
limiting valve and this supplies oil at 20 - 22 bar to the pilot line galleries in the Electro-Hydraulic Remote Valves.
Surplus oil from the charge pump to the variable displacement pump is fed past the 0.8 bar valve and boosts the
pressure in the lubrication circuit.
The trailer brake valve is located on the sub plate of the remote valve stack. The valve diverts oil pressure to the
trailer brakes whenever the brake pedals are depressed.
The trailer brake has absolute priority over other services in the circuit.
BAIL07APH327ASA
22
The remote valves are available as two, three or four valves per tractor.
The valves can be double-acting with float and kick out.
Double acting convertible to single-acting with float.
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Double acting convertible to single-acting.
BSE3664A_442
BAIL07APH328ASA
23
24
When the oil is cold and pressure differential across the oil cooler is higher than 6 bar ( 87 lbf/in2) the cooler by-pass
valve (1) located in the transmission top cover will operate to ensure that adequate flow to the lubrication circuit is
maintained. This feature of diverting oil from the cooler assists in aiding a rapid warm up of oil in cold weather conditions.
The steering pump / steering return oil is directed through the oil cooler at the front of the tractor and is limited to a
maximum pressure of 5.59 bar (81.06 psi)) by the lubrication relief valve located in the transmission top cover.
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
PRIMARY HYDRAULIC POWER SYSTEM - Static description
T7.170 AutoCommand, T7.185 AutoCommand, T7.200 AutoCommand, T7.210 AutoCommand
The hydraulic systems can be separated into the following circuits :-
High Pressure Circuit
Hydraulic Lift Assembly.
Remote Control Valves.
Trailer Brake (Where Fitted)
Suspended Front Axle.
Front Lift (Where fitted).
Steering Circuit
Steering Motor and Cylinders
Low Pressure Circuit
Independent Power Take Off (PTO).
Differential Lock
Front Wheel Drive engagement
Transmission clutch and synchroniser engagement
Creeper engagement (Where fitted)
Front PTO (Where fitted)
50 kph engagement (Where fitted)
Hydrostatic Unit
Lubrication Circuit
PTO Clutch Plates
Transmission Clutch Plates.
Transmission Shaft Pressure Lube
Pump Drive Gear Bearing.
Hydraulic Lift Cross Shaft
Mechanical Remote
Valves
Electro-Hydraulic
Remote Valves
Options/Configurations
Hydraulic Pump/ HPL/ Remote Valve Options
Less Hydraulic Trailer Brakes With Hydraulic Trailer Brakes Hydraulic Trailer Brake Italy
Variable Displacement Pump.
Electronic Draft Control valve (EDC valve)
1 Non Configurable + 2 Configurable
2 Non Configurable + 2 Configurable
3, 4 or 5 Electro hydraulically operated valves
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Transmission
Options/Configurations
Hydraulic CVT
Table
1
BAIL10CVT067GAB
1
Main hydraulic components
1.Hydraulic lift cylinder
3.Electronic draft control valve
5.High pressure feed pipe
7.Gear pump
9.Variable displacement pump
2.Hydraulic remote valves
4.Distribution manifold
6.Hydrostat control valve
8.Main suction filter
10.Trailer brake valve
The high pressure circuit is of the `Closed Centre Load Sensing' design on all tractor model options fed by a Variable
Displacement Pump.
Figure 2 shows the variable displacement pump (1) and suction filter assembly (2).
When the oil is cold and pressure differential across the oil cooler is higher than 5 °C (41.0 °F) the cooler by-pass
valve located in the charge pump will operate to ensure that adequate flow to the lubrication circuit is maintained. This
feature of diverting oil from the cooler assists in aiding a rapid warm up of oil in cold weather conditions.
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BAIL10CVT037AAB
2
The gear pump (1) Figure 3 supplies low pressure and lubrication oil.
BAIL10CVT066AAB
3
Located on the right hand side of the rear axle housing is a resounding filter assembly.
BAIL10CVT039AAB
4
The priority valve (1) located on the top of the main pump diverts high pressure oil to the steering, the trailer brake
valve (where fitted) (2) and high pressure circuit. (Refer to Priority valve - Dynamic description (A.14.A))
BAIL10CVT041AAB
5
Closed centre remote valves .
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There are two types of remote valves available for the closed centre system. Mechanical remote valves operated
via a cable from within the cab or electro hydraulically operated valves, (1) Figure 6, which are operated by electrical
switches and have their own in built processor to control oil flow via a solenoid valve.
BAIL10CVT038AAB
6
Mechanical remote control valves (1) are also available with electronic draft control. (2). Mechanical remotes are also
available with a combination configurable and non configurable valve slices . See Table 1
BRE1744B
7
The hydraulic lift Electronic Draft Control valve (EDC valve) is a stack type proportional solenoid operated valve (1)
mounted with the remote control valves at the rear of the tractor. (Refer to HITCH Electronic draft control - Static
description (H.10.D)
BAIL10CCM010AAB
8
Tractors installed with the electronic draft control hydraulic lift assembly use a unique operator control panel.
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BRL6436B
(1). Wheel slip control knob
(3).Front hitch height limit control knob
(5). Draft sensitivity control knob
9
(2). EHR Function control knob
(4). Drop rate control knob
(6). Rear hitch height limit control knob
10
BAIL07APH331ASA
(1). Stop adjuster thumbwheel
(3). Draft loading wheel
(2). Position control lever
(4). Raise/lower switch
BRE1481B
11
The raise and lowering functions of the electronic draft control lift system can also be operated from the rear fender
switch (1)
The raise and lowering functions of the electronic draft control lift system can also be operated from the rear fender
switch (1)
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BRK5798B
12
The raise and lowering functions of the electronic draft control lift system can also be operated from the rear fender
switches (1) and (2)
BSF3967A_430
13
Located below the Electronic Draft Control valve (Where fitted), is the Hydraulic Power Tapping port (Power Beyond)
block. This includes a priority valve and also a low pressure regulating valve (1).
BSE3845A
1. Power Beyond Ports
14
2. Pressure Relief Valve
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BAIL10CVT065AAB
15
Power beyond slice with ISO standard couplers
BAIL10CVT061AAB
16
Power beyond hydraulic return port (1)
The Power beyond hydraulic return port is used to reduce back pressure in the remote hydraulic return line and create
more efficient motor operation. The motor return circuit is also used where a return circuit with low back pressure is
desired for improved implement operation
BAIL10CVT051AAB
17
Suspension valve (1) Refer to SUSPENSION Hydraulic - Static description (D.40.C)
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BAIL10CVT063FAB
18
Front hydraulic power lift
CLOSED CENTRE LOAD SENSING HIGH PRESSURE HYDRAULIC CIRCUIT
The principal of operation of the closed centre load sensing high pressure hydraulic circuit with variable flow piston
pump is to supply oil flow on demand. It also enables simultaneous operation of the trailer brakes, hydraulic lift,
remote control valve assemblies and front axle suspension where fitted. The load sensing variable flow piston pump
offers significant benefits in reducing the engine power loss that occurs in open centre systems where a high volume
of oil, often far in excess of demand, is continuously pumped round the hydraulic circuit even when they are not being
operated.
A fixed displacement pump (Charge Pump) serves as an initial displacement pump for the variable displacement pump
. The variable displacement pump first of all supplies oil to the trailer brake valve (where fitted), the remote valves
and electronic draft control valve and a pilot oil supply with lower priority. The highest load pressure is indicated to
the flow and compensating valve on the pump via the load sensing line. The flow and compensator valve controls
the pump pressure in such a way that it always exceeds the highest load pressure by a pre-set difference. A priority
valve for low pressure circuit demand is located in the bottom subplate of the remote valve stack. Tractors fitted with
Electro-hydraulic remote valves also have high pressure oil supplied from the variable displacement pump to the top
plate of the remote valve stack. The oil passes through the top plate via a small filter and a pressure limiting valve (
20 - 22 Bar). The oil is then directed to the pilot oil supply of the electro-hydraulic control valve.
The main filter (1) and the charge filter (2) Figure 19 are installed on tractors with variable displacement pump (CCLS
system).
1.
Main Intake (Suction) filter
2.
Charge filter
3.
Hydrostat filter
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BAIL10CVT050AAB
19
Two valves are located within the filter assembly cap. These are (1) the 0.8 bar (11.600 psi) supplementary lube
valve and the 3 bar (43.500 psi) charge pressure bypass valve (2).
BRJ5174B
20
High Pressure Hydraulic System, Variable Displacement Pump (CCLS) - Electrical Switches
1.
Low Charge Pressure Warning Switch
2.
Intake Filter restriction (vacuum) Switch
3.
Low Oil Temperature Switch
BAIL10CVT058AAB
21
Mid-Mount Remote Valves.
Optional additional remote valves are mounted under the cab. Connected into the high pressure oil line supplied from
the hydraulic pump after the trailer brake valve and operated via a joystick control in the cab. (Refer to Mid-mount
remote control valve - Static description (A.10.C))
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BAIL06CCM088ASA
22
Suspended front axle control valve (where fitted)
The suspension control valve is located on the right hand side of the tractor. High pressure oil is fed from the power
beyond port on the sub plate of the remote valve stack and with the use of processor controlled PWM valves controls
the flow of oil to the suspension cylinder (Refer to SUSPENSION Hydraulic - Static description (D.40.C))
BAIL10CVT051AAB
23
Front Axle Suspension Cylinder
BSE3769A
24
Steering Motor
There are two types of steering motors fitted depending on whether the tractor is with or less Supersteer. The with
Supersteer models are of a Dynamic load sensing type with a variable displacement, depending on the speed the
steering wheel is rotated. The less Supersteer models use a fixed displacement motor. Also fitted as an option on
some models is a Fast Steer valve (1) which is coupled to the steering motor (2) .
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25
BAIL07APH352ASA
Steering Cylinders.
Receives high pressure oil directly from the steering motor.
BSE2868B
26
Load Sensing Shuttle Valve.
Located in each remote valve slice, the Electronic Draft Control valve and between the trailer brake valve, front suspension valve and mid-mounted valves, where fitted, is the load sensing shuttle valve (2) Figure 27. This allows the
function with the highest pressure demand to send sensing pressure to the load sensing valve, Figure 28, on the
variable displacement pump.
BSB0388A_436
27
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BAIL10CVT056AAB
28
Operation of the closed centre high pressure hydraulic circuit is as follows:The components in the high pressure hydraulic circuit are connected by their load sensing lines to the hydraulic load
sensing valve which controls the output of the hydraulic pump.
When the trailer brakes, remote control valves, hydraulic lift or front axle suspension (where fitted) are operating, the
load sensing valve on variable flow piston pump, compares the pressure in the component load sense line with the
output pressure of the hydraulic pump.
If pump output pressure is less than the combined pressure of the load sense line and spring force of the flow control valve, then pump output continues to increase. When circuit demand is satisfied pump pressure overcomes the
combined pressure of the load sense line and flow compensating valve spring. This moves the spool in the flow compensating valve to the right, allowing control pressure oil to be directed to the variable flow swash plate servo piston,
which de-strokes the pump to adjust output to circuit demand.
High Pressure oil is fed to a subplate at the bottom of the remote valve stack where it is directed to the Trailer Brake
valve which has priority for safety reasons. The oil is then redirected to the Electronic Draft Control Valve and the
Electro-Hydraulic Remote Valves. Within the subplate is a pressure compensating valve which diverts the oil to the
low pressure system at a pressure of 18 bar (261.00 psi).
High Pressure oil is also fed to the top of the Remote Valve stack through an end plate which incorporates a pressure
limiting valve and this supplies oil at 20 - 22 bar to the pilot line galleries in the Electro-Hydraulic Remote Valves.
Surplus oil from the charge pump to the variable displacement pump is fed past the 0.8 bar valve and boosts the
pressure in the lubrication circuit.
The trailer brake valve (1) is under the cab and is mounted on the priority valve at the top of the main pump unit. The
trailer brake valve allows pressure oil to flow to the trailer brake system, when both of the tractor's brake pedals are
depressed.
The trailer brake has absolute priority over other services in the circuit.
BAIL10CVT062AAB
29
The remote valves are available as two, three or four valves per tractor.
The valves can be double-acting with float and kick out.
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Double acting convertible to single-acting with float.
Double acting convertible to single-acting.
30
BSE3664A_442
Lubrication oil is supplied by the gear pump and is distributed via the distribution manifold (1) Figure 31 .
BAIL10CVT040AAB
31
The hydrostatic unit is located in the flywheel housing of the transmission.To maintain the temperature in the hydrostatic unit at a constant level, a certain amount of oil from the closed circuit is steadily replaced with oil from the feed
line. The flushing valve flushes out a fixed amount of oil from the low pressure side of the circuit and channels it
directly to tank.
SS10E132
32
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PRIMARY HYDRAULIC POWER SYSTEM - Hydraulic schema
T7.170 AutoCommand, T7.185 AutoCommand, T7.200 AutoCommand, T7.210 AutoCommand
1. Mid mount remote valves
3. CVT control manifold
5. Variable displacement closed centre load sensing
pump (refer to Hydraulic pump Variable displacement
pump - Dynamic description (A.10.A) )
7. Trailer brake valve
9. Electro-hydraulic remote valve (Refer to PRIMARY
HYDRAULIC POWER SYSTEM Electro-hydraulic
remote valve - Hydraulic schema (A.10.C) )
11. Electro-hydraulic remote valve
13. Diverter valve for hydraulic top link and right hand
adjustable link
15. Bottom plate with priority valve
17. Gear pump
19.Low pressure distribution Manifold
2. Front brake valve
4. Filter Manifold
6. Priority valve
8. Italian trailer brake valve manifold
10. Electro-hydraulic remote valve
12. Electro-hydraulic remote valve
14. Electronic draft control valve
16. Resounding Filter (Damper)
18. Filter assembly
20. Suspension valve (Refer to Control valve Hydraulic schema (D.40.C) )
21.Brake lubrication
22. Lubrication
23. Hydrostatic valve
24. Autoguidance valve (Refer to STEERING
Autoguidance - Hydraulic schema (D.20.E) )
25. Fast steer valve (Refer to STEERING Autoguidance 26. Brake master cylinder
- Hydraulic schema (D.20.E) )
27.Cooler
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(1)(2)(3)
indicate connection locations for item (24) (When fitted)
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BAIL10CVT161ASC
1
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Power beyond - Exploded view
BAIL10CVT059FAB
1.
3.
5.
7.
9.
Pressure feed coupler
Seals
Compression spring
Seal
Return coupler
1
2. Power beyond manifold
4. Seal
6. Shuttle valve
8. Seal
10. Load sensing coupler
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Hydraulic pump Variable displacement pump - Dynamic description
The operating principal of a variable flow piston pump is to provide oil flow on demand and minimise the engine power
absorbed in driving the hydraulic pump when the hydraulic circuits do not require maximum pump flow. The variable
flow piston pump in hydraulic systems therefore has distinct power loss advantages over fixed displacement gear type
pumps, which continually provide oil flow and absorb engine power even when the hydraulic circuits do not require
the total pump output.
bsd2188A
1.Stroke Control Piston
3.Swash Plate Return Spring
5.Swash Plate
7.Piston and Barrel (Quantity 9 )
9.Shaft Pre-Load Spring
1
2.Rod
4.Driveshaft
6.Slipper (Quantity 9)
8.Inlet Port
10.Outlet Port
The major components of the variable flow piston pump with closed centre load sensing are :•
A nine element pumping head.
•
A plate mechanism (swash plate) to adjust piston stroke and corresponding pump output.
•
A load sensing valve which monitors the requirements of the hydraulic circuits and signals the pump to increase
or decrease hydraulic oil flow accordingly.
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BSD2023A
2
The nine element pumping head is cylindrical in shape and has nine barrels, into each of which, is installed a
piston (7). On the end of each piston is pressed a slipper (6) which always remains in contact with the face of
the swash plate (5) located at the front of the pumping head.
The drive shaft (4), which is driven by the pump drive gear, rotates the pumping head. As the pumping head
rotates, the pistons move in and out of their barrels, following the contour of the swash plate. For every revolution
of the drive shaft each piston completes one pumping cycle.
The swash plate, which does not rotate but pivots about the front of the pumping head, is the control mechanism
that limits the stroke of each piston and works in conjunction with the pressure and flow compensating valves
in the load sensing line.
As the pumping head rotates each barrel passes over the inlet (8) and then the outlet ports (10) of the pump.
During the inlet cycle for each piston and barrel, oil is pumped into the barrel pushing the piston forward so that
it always remains in contact with the swash plate. The stroke of each piston and volume of oil charged into its
barrel is therefore dependent on the angle of the swash plate.
After a piston and barrel has completed the inlet stroke, further rotation of the head aligns the barrel with the
outlet port. (10) Oil within the barrel is then forcibly ejected by the piston through the exhaust port to the hydraulic
circuits.
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Compensator - Exploded view
BSE3586A_454
1
Flow and Pressure Compensating Valves
1 Plug
3 Disc
5 Spring
7 Housing
9 Spool
11 Plug
13 Seal
15 Damper Screw
17 Seat
19 Spring
21 Seal
23 Nut
25 Locknut
2 Seal
4 Spring
6 Seat
8 Screw
10 Snap-ring
12 Plug
14 Seal
16 Nozzle
18 Spring
20 Disc
22 Plug
24 Screw
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PRIMARY HYDRAULIC POWER SYSTEM - Test Using DATAR
Equipment
WARNING
Escaping fluid!
Hydraulic fluid or diesel fuel leaking under
pressure can penetrate the skin and cause
infection or other injury. To prevent personal
injury: Relieve all pressure before disconnecting fluid lines or performing work on the
hydraulic system. Before applying pressure,
make sure all connections are tight and all
components are in good condition. Never use
your hand to check for suspected leaks under
pressure. Use a piece of cardboard or wood
for this purpose. If injured by leaking fluid, see
your doctor immediately.
Failure to comply could result in death or serious injury.
W0178A
DANGER
Crushing hazard!
Before servicing or repairing machines
equipped with front suspension, always do
the following: Place the keyswitch in the OFF
position. Place the suspension ON/OFF switch
in the OFF position. Fully lower the axle to the
bottom mechanical stop.
Failure to comply will result in death or serious
injury.
D0038A
To determine if the hydraulic system and the various
hydraulic components are working correctly several tests
are required. These can be separated into pressure tests
and flow tests. These tests should be carried out using the
DATAR oscilloscope diagnostics kit connected to the EST.
NOTICE: Before carrying out any pressure or flow testing
operate the tractor until the oil in the rear axle is at normal
operating temperature. 65 °C ( 145 °F).
Steering Priority Valve Test
1.
The following test checks the operation of the steering prioty valve and high pressure circuits.
2.
Remove the cab floor mat.
BAIL07APH389AVA
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1
HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
3.
4.
5.
6.
Remove the cab floor inspection panel.
BTB0445
2
BAIL10CVT613AVA
3
BAIL10CVT614AVA
4
BAIL10CVT607AVA
5
Using special tool 380000573, connect into the steering load sense line.
Connect a DATAR pressure transducer to the
DATARScope interface channel (B).
Install the a DATARScope pressure transducer
to the 3 bar lubrication line and connect to the
DATARScope interface channel (C).
Connect the DATAR flow meter to the rear EHRs.
NOTE: Use two different spool valves to reduce the back
pressure within the flow meter.
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7.
8.
Connect the flow meter pressure port to the
DATARScope interface channel (D) and flow meter
flow port to the DATARScope interface channel (A).
BAIL10CVT608AVB
6
BAIL10CVT611AVA
7
Using DATAR, create a test range for these channels.
•
Collection time = 5 ms/div
•
Channel A = Flow from the EHRs
Setting = 300 LPM
•
Channel B = Steering signal line.
Setting = 300 bar
Transducer setting = 600 bar
•
Channel C = Lubrication line.
Setting = 10 bar
Transducer setting = 60 bar
•
Channel D = Pressure from the EHRs.
Setting = 300 bar
Transducer setting = 600 bar
9.
Start the engine and run until normal operating temperature is reached.
10.
Set the EHR flow control to 100%.
11.
Put remote 1 into the extend position and remote 2
into the float position.
12.
Using the DATAR flow meter apply 60 bar of pressure onto the hydraulic system.
13.
Start the recording on DATAR.
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14.
Turn the steering wheel quickly in the following order
with a 2-3 second delay between each movement.
•
1/2 turn to the right.
•
1/2 turn to the left.
•
Full left-hand lock and hold to the left.
•
Return the steering wheel to the centre.
•
Full right-hand lock and hold to the right.
•
Return the steering wheel to the centre.
15.
Release the pressure from the flow meter and return
the EHRs to the neutral position.
switch off the engine and capture the results.
16.
The results below show the relationship between the
steering signal line (red) and the EHR flow (blue) and
pressure (brown). When the steering wheel is moved
sharply the steering demands hydraulic oil from the
pump (1). Due to the load on the hydraulic oil pump
from the EHRs the oil supply is taken very briefly
from the EHRs (2) and supplied as a priority to the
steering. When the steering wheel is turned slowly,
the hydraulic oil pump can cope with supplying both
systems and therefore pressure and supply from the
EHRs is not affected.
Within the graphic the steering system signal line (3)
is showing that the steering is taking the hydraulic
oil supply as priority from the EHRs (4) for a longer
period of time and then recovering due to the steering
wheel being moved a full turn.
This is a good example of a steering priority valve
which is working correctly.
The lubrication pressure line (green) is showing a response with the steering indicating that it is maintaining the lubrication pressure circuit during the operation of this test.
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BAIL11CVT640FVA
8
Low Pressure Circuit and Accumulator Pressure Test
17.
Using special tool 380000573 (1), connect into the
low pressure line behind the valve stack.
Connect a DATAR pressure transducer to the special tool and connect to the DATARScope interface
channel (A).
BAIL11CVT641AVA
18.
9
Remove the cab floor mat.
BAIL07APH389AVA
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10
HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
19.
20.
21.
22.
Remove the cab floor inspection panel.
BTB0445
11
BAIL10CVT614AVA
12
BAIL10CVT615AVA
13
BAIL10CVT610AVA
14
Install a test port into the 3 bar lubrication line and
connect a DATARScope pressure transducer to the
DATARScope interface channel (C).
Disconnect the hydrostat electrical connector and
remove the hydrostat gear pump pressure switch
transducer.
Install a test port into the gear pump filter pressure
line and connect to a DATARScope pressure transducer.
Connect to the DATARScope interface channel (B).
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23.
Using DATAR, create a test range for these channels.
•
Collection time = 5 ms/div
•
Channel A = Low pressure line.
Setting = 40 bar
Transducer setting = 60 bar
•
Channel B = Filter pressure.
Setting = 40 bar
Transducer setting = 60 bar
•
Channel C = Lubrication line.
Setting = 10 bar
Transducer setting = 60 bar
BAIL10CVT608AVA
24.
Start the recording on DATAR. Start the engine and
run at idle. After a few seconds raise the engine
RPM to maximum. Then after 3-4 seconds, return
the engine RPM back to idle. Run for a further 3-4
seconds and then switch off the engine and capture
the results.
25.
The low pressure (1) at idle should be 24 bar
26.
The lube pressure (3) at idle should be 3 bar
27.
The low pressure, gear pump filter pressure, and
lube pressure all rise (4) when the engine speed is
raised to maximum RPM. This shows the circuit pressure control valves balancing the pressure between
the low pressure and lubrication pressure circuits.
The difference in these pressures will vary depending on the load on the systems from other services,
such as steering.
28.
The result below shows a smooth decay on the low
pressure line (blue line in this example) until the pressure in the low pressure line equalizes with the pressure in the accumulator, then there will be a sudden
drop. The point at which the pressure drops (5) is an
indication of the accumulator pressure.
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BAIL11CVT639FVA
16
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Hydraulic pump Variable displacement pump - Overhaul
This procedure describes the overhaul of the Load Sensed Variable Displacement pump assembly when removed
from the tractor. The following items however can be serviced with the pump installed on the tractor.
Blocked filter dump valve
Pressure and flow compensating valves
Steering flow control valve (Priority valve)
Steering pump assembly
1.
2.
3.
Remove the pump. (Refer to Hydraulic pump Variable displacement pump - Remove (A.10.A))
BAIL08CVT075ASA
1
BSD2023A
2
BAIL08101ASA
3
Remove pressure and flow compensating valves assembly. Refer to Compensator - Overhaul (A.10.A)
Undo the 4 retaining bolts (1) and remove the end
plate. Remove circlip from opposite end of pump.
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4.
5.
6.
7.
Remove the charge pump components from main
pump assembly.
(1) Rotor housing
(2) Rotor
(3) Rotor shaft
(4) End plate
BAIL08CVT102ASA
4
1b0o2004061061
5
70-421-485
6
BSD2025A
7
When replacing the input shaft seal, make sure the
pump housings mounting flange is clean. Use circlip
pliers to remove the input shaft seal retaining ring.
With the retaining ring removed, use a punch or similar tool, and carefully pierce the top of the lip seal.
Using the punch, pry the seal from its bore.
Examine valve plate (1). Check to see if it is scored,
nicked, warped or damaged by cavitation. Look for
score marks or damage around the bearing surface
area. Check the inlet and discharge port area for
signs of contamination. This contamination may
show as grooves starting in the feathering notch,
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
8.
9.
10.
11.
Remove bearing cone (1) and splined connector.
70-421-491
8
TIA35167
9
Remove preload spacer from driveshaft. Remove
pumping head and piston from housing. Using a suitable marker identify each piston and slipper to their
corresponding barrel in the pumping head.
Separate pumping head and slipper assembly and
inspect for damage. Where damage is identified the
pumping element must be replaced.
Pumping head and slipper assembly
(1) Pistons and slippers
(2) Cone
(3) Washer
(4) Pumping head
(5) Pins (quantity 3)
TIA35168
10
BAIL07APH347ASA
11
If necessary disassemble pumping head spring assembly by compressing the retaining ring against the
spring.
Pumping head spring assembly
(1) Washer
(2) Retaining ring
(3) Spring
(4) Pumping head
NOTICE: Due to high spring pressure take care when removing retaining ring.
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12.
Remove swash plate (1) assembly.
Inspect components for wear and replace if damaged
or worn.
70-421-461
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Hydraulic pump Variable displacement pump - Remove
Prior operation:
Battery - Disconnect (A.30.A)
1.
WARNING
Heavy objects!
Lift and handle all heavy components using lifting equipment with adequate capacity. Always support units or parts with
suitable slings or hooks. Make sure the
work area is clear of all bystanders.
Failure to comply could result in death or
serious injury.
W0398A
WARNING
Crushing hazard!
The wheels on this vehicle are very heavy.
Always use a wheel remover or chain
hoists to remove and install the wheels.
Use an assistant as required.
Failure to comply could result in death or
serious injury.
BTB0281A
1
BAIL10CVT507AVA
2
W0149A
Raise the rear of the tractor and place two suitable
axle stands (1) under the final drive cases.
NOTE: If required, detach the lift rods from the lower links.
2.
Using a wheel removal tool, remove the rear righthand wheel.
NOTE: To replace the main hydraulic oil filter, the hydrostat filter must be removed first to gain access to the main
hydraulic oil filter guard retaining bolts.
3.
Using a suitable filter removal tool, remove the hydrostat oil filter.
BAIL10CVT626AVA
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HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
4.
5.
6.
7.
Remove the main hydraulic oil filter housing guard.
BAIL10CVT627AVA
4
BAIL10CVT628AVA
5
BAIL08CVT263AVA
6
BAIL10CVT630AVA
7
Release the air bleed valve (1) and wait a few moments for the oil to drain back to the reservoir.
Remove the main hydraulic oil filter housing drain
plug (2) and drain the oil into a suitable container.
Disconnect the main filter fittings and remove the hydraulic oil filter
Using a suitable filter removal tool, remove the
charge filter.
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