Grizzly Grinder G0757Z Owner's Manual

MODEL G0757Z
VARIABLE-SPEED HORIZONTAL/
VERTICAL MILL w/DRO
OWNER'S MANUAL
(For models manufactured since 02/15)
COPYRIGHT © JULY, 2015 BY GRIZZLY INDUSTRIAL
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#BB17431 PRINTED IN CHINA
V1.07.15
This manual provides critical safety instructions on the proper setup,
operation, maintenance, and service of this machine/tool. Save this
document, refer to it often, and use it to instruct other operators.
Failure to read, understand and follow the instructions in this manual
may result in fire or serious personal injury—including amputation,
electrocution, or death.
The owner of this machine/tool is solely responsible for its safe use.
This responsibility includes but is not limited to proper installation in
a safe environment, personnel training and usage authorization,
proper inspection and maintenance, manual availability and comprehension, application of safety devices, cutting/sanding/grinding tool
integrity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
•
•
•
Lead from lead-based paints.
Crystalline silica from bricks, cement and other masonry products.
Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter
out microscopic particles.
Table of Contents
INTRODUCTION................................................ 2
Contact Info.................................................... 2
Manual Accuracy............................................ 2
Left Front View Identification.......................... 3
Right Front View Identification........................ 4
Controls & Components.................................. 5
Machine Data Sheet....................................... 7
SECTION 1: SAFETY...................................... 10
Safety Instructions for Machinery................. 10
Additional Safety for Milling Machines.......... 12
SECTION 2: POWER SUPPLY....................... 13
SECTION 3: SETUP........................................ 15
Needed for Setup.......................................... 15
Unpacking..................................................... 15
Inventory....................................................... 16
Cleanup......................................................... 17
Site Considerations....................................... 18
Lifting & Placing............................................ 19
Leveling......................................................... 20
Anchoring to Floor........................................ 20
Arbor/Chuck Assembly................................. 21
Verifying Lubrication..................................... 21
Assembly...................................................... 22
Power Connection........................................ 23
Test Run....................................................... 23
Spindle Break-In........................................... 25
Inspections & Adjustments........................... 26
SECTION 4: OPERATIONS............................ 27
Operation Overview...................................... 27
Table Movement........................................... 28
Head Tilt....................................................... 29
Ram Movement............................................ 30
Installing/Removing Tooling.......................... 31
Spindle Speed.............................................. 35
Using Spindle Downfeed Controls................ 37
SECTION 5: ACCESSORIES.......................... 39
SECTION 6: MAINTENANCE.......................... 44
Schedule....................................................... 44
Cleaning & Protecting................................... 44
Lubrication.................................................... 45
Adding/Changing Coolant............................. 51
V-Belt Service............................................... 52
Machine Storage........................................... 54
SECTION 7: SERVICE.................................... 55
Troubleshooting............................................ 55
Tramming Mill Head...................................... 58
Adjusting Leadscrew Backlash..................... 60
Adjusting Gibs............................................... 61
SECTION 8: WIRING....................................... 62
Wiring Safety Instructions............................. 62
Wiring Overview............................................ 63
Component Location..................................... 63
Electrical Panel Wiring Diagram................... 64
Electrical Cabinet Wiring............................... 65
Control Panel Wiring..................................... 66
Vertical Spindle Motor Wiring....................... 67
Horizontal Spindle Motor Wiring................... 67
Coolant Pump Wiring.................................... 68
DRO Wiring................................................... 68
SECTION 9: PARTS........................................ 69
Column.......................................................... 69
Table............................................................. 71
Horizontal Spindle......................................... 73
Vertical Spindle............................................. 75
Vertical Gearbox........................................... 77
Electrical Components.................................. 79
Electrical Components Cont......................... 80
Accessories................................................... 81
Labels & Cosmetics...................................... 82
WARRANTY & RETURNS.............................. 85
INTRODUCTION
Contact Info
Manual Accuracy
We stand behind our machines! If you have questions or need help, contact us with the information
below. Before contacting, make sure you get the
serial number and manufacture date from the
machine ID label. This will help us help you faster.
We are proud to provide a high-quality owner’s
manual with your new machine!
Grizzly Technical Support
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Email: [email protected]
We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: [email protected]
We made every effort to be exact with the instructions, specifications, drawings, and photographs
in this manual. Sometimes we make mistakes, but
our policy of continuous improvement also means
that sometimes the machine you receive is
slightly different than shown in the manual.
If you find this to be the case, and the difference
between the manual and machine leaves you
confused or unsure about something, check our
website for an updated version. We post current
manuals and manual updates for free on our website at www.grizzly.com.
Alternatively, you can call our Technical Support
for help. Before calling, make sure you write down
the Manufacture Date and Serial Number from
the machine ID label (see below). This information
is required for us to provide proper tech support,
and it helps us determine if updated documentation is available for your machine.
Manufacture Date
Serial Number
-2-
Model G0757Z (Mfd. Since 02/15)
Left Front View Identification
Spindle
Motor
Horizontal Arbor
Support
Master
Control Panel
Halogen
Work Light
DRO
Vertical
Spindle
Coolant
Nozzle
X-Axis
Handwheel
Splash
Pan
Electrical
Cabinet
Base
Coolant
Pump
Model G0757Z (Mfd. Since 02/15)
-3-
Right Front View Identification
High/Low
Gear Selector
Coarse
Downfeed
Lever
Fine
Downfeed
Handwheel
Ram
Controls
Horizontal
Spindle
X-Axis
Handwheel
Z-Axis
Crank
X-Axis
Power Feed
Y-Axis
Handwheel
-4-
Model G0757Z (Mfd. Since 02/15)
Controls &
Components
Control Panel
A
B
C
D
G
F
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
E
K
H
Refer to Figures 1–4 and the following descriptions to become familiar with the basic controls
and components of this machine. Understanding
these items and how they work will help you
understand the rest of the manual and stay safe
when operating this machine.
Master Power Switch
I
J
Figure 2. Control panel.
A. Vertical Spindle RPM Readout: Displays
current spindle RPM.
B. FORWARD Button (Vertical Spindle ):
Starts vertical spindle forward rotation (clockwise looking down on headstock).
Spindle rotation direction can ONLY be
changed when spindle is completely
stopped.
Master
Power Switch
Figure 1. Location of master power switch.
Master Power Switch: Enables power to flow to
machine.
):
C. REVERSE Button (Vertical Spindle
Starts vertical spindle reverse rotation (counterclockwise looking down on headstock).
D. STOP Button (Vertical Spindle
vertical spindle rotation.
): Stops
E.
FORWARD Button (Horizontal Spindle ):
Starts horizontal spindle forward rotation (counterclockwise as viewed from front of machine).
F.
REVERSE Button (Horizontal Spindle ):
Starts horizontal spindle reverse rotation (clockwise as viewed from front of machine).
G. STOP Button (Horizontal Spindle
horizontal spindle rotation.
): Stops
H. Variable-Speed Dial: Controls speed of vertical spindle.
Model G0757Z (Mfd. Since 02/15)
-5-
I.
POWER Lamp Button: When pressed, illuminates and enables power to control panel.
E-STOP button must be reset first.
J.
E-STOP Button: Disables power to control
panel and stops all machine functions. To
reset, twist button clockwise until it pops out.
E.
Directional Lever: Selects direction of table
movement. Center position is neutral.
F.
Speed Dial: Controls speed of table movement. Turning dial clockwise causes table to
move faster.
Note: Feed rates for table travel are extremely difficult to precisely calculate. We recommend that you combine research and experimentation to find feed rates that best work for
your operations.
K. Coolant Pump Switch: Starts/stops coolant
pump and flow of coolant.
X-Axis Power Feed
B
A
C
D
H. ON/OFF Switch: Enables/disables power to
unit.
E
I.
F
I
G
G. Reset Button: Resets internal circuit breaker
if unit is overloaded and shuts down.
H
Rapid Traverse Button: Once directional
lever has been activated, causes table to
travel at full speed while pushed.
Headstock
Figure 3. Power feed components.
A. Limit Switch: Stops powered table movement when either side plunger comes in contact with limit stops.
High/Low
Gear Selector
B. Limit Stop: Limits X-axis table travel (one on
either end of table).
C. Graduated Dial: Displays X-axis table movement in 0.001" increments, with each revolution equaling 0.200" of travel.
D. Handwheel: Manually positions table.
-6-
Figure 4. Headstock controls.
High/Low Gear Selector: Selects between high
and low gears on the vertical spindle.
Model G0757Z (Mfd. Since 02/15)
Machine Data Sheet
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G0757Z VARIABLE‐SPEED HORIZONTAL/VERTICAL
MILL WITH DRO
Product Dimensions:
Weight............................................................................................................................................................ 1874 lbs.
Width (side-to-side) x Depth (front-to-back) x Height..................................................................... 53-1/2 x 55 x 82 in.
Footprint (Length x Width)..................................................................................................................... 35-1/2 x 20 in.
Space Required for Full Range of Movement (Width x Depth).................................................................... 76 x 58 in.
Shipping Dimensions:
Type.......................................................................................................................................................... Wood Crate
Content........................................................................................................................................................... Machine
Weight............................................................................................................................................................ 2050 lbs.
Length x Width x Height....................................................................................................................... 53 x 45 x 88 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement........................................................................................................... 220V, Single-Phase, 60 Hz
Full-Load Current Rating....................................................................................................................................... 9.5A
Minimum Circuit Size.............................................................................................................................................. 15A
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length.......................................................................................................................................... 6-1/2 ft.
Power Cord Gauge......................................................................................................................................... 14 AWG
Plug Included........................................................................................................................................................... No
Recommended Plug Type.......................................................................................................................... NEMA 6-15
Switch Type.............................................................................................................. Control Panel with E-Stop Button
Inverter Type............................................................................................................................................ Delta VFD-E
Motors:
Coolant Pump
Type............................................................................................................... TEFC Permanent-Split Capacitor
Horsepower................................................................................................................................................. 40W
Phase............................................................................................................................................ Single-Phase
Amps........................................................................................................................................................... 0.2A
Speed................................................................................................................................................ 2800 RPM
Power Transfer ............................................................................................................................... Direct Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Vertical Spindle
Type................................................................................................................. TEFC Capacitor-Start Induction
Horsepower................................................................................................................................................ 3 HP
Phase.................................................................................................................................................... 3-Phase
Amps........................................................................................................................................................... 9.3A
Speed................................................................................................................................................ 1500 RPM
Power Transfer ................................................................................................................................. Gear Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Model G0757Z
The information contained herein is deemed accurate as of 7/20/2015 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased.
Model G0757Z (Mfd. Since 02/15)
PAGE 1 OF 3
-7-
Horizontal Spindle
Type................................................................................................................. TEFC Capacitor-Start Induction
Horsepower................................................................................................................................................ 2 HP
Phase............................................................................................................................................ Single-Phase
Amps........................................................................................................................................................... 8.6A
Speed................................................................................................................................................ 1725 RPM
Power Transfer ............................................................................................................................... V-Belt Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Main Specifications:
Operation Info
Spindle Travel.............................................................................................................................................. 5 in.
Max Distance Spindle to Column........................................................................................................ 26-3/4 in.
Max Distance Spindle to Table............................................................................................................ 14-1/2 in.
Maximum Distance Horizontal Spindle Center to Table...................................................................... 14-1/8 in.
Longitudinal Table Travel (X-Axis)...................................................................................................... 23-1/2 in.
Cross Table Travel (Y-Axis).................................................................................................................. 8-1/2 in.
Vertical Table Travel (Z-Axis).............................................................................................................. 12-1/2 in.
Table Swivel (Left/Right)........................................................................................................................ 45 deg.
Ram Travel................................................................................................................................................ 11 in.
Turret or Column Swivel (Left /Right)................................................................................................... 180 deg.
Head Tilt (Left/Right).............................................................................................................................. 90 deg.
Drilling Capacity for Cast Iron................................................................................................................ 1-1/8 in.
Drilling Capacity for Steel............................................................................................................................ 1 in.
End Milling Capacity.................................................................................................................................... 1 in.
Face Milling Capacity................................................................................................................................... 4 in.
Table Info
Table Length........................................................................................................................................ 39-3/8 in.
Table Width........................................................................................................................................... 9-1/2 in.
Table Thickness.................................................................................................................................... 2-3/8 in.
Number of T-Slots............................................................................................................................................ 3
T-Slot Size................................................................................................................................................ 5/8 in.
T-Slots Centers............................................................................................................................................ 3 in.
Number of Longitudinal Feeds.............................................................................................................. Variable
X-Axis Table Power Feed Rate................................................................................................... 0 – 11.67 FPM
X/Y-Axis Travel per Handwheel Revolution.......................................................................................... 0.200 in.
Z-Axis Travel per Handwheel Revolution............................................................................................. 0.200 in.
Spindle Info
Spindle Taper............................................................................................................................................... R-8
Range of Vertical Spindle Speeds......................................................................... 100 – 600, 350 – 2000 RPM
Quill Diameter........................................................................................................................................ 3-1/2 in.
Drawbar Thread Size............................................................................................................................. 7/16-20
Drawbar Length............................................................................................................................. 20, 13-3/4 in.
Spindle Bearings.................................................................................................. Tapered Roller Bearings (P5)
Horizontal Spindle Taper.............................................................................................................................. R-8
Number of Horizontal Spindle Speeds............................................................................................................. 8
Range of Horizontal Spindle Speeds......................................................................................... 72 – 1300 RPM
Horizontal Spindle Bearing Type......................................................................... Tapered Roller Bearings (P5)
Construction
Spindle Housing/Quill........................................................................................................... Chromed Cast Iron
Table....................................................................................................................... Precision-Ground Cast Iron
Head.................................................................................................................................................... Cast Iron
Column/Base....................................................................................................................................... Cast Iron
Base..................................................................................................................................................... Cast Iron
Paint Type/Finish.................................................................................................................................... Enamel
Model G0757Z
-8-
The information contained herein is deemed accurate as of 7/20/2015 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased.
PAGE 2 OF 3
Model G0757Z (Mfd. Since 02/15)
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Serial Number Location ..................................................................................................... Machine ID Label on Head
ISO 9001 Factory .................................................................................................................................................. Yes
Features:
Variable-speed spindle control with digital readout for spindle RPMs
Recycling coolant system
Longitudinal power feed
High-precision P5 spindle bearings
Halogen work light
Independent high-CFM motor fan
3-Axis DRO
Accessories Included:
Arbor adapter, R-8 to MT#3
Horizontal arbors w/spacers, 1-1/4" & 1"
1 – 13mm drill chuck w/key & arbor
MT#3 to MT#2 adapter sleeve
T-bolts w/washers & nuts
Service tools & toolbox
Model G0757Z
The information contained herein is deemed accurate as of 7/20/2015 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased.
Model G0757Z (Mfd. Since 02/15)
PAGE 3 OF 3
-9-
SECTION 1: SAFETY
For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
NOTICE
This symbol is used to alert the user to useful information about
proper operation of the machine.
Safety Instructions for Machinery
OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained operators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, disconnect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make workshop kid proof!
DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machinery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
-10-
ELECTRICAL EQUIPMENT INJURY RISKS. You
can be shocked, burned, or killed by touching live
electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.
DISCONNECT POWER FIRST. Always disconnect machine from power supply BEFORE making
adjustments, changing tooling, or servicing machine.
This prevents an injury risk from unintended startup
or contact with live electrical components.
EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.
Model G0757Z (Mfd. Since 02/15)
WEARING PROPER APPAREL. Do not wear
clothing, apparel or jewelry that can become
entangled in moving parts. Always tie back or
cover long hair. Wear non-slip footwear to reduce
risk of slipping and losing control or accidentally
contacting cutting tool or moving parts.
HAZARDOUS DUST. Dust created by machinery
operations may cause cancer, birth defects, or
long-term respiratory damage. Be aware of dust
hazards associated with each workpiece material. Always wear a NIOSH-approved respirator to
reduce your risk.
HEARING PROTECTION. Always wear hearing protection when operating or observing loud
machinery. Extended exposure to this noise
without hearing protection can cause permanent
hearing loss.
REMOVE ADJUSTING TOOLS. Tools left on
machinery can become dangerous projectiles
upon startup. Never leave chuck keys, wrenches,
or any other tools on machine. Always verify
removal before starting!
USE CORRECT TOOL FOR THE JOB. Only use
this tool for its intended purpose—do not force
it or an attachment to do a job for which it was
not designed. Never make unapproved modifications—modifying tool or using it differently than
intended may result in malfunction or mechanical
failure that can lead to personal injury or death!
AWKWARD POSITIONS. Keep proper footing
and balance at all times when operating machine.
Do not overreach! Avoid awkward hand positions
that make workpiece control difficult or increase
the risk of accidental injury.
CHILDREN & BYSTANDERS. Keep children and
bystanders at a safe distance from the work area.
Stop using machine if they become a distraction.
GUARDS & COVERS. Guards and covers reduce
accidental contact with moving parts or flying
debris. Make sure they are properly installed,
undamaged, and working correctly BEFORE
operating machine.
Model G0757Z (Mfd. Since 02/15)
FORCING MACHINERY. Do not force machine.
It will do the job safer and better at the rate for
which it was designed.
NEVER STAND ON MACHINE. Serious injury
may occur if machine is tipped or if the cutting
tool is unintentionally contacted.
STABLE MACHINE. Unexpected movement during operation greatly increases risk of injury or
loss of control. Before starting, verify machine is
stable and mobile base (if used) is locked.
USE RECOMMENDED ACCESSORIES. Consult
this owner’s manual or the manufacturer for recommended accessories. Using improper accessories will increase the risk of serious injury.
UNATTENDED OPERATION. To reduce the
risk of accidental injury, turn machine OFF and
ensure all moving parts completely stop before
walking away. Never leave machine running
while unattended.
MAINTAIN WITH CARE. Follow all maintenance
instructions and lubrication schedules to keep
machine in good working condition. A machine
that is improperly maintained could malfunction,
leading to serious personal injury or death.
DAMAGED PARTS. Regularly inspect machine
for damaged, loose, or mis-adjusted parts—or
any condition that could affect safe operation.
Immediately repair/replace BEFORE operating
machine. For your own safety, DO NOT operate
machine with damaged parts!
MAINTAIN POWER CORDS. When disconnecting cord-connected machines from power, grab
and pull the plug—NOT the cord. Pulling the cord
may damage the wires inside. Do not handle
cord/plug with wet hands. Avoid cord damage by
keeping it away from heated surfaces, high traffic
areas, harsh chemicals, and wet/damp locations.
EXPERIENCING DIFFICULTIES. If at any time
you experience difficulties performing the intended operation, stop using the machine! Contact our
Technical Support at (570) 546-9663.
-11-
Additional Safety for Milling Machines
The primary risks of operating a mill are as follows: You can be seriously injured or killed by
getting clothing, jewelry, or long hair entangled with rotating cutter. You can be severely cut
or have fingers amputated from contact with the rotating cutter. You can be blinded or struck
by broken cutting tools, metal chips, workpieces, or adjustment tools thrown from the rotating
spindle with great force. To reduce your risk of serious injury when operating this machine,
completely heed and understand the following:
UNDERSTAND ALL CONTROLS. Make sure
you understand the function and proper use of all
controls before starting. This will help you avoid
making mistakes that result in serious injury.
WEAR FACE SHIELD. Always wear a face shield
in addition to safety glasses. This provides more
complete protection for your face than safety
glasses alone.
REMOVE CHUCK KEY & SPINDLE TOOLS.
Always remove chuck key, drawbar wrench, and
other tools used on the spindle immediately after
use. This will prevent them from being thrown by
the spindle upon startup.
PROPERLY SECURE CUTTER. Firmly secure
cutting tool or drill bit so it does not fly out of spindle during operation.
USE CORRECT SPINDLE SPEED. Follow recommended speeds and feeds for each size and
type of cutting tool. This helps avoid tool breakage
during operation and ensures best cutting results.
INSPECT CUTTING TOOL. Inspect cutting tools
for sharpness, chips, or cracks before each use.
Replace dull, chipped, or cracked cutting tools
immediately.
ALLOW SPINDLE TO STOP. To minimize your
risk of entanglement, always allow spindle to stop
on its own. DO NOT stop spindle using your hand
or any other object.
-12-
SECURE WORKPIECE TO TABLE. Clamp workpiece to table or secure in a vise mounted to table,
so workpiece cannot unexpectedly shift or spin
during operation. NEVER hold workpiece by hand
during operation.
CLEAN MACHINE SAFELY. Metal chips or shavings can be razor sharp. DO NOT clear chips
by hand or compressed air that can force chips
farther into machine—use a brush or vacuum
instead. Never clear chips while spindle is turning.
PROPERLY MAINTAIN MACHINE. Keep machine
in proper working condition to help ensure that it
functions safely and all guards and other components work as intended. Perform routine inspections and all necessary maintenance. Never operate machine with damaged or worn parts that can
break or result in unexpected movement during
operation.
DISCONNECT POWER FIRST. To reduce risk of
electrocution or injury from unexpected startup,
make sure mill/drill is turned OFF, disconnected
from power, and all moving parts have come to
a complete stop before changing cutting tools or
starting any inspection, adjustment, or maintenance procedure.
POWER DISRUPTION. In the event of a local
power outage during operation, turn spindle switch
OFF to avoid a possible sudden startup once
power is restored.
Model G0757Z (Mfd. Since 02/15)
SECTION 2: POWER SUPPLY
Availability
Circuit Requirements for 220V
Before installing the machine, consider the availability and proximity of the required power supply
circuit. If an existing circuit does not meet the
requirements for this machine, a new circuit must
be installed. To minimize the risk of electrocution,
fire, or equipment damage, installation work and
electrical wiring must be done by an electrican or
qualified service personnel in accordance with all
applicable codes and standards.
This machine is prewired to operate on a 220V
power supply circuit that has a verified ground and
meets the following requirements:
Electrocution, fire, or
equipment damage may
occur if machine is not
correctly grounded and
connected to the power
supply.
Full-Load Current Rating
The full-load current rating is the amperage a
machine draws at 100% of the rated output power.
On machines with multiple motors, this is the
amperage drawn by the largest motor or sum of all
motors and electrical devices that might operate
at one time during normal operations.
Full-Load Current Rating at 220V..... 9.5 Amps
The full-load current is not the maximum amount
of amps that the machine will draw. If the machine
is overloaded, it will draw additional amps beyond
the full-load rating.
Nominal Voltage............................... 220V/240V
Cycle...........................................................60 Hz
Phase..................................................... 1-Phase
Power Supply Circuit.......................... 15 Amps
Plug/Receptacle.............................. NEMA 6-15
A power supply circuit includes all electrical
equipment between the breaker box or fuse panel
in the building and the machine. The power supply circuit used for this machine must be sized to
safely handle the full-load current drawn from the
machine for an extended period of time. (If this
machine is connected to a circuit protected by
fuses, use a time delay fuse marked D.)
For your own safety and protection of
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
Note: The circuit requirements listed in this manual apply to a dedicated circuit—where only one
machine will be running at a time. If this machine
will be connected to a shared circuit where multiple machines will be running at the same time,
consult a qualified electrician to ensure that the
circuit is properly sized for safe operation.
If the machine is overloaded for a sufficient length
of time, damage, overheating, or fire may result—
especially if connected to an undersized circuit.
To reduce the risk of these hazards, avoid overloading the machine during operation and make
sure it is connected to a power supply circuit that
meets the requirements in the following section.
Model G0757Z (Mfg. Since 02/15)
-13-
Grounding Instructions
This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.
The power cord and plug specified under “Circuit
Requirements for 220V” on the previous page
has an equipment-grounding wire and a grounding prong. The plug must only be inserted into
a matching receptacle (outlet) that is properly
installed and grounded in accordance with all
local codes and ordinances (see figure below).
GROUNDED
6-15 RECEPTACLE
Current Carrying Prongs
6-15 PLUG
Grounding Prong
Figure 5. Typical 6-15 plug and receptacle.
Serious injury could occur if you connect
the machine to power before completing the
setup process. DO NOT connect to power
until instructed later in this manual.
Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without yellow
stripes) is the equipment-grounding wire. If repair
or replacement of the power cord or plug is necessary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.
Check with a qualified electrician or service personnel if you do not understand these grounding
requirements, or if you are in doubt about whether
the tool is properly grounded. If you ever notice
that a cord or plug is damaged or worn, disconnect it from power, and immediately replace it with
a new one.
Extension Cords
We do not recommend using an extension cord
with this machine. If you must use an extension
cord, only use it if absolutely necessary and only
on a temporary basis.
Extension cords cause voltage drop, which may
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).
No adapter should be used with the
required plug. If the plug does not fit the
available receptacle, or the machine must
be reconnected for use on a different type
of circuit, the reconnection must be made
by a qualified electrician and comply with all
local codes and ordinances.
-14-
Any extension cord used with this machine must
contain a ground wire, match the required plug
and receptacle, and meet the following requirements:
Minimum Gauge Size............................14 AWG
Maximum Length (Shorter is Better).......50 ft.
Model G0757Z (Mfg. Since 02/15)
SECTION 3: SETUP
Needed for Setup
This machine presents
serious injury hazards
to untrained users. Read
through this entire manual to become familiar with
the controls and operations before starting the
machine!
Wear safety glasses during
the entire setup process!
HEAVY LIFT!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
The following items are needed, but not included,
for the setup/assembly of this machine.
Description
Qty
•
Precision Level............................................ 1
•
Safety Glasses (for each person)................ 1
•
Solvent/Cleaner (Page 17).......................... 1
•
Mineral Spirits.............................. As Needed
•
Wood Block................................................. 1
Disposable Shop Rags................................ 1
•
•
Brass Hammer............................................ 1
Lifting Sling (Rated for at least 2800 lbs.)... 2
•
Lifting Equipment
•
(Rated for at least 2800 lbs.)....................... 1
•
Mounting Hardware (Page 20).... As Needed
Unpacking
Your machine was carefully packaged for safe
transportation. Remove the packaging materials
from around your machine and inspect it. If you
discover any damage, please call us immediately
at (570) 546-9663 for advice.
Save the containers and all packing materials for
possible inspection by the carrier or its agent.
Otherwise, filing a freight claim can be difficult.
When you are completely satisfied with the condition of your shipment, inventory the contents.
SUFFOCATION HAZARD!
Keep children and pets away
from plastic bags or packing
materials shipped with this
machine. Discard immediately.
Model G0757Z (Mfd. Since 02/15)
-15-
Inventory
The following is a list of items shipped with your
machine. Before beginning setup, lay these items
out and inventory them.
If any non-proprietary parts are missing (e.g. a
nut or a washer), we will gladly replace them; or
for the sake of expediency, replacements can be
obtained at your local hardware store.
NOTICE
If you cannot find an item on this list, carefully check around/inside the machine and
packaging materials. Often, these items get
lost in packaging materials while unpacking or they are pre-installed at the factory.
Toolbox (Figure 6)
Qty
A. Handwheel Handles.................................... 3
B. Coarse Downfeed Handle (2 Installed)....... 1
C. Open-End Wrench 22/24mm...................... 1
D. Open-End Wrench 17/19mm....................... 1
E. Drill Chuck B16, 1–13mm............................ 1
—Chuck Key............................................... 1
F. Spindle Sleeve R-8–MT#3.......................... 1
G. Drill Chuck Arbor R-8–B16.......................... 1
H. Spindle Sleeve MT#3–MT#2....................... 1
Wood Crate (Figure 7)
Qty
I. Bottle for Oil................................................ 1
J. Drift Key....................................................... 1
K. End Mill Arbor R-8–1".................................. 1
L. Knee Crank Handle..................................... 1
M. Knee Crank................................................. 1
N. Hardware Bag............................................. 1
—T-Bolts M14-2 x 60................................... 2
—Flat Washers 14mm................................. 2
—Hex Nuts M14-2....................................... 2
—Hex Wrenches 3, 4, 5, 6, 8mm..........1 Ea.
O. Vertical Spindle Drawbar 7⁄ 16"–20 x 20"....... 1
P. Horizontal Spindle Drawbar
7
⁄ 16"–20 x 13 3 ⁄4"............................................. 1
Q. Horizontal Arbor 1 1⁄4" Dia. w/Spacers.......... 1
R. Horizontal Arbor 1" Dia. w/Spacers............. 1
I
J
K
M
L
N
O
P
Q
R
Figure 7. Wood crate inventory.
A
B
C
E
D
F
H
G
Figure 6. Toolbox inventory.
-16-
Model G0757Z (Mfd. Since 02/15)
Cleanup
The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.
Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.
There are many ways to remove this rust preventative, but the following steps work well in a wide
variety of situations. Always follow the manufacturer’s instructions with any cleaning product you
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.
Before cleaning, gather the following:
•
Disposable rags
•
Cleaner/degreaser (WD•40 works well)
•
Safety glasses & disposable gloves
•
Plastic paint scraper (optional)
Basic steps for removing rust preventative:
1.
Put on safety glasses.
2.
Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
for 5–10 minutes.
3.
Wipe off the surfaces. If your cleaner/degreaser is effective, the rust preventative will wipe
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
off the rest with the rag.
4.
Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a quality
metal protectant to prevent rust.
Model G0757Z (Mfd. Since 02/15)
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used to
clean machinery. Avo i d
u sing t h e s e p r o d u c t s
to c l e a n m a c hin e r y.
Many cleaning solvents
are toxic if inhaled. Only
work in a well-ventilated
area.
NOTICE
Avoid chlorine-based solvents, such as
acetone or brake parts cleaner, that may
damage painted surfaces.
T23692—Orange Power Degreaser
A great product for removing the waxy shipping grease from the non-painted parts of the
machine during clean up.
Figure 8. T23692 Orange Power Degreaser.
-17-
Site Considerations
Weight Load
Physical Environment
Refer to the Machine Data Sheet for the weight
of your machine. Make sure that the surface upon
which the machine is placed will bear the weight
of the machine, additional equipment that may be
installed on the machine, and the heaviest workpiece that will be used. Additionally, consider the
weight of the operator and any dynamic loading
that may occur when operating the machine.
The physical environment where the machine is
operated is important for safe operation and longevity of machine components. For best results,
operate this machine in a dry environment that is
free from excessive moisture, hazardous chemicals, airborne abrasives, or extreme conditions.
Extreme conditions for this type of machinery are
generally those where the ambient temperature
range exceeds 41°–104°F; the relative humidity
range exceeds 20–95% (non-condensing); or the
environment is subject to vibration, shocks, or
bumps.
Space Allocation
Consider the largest size of workpiece that will
be processed through this machine and provide
enough space around the machine for adequate
operator material handling or the installation of
auxiliary equipment. With permanent installations,
leave enough space around the machine to open
or remove doors/covers as required by the maintenance and service described in this manual.
See below for required space allocation.
Children or untrained people
may be seriously injured by
this machine. Only install in an
access restricted location.
Electrical Installation
Place this machine near an existing power source.
Make sure all power cords are protected from
traffic, material handling, moisture, chemicals,
or other hazards. Make sure to leave access to
a means of disconnecting the power source or
engaging a lockout/tagout device, if required.
Lighting
Lighting around the machine must be adequate
enough that operations can be performed safely.
Shadows, glare, or strobe effects that may distract
or impede the operator must be eliminated.
Wall
Wall
30"
Minimum
Clearance
30"
Minimum
Clearance
76"
58"
Figure 9. Minimum working clearances.
-18-
Model G0757Z (Mfd. Since 02/15)
Lifting & Placing
Note: After repositioning ram and headstock,
make sure they are locked in place to prevent
unexpected movement while lifting.
4.
HEAVY LIFT!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
Torque four turret lock bolts (two on each
side of ram, as shown in Figure 11) to 47 ft/
lbs. This will help keep ram from unexpectedly moving from force of lifting slings.
Turret Locking Bolts
(2 of 4)
Power lifting equipment rated for at least 50%
more than the weight of the machine and at least
two other people are required to lift and place the
mill.
To lift and move mill:
1.
Remove crate from shipping pallet, then
while still on pallet, move machine to installation location.
2.
Remove horizontal arbor support, and extend
ram so it will clear DRO.
3.
Rotate ram 180° clockwise so headstock
faces backwards (see Figure 10).
Refer to Head Tilt on Page 29 and Ram
Movement on Page 30 for detailed instructions to help with this step.
Figure 11. Locations of turret locking bolts.
5.
Place lifting slings under ram and connect to
a safety hook, as illustrated in Figure 10.
Note: Place protective material between
slings and mill to protect ram and ways, and
to prevent cutting lifting slings.
6.
Unbolt mill from shipping pallet.
7.
With other people steadying load to keep it
from swaying, lift machine a couple of inches.
— If mill tips to one side, lower it to the pallet
and adjust ram or table to balance load.
Make sure to retighten lock levers and
bolts before lifting mill again.
— If mill lifts evenly, remove shipping pallet
and lower mill into final position.
8.
Rotate ram 180° counterclockwise so headstock faces forwards, then re-install horizontal arbor support.
Figure 10. Using lifting slings to lift and move
mill.
Model G0757Z (Mfd. Since 02/15)
-19-
Leveling
Anchoring to Floor
Leveling machinery helps precision components,
such as dovetail ways, remain straight and flat
during the lifespan of the machine. Components
on an unleveled machine may slowly twist due to
the dynamic loads placed on the machine during
operation.
Number of Mounting Holes............................. 4
Diameter of Mounting Hardware.................. 1 ⁄ 2"
For best results, use a precision level that is at
least 12" long and sensitive enough to show a
distinct movement when a 0.003" shim (approximately the thickness of one sheet of standard
newspaper) is placed under one end of the level.
See Figure 12 for an example of a high precision
level available from Grizzly.
Anchoring machinery to the floor prevents tipping
or shifting and reduces vibration that may occur
during operation, resulting in a machine that runs
slightly quieter and feels more solid.
If the machine will be installed in a commercial or
workplace setting, or if it is permanently connected (hardwired) to the power supply, local codes
may require that it be anchored to the floor.
If not required by any local codes, fastening the
machine to the floor is an optional step. If you
choose not to do this with your machine, we recommend placing it on machine mounts, as these
provide an easy method for leveling and they have
vibration-absorbing pads.
Anchoring to Concrete Floors
Figure 12. Example of a precision level
(Model H2683 shown).
Lag shield anchors with lag screws (see below)
are a popular way to anchor machinery to a concrete floor, because the anchors sit flush with the
floor surface, making it easy to unbolt and move
the machine later, if needed. However, anytime
local codes apply, you MUST follow the anchoring
methodology specified by the code.
Lag Screw
Flat Washer
Machine Base
Concrete
Lag Shield Anchor
Drilled Hole
Figure 13. Popular method for anchoring
machinery to a concrete floor.
-20-
Model G0757Z (Mfd. Since 02/15)
Arbor/Chuck
Assembly
An arbor is included for the drill chuck that
comes with this machine. The following procedure
describes how to install the arbor in the chuck.
After the arbor is installed in the drill chuck, it
is very difficult to separate the assembly. If you
would like to use a different chuck in the future,
we recommend obtaining a new arbor.
Important: DO NOT install the drill chuck and
arbor assembly into the spindle until AFTER the
test run.
To join drill chuck and arbor:
1.
Use acetone or lacquer thinner to clean drill
chuck and arbor mating surfaces, especially
the bore.
2.
Retract chuck jaws completely into chuck.
3.
Insert small end of arbor into chuck.
4.
Hold assembly by the arbor and tap chuck
onto a block of wood with medium force, as
illustrated below.
Verifying Lubrication
GEARBOX MUST
BE FILLED WITH OIL!
OIL MAY NOT BE
SHIPPED WITH MACHINE!
Refer to Lubrication Section
for Correct Oil Type.
This machine was shipped from the factory with
oil in it, but the headstock oil reservoir level must
be verified before the mill can be operated for the
first time. Refer to the Lubrication section, beginning on Page 45, for details on how to check oil.
Damage caused by running the mill without
oil in the reservoir will not be covered under
warranty.
Figure 14. Arbor/chuck assembly.
5.
Attempt to separate drill chuck and arbor by
hand—if they separate, repeat Steps 3–4.
Model G0757Z (Mfd. Since 02/15)
-21-
Assembly
Your mill comes from the factory mostly assembled.
To complete assembly you must install:
•
•
•
•
•
X-Axis handwheel handles
Y-Axis handwheel handle
Z-Axis crank
Coarse downfeed handle
Fine downfeed handwheel handle
Tools Needed
Qty
Open-End Wrench 14, 19mm....................... 1 Ea.
Flathead Screwdriver...........................................1
3.
Thread coarse downfeed handle into coarse
downfeed hub (see Figure 17).
4.
Remove fine downfeed handle from rear of
fine downfeed handwheel and thread into
front of handwheel (see Figure 17).
Fine
Downfeed
Handwheel
Coarse
Downfeed Hub
To assemble mill:
1.
Install handwheel handles onto X-axis and
Y-axis handwheels (see Figure 15).
Figure 17. Downfeed components assembeled.
X-Axis
Handwheel
Y-Axis
Handwheel
Figure 15. Locations of X-axis and Y-axis
handwheels.
2.
Slide Z-axis crank onto square spindle (see
Figure 16).
Square
Spindle
Figure 16. Location of square spindle.
-22-
Model G0757Z (Mfd. Since 02/15)
Power Connection
Electrocution or fire can occur
if machine is ungrounded,
incorrectly connected to
power, or connected to an
undersized circuit. Use an
electrician or a qualified service personnel to ensure a
safe power connection.
Before the machine can be connected to the
power supply, there must be an electrical circuit that meets the Circuit Requirements on
Page 13, and the correct plug must be installed
according to the instructions and wiring diagrams
provided by the plug manufacturer.
If the plug manufacturer did not include instructions, the wiring of a generic NEMA 6-15 plug is
illustrated in the Wiring section on Page 63.
To minimize the risk of electrocution, fire, or equipment damage, installation work and electrical wiring MUST be done by an electrician or qualified
service personnel.
Note About Extension Cords: Using an incorrectly sized extension cord may decrease the
life of electrical components on your machine.
Refer to Extension Cords on Page 14 for more
information.
Test Run
Once assembly is complete, test run the machine
to ensure it is properly connected to power and
safety components function properly.
The test run consists of the following: 1) The vertical and horizontal spindle motors run correctly,
2) the E-STOP button and column interlock safety
features work correctly, and 3) the power feed unit
works correctly.
If you find an unusual problem during the test run,
immediately stop the machine, disconnect it from
power, and fix the problem BEFORE operating the
machine again. The Troubleshooting table in the
SERVICE section of this manual can help.
Serious injury or death can result from
using this machine BEFORE understanding
its controls and related safety information.
DO NOT operate, or allow others to operate,
machine until the information is understood.
DO NOT start machine until all preceding
setup instructions have been performed.
Operating an improperly set up machine
may result in malfunction or unexpected results that can lead to serious injury,
death, or machine/property damage.
Mill Test Run
1.
Clear all setup tools away from machine.
2.
Set horizontal spindle to 72 RPM (see Page
35 for details on how to change speeds).
Note: Make sure to close and tighten column
rear cover so interlock switch is set. Mill will
not run if this is not done.
Model G0757Z (Mfd. Since 02/15)
-23-
3.
Push E-STOP button to avoid unexpected
start up when machine is connected to
power.
4.
Connect mill to power source specified in
SECTION 2: POWER SUPPLY on Page 13.
5.
Turn master power switch ON.
6.
Twist E-STOP button clockwise until it pops
out—this resets it for operation (see Figure
18).
TWIST
To Reset
Switch...
Twist Button
Clockwise
OFF
7.
8.
9.
10. Stop spindle rotation and wait for spindle to
completely stop.
11. Repeat Steps 8–10 with vertical spindle
reverse rotation.
12. Repeat Steps 8–11 with horizontal spindle.
13. Press E-STOP button on control panel.
14. WITHOUT resetting E-STOP button, attempt
to start vertical spindle rotation. Machine
should not start.
— If machine does start (with the E-STOP
button pushed in), immediately disconnect
power to the machine. The E-STOP button safety feature is not working correctly.
This safety feature must work properly
before proceeding with regular operations.
Call Tech Support for help.
Figure 18. Resetting the E-STOP button.
15. Open column rear cover.
Press POWER button on control panel to
enable power to machine—power button and
spindle RPM readout should light.
16. Reset E-STOP button.
Turn variable-speed dial fully counterclockwise, then press FORWARD button (vertical
spindle). Rotate variable-speed dial clockwise until 100 RPM is reached.
Listen for abnormal noises and watch for
anything unexpected from mill. It should run
smoothly and without excessive vibration or
rubbing noises.
— Vertical spindle motor is equipped with an
independent high CFM fan that is always
on, and a variable frequency drive which
causes the motor to emit a humming noise
during normal operation.
17. WITHOUT closing column rear cover, press
POWER button. Machine should not start.
— If machine does start (with the column
rear cover open), immediately disconnect
power to the machine. The column rear
cover interlock switch safety feature is
not working correctly. This safety feature
must work properly before proceeding with
regular operations. Call Tech Support for
help.
18. Close column rear cover, and fully tighten
bolt.
— Strange or unusual noises or actions
must be investigated immediately. Turn
machine OFF and disconnect it from the
power source before investigating or correcting potential problems.
-24-
Model G0757Z (Mfd. Since 02/15)
Spindle Break-In
Power Feed Test Run
The mill comes with a power feed unit for X-axis
table travel. Proper operation of the limit switch
attached to the front middle of the table is critical for the safe use of this power feed unit. If the
power feed does not operate as expected during
the following steps, disconnect it from power and
contact our Tech Support at (570) 546-9663 for
assistance.
To test power feed:
1.
Make sure all tools, cables, and other items
are well clear of table movement as you follow these steps.
2.
Refer to X-axis Power Feed identification on
Page 6 to understand how power feed, table
locks, and limit switch function.
3.
Loosen X-axis table locks on front of table.
4.
Make sure power feed directional lever is
in neutral (middle) position, turn speed dial
counterclockwise to lowest setting, then turn
power feed ON.
5.
Move direction knob to left, slowly rotate
speed dial clockwise to increase speed, then
confirm table is moving left.
6.
Watch for table limit stop to hit limit switch
and turn power feed OFF, stopping table
movement.
7.
Move direction knob through neutral (middle)
position and all the way right. Table should
begin moving right.
8.
Confirm table stops moving when limit stop
presses against limit switch plunger.
9.
Move direction knob to neutral (middle) position, turn speed dial counterclockwise to lowest setting, and turn power feed OFF.
Congratulations! The Test Run of the mill is
complete. Continue to the next page to perform the Spindle Break-In and Inspections &
Adjustments procedures.
Model G0757Z (Mfd. Since 02/15)
The spindle break-in procedure distributes lubrication throughout the bearings to reduce the risk
of early bearing failure if there are any "dry" spots
or areas where lubrication has settled in the bearings. You must complete this procedure before
placing operational loads on the spindle for the
first time when the machine is new or if it has
been sitting idle for longer than 6 months.
Always start the spindle break-in at the lowest
speed to minimize wear if there are dry spots.
Allow the spindle to run long enough to warm up
and distribute the bearing grease, then incrementally increase spindle speeds and repeat this process at each speed until reaching the maximum
spindle speed. Following the break-in procedure
in this progressive manner helps minimize any
potential wear that could occur before lubrication
is fully distributed.
Complete spindle bearing break-in procedure to prevent rapid wear and tear of
spindle components once mill is placed into
operation.
DO NOT perform this procedure independently of Test Run section. Mill could be
seriously damaged if controls are set differently than instructed in that section.
Vertical Spindle Break-In
1.
Run vertical spindle at 100 RPM for 10
minutes (see Page 35 for details on how to
change speeds).
2.
Reverse spindle rotation direction and run
spindle for an additional 10 minutes.
3.
Run spindle for 5 minutes in each direction of
spindle rotation at the following speeds: 250,
500, 1000, 1500, and 2000 RPM. Make sure
to only increase speeds in the order shown.
-25-
Inspections &
Adjustments
Horizontal Spindle Break-In
1.
Run horizontal spindle at 72 RPM for 10
minutes (see Page 35 for details on how to
change speeds).
2.
Reverse spindle rotation direction and run
spindle for an additional 10 minutes.
The following list of adjustments were performed
at the factory before the machine was shipped:
3.
Run spindle for 5 minutes in each direction
of spindle rotation. Run following speeds:
210, 550 and 1300 RPM. Make sure to only
increase speeds in the order shown.
•
•
Congratulations! Spindle Break-In is complete.
We recommend changing the headstock oil
before operating the machine further (refer to
Lubrication on Page 46.
X-Axis Leadscrew Backlash............ Page 60
Gib Adjustments...............................Page 61
Be aware that machine components can shift
during the shipping process. Pay careful attention to these adjustments during operation of the
machine. If you find that the adjustments are not
set according to the procedures in this manual or
your personal preferences, re-adjust them.
Since the head has been moved around for
shipping purposes, you will need to tram it
so that the spindle is perpendicular to the
table. Refer to the Tramming Spindle section on Page 58 for detailed instructions.
During the first 16 hours of use, the V-belts
will stretch and seat into the pulley grooves.
The V-belts must be properly tensioned
after this period to ensure proper power
transmission and avoid reducing the life of
the belts. Refer to V-Belt Service on Page 52
for detailed instructions.
-26-
Model G0757Z (Mfd. Since 02/15)
SECTION 4: OPERATIONS
Operation Overview
The purpose of this overview is to provide the novice machine operator with a basic understanding
of how the machine is used during operation, so
the machine controls/components discussed later
in this manual are easier to understand.
Due to the generic nature of this overview, it is
not intended to be an instructional guide. To learn
more about specific operations, read this entire
manual and seek additional training from experienced machine operators, and do additional
research outside of this manual by reading "howto" books, trade magazines, or websites.
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
To reduce risk of eye or face injury from
flying chips, always wear approved safety
glasses and a face shield when operating
this machine.
To complete a typical operation, the operator
does the following:
1.
Examines workpiece to make sure it is suitable for operation.
2.
Firmly clamps workpiece to table or a mill
vise.
3.
Installs correct cutting tool for operation.
4.
Uses downfeed and table controls to correctly position cutting tool and workpiece for
operation. If X-axis power feed will be used
during operation, operator confirms speed
and length of table movement required.
5.
Configures machine for correct spindle speed
of operation.
6.
Puts on personal protective gear, and makes
sure workpiece and table are clear of all
tools, cords, and other items.
7.
Turns machine ON, then starts spindle rotation and performs operation.
8.
Turns machine OFF.
If you are not experienced with this type
of machine, WE STRONGLY RECOMMEND
that you seek additional training outside of
this manual. Read books/magazines or get
formal training before beginning any projects. Regardless of the content in this section, Grizzly Industrial will not be held liable
for accidents caused by lack of training.
Model G0757Z (Mfd. Since 02/15)
-27-
Table Movement
The table travels in three directions, as illustrated
in Figure 19.
These movements are controlled by table
handwheels and the Z-axis crank. Additionally,
the table can be moved along the X-axis with
the power feed and manually rotated 45° left and
right.
X-Axis or Longitudinal Travel
(Left & Right)
Y-Axis or
Cross Travel
(In & Out)
Z-Axis or
Vertical Elevation
(Up & Down)
Figure 19. The directions of table movement.
Graduated Index Rings
The table handwheels and Z-axis crank have
graduated rings (see Figure 20) that are used to
determine table movement in 0.001" increments
with one full revolution equaling 0.200" of travel.
Additionally, each dial has a thumbscrew that is
used to adjust the dial to zero.
Graduated
Rings
Table Locks
Use table locks to increase the rigidity of the table
when movement in that axis is not required for the
operation.
Refer to Figure 21 to identify the locks for each
table axis.
Limit Stops
Use limit stops in conjunction with the powerfeed
to set the total amount of travel. The limit stops
come into contact with the limit switch and stop
powerfeed motion.
Refer to Figure 21 to identify the limit stops.
X-Axis Locks
Z-Axis
Locks
Limit Stop
Y-Axis
Locks
Figure 21. Locations of table locks.
Always keep table locked in place unless
table movement is required for your operation. Unexpected table and workpiece
movement could cause tooling to bind with
workpiece, which may damage tooling or
workpiece.
Figure 20. Locations of graduated rings.
-28-
Model G0757Z (Mfd. Since 02/15)
Head Tilt
Table Rotation
The table rotates 45° left or right (see Figure 22).
Hex Nuts
(2 of 4)
Table
Knee
Figure 22. Table rotated 45° to the right.
Tool Needed
Qty
Open-End Wrench 19mm................................... 1
To rotate table:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove as many items from table as possible. This makes rotating table easier.
3.
Loosen four hex nuts that secure table to
knee (see Figure 22).
The head tilts 90° left or right at the end of the
ram.
When positioning head back to 0° after
tilting it, you will need to tram it to ensure
spindle is precisely perpendicular to table
to ensure proper milling accuracy. Refer to
Tramming Spindle section on Page 58 for
detailed instructions.
Tools Needed
Qty
Open-End Wrench 19mm................................... 1
Open-End Wrench 24mm................................... 1
To tilt head:
1.
DISCONNECT MACHINE FROM POWER!
2.
Loosen three hex nuts (one on each side of
head and one underneath) that secure head
to ram (see Figure 23).
Scale
Note: There are two additional hex nuts
behind table.
4.
Using angle scale on table knee as a guide,
rotate table to desired position.
5.
Retighten four hex nuts that secure table to
knee before resuming operation.
Tilting
Bolt
Hex Nut
(1 of 3)
Figure 23. Head tilting controls.
3.
With assistance from another person to support head, turn tilting bolt until head is in
desired position.
Note: Use angle scale shown in Figure 23 as
a guide for setting tilt angle.
4.
Model G0757Z (Mfd. Since 02/15)
Retighten hex nuts that secure head to ram
before resuming operation.
-29-
Ram Movement
The ram travels forward/backward 11" and rotates
180° on the turret.
Rotating Ram On Turret
1.
DISCONNECT MACHINE FROM POWER!
2.
Loosen four hex nuts (two on each side of
ram) that secure ram to turret (see Figure 25).
Tools Needed
Qty
Open-End Wrench 15mm................................... 1
Open-End Wrench 24mm................................... 1
Horizontal
Arbor Support
Hex Nuts
(2 of 4)
Moving Ram Forward/Backward
1.
DISCONNECT MACHINE FROM POWER!
2.
Loosen two lock handles shown in Figure 24.
Figure 25. Ram rotation hex nuts.
Lock Handles
3.
— If rotating ram 180 degrees, horizontal
arbor support must be removed to provide
clearance for control panel and DRO (see
Figure 25).
Pinion Gear Bolt
Figure 24. Ram back-and-forth controls.
3.
Rotate pinion gear bolt to move ram until
spindle is in desired position.
4.
Retighten lock handles to secure ram movement before resuming operation.
-30-
Make sure that cables and hoses are not
entangled or stretched, and that work lamp
and DRO are clear of rotation path as you
move ram on turret.
4.
Retighten four hex nuts that secure ram on
turret before resuming operation.
Model G0757Z (Mfd. Since 02/15)
Installing/Removing
Tooling
Tools Needed
Qty
Open-End Wrench 19mm................................... 1
Brass Hammer................................................... 1
Installing Vertical Spindle Tooling
Vertical Spindle
1.
DISCONNECT MACHINE FROM POWER!
Tooling is held in the vertical spindle by a combination of the R-8 taper, a pin inside the spindle,
and a 7⁄ 16"-20 drawbar.
2.
Clean any debris or surface substances from
inside spindle taper and mating surface of
tooling.
The Model G0757Z includes the following vertical
spindle tools (see Figure 28):
Note: Debris or oily substances can prevent
tooling and spindle from properly mating.
This condition can cause excessive vibration,
poor cutting results, or tool/workpiece damage.
A. B16 Drill Chuck w/R-8–B16 Arbor. Refer to
Arbor/Chuck Assembly on Page 21.
B. R-8–MT#3 Spindle Sleeve. Used for MT#3
tools and will accommodate tools with a tang.
It also has a drift key slot for tool removal.
C. MT#3–MT#2 Spindle Sleeve. Used for MT#2
tools and will accommodate tools with a tang.
It also has a drift key slot for tool removal.
D. R-8–1" End Mill Arbor. Arbor accepts 1"
bore mill cutters.
3.
Align tooling keyway with pin inside spindle
taper, then firmly push tooling into spindle to
seat it.
Cutting tools are sharp and can easily
cause laceration injuries. Use heavy leather
gloves or shop rags to protect your hands
when handling cutting tools.
Drift Key: Use for tool removal.
E.
A
B
C
D
E
Tang
Drift Key Slot
Figure 26. Vertical spindle tools included with
model G0757Z.
Model G0757Z (Mfd. Since 02/15)
-31-
4.
With one hand holding tooling in place, insert
vertical drawbar (longer of two drawbars) into
spindle from top of head, then thread it into
tooling (see Figure 27).
Note: Drawbar has an adjustment hex nut
(see Figure 27) that is used to raise/lower
drawbar to compensate for different tooling
lengths.
Vertical
Drawbar
Adjustment
Hex Nut
Installing
Tooling
Horizontal
Spindle
&
Single or multiple cutters (gang milling) can be
arranged anywhere along the length of the arbor
for simple to very complex cutting operations.
The Model G0757Z includes the following horizontal spindle tools (see Figure 28):
A. 1 1⁄4" Dia. Horizontal Arbor w/Spacers. Used
for horizontal milling operations with 11⁄4" bore
cutters.
B. 1" Dia. Horizontal Arbor w/Spacers. Used
for horizontal milling operations with 1" bore
cutters.
A
Figure 27. Vertical drawbar inserted in spindle.
5.
Tighten drawbar until it is snug. Avoid overtightening, as this could make removing tooling difficult later.
Removing Vertical Spindle Tooling
1.
B
DISCONNECT MACHINE FROM POWER!
Figure 28. Horizontal arbors included with
G0757Z.
Note: Make sure drawbar has at least three
threads engaged with tooling in next step to
avoid damaging drawbar threads or tool.
2.
Loosen drawbar a couple of turns, then tap
top of it with a brass hammer to knock taper
between spindle and tooling loose.
3.
Support tooling with one hand, then completely unthread drawbar from tooling.
-32-
Model G0757Z (Mfd. Since 02/15)
Tools Needed
Qty
Open-End Wrench 19mm................................... 1
Open-End Wrench 24mm................................... 2
Open-End Wrench 32mm................................... 1
Brass Hammer................................................... 1
To install horizontal tooling:
1. DISCONNECT MACHINE FROM POWER!
2.
Loosen locking bolt on side of arbor support,
and slide support off ram dovetail way (see
Figure 29).
Ram Rotation
Hex Nuts (2 of 4)
4.
Extend ram all the way forward.
5.
Open column rear cover to gain access to
rear of horizontal spindle.
Note: Opening the column rear cover activates interlock safety switch.
6.
Clean any debris or surface substances from
inside spindle taper and mating surface of
arbor.
7.
Align keyway of arbor with protruding pin
inside spindle taper, then firmly push arbor
into spindle to seat it (see Figure 30).
8.
With one hand holding arbor in place, insert
horizontal drawbar (shorter of two drawbars)
into spindle from rear of column, then thread
it into arbor.
9.
Tighten drawbar until it is snug. Avoid overtightening, as this could make removing arbor
difficult later.
Locking Bolt
Horizontal
Arbor Support
Figure 29. Horizontal arbor support, locking bolt,
and ram rotation hex nut locations.
3.
Loosen ram rotation hex nuts (Figure 29),
then rotate ram 180°, as shown in Figure 30.
Cutting tools are sharp and can easily
cause laceration injuries. Use heavy leather
gloves or shop rags to protect your hands
when handling cutting tools.
Note: Make sure "0" marks on ram base and
angle scale are aligned and four ram rotation
hex nuts are retightened.
Arbor
Horizontal
Spindle
Figure 30. Horizontal arbor seated in spindle
with ram fully extended and rotated 180 degrees.
Model G0757Z (Mfd. Since 02/15)
-33-
10. Add ISO 68 oil or equivalent to horizontal
spindle and arbor support ball oilers (refer to
Ball Oilers, beginning on Page 47).
11. Install cutter(s) and spacers on arbor in such
a way that last spacer is inside brass bushing
and arbor threads are fully exposed as you
slide arbor support back onto ram dovetail
ways (see Figure 31).
12. Secure arbor support by retightening support
locking bolt.
Removing Horizontal Spindle Tooling
1.
DISCONNECT MACHINE FROM POWER!
2.
Open column rear cover to gain access to
rear of horizontal spindle.
Note: Opening the column rear cover activates interlock safety switch.
3.
Note: Make sure drawbar has at least three
threads engaged with arbor in next step to
avoid damaging drawbar threads or arbor.
13. Secure arbor assembly with right-hand arbor
nut (see Figure 31).
Brass
Bushing
Tooling
Right-Hand
Arbor Nut
Figure 31. Horizontal arbor and cutter installed.
14. Close and secure column rear cover.
Remove arbor nut from arbor, then remove
arbor support from ram dovetail ways.
4.
Loosen drawbar a couple of turns. Then tap
end of drawbar with a brass hammer to knock
taper loose between spindle and arbor.
5.
Support arbor with one hand, then completely
unthread drawbar from arbor.
6.
Remove arbor.
7.
Re-install arbor support and properly position
and secure ram for next operation.
8.
Close and secure column rear cover.
Note: Failure to secure the column rear cover
will leave interlock active, and mill will not run.
Note: Failure to secure the column rear cover
will leave interlock active, and mill will not run.
-34-
Model G0757Z (Mfd. Since 02/15)
Spindle Speed
Cutting Speeds for High Speed Steel (HSS)
Cutting Tools
Workpiece Material
Using the correct spindle speed is important for
safe and satisfactory results, as well as maximizing tool life.
To set the spindle speed for your operation, you
will need to: (1) Determine the best spindle speed
for the cutting task, and (2) configure the mill controls to match the closest spindle speed.
Determining Spindle Speed
Many variables affect the optimum spindle speed
to use for any given operation, but the two most
important are the recommended cutting speed for
the workpiece material and the diameter of the
cutting tool, as noted in Figure 32:
*Recommended
Cutting Speed (FPM) x 12
Tool Diameter (in inches) x 3.14
= RPM
*Double if using carbide cutting tool
Figure 32. Spindle speed formula for milling.
Cutting Speed (sfm)
Aluminum & Aluminum Alloys
300
Brass & Bronze
150
Copper
100
Cast Iron, soft
80
Cast Iron, hard
50
Mild Steel
90
Cast Steel
80
Alloy Steel, hard
40
Tool Steel
50
Stainless Steel
60
Titanium
50
Plastics
300-800
Wood
300-500
Note: For carbide cutting tools, double the cutting speed. These values are a guideline only.
Refer to the MACHINERY'S HANDBOOK for
more detailed information.
Figure 33. Cutting speed table.
To avoid damaging the spindle, gears, or
cutting tools when setting the spindle speed
range:
Cutting speed, typically defined in feet per minute
(FPM), is the speed at which the edge of a tool
moves across the material surface.
• Spindle rotation must be turned OFF and
the spindle must be at a complete stop
BEFORE you change the spindle speed
range.
A recommended cutting speed is an ideal speed
for cutting a type of material in order to produce
the desired finish and optimize tool life.
• To avoid damaging the moving parts
inside the headstock, never start spindle
rotation without the range selector detent
pin firmly seated in either the high or low
position.
The books Machinery’s Handbook or Machine
Shop Practice, and some internet sites, provide excellent recommendations for which cutting
speeds to use when calculating the spindle speed.
These sources also provide a wealth of additional
information about the variables that affect cutting
speed and are a good educational resource.
• When the spindle speed range is changed,
the spindle rotation direction reverses.
You will need to either change the cutting
tool to match the direction of spindle rotation or use the spindle direction switch to
compensate for the reversal.
Also, there are a large number of easy-to-use
spindle speed calculators that can be found on
the internet. These sources will help you take into
account all applicable variables to determine the
best spindle speed for the operation.
Model G0757Z (Mfd. Since 02/15)
-35-
Setting Vertical Spindle Speed
Setting Horizontal Spindle Speed
1.
Tools Needed
Qty
Open-End Wrench 24mm................................... 1
Dead Blow Hammer........................................... 1
Hex Wrench 8mm............................................... 1
Select appropriate speed range using high/
low gear selector (see Figure 34).
"L" represents low speed range, which is
capable of spindle speeds from 100–600
RPM. "H" represents high range, which maximizes spindle torque and is capable of spindle speeds from 350–2000 RPM.
To set horizontal spindle speed:
1.
DISCONNECT MACHINE FROM POWER!
2.
Open column rear cover to gain access to
horizontal spindle V-belts and pulleys, as
shown in Figure 36.
Figure 34. High/Low gear selector in "L"
position.
Hex Nut
Behind Bracket
Lower
Idler
Pulley
Note: It may be necessary to rotate vertical
spindle by hand to enable gears to mesh
properly.
2.
Rotate variable-speed dial fully counterclockwise (slowest), then press power button
and use vertical spindle direction buttons to
choose direction of spindle travel and start
spindle rotation (see Figure 35).
RPM Readout
Tension
Thumbwheel
Figure 36. Horizontal spindle V-belts and pulleys
(cover removed for photo clarity).
Vertical Spindle
Direction Buttons
Power
Button
Variable-Speed Dial
3.
Loosen tension thumb wheel and hex nut
behind lower idler pulley bracket.
4.
Move lower idler pulley to right to release
V-belt tension.
Note: You may have to bump lower idler pulley with dead blow hammer to get it to move.
Figure 35. Controls to adjust spindle speed.
3.
-36-
Watching vertical spindle RPM readout,
rotate variable-speed dial until desired RPM
is reached.
Model G0757Z (Mfd. Since 02/15)
5.
Arrange V-belts for desired horizontal spindle
speed (see Figure 37).
Note: Horizontal spindle speed chart shown
below is also on side of column.
Horizontal Spindle Speeds
RPM
72
170
210
240
290
550
830
1300
A–G
B–G
C–G
A–F
A–E
B–F
C–E
B–D
Upper
G
D
FE
CB
Use Figure 39 and the descriptions below to
understand the downfeed components that control the 5" spindle downfeed travel.
Fine
Downfeed
Handwheel
Selection
Lever
A
Motor
Figure 37. Horizontal spindle speed chart.
6.
Using Spindle
Downfeed Controls
Apply pressure on lower idler pulley to left as
you tighten tension thumbwheel.
Note: There is proper V-belt tension when
approximately 1⁄4" –1⁄2" deflection is achieved
by applying moderate pressure midway
between pulleys as shown in Figure 38.
Pulley
⁄4"–1⁄2"
Deflection
1
Pulley
Figure 38. Checking V-belt tension.
7.
Retighten hex nut behind lower idler pulley
bracket.
8.
Close and latch V-belt cover.
Model G0757Z (Mfd. Since 02/15)
Quill
Lock
Coarse
Downfeed Lever
Figure 39. Spindle downfeed controls.
Coarse Downfeed Levers: Manually control
downfeed travel in a rapid manner. Generally
used for drilling operations. Spindle automatically
returns to top position when pressure is released
from the handle.
Fine Downfeed Handwheel: Manually controls
downfeed travel in a slow, precise manner. Unlike
coarse downfeed, spindle does not automatically
retract. The attached graduated dial has increments of 0.001" with one full revolution representing 0.100" of travel. Generally used for milling
operations.
Selection Lever: When tightened, enables the
fine downfeed handwheel; conversely, when loosened enables the coarse downfeed levers.
Quill Lock: Secures the quill in place for increased
stability during milling operations.
-37-
Coarse Downfeed
Fine Downfeed
When coarse downfeed is engaged, pull coarse
downfeed levers to lower the spindle. An internal
coil spring helps raise the spindle up when you
stop applying downward pressure on the lever.
When fine downfeed is engaged the spindle only
moves up or down when the handwheel is rotated
(there is no automatic spindle return to the top
position, as with the coarse downfeed controls).
This level of control allows the spindle height to be
locked in place with quill lock when milling a flat
surface across the face of a workpiece. In order to
ensure the milled surface remains flat, the spindle
height cannot move until the entire milling operation is complete.
Note: To maintain control of the upward spindle
travel and the rotating bit in your workpiece,
always continue holding the lever until the spindle
returns to the top position. Letting go of the coarse
downfeed levers when the spindle is in the lowered position will cause the spindle to retract too
quickly and slam up into the headstock or lift the
workpiece and cause it to spin out of control.
The coarse downfeed hub features a graduated
dial that measures spindle movement in 1" increments, with one full revolution equaling 5.00" of
spindle travel.
-38-
The graduated dial on the fine downfeed handle
measures spindle movement in 0.010" increments, with one full revolution equaling 0.100" of
spindle travel.
Using Fine Downfeed Controls
In the following example, the fine downfeed
controls are used to mill 0.010" off a workpiece:
1.
Use Z-axis crank to adjust workpiece surface
just below cutting tool, then secure the headstock with Z-axis lock levers.
2.
Tighten selection lever to engage fine
downfeed handwheel.
3.
Loosen quill lock.
4.
Rotate fine downfeed handwheel clockwise
and lower cutting tool so it just touches
workpiece.
5.
Move workpiece out of the way.
6.
Using graduated dial to gauge spindle movement, rotate fine downfeed handwheel clockwise 0.010".
7.
Tighten quill lock.
8.
Turn mill ON and perform cutting pass.
Model G0757Z (Mfd. Since 02/15)
ACCESSORIES
SECTION 5: ACCESSORIES
Installing unapproved accessories may
cause machine to malfunction, resulting in
serious personal injury or machine damage.
To reduce this risk, only install accessories
recommended for this machine by Grizzly.
NOTICE
T23962—ISO 68 Moly-D Way Oil, 5 Gal.
T23963—ISO 32 Moly-D Machine Oil, 5 Gal.
T26685—ISO 32 Moly-D Machine Oil, 1 Gal.
Moly-D oils are some of the best we've found for
maintaining the critical components of machinery
because they tend to resist run-off and maintain
their lubricity under a variety of conditions—as
well as reduce chatter or slip. Buy in bulk and
save with 1- or 5-gallon quantities.
Refer to our website or latest catalog for
additional recommended accessories.
T23964—Armor Plate with Moly-D MultiPurpose Grease, 14.5 oz. (NLGI#2 Equivalent)
Armor Plate with Moly-D is a rich green moly
grease that provides excellent stability and unsurpassed performance under a wide range of temperatures and operating conditions. Armor Plate
grease is entirely unique due to the fact that the
moly in it is solubilized, which provides superior performance to other greases containing the
black solid form of molybdenum disulfide.
Figure 40. T23964 Armor Plate with Moly-D
Multi-Purpose Grease.
T23962
T23963
T26685
Figure 41. ISO 68 and ISO 32 machine oil.
H7615—High Pressure Oil Can, 5 Oz.
Whether you're lubricating cutting tools or maintaining machinery in top operating condition, you'll
appreciate this High Pressure Oil Can. Holds 5
ounces of oil and has a trigger activated, high
pressure pump. Colors may vary.
Figure 42. H7615 High Pressure Oil Can.
order online at www.grizzly.com or call 1-800-523-4777
Model G0757Z (Mfd. Since 02/15)
-39-
G1075—52-Pc. Clamping Kit
This clamping kit includes 24 studs, 6 step block
pairs, 6 T-nuts, 6 flange nuts, 4 coupling nuts, and
6 end hold-downs. The rack is slotted so it can be
mounted close to the machine for easy access.
Made for 1⁄ 2" T-slots.
T25702— 5-Pc. R-8 End Mill Holder Set
Hold various sized end mills in your R-8 spindle
with this End Mill Holder Set. Includes holders for
3
⁄ 16", 3 ⁄ 8", 1⁄ 2", 5 ⁄ 8", and 3 ⁄4" end mills.
Figure 43. G1075 Clamping Kit.
T10168—3" Boring Head Set
This all-inclusive set features a precision 3" boring
head, R-8 shank, five-piece set of 3 ⁄4" carbidetipped boring bars, five-piece set of 1⁄ 2" HSS boring bars, 1⁄ 2" to 3 ⁄4" adapter, wrenches, and fitted
case.
Figure 45. T25702 5-Pc. R-8 End Mill Holder
Set.
T26688—8-Pc. R-8 Quick Change Collet Set
These collets are hardened and ground for maximum holding power and ultra precision. Threaded
for 7/16"-20 draw bars, this set has a maximum
runout of 0.001". Set includes collect chuck, 1⁄4",
5
⁄ 16", 3 ⁄ 8", 1⁄ 2", 5 ⁄ 8", 3 ⁄4", and 1" collets, spanner
wrench, and moulded plastic case.
Figure 44. T10168 3" Boring Head Set.
Figure 46. T26688 Quick Change Collet Set.
-40-
Model G0757Z (Mfd. Since 02/15)
G9756—20-Pc. HSS End Mill Set
This High Speed Steel set features 2 flute and 4
flute end cutting end mills in the following sizes:
3
⁄ 16", 1⁄4", 5 ⁄ 16", 3 ⁄ 8", 7⁄ 16", 1⁄ 2", 9 ⁄ 16", 5 ⁄ 8", 11⁄ 16" and 3 ⁄4".
Sizes are marked in a durable molded case.
H5935—3-Pc. Fly Cutter Set w/Tool Bits 1/2"
Here is a 3-pc. Fly Cutter Set that's hard to beat!
Each is supplied with black oxide finish, a setscrew flat and a blank high speed steel tool.
Figure 47. G9756 20-Pc. HSS End Mill Set.
Figure 49. H5935 3-Pc. Fly Cutter Set.
G9760—20-Pc. 2 & 4 Flute TiN End Mill Set
Includes these sizes and styles in two and four
flute styles: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/8",
11
/16", and 3/4".
T10390—R-8 Holder for T10388
T10388—4" Milling Cutter
H8323— 4" Face Mill Cutter
T10390
H8323
T10388
Figure 48. G9760 20-Pc End Mill Set.
Figure 50. Assortment of cutting tools and
holder.
Model G0757Z (Mfd. Since 02/15)
-41-
G7066— 5" Tilting/Swiveling Milling Vise
Tilting and swiveling milling vise offers the ultimate in work set-up. Precision aligned jaws and
easily accessible tilt and swivel clamps secure for
positively worry-free operation. Worth its weight
in gold!
G7156—4" (3 5 ⁄ 8") Precision Milling Vise
G7154—5" (4 1 ⁄ 2") Precision Milling Vise
G7155—6" (5 5 ⁄ 8") Precision Milling Vise
Swiveling Milling Vises feature perfectly aligned,
precision ground jaws, large Acme® screws and
easy to read 0°–360° scales.
Figure 53. Precision Milling Vise.
Figure 51. G7066 5" Tilting/Swiveling Milling
Vise.
Tilt Tables
G5758—5" x 7" x 3 3 ⁄4"
G5759—7" x 10" x 5"
Set your work at any angle from -45° to +45° with
these sturdy Tilt Tables. Heavy-duty construction
includes 7⁄ 16" T-slots, two locking screws, and precision base. 1⁄ 2" mounting slots.
H7527— 6" Rotary Table w/ Div. Plates
Use this 6" rotary table in either the horizontal
or vertical position for a variety of milling applications and with the set of dividing plates and
adjustable tailstock, your milling applications are
nearly unlimited. With 4 degree table movement
per handle rotation and 20 second vernier scale,
control is very accurate and precise. Also includes
a 3 ⁄ 8" clamping set for the 4-slot table. Everything
you need in one great set!
Figure 54. H7527 6" Rotary Table w/Div. Plates.
Figure 52. Tilt Table.
-42-
Model G0757Z (Mfd. Since 02/15)
Digital Indicators
G9806—Dial Indicator 0.05" Range x 0.0001"
H3326— Digital Indicator
If your measuring requirements call for supreme
accuracy within a short range, this is the Dial
Indicator for you. Graduations are 0.0001" (one
ten thousandth of an inch) and range is 0.05" (five
hundredths of an inch). Fits all dial indicator magnetic bases.
G9806
Basic Eye Protection
T20501—Face Shield Crown Protector 4"
T20502—Face Shield Crown Protector 7"
T20503—Face Shield Window
T20451—“Kirova” Clear Safety Glasses
T20452—“Kirova” Anti-Reflective S. Glasses
H7194—Bifocal Safety Glasses 1.5
H7195—Bifocal Safety Glasses 2.0
H7196—Bifocal Safety Glasses 2.5
T20502
H3326
T20452
T20503
H7194
Figure 55. Assortment of digital indicators.
Model G0757Z (Mfd. Since 02/15)
T20451
Figure 56. Assortment of basic eye protection.
-43-
SECTION 6: MAINTENANCE
Daily, After Operations
To reduce risk of shock or
accidental startup, always
disconnect machine from
power before adjustments,
maintenance, or service.
Schedule
Regular maintenance will help ensure proper
care of the equipment. We strongly recommend
that all operators make a habit of following the
maintenance procedures found in this section.
For optimum performance from this machine, this
maintenance schedule must be strictly followed.
Ongoing
To maintain a low risk of injury and proper
machine operation, if you ever observe any of the
items below, shut the machine down immediately,
disconnect it from power, and fix the problem
before continuing operations.
•
•
•
•
•
•
•
Loose mounting bolts or fasteners.
Worn, frayed, cracked, or damaged wires.
E-STOP button not working correctly.
Worn or loose V-belts (see Page 52).
Missing or open belt guards/door.
Coolant not flowing correctly.
Any other unsafe condition.
•
•
•
Push the E-STOP button, turn the master power switch OFF, and disconnect the
machine from power.
Vacuum/clean all chips and swarf from table,
slides, and base.
Wipe down all unpainted or machined surfaces with a high-quality rust preventative.
Cleaning &
Protecting
Metal chips and other debris left on the machine
will invite oxidation and a gummy residue build-up
around the moving parts. Use a brush and shop
vacuum to remove chips and debris from the
working surfaces of the mill. Never blow off the
mill with compressed air, as this will force metal
chips deep into the mechanisms and may cause
injury to yourself or bystanders.
Remove any rust build-up from unpainted cast
iron surfaces of your mill and treat them with a
non-staining lubricant after cleaning.
Keep unpainted cast iron surfaces rust-free
with regular applications of products like G96®
Gun Treatment, SLIPIT®, or Boeshield ® T-9 (see
Figure 57 and the Grizzly catalog or website).
Before Beginning Operations
•
•
•
•
•
-44-
Press the E-STOP button on the control
panel to prevent high-speed spindle startup
when connected to power.
Make sure the X-axis power feed is turned
OFF to prevent unintentional table movement
when connected to power.
Check the coolant reservoir in the base. Fill it
or clean it out if necessary (see Page 51).
Perform all required lubrication tasks (see
Page 45).
Check table movement in all three axes for
loose/tight gibs. Adjust the gibs if necessary.
H3788
G96® Gun
Treatment
G2870
Boeshield ® T-9
G5563
SLIPIT®
Figure 57. Products to clean and protect
unpainted cast iron surfaces.
Model G0757Z (Mfd. Since 02/15)
Lubrication
The mill has numerous moving metal-to-metal
contacts that require regular and proper lubrication to ensure efficient and long-lasting operation.
Other than the lubrication points covered in this
section, all other bearings are internally lubricated
and sealed at the factory. Simply leave them
alone unless they need to be replaced.
DISCONNECT MACHINE FROM POWER before
performing any lubrication task!
Important: Before adding lubricant, clean the
debris and grime from the device and the immediate area to prevent contamination of the new
lubricant.
Use the schedule and information in the chart
below as a daily guide for lubrication tasks.
Model G0757Z (Mfd. Since 02/15)
Lubrication Task
Frequency
Page
(Hours of
Ref.
Operation)
Ball Oilers
4–8
47
Vertical Spindle Bearings
4–8
48
Quill Exterior
4–8
48
Quill Rack & Pinion
40
48
Table Leadscrews
40
49
Ram Ways
40
49
Z-Axis Bevel Gears
80
49
X-Axis Power Feed Gears
80
50
The recommended lubrication schedule is
based on light-to-medium usage. Keeping
in mind that lubrication helps to protect
the value and operation of the mill, these
lubrication tasks may need to be performed
more frequently depending on usage.
-45-
Headstock
4.
Oil Type.......Model T23963 or ISO 32 Equivalent
Oil Amount............................................2.1 Quarts
Lubrication Frequency............................ Annually
The headstock uses ISO 32 machine oil to lubricate the gears, and is equipped with an oil-level
sight glass to gauge when the proper amount of
oil is in the headstock.
Oil-Level
Sight Glass
Red Mark
The amount of oil in the headstock must be
regularly monitored before each operation to
ensure it doesn't drop below sight glass visibility.
Headstock oil must be changed on an annual
basis to ensure proper lubricity of oil.
Tools Needed
Qty
Open-End Wrench 12mm................................... 1
Hex Wrench 8mm............................................... 1
Drain Pan (2-Gallon or Larger)........................... 1
Pump-Type Oil Can with Plastic or Rubber Tip.. 1
Fill headstock with oil to red mark on sight
glass (see Figure 59).
Figure 59. Red mark on sight glass indicates
headstock oil level is full.
5.
Re-install oil fill plug.
6.
Discard used oil following federal, state,
and fluid manufacturer guidelines for proper
disposal.
To change oil in headstock:
1.
Remove oil fill plug from top of headstock
(see Figure 58).
Oil Fill Plug
Oil Drain Plug
Figure 58. Headstock oil fill and drain locations.
2.
Hold drain pan under drain plug and remove
drain plug. Allow old oil to drain into drain
pan.
3.
Replace and tighten drain plug.
Do not fill headstock with oil above red
mark. This could damage machine and create an overflow of oil.
-46-
Model G0757Z (Mfd. Since 02/15)
Ball Oilers
Oil Type.......Model T23963 or ISO 32 Equivalent
Oil Amount.......................................... 1–2 Pumps
Lubrication Frequency....... 4–8 Hrs. of Operation
Proper lubrication of ball oilers is done with
a pump-type oil can that has a cone tip (see
Page 39 for offerings from Grizzly). We do not
recommend using metal needle or lance tips, as
they can push the ball too far into the oiler, break
the spring seat, and lodge the ball in the oil galley.
Push the tip of the oil can nozzle against the ball
oiler to create a hydraulic seal, then pump the oil
can once or twice. If you see sludge and contaminants coming out of the lubrication area, continue
pumping the oil can until the oil runs clear. Move
the components through the entire path of travel a
few times to distribute the oil. When finished, wipe
away the excess oil.
Figure 61. Front saddle and Y-axis handwheel
ball oilers.
Use Figures 60–64 to locate the 13 ball oilers on
the Model G0757Z.
Figure 62. Rear saddle ball oilers.
Figure 60. Ball oilers on the side of the knee
and Z-axis crank ball oiler.
Figure 63. Horizontal spindle ball oiler.
Note: There is a single ball oiler duplicated on the
opposite side of the knee.
Figure 64. Horizontal spindle arbor support ball
oiler.
Model G0757Z (Mfd. Since 02/15)
-47-
Vertical Spindle Bearings
Quill Exterior
Oil Type.......Model T23963 or ISO 32 Equivalent
Oil Amount.......................................... 1–2 Pumps
Lubrication Frequency....... 4–8 Hrs. of Operation
Oil Type.......Model T23962 or ISO 68 Equivalent
Oil Amount.............................................Thin Coat
Lubrication Frequency....... 4–8 Hrs. of Operation
To lubricate vertical spindle bearings:
Fully extend the spindle to expose the quill (see
Figure 66), then use an oily shop rag to apply a
thin coat of lubricant to the smooth surface of the
quill.
1.
Remove circular cover on right side of head
to expose vertical spindle spline (see Figure
65).
Note: If you remove any of the grease from the
teeth of the quill rack, replace it as instructed
below.
Spindle
Spline
Exposed
Pinion
Rack
Figure 65. Vertical spindle spline exposed for
lubrication.
2.
Raise spindle until you can see top of quill.
3.
Add 1–2 pumps from an oil can between
spindle spline and top of quill.
4.
Replace circular cover and run vertical spindle for a few minutes to distribute oil in
bearings.
Quill
Smooth
Surface
Figure 66. Quill lubrication points.
Quill Rack & Pinion
Grease Type.......... NLGI#2 Grease or Equivalent
Oil Amount.............................................Thin Coat
Lubrication Frequency..........40 Hrs. of Operation
Fully extend the spindle to expose the quill rack
(see Figure 66), then use mineral spirits, shop
rags, and a brush to clean the old grease from the
teeth of the rack and pinion.
When dry, use a brush to apply a thin coat of
grease to the teeth, then move the quill up and
down several times to evenly distribute the grease.
-48-
Model G0757Z (Mfd. Since 02/15)
Table Leadscrews
Ram Ways
Oil Type.......Model T23962 or ISO 68 Equivalent
Oil Amount.............................................Thin Coat
Lubrication Frequency..........40 Hrs. of Operation
Oil Type.......Model T23962 or ISO 68 Equivalent
Oil Amount.............................................Thin Coat
Lubrication Frequency..........40 Hrs. of Operation
Move the table as necessary to access the entire
length of the X-, Y-, and Z-axis leadscrews (see
Figures 67–68), then use mineral spirits, shop
rags, and a brush to clean them.
Move the ram as necessary to gain access to the
entire length of the ram dovetail ways (see Figure
69), use mineral spirits and shop rags to clean the
ways, then apply a thin coat of lubricant.
X-Axis
Leadscrew
Ram Dovetail Ways
Figure 67. X-axis leadscrew
(as viewed underneath the table).
Figure 69. Ram dovetail ways.
Z-Axis Bevel Gears
Grease Type.......... NLGI#2 Grease or Equivalent
Oil Amount.............................................Thin Coat
Lubrication Frequency..........80 Hrs. of Operation
Y-Axis
Leadscrew
Z-Axis
Leadscrew
Use mineral spirits, shop rags, and a brush to
clean the old grease from the teeth of the bevel
gears shown in Figure 70.
Figure 68. Y- and Z-axis leadscrews
(as viewed underneath the knee).
When dry, use a clean brush to apply a thin coat
of oil to the leadscrew threads, then move the
table through the X-, Y-, and Z-axis paths to distribute the oil.
Figure 70. Location of Z-axis bevel gears.
When dry, use a brush to apply a thin coat of
grease to the teeth, then move the table up and
down to evenly distribute the grease.
Model G0757Z (Mfd. Since 02/15)
-49-
X-Axis Power Feed Gears
Grease Type..........T23964 or NLGI#2 Equivalent
Amount..................................................Thin Coat
Add Frequency.....................40 Hrs. of Operation
5.
Brush a light coat of grease on bevel gear
teeth and smaller drive gear.
6.
Replace leadscrew alignment key, then align
bevel gear keyway with key as you slide gear
onto leadscrew and mesh its teeth with drive
gear.
7.
Replace graduated dial ring and secure it with
knurled retaining ring—do not overtighten.
8.
Slide ball handle onto leadscrew, align keyway with leadscrew alignment key, then
secure it with hex nut removed in Step 2.
9.
Move table with ball handle to check gear
movement and distribute grease on gears. If
movement is not smooth, repeat Steps 2–8
until it is.
Qty
Tool Needed
Open-End Wrench 19mm................................... 1
To lubricate power feed gears:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove hex nut and ball handle from power
unit end of the X-axis leadscrew.
3.
Unthread and remove knurled retaining ring
and graduated dial ring from end of leadscrew.
4.
Remove brass bevel gear from leadscrew,
then remove leadscrew alignment key (see
Figure 71).
Key
Brass
Bevel Gear
Drive
Gear
Figure 71. Power feed gears and key.
-50-
Model G0757Z (Mfd. Since 02/15)
Adding/Changing
Coolant
Hazards
As some coolant ages, dangerous microbes can
proliferate and create a biological hazard. The risk
of exposure to this hazard can be greatly reduced
by replacing the old coolant on a regular basis, as
indicated in the maintenance schedule.
The important thing to keep in mind when working
with the coolant is to minimize exposure to your
skin, eyes, and respiratory system by wearing
the proper PPE (personal protective equipment),
such as splash-resistant safety glasses, longsleeve gloves, protective clothing, and a NIOSH
approved respirator.
Checking/Adding Coolant
Tools Needed
Qty
Hex Wrench 5mm............................................... 1
Goggles........................................... 1 Per Person
Gloves............................................. 1 Per Person
Respirator........................................ 1 Per Person
New Coolant.............Approx. 2 Gallon (7.5 Liters)
Disposable Shop Rags....................... As Needed
To check or add coolant:
1.
DISCONNECT MACHINE FROM POWER!
2.
Clean away debris and grime from coolant
return screen and surrounding area, then
remove screen from base, as shown in
Figure 72.
Coolant
Return Screen
BIOLOGICAL & POISON
HAZARD!
Use the correct personal protection equipment
when handling coolant.
Follow federal, state,
and fluid manufacturer
requirements for proper
disposal.
A small amount of coolant is lost during normal
operation. Check the coolant reservoir regularly
and fill it if necessary. We recommend changing the coolant every three months or sooner if it
develops an unpleasant odor. However, be sure
to follow the coolant manufacturer's instructions
when checking, adding, or changing coolant.
The coolant reservoir holds approximately 2 gallons (7.5 liters) of fluid.
Running coolant pump without adequate
coolant in reservoir may permanently damage coolant pump, which will not covered
by warranty.
Model G0757Z (Mfd. Since 02/15)
Figure 72. Coolant return screen removed.
3.
Use a clean metal tool as a dip stick to measure the level of coolant in reservoir. If lower
than 1 1⁄2", add coolant by pouring it into return
screen hole.
4.
Re-install return screen before resuming milling operations.
Tip: As an alternate method, leave return
screen in place and use a clean, small instrument through holes in return screen, such
as a dip stick. If more coolant is necessary,
make sure screen and surrounding area are
clean from any containments, then add coolant through screen.
-51-
V-Belt Service
Changing Coolant
Tools Needed
Qty
Hex Wrench 5mm............................................... 1
Catch Pan........................................................... 1
Empty Bucket 5-Gal........................................... 1
Rubber Hose (optional)...................................... 1
Goggles........................................... 1 Per Person
Gloves............................................. 1 Per Person
Respirator........................................ 1 Per Person
New Coolant...........Approx. 2 Gallons (7.5 Liters)
Disposable Shop Rags....................... As Needed
To change coolant:
1.
Put on personal protective equipment.
2.
Place catch pan on table, position coolant
nozzle into pan, then use coolant pump to
drain reservoir.
Note: When catch pan is near full, empty it
into a 5 gallon bucket, then repeat process
until reservoir is empty.
Tip: Alternately, slide a rubber hose onto
coolant nozzle and point it 5 gallon bucket.
3.
DISCONNECT MACHINE FROM POWER!
4.
Clean away debris from coolant return screen
and surrounding area, then remove screen
from base.
5.
Thoroughly clean out reservoir. Make sure
interior is dry before adding new coolant.
Note: Use a shop vacuum and a cleaning
solution that is compatible with type of coolant. For instance, if you are using a waterbase coolant, then use a water-base cleaning
solvent. Also, use magnets to remove any
metal chips left behind.
6.
When reservoir is clean and dry, fill reservoir
with new coolant through hole in the base left
by return screen.
Tip: Place a couple of magnets inside reservoir under return screen to collect metal
particles and keep them out of coolant pump.
7.
-52-
Re-install return screen before resuming milling operations.
During the first 16 hours of use, the V-belts may
stretch slightly and seat into the pulleys. It is important to check and adjust them to compensate for
this initial wear. Check the tension thereafter on a
regular basis. If belts become excessively worn or
damaged, replace them.
All V-belts can be replaced by releasing the tension and rolling them off the pulleys, then rolling
the new belts back onto the pulleys.
Tensioning Lower Horizontal Spindle
V-Belts
Tools Needed
Qty
Open-End Wrench 24mm................................... 1
Dead Blow Hammer........................................... 1
Hex Wrench 8mm............................................... 1
To tension lower horizontal spindle V-belts:
1.
DISCONNECT MACHINE FROM POWER!
2.
Open column rear cover to gain access to
horizontal spindle V-belts and pulleys, as
shown in Figure 73.
Upper
V-Belts
Hex Nut
Behind Bracket
Lower
V-Belts
Tension
Thumbwheel
Lower Idler Pulley
Figure 73. Horizontal spindle V-belts and pulleys
(cover removed for photo clarity).
Model G0757Z (Mfd. Since 02/15)
3.
Loosen tension thumbwheel and hex nut
behind lower idler pulley bracket.
Note: In next step, you may have to bump
lower idler pulley with dead blow hammer to
get it to move.
4.
Apply pressure on lower idler pulley to the left
as you tighten tension thumbwheel.
Note: There is proper V-belt tension when
approximately 1⁄4" –1⁄2" deflection is achieved
(see Figure 74) by applying moderate pressure midway between pulleys.
⁄4"–1⁄2"
Deflection
1
Tensioning Upper Horizontal Spindle
V-Belts
Tools Needed
Qty
Hex Wrench 6mm............................................... 1
Open-End Wrench 14mm................................... 1
To tension upper horizontal spindle V-belts:
1.
DISCONNECT MACHINE FROM POWER!
2.
Open horizontal column rear cover to gain
access to horizontal spindle V-belts and pulleys.
3.
Loosen hex nut on center cap screw shown in
Figure 75, then rotate cap screw clockwise to
increase tension in upper V-belts.
Pulley
Note: There is proper V-belt tension when
approximately 1⁄4" –1⁄2" deflection is achieved
(see Figure 74 on previous page) by applying
moderate pressure midway between pulleys.
Pulley
Upper V-Belts
Figure 74. Checking V-belt tension.
5.
Retighten hex nut behind center pulley bracket.
6.
Close and rear column cover.
Center
Cap Screw
& Hex Nut
Figure 75. Upper horizontal V-belt tensioning
cap screw.
4.
Model G0757Z (Mfd. Since 02/15)
Retighten hex nut and secure column rear
cover.
-53-
Machine Storage
The machine must be properly prepared if it will
be stored for any period of time. Doing this will
help prevent the development of rust and corrosion and ensure the mill remains in good condition
for later use.
Note: When taking the machine out of storage,
repeat the Test Run and the Spindle Break-In.
Bringing Mill Out of Storage
1.
Re-tension V-Belts (refer to Page 52) if you
loosened them for storage purposes.
2.
Remove moisture-absorbing desiccant packs
from the electrical box.
3.
Repeat Test Run and Spindle Break-In procedures, beginning on Page 23.
4.
Add coolant, as described in Adding/
Changing Coolant on Page 51.
Preparing Mill for Storage
1.
DISCONNECT MACHINE FROM POWER!
2.
Lubricate machine as directed in Lubrication
on Page 46.
3.
Clean out coolant reservoir as directed in
Changing Coolant on Page 51.
4.
Thoroughly clean all unpainted, bare metal
surfaces, then coat them with quality rust preventative. Take care to ensure these surfaces
are completely covered but rust preventative
is kept off painted surfaces.
Note: If the machine will be out of service
for only a short period of time, use way oil in
place of rust preventative.
5.
Loosen belts to prevent them from stretching
during storage. Post a reminder on machine
that belts need to be re-installed or tensioned
before resuming operations.
6.
Place a few moisture-absorbing desiccant
packs inside electrical cabinet.
7.
Cover and place machine in a dry area that
is out of direct sunlight and away from hazardous fumes, paint, solvents, or gas. Fumes
and sunlight can bleach or discolor paint and
plastic parts.
-54-
Model G0757Z (Mfd. Since 02/15)
SECTION 7: SERVICE
Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support. Note: Please gather
the serial number and manufacture date of your machine before calling.
Troubleshooting
Motor & Electrical
Symptom
Possible Cause
Possible Solution
Machine does not
start or a breaker
trips.
1. Emergency stop button depressed/at fault.
2. Plug/receptacle at fault/wired wrong.
3. Incorrect power supply voltage or circuit
size.
4. Column cover interlock safety switch is
engaged.
5. Blown machine fuse.
6. Power supply circuit breaker tripped or fuse
blown.
7. Motor wires connected incorrectly.
8. Wiring open/has high resistance.
9. Start capacitor at fault (horizontal motor
only).
10. Potentiometer/variable-speed dial controller
at fault.
11. Contactor not energized/has poor contacts.
12. Inverter/control box at fault.
13. Motor at fault.
1. Rotate button head to reset. Replace.
2. Test for good contacts; correct the wiring.
3. Ensure correct power supply voltage and circuit
size.
4. Re-adjust component to disengage column cover
interlock safety switch.
5. Replace fuse/ensure no shorts.
6. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
7. Correct motor wiring connections.
8. Check/fix broken, disconnected, or corroded wires.
9. Test/replace.
1. Machine undersized for task.
1. Use correct cutter/bit; reduce feed rate; reduce
spindle RPM; use coolant if possible.
2. Decrease feed rate/cutting speed.
3. Use correct type/size of metal.
4. Tension/replace belt(s); ensure pulleys are aligned.
5. Clean belt(s).
6. Wire motor correctly.
7. Select appropriate gear ratio; replace broken or
slipping gears.
8. Clean motor, let cool, and reduce workload.
9. Test/repair/replace.
Machine stalls or is
underpowered.
2.
3.
4.
5.
6.
7.
Feed rate/cutting speed too fast.
Wrong workpiece material.
Belt(s) slipping.
Oil/grease on belt(s).
Motor wired incorrectly.
Gearbox at fault.
8. Motor overheated.
9. Run capacitor at fault (horizontal motor
only).
10. Pulley/sprocket slipping on shaft.
11. Contactor not energized/has poor contacts.
Model G0757Z (Mfd. Since 02/15)
10. Test/replace.
11. Test all legs for power/replace.
12. Inspect inverter/controller box; replace.
13. Test/repair/replace.
10. Replace loose pulley/shaft.
11. Test all legs for power/replace.
-55-
Symptom
Possible Cause
Possible Solution
Machine has
vibration or noisy
operation.
1. Workpiece loose.
1. Use the correct holding fixture and reclamp
workpiece.
2. Replace unbalanced chuck; replace/resharpen
cutter; use correct feed rate.
3. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
4. Inspect/replace belts with a new matched set.
5. Fix/replace fan cover; replace loose/damaged fan.
6. Tighten/replace.
7. Re-align/replace shaft, pulley set screw, and key.
8. Tighten mounting bolts; relocate/shim machine.
9. Replace/realign belts with a matched set.
10. Replace.
2. Chuck or cutter at fault.
3. Motor or component loose.
4. V-belt(s) worn or loose.
5. Motor fan rubbing on fan cover.
6. Motor mount loose/broken.
7. Pulley loose.
8. Machine incorrectly mounted.
9. Belts slapping cover.
10. Centrifugal switch is at fault (horizontal
motor only).
11. Motor bearings at fault.
11. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
Mill Operations
Symptom
Possible Cause
Possible Solution
Tool loose in
spindle.
1. Tool is not fully drawn up into spindle taper.
2. Taking too big of a cut.
3. Debris on tool or in spindle taper.
1. Tighten drawbar.
2. Lessen depth of cut and allow chips to clear.
3. Clean tool and spindle taper.
Breaking tools or
cutters.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Workpiece or tool
vibrates or chatters
during operation.
1. Table locks not tight.
2. Workpiece not secure.
3. Spindle speed/feed rate is too fast.
Spindle speed/feed rate is too fast.
Cutting tool is too small.
Cutting tool getting too hot.
Taking too big of a cut.
Spindle extended too far down.
4. Spindle extended too far down.
5. Quill lock not tight.
6. Gibs too loose in table.
Table is hard to
move.
1. Table locks are tightened down.
2. Chips have loaded up on ways.
3. Ways are dry and need lubrication.
4. Table limit stops are interfering.
5. Gibs are too tight.
Headstock is hard to 1. Headstock lock(s) or gib is at fault.
raise.
2. Headstock leadscrew is binding.
3. Gib is too tight.
-56-
Set spindle speed correctly or use slower feed rate.
Use larger cutting tool and slower feed rate.
Use coolant or oil for appropriate application.
Lessen depth of cut and allow chips to clear.
Fully retract spindle and lower headstock. This
increases rigidity.
1. Tighten table locks (Page 28).
2. Properly clamp workpiece on table or in vise.
3. Set spindle speed correctly or use slower feed rate
(Page 35).
4. Fully retract spindle and lower headstock. This
increases rigidity.
5. Tighten quill lock (Page 37).
6. Tighten gibs.
1. Make sure table locks are fully released.
2. Frequently clean away chips that load up during
operations.
3. Lubricate ways.
4. Check to make sure that all table limit stops are not
in the way.
5. Adjust gibs (Page 61).
1. Loosen/replace lock lever and adjust gib.
2. Clean and relubricate headstock leadscrew and
gears.
3. Adjust gib (Page 61).
Model G0757Z (Mfd. Since 02/15)
Symptom
Possible Cause
Possible Solution
Bad surface finish.
1. Spindle speed/feed rate is too fast.
2. Workpiece not secure.
3. Spindle extended too far down.
1. Set spindle speed correctly or use slower feed rate
(Page 35).
2. Properly clamp workpiece on table or in vise.
3. Fully retract spindle and lower headstock. This
increases rigidity.
4. Sharpen cutting tool or select one that better suits
the operation.
5. Check for proper cutting tool rotation direction.
4. Dull or incorrect cutting tool.
5. Wrong rotation direction of cutting tool.
Cutting results not
square.
1. Table and spindle are not at 90° to each
other.
2. Table travel is inconsistent.
1. Tram the spindle (Page 58).
2. Adjust gibs (Page 61).
Spindle overheats.
1. Poor spindle bearing lubrication.
2. Spindle bearings too tight.
3. Mill operated at high speeds for extended
period.
1. Lubricate spindle bearings.
2. Properly adjust spindle bearing preload.
3. Allow mill to cool.
Lack of power at
spindle.
1. V-belts are loose.
2. Wrong voltage.
1. Properly tension V-belts (Page 52).
2. Correct voltage.
Spindle does not
return to highest
position.
1. Poorly adjusted return spring.
2. Worn return spring.
1. Increase return spring tension.
2. Replace return spring.
Control Panel
FORWARD and
REVERSE buttons
do not work.
1. Shorted/disconnected wiring.
1. Inspect circuit boards, wiring connections. Replace/
repair as necessary.
Power feed does
not move table or is
slipping.
1.
2.
3.
4.
5.
Operates at high
speed only or is
inconsistent.
1. Rapid micro switch is stuck.
2. Variable-speed dial doesn't work properly.
3. Wiring harness disconnected.
1. Lightly tap on it to lower it.
2. Test/Repair/Replace.
3. Reconnect wiring harness.
Lamp will not light.
2. Power not turned on.
3. Bulb is burned out.
1. Short in wiring or wired incorrectly.
2. Press switch/button on lamp or control panel.
3. Replace bulb.
1. Trace and test wiring. Fix any errors.
DRO doesn't give
reading.
1. DRO is not turned on.
2. Batteries are dead.
3. Shorted/disconnected wiring/plugs.
1. Switch DRO ON/Power button.
2. Change batteries.
3. Inspect circuit boards, sensors, plugs, and wiring
connections. Replace/repair as necessary.
DRO reading is
incorrect.
1. Initial reading is incorrect.
2. Sensor has gone bad.
3. Spacing between sensor and scale is
incorrect.
1. Tare/Zero/Reset DRO at beginning point.
2. Test/replace sensor as necessary.
3. Adjust spacing between sensor and scale.
Table locked.
Drive selector not engaged.
Sheared pin.
Gears not meshing or teeth missing.
Motor shaft and gear shaft not engaged.
Model G0757Z (Mfd. Since 02/15)
1.
2.
3.
4.
5.
Unlock table locks (Page 28).
Select speed, engage drive selector.
Replace pin.
Check gears and adjust/replace.
Replace clutch.
-57-
Tramming Mill Head
After positioning the head at an angle and when
your operation requires that the spindle axis be
precisely perpendicular to the table, you must
tram or align the spindle with the table to ensure
the spindle is exactly 90° to the table.
This procedure involves mounting a dial test
indicator to the quill or spindle, rotating it around
the table, and adjusting the spindle axis (Z-axis)
90° to the table X- and Y-axes, as illustrated in
Figure 76.
Note: A precision-ground plate can be substituted for the parallel blocks. Keep in mind that
the farther the indicator point can be placed from
the spindle axis, the more accurate the alignment
measurements will be.
To tram spindle to mill head:
1.
DISCONNECT MACHINE FROM POWER!
2.
Prepare the mill for tramming by performing
following tasks:
• Verify the table is clean by running your
hand over the top of it. If necessary, stone
the table to remove all nicks and burrs,
then clean off all debris.
Spindle
• Position the table for the milling operation
you intend to perform after tramming—
preferably centered with the saddle.
Z-Axis
Y-Axis
9
90º 0º
• Tighten any table, knee, quill, or ram locks
that should be tight during the intended
milling operation.
X-Axis
Table
Figure 76. Spindle Z-axis perpendicular to the
table X- and Y-axis.
We encourage you to research the many variations of spindle tramming to find the one that
works best for you. If you do not already have a
preference for performing this operation, use the
following widely-used procedure for accurately
tramming the spindle to the table.
Keep in mind that all workpiece top surfaces are
not exactly parallel with the table top. You may
choose to tram the spindle to the top surface of
the workpiece after it is mounted instead of that
of the table.
Tools Needed
Qty
Dial Test Indicator
(with at least 0.0005" resolution)................. 1
Indicator Holder
(mounted on the quill/spindle)..................... 1
Precision Parallel Block
(at least 9" in length).................................... 1
-58-
3.
Place parallel block underneath spindle.
4.
Install indicator holder in spindle or on quill,
then mount indicator so that point is as parallel to the block as possible (see illustration in
Figure 77).
Indicator Holder
Spindle
Dial Test
Indicator
Parallel Block
Table
Figure 77. Dial test indicator mounted.
Model G0757Z (Mfd. Since 02/15)
5.
To measure spindle alignment along X-axis,
place parallel block directly under spindle and
indicator across length of table, as illustrated
in Figure 78.
7.
— If indicator dial still reads zero or is within
the acceptable variance, continue on with
Step 8.
Note: If you must re-position quill or knee to
accommodate above step, then review the
tasks in Step 2 to make sure the mill is properly prepared for tramming.
— If indicator dial has moved from zero
beyond acceptable variance, you will need
to compensate for that amount by rotating head left or right. Repeat Steps 6–7
until you are satisfied with the spindle axis
alignment along table X-axis.
Table (Top View)
Parallel Block
Indicator
Note: Keep one of the rotation lock bolts
just snug so the head does not move loosely
while you adjust it. Remember to tighten
all the rotation lock bolts after adjusting the
head.
Spindle
8.
Figure 78. Parallel block and indicator positioned
for the X-axis measurement
(top view).
Note: Your general goal in the next steps
should be to get the difference of the indicator
readings between the ends of the parallel bar
down to 0.0005". However, the acceptable
variance will depend on the requirements for
your operation.
6.
Rotate spindle by hand so that indicator point
rests on one end of parallel block, as illustrated in Figures 77–78, then zero dial.
Rotate spindle so that indicator point rests
in same manner on other end of block, then
read dial.
Place parallel block directly under spindle
and across width of table, as illustrated in
Figure 79.
Table (Top View)
Indicator
Spindle
Parallel Block
Figure 79. Parallel block and indicator positioned
for the Y-axis measurement
(top view).
Model G0757Z (Mfd. Since 02/15)
-59-
9.
Rotate spindle so indicator point rests on parallel block, as illustrated in Figure 79, then
zero dial.
10. Rotate spindle so that indicator point rests on
other end of block in same manner, then read
dial.
— If indicator dial still reads zero or is within
the acceptable variance, the spindle is
precisely perpendicular to table in both
X- and Y-axes, and tramming procedure
is complete.
— If indicator dial has moved from zero
beyond acceptable variance, you will need
to compensate for that amount by tilting
head forward or backward. Repeat Steps
9–10 until you are satisfied with spindle
axis alignment along table Y-axis.
Note: Keep one of the tilt lock bolts just snug
so the head does not move loosely while you
adjust it. Remember to tighten all the tilt lock
bolts after adjusting the head.
Adjusting Leadscrew
Backlash
Leadscrew backlash is the amount of free play
movement in the leadscrew (when the leadscrew
moves but the table does not) after changing the
direction of rotation.
A leadscrew must have a certain amount of backlash to rotate easily, but over time, it increases
with wear. Generally, 0.005"–0.010" leadscrew
backlash is acceptable to ensure smooth movement and reduce the risk of premature thread
wear.
The X-axis leadscrew backlash is adjusted using
a long 4mm hex wrench to tighten/loosen the cap
screws on the leadscrew nut. This adjusts the force
the leadscrew nut exerts on the leadscrew threads.
The X-axis leadscrew nut shown in Figure 80 is
accessed from underneath the right side of the
table.
X-Axis Leadscrew Nut
Cap Screws
Figure 80. Location of X-axis leadscrew nut cap
screws for adjusting backlash.
-60-
Model G0757Z (Mfd. Since 02/15)
Adjusting Gibs
Gibs are tapered lengths of metal that are sandwiched between two moving surfaces. Gibs control the gap between these surfaces and how they
slide past one another. Correctly adjusting the
gibs is critical to producing good results.
The Z-axis gib has only one adjustment screw
on the top of the gib (see Figure 82). The screw
moves the gib up and down. Other than this difference, use the same method of adjustment as
with the other gibs.
Note: Remove the way cover behind the table to
gain access to the Z-axis gib adjustment screw.
Correctly positioning gibs is a matter of trial and
error and patience. Tight gibs make table movement more accurate but stiff. Loose gibs make
table movement sloppy but easier to do. The goal
of gib adjustment is to remove unnecessary sloppiness without causing the ways to bind.
Many experienced machinists adjust the gibs just
to the point where they can feel a slight drag in
table movement.
Screws on each end of the gib allow gib adjustment to increase or decrease the friction between
the sliding surfaces.
DISCONNECT MACHINE FROM
BEFORE ADJUSTING THE GIBS!
Z-Axis
Gib Screw
Figure 82. Location of Z-axis gib adjustment
screw.
POWER
Make sure all table locks are loose. For the X- and
Y-axis gibs, loosen one gib adjustment screw (see
Figure 81) and tighten the opposite screw the
same amount to move the gib, while at the same
time rotating the handwheel to move the table until
you feel a slight drag in that path of movement.
Note: Remove the way cover behind the table
to gain access to the rear Y-axis gib adjustment
screw.
X-Axis Gib Screw
(1 of 2)
Y-Axis Gib Screw
(1 of 2)
Figure 81. Locations of X- and Y-axis gib
adjustment screws.
Model G0757Z (Mfd. Since 02/15)
-61-
machine
SECTION 8: WIRING
These pages are current at the time of printing. However, in the spirit of improvement, we may make changes to the electrical systems of future machines. Compare the manufacture date of your machine to the one
stated in this manual, and study this section carefully.
If there are differences between your machine and what is shown in this section, call Technical Support at
(570) 546-9663 for assistance BEFORE making any changes to the wiring on your machine. An updated
wiring diagram may be available. Note: Please gather the serial number and manufacture date of your
machine before calling. This information can be found on the main machine label.
Wiring Safety Instructions
SHOCK HAZARD. Working on wiring that is connected to a power source is extremely dangerous.
Touching electrified parts will result in personal
injury including but not limited to severe burns,
electrocution, or death. Disconnect the power
from the machine before servicing electrical components!
MODIFICATIONS. Modifying the wiring beyond
what is shown in the diagram may lead to unpredictable results, including serious injury or fire.
This includes the installation of unapproved aftermarket parts.
WIRE CONNECTIONS. All connections must
be tight to prevent wires from loosening during
machine operation. Double-check all wires disconnected or connected during any wiring task to
ensure tight connections.
CIRCUIT REQUIREMENTS. You MUST follow
the requirements at the beginning of this manual
when connecting your machine to a power source.
WIRE/COMPONENT DAMAGE. Damaged wires
or components increase the risk of serious personal injury, fire, or machine damage. If you notice
that any wires or components are damaged while
performing a wiring task, replace those wires or
components.
MOTOR WIRING. The motor wiring shown in
these diagrams is current at the time of printing
but may not match your machine. If you find this
to be the case, use the wiring diagram inside the
motor junction box.
CAPACITORS/INVERTERS. Some capacitors
and power inverters store an electrical charge for
up to 10 minutes after being disconnected from
the power source. To reduce the risk of being
shocked, wait at least this long before working on
capacitors.
EXPERIENCING DIFFICULTIES. If you are experiencing difficulties understanding the information
included in this section, contact our Technical
Support at (570) 546-9663.
The photos and diagrams
included in this section are
best viewed in color. You
can view these pages in
color at www.grizzly.com.
-62-
Model G0757Z (Mfd. Since 02/15)
Wiring Overview
Rear Column
Limit Switch
LongJing LXW511Q1
COM
NO
NC
RPM Sensor
Control Panel
Page 66
DRO
Page 68
Vertical Spindle Motor
Page 67
Electrical Panel
Page 64
Horizontal Spindle
Motor Page 67
X-Axis Power Feed
ASONG AS-235
Coolant Pump
Page 68
Hot
220
VAC
Hot
G
6-15 Plug
(As Recommended)
Ground
Component Location
RPM Sensor
Work
Lamp
DRO
Electrical
Panel
Vertical Spindle
Motor
Control
Panel
Rear Column Cover
Limit Switch
X-Axis
Power Feed
Coolant
Pump
Model G0757Z (Mfd. Since 02/15)
Horizontal
Spindle Motor
(Inside)
READ ELECTRICAL SAFETY
ON PAGE 62!
-63-
Electrical Panel Wiring Diagram
To RPM sensor
Page 63
PE
N2
PE
N3
L3
L2
3
L
3/L2
1/L1
PE
0
R S T
L1 L2 L3
220 230 380 400
21
N
5/L3
2
22 13
2
14
Circuit
Breaker
DZ47-60
C2
25
Transformer
TC
JBK5-160VA
0
27
D
1
Variable Frequency Drive
DELTA VFD-E
OFF ON
23
20
20-25A
NS2-25
AFM MO1
MCM
ACM
DCM
M1
2/T1
V
T2
W
T3
U1
V1
W1
B1
L2
6/T3
N2
N2
1
B2
GND
GND
PE
PE
4/T2
L2
10V
AVI
+
U
T1
CHINT OL Relay QF1 QF2
RC
MI2 MI4 MI6 DCM ACM ACI
MI1 MI3 MI5 DCM 24V AVI 10V
M2
OFF
Test
RB
RA
ON
PE
N3
D
D
D
M1
A1
M2
A1
1L1
3L2
5L3
13NO
21NC
31NC
11
1L1
43NO
KM1 Contactor
Siemens 3TB41 24V
22E
13NO
9
22NC
32NC
2T1
4T2
6T3
44NO
12
21NC
5L3
31NC
43NO
2T1
4T2
32NC
16
1L1
13NO
21NC
31NC
43NO
13NO
KM3 Contactor
Siemens 3TB41 24V
44NO
6T3
14
22NC
32NC
2T1
4T2
6T3
D
L3
5L3
31NC
43NO
14NO
L2
1L1
3L2
5L3
13NO
21NC
31NC
43NO
A1
4T2
U2
V2 U2
32NC
15
44NO
6T3
V1
N2
L2
1L1
3L2
5L3
13NO
21NC
31NC
43NO
5
KA Contactor
Siemens 3TB41 24V
KM5 Contactor
Siemens 3TB41 24V
22E
22NC
2T1
D
N3
L3
A1
22E
13
A2
14
21NC
13
44NO
17
3L2
N3
KM4 Contactor
Siemens 3TB41 24V
V2
14NO
A2
8 DCM
16
5L3
22E
22NC
L3
A1
3L2
KM2 Contactor
Siemens 3TB41 24V
14NO
D
1L1
10
A2
DCM
3L2
9
N3
L3
A1
22E
8
14NO
11
L3
D
22E
14NO
22NC
32NC
2T1
4T2
6T3
44NO
14NO
22NC
32NC
2T1
4T2
6T3
44NO
6
A2
L1
V1
N1
A2
7
L3
N3
6
17
12
A2
LW26-25
Master Power Switch
1
3
5
7
L
F
PE PE PE PE D
PE PE PE PE D D 3 3
CanSen
4
5
6
7
8
9 11 13 14 16 V2 U2 V1
L1 N1 L3 L3 N3 N3 N2 L2 N
L
4
5
6
7
8
9 11 13 14 16 V2 U2 V1
L1 Z1 L3
N3 U1 N2 L2 N
L
N
R
2
4
6
8
L
N
To Vertical To Power To Column
Spindle Motor Connection Limit Switch
Page 63
Page 63
Page 67
-64-
3
To Master
To
Control Panel
To X-Axis
Horizontal
Page 66
Power Feed Spindle Motor
Page 63
Page 67
READ ELECTRICAL SAFETY
ON PAGE 62!
To
Work Lamp
Page 63
To
DRO
Page 63
To
Coolant Pump
Page 68
Model G0757Z (Mfd. Since 02/15)
Electrical Panel Wiring
Figure 83. Electrical panel wiring.
Model G0757Z (Mfd. Since 02/15)
READ ELECTRICAL SAFETY
ON PAGE 62!
-65-
Control Panel Wiring
STOP (Vertical)
REVERSE (Vertical)
8
1 2
3 4
6
Minger
LA125H-BE101C
3 4
8
11
8
RPM READOUT DISPLAY
FORWARD (Vertical)
Minger
LA125H-BE101C
Minger
LA125H-BE102C
9
8
STOP (Horizontal) REVERSE (Horizontal) FORWARD (Horizontal)
To
Electrical Panel
Page 64
6
Minger
LA125H-BE101C
Minger
LA125H-BE102C
1 2
3 4
13
Minger
LA125H-BE101C
13
Master Control Panel
(Viewed from Behind)
(Potentiometer)
XINGHUO WXD3 4K7
5
2 1
3 4
Minger
LA125H-BE101C
4
6
Variable-Speed Dial
(Viewed from Above)
14
16
6
Pump Switch
13
3 4
13
6
5
D
7
Minger
LA125J-11
D206A
6
Minger
LA125H-BE102C
EMERGENCY OFF
Switch
POWER Light
Ground
GND
To
Electrical Panel
Page 64
+5V
RPM Readout Power Supply (Viewed from Above)
Figure 84. Control panel wiring.
-66-
READ ELECTRICAL SAFETY
ON PAGE 62!
Model G0757Z (Mfd. Since 02/15)
Vertical Spindle Motor Wiring
220V Motor Fan
220V Motor
W1
Ground
V2
W1
V1
U2
V2
W1
U2
V1
Figure 85. Vertical spindle motor wiring.
V1
U1
W2
PE
U1
U1
W2
To
Electrical Panel
Page 64
Horizontal Spindle Motor Wiring
220V Motor
Start
Capacitor
150 MFD
250 VAC
U2
V1
Z2
U1
PE
V2
U2
W2
V1
Z1
W1
U1
V2
Ground
Run
Capacitor
20 MFD
450 VAC
Figure 86. Horizontal spindle motor wiring.
To
Electrical Panel
Page 64
Model G0757Z (Mfd. Since 02/15)
READ ELECTRICAL SAFETY
ON PAGE 62!
-67-
Coolant Pump Wiring
Coolant Pump
CBB61
Run Capacitor
5MFD
450VAC
Gnd
To
Electrical Panel
Page 64
PE
Figure 87. Coolant pump wiring.
DRO Wiring
DRO
X
To
Electrical Panel
Page 64
Y
Z
(Viewed from Behind)
X-Axis Scale 650mm
Figure 88. DRO wiring.
Y-Axis Scale 300mm
Z-Axis Scale 500mm
-68-
READ ELECTRICAL SAFETY
ON PAGE 62!
Model G0757Z (Mfd. Since 02/15)
SECTION 9: PARTS
We do our best to stock replacement parts when possible, but we cannot guarantee that all parts shown
are available for purchase. Call (800) 523-4777 or visit www.grizzly.com/parts to check for availability.
Column
95
94-5
96
89
94-4
94-2 94-3
94-1
88
99
39
38
47
74
50
72
75
71
73
76
56
69
46
45
47
55
55
68
Model G0757Z (Mfd. Since 02/15)
64
63
66
11
5
57
60
14
20
20
17
38
79
44
42
17
10
60
58
59
19
41
65
67
16
20
47
51
15
12
48
50
91 74
33
49
83
37
13
29
34 28 30 31
35
23
39
32
81
22
24
85
36
77
21
26
90
92
23
97
27
94
20
61
3
62
52
18
41
40
53
7
8
6
2
80
9
93
1
4
54
78
98
-69-
Column Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
44
45
46
47
48
49
50
BASE
COLUMN
Z-AXIS LEADSCREW HOUSING
LOCK WASHER 10MM
HEX BOLT M10-1.5 X 45
COOLANT DRAIN SCREEN
PHLP HD SCR M6-1 X 12
HEX BOLT M16-2 X 65
LOCK WASHER 16MM
Z-AXIS LEADSCREW COLLAR
CAP SCREW M8-1.25 X 25
TURRET BASE
CAP SCREW M12-1.75 X 30
TURRET
GEAR SHAFT 15T
SHAFT COLLAR
ADJUSTABLE HANDLE M10-1.5 X 25
LOCK PLUNGER
RAM GIB
FLAT HD SCR M8-1.25 X 40
RAM
RAM END COVER
PHLP HD SCR M6-1 X 10
RAM TOP COVER
HEADSTOCK MOUNT
CAP SCREW M16-2 X 50
SET SCREW M8-1.25 X 20
THRUST BEARING 51101
WORM GEAR
THRUST BEARING 51102
KEY 4 X 4 X 20
WORM SHAFT
T-BOLT M16-2 X 60
LOCK WASHER 16MM
HEX NUT M16-2
T-BOLT M16-2 X 50
FLAT WASHER 16MM
HEX NUT M16-2
COOLANT PUMP 40W 220V 1-PH
CAP SCREW M5-.8 X 12
COOLANT PUMP COVER
SLEEVE
CAP SCREW M6-1 X 18
Z-AXIS GIB
BALL OILER 8MM PRESS-IN
LOWER WAY COVER
UPPER WAY COVER
CAP SCREW M6-1 X 25
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
71
72
73
74
75
76
77
78
79
80
81
83
85
88
89
90
91
92
93
94
94-1
94-2
94-3
94-4
94-5
95
96
97
98
99
KNEE
SPLASH PAN
CAP SCREW M6-1 X 12
Z-AXIS LEADSCREW
SPANNER NUT M16-1.5
BEVEL GEAR 25T
KEY 6 X 6 X 12
SPACER
BEARING SEAT
THRUST BEARING 51105
Z-AXIS LEADSCREW NUT 42 X 60MM
SET SCREW M8-1.25 X 20
BEVEL GEAR 25T
SET SCREW M6-1 X 10
THRUST BEARING 51103
BEARING SEAT
KEY 5 X 5 X 20
Z-AXIS CRANK SHAFT
SHAFT BRACKET
Z-AXIS GRADUATED DIAL
THUMB SCREW M6-1 X 10
CRANK BRACKET
SET SCREW M8-1.25 X 16
Z-AXIS CRANK
CRANK HANDLE
HANDLE STEP SCREW M10-1.5 X 15
FLANGE BOLT M10-1.5 X 16
COLUMN REAR COVER
FLAT HD SCR M5-.8 X 12
HORIZONTAL ARBOR SUPPORT
BUSHING (BRASS)
CLAMP BOLT M16-2 X 218
HALOGEN WORK LIGHT ASSEMBLY
HALOGEN BULB 24W BI-PIN
COOLANT NOZZLE ASSEMBLY
COOLANT HOSE 1/2" X 36"
COOLANT HOSE CLAMP 3/4"
LIMIT SWITCH CHINT XBLXW-W11Q1
X/Y/Z-AXIS DRO SET
DRO DISPLAY ASSEMBLY
X-AXIS DRO SCALE
Y-AXIS DRO SCALE
Z-AXIS DRO SCALE
DRO POWER CORD 3W 18G
CONTROL PANEL BOX W/SWING ARM
BUTTON HD CAP SCR M4-.7 X 6
CAP SCREW M8-1.25 X 20
LIMIT SWITCH CORD 2W 18G
LAMP CORD 2W 18G
-70-
P0757Z001
P0757Z002
P0757Z003
P0757Z004
P0757Z005
P0757Z006
P0757Z007
P0757Z008
P0757Z009
P0757Z010
P0757Z011
P0757Z012
P0757Z013
P0757Z014
P0757Z015
P0757Z016
P0757Z017
P0757Z018
P0757Z019
P0757Z020
P0757Z021
P0757Z022
P0757Z023
P0757Z024
P0757Z026
P0757Z027
P0757Z028
P0757Z029
P0757Z030
P0757Z031
P0757Z032
P0757Z033
P0757Z034
P0757Z035
P0757Z036
P0757Z037
P0757Z038
P0757Z039
P0757Z040
P0757Z041
P0757Z042
P0757Z044
P0757Z045
P0757Z046
P0757Z047
P0757Z048
P0757Z049
P0757Z050
P0757Z051
P0757Z052
P0757Z053
P0757Z054
P0757Z055
P0757Z056
P0757Z057
P0757Z058
P0757Z059
P0757Z060
P0757Z061
P0757Z062
P0757Z063
P0757Z064
P0757Z065
P0757Z066
P0757Z067
P0757Z068
P0757Z069
P0757Z071
P0757Z072
P0757Z073
P0757Z074
P0757Z075
P0757Z076
P0757Z077
P0757Z078
P0757Z079
P0757Z080
P0757Z081
P0757Z083
P0757Z085
P0757Z088
P0757Z089
P0757Z090
P0757Z091
P0757Z092
P0757Z093
P0757Z094
P0757Z094-1
P0757Z094-2
P0757Z094-3
P0757Z094-4
P0757Z094-5
P0757Z095
P0757Z096
P0757Z097
P0757Z098
P0757Z099
Model G0757Z (Mfd. Since 02/15)
Table
120
154
146
147
111
164
166 169
103
163
167 168 165
104 107
162
162
163
109
164
161
115
165
160 159
102
116
167
168
118
113
169 166 156
105 106 108
110
122 171
116
112
111
113
117
123
114
126
158
108
109
157
137
101
138
136
139
124
151
135
127
144
142
145
131
101 102
112
103
104 105
113
139
126
130
129
107
106
125
137
134
128
113
121
126
153
105
104
103
149
150
103
141
143
155
102
101
170
138
132
133
110 111
Model G0757Z (Mfd. Since 02/15)
-71-
Table Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
HANDLE STEP SCREW M8-1.25 X 12
HANDWHEEL HANDLE
HEX NUT M12-1.75
LOCK WASHER 12MM
HANDWHEEL
BUSHING
SPRING PLATE
CLUTCH
KEY 5 X 5 X 20
GRADUATED DIAL (LH)
CAP SCREW M6-1 X 16
BUSHING
THRUST BEARING 51103
X-AXIS LEADSCREW BRACKET
CAP SCREW M8-1.25 X 25
DOWEL PIN 6 X 25
X-AXIS LEADSCREW NUT
X-AXIS LEADSCREW
TABLE
POWER FEED ASONG AS-235
CAP SCREW M10-1.5 X 25
X-AXIS GRADUATED DIAL (RH)
ROTARY TABLE BASE
X-AXIS GIB
GIB SCREW M8-1.25
SADDLE
Y-AXIS GIB
Y-AXIS LEADSCREW NUT
CAP SCREW M5-.8 X 25
Y-AXIS LEADSCREW
KEY 5 X 5 X 30
Y-AXIS LEADSCREW BRACKET
ANGLE SCALE
ANGLE INDICATOR PLATE
136
137
138
139
141
142
143
144
145
146
147
149
150
151
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
PHLP HD SCR M5-.8 X 10
BALL OILER 8MM PRESS-IN
LOCK PLUNGER
ADJUSTABLE HANDLE M10-1.5 X 25
FLAT WASHER 12MM
T-BOLT M12-1.75 X 42
SADDLE WAY WIPER
WAY WIPER PLATE
PHLP HD SCR M5-.8 X 12
T-NUT M6-1
SLEEVE
TABLE PIVOT PIN
FLAT WASHER 6MM
CAP SCREW M6-1 X 30
COOLANT HOSE CONNECTOR 1/2" NPT
COOLANT HOSE CLAMP 3/4"
COOLANT HOSE 1/2" X 36"
POWER FEED BEARING BRACKET
POWER FEED BEVEL GEAR
BEVEL GEAR NUT
LONGITUDINAL LIMIT SWITCH ASSEMBLY
FLAT WASHER 8MM
CAP SCREW M8-1.25 X 20
TRAVEL STOP SHAFT
COMPRESSION SPRING
TRAVEL STOP T-NUT
TRAVEL STOP
EXT RETAINING RING 7MM
CAP SCREW M6-1 X 16
FLAT WASHER 6MM
FENDER WASHER 8MM
LIMIT SWITCH CORD 3W 18G
POWER FEED POWER CORD 3W 18G
-72-
P0757Z101
P0757Z102
P0757Z103
P0757Z104
P0757Z105
P0757Z106
P0757Z107
P0757Z108
P0757Z109
P0757Z110
P0757Z111
P0757Z112
P0757Z113
P0757Z114
P0757Z115
P0757Z116
P0757Z117
P0757Z118
P0757Z120
P0757Z121
P0757Z122
P0757Z123
P0757Z124
P0757Z125
P0757Z126
P0757Z127
P0757Z128
P0757Z129
P0757Z130
P0757Z131
P0757Z132
P0757Z133
P0757Z134
P0757Z135
P0757Z136
P0757Z137
P0757Z138
P0757Z139
P0757Z141
P0757Z142
P0757Z143
P0757Z144
P0757Z145
P0757Z146
P0757Z147
P0757Z149
P0757Z150
P0757Z151
P0757Z153
P0757Z154
P0757Z155
P0757Z156
P0757Z157
P0757Z158
P0757Z159
P0757Z160
P0757Z161
P0757Z162
P0757Z163
P0757Z164
P0757Z165
P0757Z166
P0757Z167
P0757Z168
P0757Z169
P0757Z170
P0757Z171
Model G0757Z (Mfd. Since 02/15)
Horizontal Spindle
264
258
267
265
259
261
266
216
263
260
213
206
255
202
204
233
256
201
203
257
218
219
215 205 231
222 224
221 223
222
220
262
209
207
232
210
208
228
229
230
217
221
227
235
243
234
211 212
226
225
214
244
245
246
247
248
249
238
244
236
237
242
251
250-2 250-4 250-5
232
252
250
250-1 250-3
241
239
253
250-10
254
250-7 250-6 250-8 250-9
Model G0757Z (Mfd. Since 02/15)
-73-
Horizontal Spindle Parts List
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
P0757Z201
P0757Z202
P0757Z203
P0757Z204
P0757Z205
P0757Z206
P0757Z207
P0757Z208
P0757Z209
P0757Z210
P0757Z211
P0757Z212
P0757Z213
P0757Z214
P0757Z215
P0757Z216
P0757Z217
P0757Z218
P0757Z219
P0757Z220
P0757Z221
P0757Z222
P0757Z223
P0757Z224
P0757Z225
P0757Z226
P0757Z227
P0757Z228
P0757Z229
P0757Z230
P0757Z231
P0757Z232
P0757Z233
P0757Z234
P0757Z235
P0757Z236
P0757Z237
P0757Z238
CAP SCREW M8-1.25 X 25
BALL OILER 8MM PRESS-IN
INBOARD END COVER
HORIZONTAL SPINDLE R-8
TAPERED ROLLER BEARING 32011 P5
HORIZONTAL QUILL
TAPERED ROLLER BEARING 30308 P5
SPANNER LOCK WASHER 39MM
SPANNER NUT M39-1.5
SPACER 4 X 90MM
OUTBOARD END COVER
CAP SCREW M8-1.25 X 25
HORIZONTAL SPINDLE PULLEY
EXT RETAINING RING 35MM
KEY 10 X 8 X 30
V-BELT GATES A33
KEY 6 X 6 X 30
EXT RETAINING RING 20MM
TRANSFER PULLEY
EXT RETAINING RING 28MM
INT RETAINING RING 47MM
BALL BEARING 6005ZZ
SPACER
BEARING SEAT
SPANNER NUT M64-2
UPPER IDLER PULLEY SHAFT
KEY 8 X 8 X 40
UPPER IDLER PULLEY
EXT RETAINING RING 25MM
V-BELT GATES A34
SPANNER NUT LOCKDOWN BAR
CAP SCREW M6-1 X 25
CAP SCREW M8-1.25 X 60
HORIZONTAL MOTOR/PULLEY BRACKET
CAP SCREW M12-1.75 X 80
HEX NUT M16-2
FLAT WASHER 16MM
TENSION ROD END M8-1.25 X 90
239
241
242
243
244
245
246
247
248
249
250
250-1
250-2
250-3
250-4
250-5
250-6
250-7
250-8
250-9
250-10
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
P0757Z239
P0757Z241
P0757Z242
P0757Z243
P0757Z244
P0757Z245
P0757Z246
P0757Z247
P0757Z248
P0757Z249
P0757Z250
P0757Z250-1
P0757Z250-2
P0757Z250-3
P0757Z250-4
P0757Z250-5
P0757Z250-6
P0757Z250-7
P0757Z250-8
P0757Z250-9
P0757Z250-10
P0757Z251
P0757Z252
P0757Z253
P0757Z254
P0757Z255
P0757Z256
P0757Z257
P0757Z258
P0757Z259
P0757Z260
P0757Z261
P0757Z262
P0757Z263
P0757Z264
P0757Z265
P0757Z266
P0757Z267
TENSION ROD END BRACKET
THUMB WHEEL M8-1.25
LOWER IDLER PULLEY SHAFT
TENSION PIVOT ARM
BALL BEARING 6003ZZ
SPACER
INT RETAINING RING 35MM
EXT RETAINING RING 17MM
LOWER IDLER PULLEY
V-BELT A31.5
HORIZONTAL SPINDLE MOTOR 2HP 220V 1-PH
MOTOR FAN COVER
MOTOR FAN
MOTOR JUNCTION BOX
R CAPACITOR 20M 450V 1-5/8 X 3-1/8
S CAPACITOR 150M 250V 1-5/8 X 3-1/8
CENTRIFUGAL SWITCH
CONTACT PLATE
BALL BEARING 6205ZZ (FRONT)
BALL BEARING 6205ZZ (REAR)
MOTOR CORD 5W 14G
KEY 8 X 8 X 45
HORIZONTAL MOTOR PULLEY
LOCK WASHER 8MM
HEX BOLT M8-1.25 X 30
HORIZONTAL ARBOR 1-1/4"
SET SCREW M5-.8 X 8 DOG-PT
SET SCREW M5-.8 X 6
HORIZONTAL ARBOR NUT 1-1/4 X 7TPI
ARBOR SPACER 1-1/4" X 1"
ARBOR SPACER 1-1/4" X 2"
ARBOR SPACER 1-1/4" X 3-1/8"
HORIZONTAL DRAWBAR 7/16-20 X 13-3/4
HORIZONTAL ARBOR 1"
HORIZONTAL ARBOR NUT 1-8
ARBOR SPACER 1" X 1"
ARBOR SPACER 1" X 2"
ARBOR SPACER 1" X 3-1/8"
-74-
Model G0757Z (Mfd. Since 02/15)
Vertical Spindle
356
355
354
315
316
314
301
317
303
313
312
311
302
352
351
353
319
337
336
348
310
338
320
349
321
319
350
322
309
323
324
308
306
339
338
341
342
327
305
307
346 345
347
304
Model G0757Z (Mfd. Since 02/15)
344
325
331
326
327
328
329
332
334
333
330
335
-75-
Vertical Spindle Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
319
320
321
322
323
324
325
326
327
328
HEADSTOCK CASTING
GEAR 50T
CAP SCREW M6-1 X 70
SET SCREW M5-.8 X 6 DOG-PT
SET SCREW M5-.8 X 6
VERTICAL SPINDLE R-8
TAPERED ROLLER BEARING 32010 P5
VERTICAL SPINDLE LOWER OIL CUP
QUILL
RUBBER GASKET 90MM
BALL BEARING 6009ZZ P5
SPANNER NUT TOOTHED WASHER 40MM
SPANNER NUT M40-1.5
CAP SCREW M4-.7 X 8
SPRING CAP
RETURN COIL SPRING
SPRING BASE
SET SCREW M8-1.25 X 16
DOWNFEED GEAR HOUSING
CAP SCREW M8-1.25 X 25
DOWEL PIN 6 X 25
COARSE DOWNFEED GEAR SHAFT 16T
KEY 8 X 8 X 38
WORM GEAR
EXT RETAINING RING 30MM
THUMB SCREW M6-1 X 16
COARSE DOWNFEED GRADUATED DIAL
329
330
331
332
333
334
335
336
337
338
339
341
342
344
345
346
347
348
349
350
351
352
353
354
355
356
COARSE DOWNFEED LEVER HUB
COARSE DOWNFEED LEVER M12-1.75 X 15
COMPRESSION SPRING
LEVER HUB END CAP
CAP SCREW M6-1 X 12
DOWNFEED SELECTION SHAFT
SHAFT HANDLE M8-1.25 X 10
BEARING CAP
CAP SCREW M6-1 X 12
BALL BEARING 6002ZZ
FINE DOWNFEED WORM SHAFT
WORM SHAFT BRACKET
CAP SCREW M6-1 X 20
FINE DOWNFEED GRADUATED DIAL
SET SCREW M6-1 X 12
FINE DOWNFEED HANDWHEEL
HANDWHEEL HANDLE M8-1.25 X 10
INNER QUILL LOCK SLEEVE
OUTER QUILL LOCK SLEEVE
ADJUSTABLE HANDLE M10-1.5 X 90
SET SCREW M10-1.5 X 10
COVER PLATE
CAP SCREW M5-.8 X 10
GEARBOX MOUNTING PLATE
CAP SCREW M10-1.5 X 30
DOWEL PIN 8 X 25
-76-
P0757Z301
P0757Z302
P0757Z303
P0757Z304
P0757Z305
P0757Z306
P0757Z307
P0757Z308
P0757Z309
P0757Z310
P0757Z311
P0757Z312
P0757Z313
P0757Z314
P0757Z315
P0757Z316
P0757Z317
P0757Z319
P0757Z320
P0757Z321
P0757Z322
P0757Z323
P0757Z324
P0757Z325
P0757Z326
P0757Z327
P0757Z328
P0757Z329
P0757Z330
P0757Z331
P0757Z332
P0757Z333
P0757Z334
P0757Z335
P0757Z336
P0757Z337
P0757Z338
P0757Z339
P0757Z341
P0757Z342
P0757Z344
P0757Z345
P0757Z346
P0757Z347
P0757Z348
P0757Z349
P0757Z350
P0757Z351
P0757Z352
P0757Z353
P0757Z354
P0757Z355
P0757Z356
Model G0757Z (Mfd. Since 02/15)
Vertical Gearbox
453-2
453-1
453-3
453
453-4
453-7 453-8
453-5
453-6
459
454
460
455
413
458
459
456
457
414
423
423
412
452
416
450
451
415
411
410
404
409
408
411
407
406
417
417
418
424
419
425
420
420
421
420
417
430
431
426
427
420
432
428
420
417
417
429
417
433
411
437
404
403
403
402
449
401
435
436
438
439
441 440
422
422
422
445
447
446
448
Model G0757Z (Mfd. Since 02/15)
434
443
444
442
-77-
Vertical Gearbox Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
401
402
403
404
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
GEARBOX CASTING
COLLAR
OIL SEAL FB 45 X 62 X 8MM
BALL BEARING 6009-OPEN
GEAR 38T
SPACER
KEY 8 X 8 X 50
SPINDLE SHAFT
RPM SENSOR ROTOR
EXT RETAINING RING 45MM
ROTOR GUARD
CAP SCREW M5-.8 X 16
HEX BOLT M16-2 X 10
GEARBOX COVER
DRIVE SHAFT END CAP
BALL BEARING 6204ZZ
REAR DRIVE SHAFT
GEAR 44T
EXT RETAINING RING 25MM
GEAR 36T
DRIVE SHAFT END CAP
REAR SHAFT END CAP
CENTER DRIVE SHAFT
GEAR 33T
SPACER
GEAR 28T
GEAR 48T
SPACER
FRONT DRIVE SHAFT
GEAR 24T
GEAR 42T/22T
HEX BOLT M10-1.5 X 12
LIFT FORK
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
453-1
453-2
453-3
453-4
453-5
453-6
453-7
453-8
454
455
456
457
458
459
460
ROCKER ARM
EXT RETAINING RING 10MM
DOWEL PIN 5 X 30MM
SMALL SPINDLE
O-RING 12 X 2 P12
O-RING 20 X 2 P20
HIGH/LOW GEAR PLATE
FLAT HD SCR M5-.8 X 12
DOWEL PIN 5 X 50MM
HIGH/LOW GEAR HUB
HIGH/LOW GEAR HANDLE M8-1.25 X 10
STEEL BALL 6MM
COMPRESSION SPRING
SET SCREW M8-1.25 X 12
SIGHTGLASS M27-1.5 X 12
CAP SCREW M10-1.5 X 25
KEY 8 X 8 X 40
GEAR 20T
VERTICAL MOTOR 3HP 220V 3-PH
FAN JUNCTION BOX
MOTOR JUNCTION BOX
FAN COVER
INDEPENDENT MOTOR FAN
FRONT MOTOR BEARING
REAR MOTOR BEARING
MOTOR CORD 5W 14G
FAN CORD 2W 18G
HEX BOLT M12-1.75 X 40
FLAT WASHER 12MM
SPEED SENSOR BRACKET
SPEED SENSOR
SPEED SENSOR COVER
CAP SCREW M4-.7 X 16
LOCK WASHER 12MM
-78-
P0757Z401
P0757Z402
P0757Z403
P0757Z404
P0757Z405
P0757Z407
P0757Z408
P0757Z409
P0757Z410
P0757Z411
P0757Z412
P0757Z413
P0757Z414
P0757Z415
P0757Z416
P0757Z417
P0757Z418
P0757Z419
P0757Z420
P0757Z421
P0757Z422
P0757Z423
P0757Z424
P0757Z425
P0757Z426
P0757Z427
P0757Z428
P0757Z429
P0757Z430
P0757Z431
P0757Z432
P0757Z433
P0757Z434
P0757Z435
P0757Z436
P0757Z437
P0757Z438
P0757Z439
P0757Z440
P0757Z441
P0757Z442
P0757Z443
P0757Z444
P0757Z445
P0757Z446
P0757Z447
P0757Z448
P0757Z449
P0757Z450
P0757Z451
P0757Z452
P0757Z453
P0757Z453-1
P0757Z453-2
P0757Z453-3
P0757Z453-4
P0757Z453-5
P0757Z453-6
P0757Z453-7
P0757Z453-8
P0757Z454
P0757Z455
P0757Z456
P0757Z457
P0757Z458
P0757Z459
P0757Z460
Model G0757Z (Mfd. Since 02/15)
Electrical Components
501
524
502
525
523
523
523
503
509
523
3/L2
1/L1
21
PE
0
R S T
L1 L2 L3
220 230 380 400
Transformer
AFM MO1
MCM
0
24
DZ47-60
C2
OFF ON
23
20
20-25A
NS2-25
RB
RA
V
T2
U
T1
B2
GND
514
504
B1
515
520
520
519
A1
520
A1
1L1
3L2
5L3
13NO
21NC
31NC
43NO
3L2
5L3
13NO
21NC
31NC
43NO
3L2
5L3
13NO
21NC
31NC
22E
32NC
2T1
4T2
6T3
44NO
43NO
3L2
5L3
13NO
21NC
31NC
22NC
32NC
2T1
4T2
6T3
A2
44NO
22NC
32NC
2T1
4T2
6T3
44NO
LW26-25
1
3
520 523
5L3
13NO
21NC
31NC
43NO
1L1
3L2
5L3
13NO
21NC
31NC
22NC
32NC
2T1
4T2
6T3
A2
44NO
A2
43NO
KA Contactor
Siemens 3TB41 24V
KM5 Contactor
Siemens 3TB41 24V
22E
14NO
22E
14NO
22NC
32NC
2T1
4T2
6T3
44NO
A2
14NO
22NC
32NC
2T1
4T2
6T3
44NO
A2
512
523
506
507
3L2
22E
14NO
A2
43NO
513
A1
1L1
KM4 Contactor
Siemens 3TB41 24V
22E
14NO
517
512
A1
1L1
KM3 Contactor
Siemens 3TB41 24V
KM2 Contactor
Siemens 3TB41 24V
22E
22NC
A1
1L1
518
6/T3
520
520
A1
1L1
KM1 Contactor
Siemens 3TB41 24V
14NO
4/T2
516
GND
523
505
506
10V
AVI
+
W
T3
508 507
OFF
QF1 QF2
CHINT
2/T1
ACM
ON
Test
RC
MI2 MI4 MI6 DCM ACM ACI
MI1 MI3 MI5 DCM 24V AVI 10V
DCM
523
14
25
MOTOR MICRO DRIVER
DELTA VFD-E
TC
JBK5-150VA
5/L3
22 13
5
7
522
521
523
525
509
523
508
510
511
504
504
505
505
511
511
526
536
Model G0757Z (Mfd. Since 02/15)
-79-
Electrical Components Cont.
527
530
Minger
LA125H-BE102C
Minger
LA125H-BE101C
Minger
LA125H-BE101C
1 2
3 4
3 4
531
531
530
532
Minger
LA125H-BE102C
Minger
LA125H-BE101C
Minger
LA125H-BE101C
3 4
3 4
1 2
531
531
2 1
529
Minger
LA125J-11
D206A
3 4
Minger
LA125H-BE101C
533
Minger
LA125H-BE102C
535
534
528
GND
+5V
Electrical Components Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
ELECTRICAL BOX W/DOOR
STRAIN RELIEF PG8 TYPE-5
CONDUIT 10MM
STRAIN RELIEF PG10 TYPE-5
CONDUIT 12MM
VENT COVER
VENT FOAM FILTER
VENT BODY
FLAT HD SCR M4-.7 X 6
STRAIN RELIEF PG10 TYPE-3
STRAIN RELIEF PG12 TYPE-3
WIRE LOOM 12"
WIRE LOOM 18"
TRANSFORMER JBK5-150V
VARIABLE FREQUENCY DRIVE DELTA VFD-E
OL RELAY CHINT NS2-25 20-25A
CIRCUIT BREAKER CHINT DZ4760 C2 2P
DIN RAIL 3"
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
DIN RAIL 10"
CONTACTOR SIEMENS 3TB41 24V
ROTARY SWITCH CANSEN LW26-25
TERMINAL BAR 32P
PHLP HD SCR M4-.7 X 6
MOUNTING PLATE
WIRE LOOM 10"
ELECTRICAL BOX LOCK W/KEY
CONTROL PANEL FACEPLATE
RPM READOUT POWER SUPPLY
POTENTIOMETER XINGHUO WXD3 B4K
BUTTON SWITCH MINGER LA125HBE102C RED
BUTTON SWITCH MINGER LA125HBE101C GREEN
RPM READOUT DISPLAY
PUMP SWITCH MINGER LA125HBE101C
E-STOP BUTTON LA125HBE102C
POWER BUTTON MINGER LA125J11D206A
POWER CORD 4W 14G 6 78"
-80-
P0757Z501
P0757Z502
P0757Z503
P0757Z504
P0757Z505
P0757Z506
P0757Z507
P0757Z508
P0757Z509
P0757Z510
P0757Z511
P0757Z512
P0757Z513
P0757Z514
P0757Z515
P0757Z516
P0757Z517
P0757Z518
P0757Z519
P0757Z520
P0757Z521
P0757Z522
P0757Z523
P0757Z524
P0757Z525
P0757Z526
P0757Z527
P0757Z528
P0757Z529
P0757Z530
P0757Z531
P0757Z532
P0757Z533
P0757Z534
P0757Z535
P0757Z536
Model G0757Z (Mfd. Since 02/15)
Accessories
602
601
606
608
605
607
609
603
614
610
604
611
612
617
613
616
615
618
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
601
602
603
604
605
606
607
608
609
BOTTLE FOR OIL
TOOLBOX
SPINDLE SLEEVE MT#3 X MT#2
DRILL CHUCK ARBOR R8 X B16
END MILL ARBOR R8 X 1"
SPINDLE SLEEVE R8 X MT#3
WRENCH 17 X 19MM OPEN-ENDS
WRENCH 22 X 24MM OPEN-ENDS
HEX WRENCH 8MM
610
611
612
613
614
615
616
617
618
HEX WRENCH 6MM
HEX WRENCH 5MM
HEX WRENCH 4MM
HEX WRENCH 3MM
T-BOLT M14-2 X 60
FLAT WASHER 14MM
HEX NUT M14-2
DRILL CHUCK B16 W/CHUCK KEY
DRIFT KEY
P0757Z601
P0757Z602
P0757Z603
P0757Z604
P0757Z605
P0757Z606
P0757Z607
P0757Z608
P0757Z609
Model G0757Z (Mfd. Since 02/15)
P0757Z610
P0757Z611
P0757Z612
P0757Z613
P0757Z614
P0757Z615
P0757Z616
P0757Z617
P0757Z618
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Labels & Cosmetics
704
705
MODEL G0757Z
V.S. HORIZONTAL/
VERTICAL MILL
706
Specifications
Power Requirement: 220V, 1-Ph, 15A, 70 Hz
Vertical Spindle Motor: 3 HP, 220V, 3-Ph, 9.3A
Horiz. Spindle Motor: 2 HP, 220V, 1-Ph, 8.7A
Table Travel: Cross 8-1/2", Long. 23-1/2"
Knee Travel: 12-1/2"
Vertical Spindle to Column Distance: 27-3/4"
Max. Dist. Vertical Spindle to Table: 14-1/2"
Horizontal Spindle to Table Distance: 14-1/8"
Vertical Spindle Travel: 5"
Headstock Tilt: 90° Left/Right
Headstock Rotation Around Column: 180°
Spindle Tapers: R-8
Weight: 1874 lbs.
703
G0757Z
Date
S/N
Manufactured for Grizzly in China
WARNING!
To reduce the risk of serious personal injury when using this machine:
1. Read and understand owner’s manual before operating.
2. Always wear approved safety glasses AND a face shield.
3. Only plug power cord into a grounded outlet.
4. Disconnect power before setting up, adjusting, or servicing.
5. Avoid getting entangled in moving parts—tie back long hair, roll up long
sleeves, and DO NOT wear loose clothing, gloves, or jewelry.
7. Properly set up machine before starting.
7. Always remove adjustment tools before starting.
8. Keep all guards and covers in place during operation.
9. Never use hands to secure workpiece to table during operation—use
clamps or a vise.
10. Avoid positioning hands where they could slip into rotating bits or
tooling if workpiece unexpectedly shifts or you get distracted.
11. Always use a brush or vacuum to remove metal chips; DO NOT use your
hands, rags, or compressed air.
12. Never attempt to slow or stop spindle with hands or tools.
13. Always use proper feeds and speeds for operation and workpiece.
14. Never leave machine running unattended.
15. DO NOT operate when tired or under influence of drugs or alcohol.
17. DO NOT expose to rain or use in wet locations.
17. Prevent unauthorized use by children or untrained users; restrict access
or disable machine when unattended.
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
READ and UNDERSTAND
instruction manual to
avoid serious injury. If a
manual is not available,
DO NOT use machine. Go
to www.grizzly.com or call
(800) 523-4777.
ENTANGLEMENT
HAZARD!
Tie back long hair, roll up
long sleeves, and remove
loose clothing, jewelry, or
gloves to prevent getting
caught in moving parts.
EYE/FACE INJURY
HAZARD!
Always wear
ANSI-approved safety
glasses and face
shield when using this
machine.
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
703
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
702
WARNING!
BIOLOGICAL AND
POISON HAZARD!
Use personal protection
when handling coolant.
Immediately clean up
spills.
707
701
709
701
grizzly.com
708
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
701
702
703
704
705
ELECTRICITY LABEL
BIOHAZARD WARNING LABEL
DISCONNECT WARNING LABEL
GRIZZLY OBLONG NAMEPLATE-SMALL
MACHINE ID LABEL
706
707
708
709
MODEL NUMBER LABEL
GRIZZLY GREEN TOUCH-UP PAINT
GRIZZLY PUTTY TOUCH-UP PAINT
GRIZZLY.COM LABEL
P0757Z701
P0757Z702
P0757Z703
P0757Z704
P0757Z705
P0757Z706
P0757Z707
P0757Z708
P0757Z709
Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes
off or becomes unreadable, the owner of this machine MUST replace it in the original location
before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com.
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Model G0757Z (Mfd. Since 02/15)
WARRANTY CARD
Name _____________________________________________________________________________
Street _____________________________________________________________________________
City _______________________ State _________________________ Zip _____________________
Phone # ____________________ Email _________________________________________________
Model # ____________________ Order # _______________________ Serial # __________________
The following information is given on a voluntary basis. It will be used for marketing purposes to help us develop
better products and services. Of course, all information is strictly confidential.
1.
CUT ALONG DOTTED LINE
2.
How did you learn about us?
____ Advertisement
____ Card Deck
4.
5.
6.
____ Catalog
____ Other:
Which of the following magazines do you subscribe to?
____
____
____
____
____
____
____
____
____
____
3.
____ Friend
____ Website
Cabinetmaker & FDM
Family Handyman
Hand Loader
Handy
Home Shop Machinist
Journal of Light Cont.
Live Steam
Model Airplane News
Old House Journal
Popular Mechanics
____
____
____
____
____
____
____
____
____
____
Popular Science
Popular Woodworking
Precision Shooter
Projects in Metal
RC Modeler
Rifle
Shop Notes
Shotgun News
Today’s Homeowner
Wood
____
____
____
____
____
____
____
Wooden Boat
Woodshop News
Woodsmith
Woodwork
Woodworker West
Woodworker’s Journal
Other:
What is your annual household income?
____ $20,000-$29,000
____ $30,000-$39,000
____ $50,000-$59,000
____ $60,000-$69,000
____ $40,000-$49,000
____ $70,000+
What is your age group?
____ 20-29
____ 50-59
____ 40-49
____ 70+
____ 30-39
____ 60-69
How long have you been a woodworker/metalworker?
____ 0-2 Years
____ 2-8 Years
____ 8-20 Years
____ 20+ Years
How many of your machines or tools are Grizzly?
____ 0-2
____ 3-5
____ 6-9
____ 10+
7.
Do you think your machine represents a good value?
_____ Yes
_____No
8.
Would you recommend Grizzly Industrial to a friend?
_____ Yes
_____No
9.
Would you allow us to use your name as a reference for Grizzly customers in your area?
Note: We never use names more than 3 times.
_____ Yes
_____No
10. Comments: _____________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
FOLD ALONG DOTTED LINE
Place
Stamp
Here
GRIZZLY INDUSTRIAL, INC.
P.O. BOX 2069
BELLINGHAM, WA 98227-2069
FOLD ALONG DOTTED LINE
Send a Grizzly Catalog to a friend:
Name_______________________________
Street_______________________________
City______________State______Zip______
TAPE ALONG EDGES--PLEASE DO NOT STAPLE
WARRANTY & RETURNS
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from
the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any particular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent
that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special,
or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details. We will then issue
you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of the carton. We
will not accept any item back without this number. Proof of purchase must accompany the merchandise.
The manufacturers reserve the right to change specifications at any time because they constantly strive to
achieve better quality equipment. We make every effort to ensure that our products meet high quality and
durability standards and we hope you never need to use this warranty.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.