model g0765 7" x 14" benchtop lathe

MODEL G0765
7" X 14" BENCHTOP LATHE
OWNER'S MANUAL
(For models manufactured since 5/15)
COPYRIGHT © MARCH, 2014 BY GRIZZLY INDUSTRIAL, INC. REVISED MARCH, 2016 (TR)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#BLTSDM16229 PRINTED IN CHINA
V2.03.16
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
Machine Description....................................... 2
Contact Info.................................................... 2
Manual Accuracy............................................ 2
Identification.................................................... 3
Controls & Components.................................. 4
G0765 Data Sheet.......................................... 6
SECTION 1: SAFETY........................................ 8
Safety Instructions for Machinery................... 8
Additional Safety for Metal Lathes................ 10
Additional Chuck Safety................................ 11
SECTION 2: POWER SUPPLY....................... 12
SECTION 3: SETUP........................................ 14
Preparation................................................... 14
Unpacking..................................................... 14
Needed for Setup.......................................... 14
Inventory....................................................... 15
Cleanup......................................................... 16
Site Considerations....................................... 17
Lifting & Placing............................................ 18
Assembly...................................................... 18
Power Connection........................................ 18
Test Run....................................................... 19
Spindle Break-In........................................... 21
Recommended Adjustments......................... 21
SECTION 4: OPERATIONS............................ 22
Operation Overview...................................... 22
Chuck & Faceplate Mounting....................... 23
Installation & Removal Device...................... 23
Chuck Installation......................................... 24
Scroll Chuck Clamping................................. 25
Changing Jaw Set......................................... 25
Faceplate...................................................... 27
Tailstock........................................................ 28
Centers......................................................... 32
Steady Rest.................................................. 34
Compound Rest............................................ 35
Four-Way Tool Post...................................... 35
Manual Feed................................................. 37
Spindle Speed.............................................. 37
Power Feed.................................................. 39
End Gears..................................................... 41
Threading...................................................... 44
SECTION 5: ACCESSORIES.......................... 47
SECTION 6: MAINTENANCE.......................... 48
Schedule....................................................... 48
Cleaning/Protecting....................................... 48
Lubrication.................................................... 49
Machine Storage........................................... 51
SECTION 7: SERVICE.................................... 52
Troubleshooting............................................ 52
Backlash Adjustment.................................... 54
Leadscrew End-Play Adjustment.................. 54
Gib Adjustment............................................. 55
Half Nut Adjustment...................................... 56
Fuse Replacement........................................ 56
Brush Replacement...................................... 57
Timing Belt Tension & Replacement............ 58
SECTION 8: WIRING....................................... 60
Wiring Safety Instructions............................. 60
Control Panel Wiring..................................... 61
Control Panel Wiring Photos........................ 62
Motor/Speed Sensor/ Plug Wiring................ 63
SECTION 9: PARTS........................................ 64
Main.............................................................. 64
Steady Rest.................................................. 67
Labels & Cosmetics (Front).......................... 68
Labels & Cosmetics (Rear)........................... 69
SECTION 10: APPENDIX................................ 70
Threading Charts.......................................... 70
WARRANTY & RETURNS.............................. 73
INTRODUCTION
Machine Description
Manual Accuracy
The metal lathe is used to remove material from
a workpiece that is mounted to the spindle and
rotated over the bed. The cutting tool is mounted
alongside the bed and moved against the spinning workpiece to cut it.
We are proud to provide a high-quality owner’s
manual with your new machine!
Typical metal lathe cutting operations include facing, turning, parting, drilling, reaming, grooving,
knurling, and threading. There are a wide variety
of tools and workpiece holding devices available
for each of these operations.
The G0765 features an electronic variable-speed
control and digital RPM display that make it possible to select speeds within the selected range
while the machine is running.
Contact Info
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.
Grizzly Technical Support
1815 W. Battlefield
Springfield, MO 65807
Phone: (570) 546-9663
Email: techsupport@grizzly.com
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.
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
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: manuals@grizzly.com
-2-
Model G0765 (Mfd. Since 5/15)
Identification
Become familiar with the names and locations of the controls and features shown below to better understand
the instructions in this manual.
D
C
A
B
F
E
G
I
H
J
W
K
V
L
U
T
S
R
P
Q
O
N
M
Figure 1. Model G0765 identification.
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
On/Off Switch w/Emergency Stop Button
Power Light
High/Low Range Lever
Feed Direction Lever
3-Jaw Chuck
Steady Rest
4-Way Tool Post
Backsplash
Compound Rest
MT#2 Dead Center
Tailstock (see Page 6 for details)
Bedway
Serious personal injury could occur if
you connect the machine to power before
completing the setup process. DO NOT
connect power until instructed to do so later
in this manual.
Model G0765 (Mfd. Since 5/15)
M.
N.
O.
P.
Q. R.
S.
T.
U.
V.
W.
Compound Rest Handwheel
Chip Pan
Thread Dial
Half Nut Lever
Cross Slide Handwheel
Carriage Handwheel
Leadscrew
Spindle Direction Switch
Fuse
Variable Speed Dial
End Cover
Untrained users have an increased risk
of seriously injuring themselves with this
machine. Do not operate this machine until
you have understood this entire manual and
received proper training.
-3-
Controls &
Components
Carriage
G
H
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Refer to Figures 2–6 and the following descriptions to become familiar with the basic controls of
this lathe.
Control Panel
A
B
C
L
K
J
I
Figure 3. Carriage controls.
G. 4-Way Tool Post: Holds up to four cutting
tools at once that can be individually indexed
to the workpiece.
H. Compound Rest Handwheel: Moves the
tool toward and away from the workpiece at
the preset angle of the compound rest.
I. Thread Dial: Indicates when to engage the
half nut during threading operations.
F
E
D
Figure 2. Control panel.
A. On/Off Switch w/Emergency Stop Button:
When pressed, cuts power to motor and
control panel. To reset, press in side tab, lift
switch cover, and press On button.
J. Half Nut Lever: Engages/disengages half
nut for power feed and threading operations.
K. Cross Slide Handwheel: Moves the cross
slide toward and away from the workpiece.
L. Carriage Handwheel: Moves the carriage
along the bedway.
B. Spindle Speed RPM Display: Shows a digital readout of the spindle speed.
C. Power Light: Illuminates when machine is
connected to power source, Emergency Stop
Button is reset, and On button is pressed.
D. Spindle Switch: Starts, stops, and reverses
spindle rotation.
E. Fuse: Protects control panel in case of an
electrical overload.
F. Variable Speed Dial: Controls the variable
speed of the spindle.
-4-
Model G0765 (Mfd. Since 5/15)
Tailstock
Rear Controls
N
M
T
O
U
P
Q
S
R
Figure 4. Tailstock controls.
M. Tailstock Quill: Moves a tool or center
mounted in the tailstock toward or away from
the workpiece.
N. Tailstock Quill Lock Lever: Secures the
quill position.
O. Tailstock Lock Lever: Secures tailstock in
position along the bedway.
P. Graduated Scale: Indicates quill movement
in increments of 0.001", with one full revolution equaling 0.04" of quill travel.
Figure 5. Rear controls.
T. High/Low Range Lever: Sets the spindle
speed range to LOW (100–1000 RPM) or
HIGH (100–2000 RPM). Do NOT shift while
lathe is running or damage to machine may
occur!
U. Feed Direction Lever: Used to select
leadscrew rotation direction. Up is for clockwise rotation and leftward carriage movement. Center is neutral. Down is for counterclockwise leadscrew rotation and rightward
carriage movement.
End Gears
Q. Quill Handwheel: Moves quill toward or
away from spindle.
R. Offset Scale: Indicates relative distance of
tailstock offset from spindle centerline.
S. Tailstock Offset Screws: Adjusts tailstock
offset left or right from spindle centerline (1 of
2).
End
Gears
Figure 6. End gear components.
Configuring the end gears (shown in Figure
6) controls the speed of the leadscrew for threading or power feed operations.
Model G0765 (Mfd. Since 5/15)
-5-
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G0765 7" X 14" VARIABLE‐SPEED BENCHTOP
LATHE
Product Dimensions:
Weight................................................................................................................................................................ 88 lbs.
Width (side-to-side) x Depth (front-to-back) x Height............................................................................. 30 x 9 x 10 in.
Footprint (Length x Width)................................................................................................................. 29-3/4 x 8-1/2 in.
Shipping Dimensions:
Type.......................................................................................................................................................... Wood Crate
Content........................................................................................................................................................... Machine
Weight.............................................................................................................................................................. 110 lbs.
Length x Width x Height....................................................................................................................... 33 x 15 x 15 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement........................................................................................................... 110V, Single-Phase, 60 Hz
Full-Load Current Rating........................................................................................................................................ 10A
Minimum Circuit Size.............................................................................................................................................. 15A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length................................................................................................................................................. 6 ft.
Power Cord Gauge......................................................................................................................................... 18 AWG
Plug Included.......................................................................................................................................................... Yes
Included Plug Type.................................................................................................................................... NEMA 5-15
Switch Type........................................................................................... ON/OFF Push Button Switch w/Safety Cover
Motors:
Main
Type................................................................................................................................. Universal Brush Type
Horsepower............................................................................................................................................. 3/4 HP
Phase............................................................................................................................................ Single-Phase
Amps............................................................................................................................................................ 10A
Speed................................................................................................................................................ 5000 RPM
Power Transfer .................................................................................................................................. Belt Drive
Bearings........................................................................................................... Shielded & Permanently Sealed
Main Specifications:
Operation Info
Swing Over Bed........................................................................................................................................... 7 in.
Distance Between Centers.................................................................................................................. 13-3/4 in.
Swing Over Cross Slide......................................................................................................................... 2-1/8 in.
Swing Over Saddle...................................................................................................................................... 5 in.
Maximum Tool Bit Size........................................................................................................................... 5/16 in.
Compound Travel.................................................................................................................................. 2-3/4 in.
Carriage Travel.................................................................................................................................... 12-1/2 in.
Cross Slide Travel................................................................................................................................. 2-3/4 in.
Model G0765
-6-
The information contained herein is deemed accurate as of 3/21/2017 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased.
PAGE 1 OF 3
Model G0765 (Mfd. Since 5/15)
Headstock Info
Spindle Bore........................................................................................................................................... 0.78 in.
Spindle Size................................................................................................................................................. 3 in.
Spindle Taper............................................................................................................................................ MT#3
Number of Spindle Speeds................................................................................................................... Variable
Spindle Speeds....................................................................................................................... 100 – 2000 RPM
Spindle Type........................................................................................................................ Intrinsic Back Plate
Spindle Bearings...................................................................... Sealed & Permanently Lubricated Ball Bearing
Spindle Length....................................................................................................................................... 7-1/4 in.
Spindle Length with 3-Jaw Chuck......................................................................................................... 9-1/8 in.
Tailstock Info
Tailstock Quill Travel................................................................................................................................... 2 in.
Tailstock Taper.......................................................................................................................................... MT#2
Tailstock Barrel Diameter..................................................................................................................... 0.870 in.
Threading Info
Number of Longitudinal Feeds......................................................................................................................... 1
Range of Longitudinal Feeds......................................................................................................... 0.004 in./rev.
Number of Inch Threads................................................................................................................................. 18
Range of Inch Threads.................................................................................................................... 12 – 52 TPI
Number of Metric Threads.............................................................................................................................. 10
Range of Metric Threads.................................................................................................................. 0.4 – 2 mm
Dimensions
Bed Width.............................................................................................................................................. 3-1/4 in.
Carriage Leadscrew Diameter.................................................................................................................. 5/8 in.
Leadscrew TPI......................................................................................................................................... 16 TPI
Carriage Leadscrew Length................................................................................................................ 19-3/4 in.
Steady Rest Capacity.................................................................................................................................. 2 in.
Other
Optional Stand......................................................................................................................................... D3640
Construction
Base..................................................................................................................................................... Cast Iron
Headstock............................................................................................................................................ Cast Iron
End Gears.......................................................................................... Machine-Cut Plastic (Polyoxymethylene)
Bed.......................................................................................................................... Precision-Ground Cast Iron
Body..................................................................................................................................................... Cast Iron
Paint Type/Finish...................................................................................................................................... Epoxy
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ........................................................................................................ 45 Minutes
Serial Number Location .................................................................................................................................. ID Label
Sound Rating ..................................................................................................................................................... 76 dB
ISO 9001 Factory .................................................................................................................................................. Yes
Certified by a Nationally Recognized Testing Laboratory (NRTL) .......................................................................... No
Model G0765
The information contained herein is deemed accurate as of 3/21/2017 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased.
Model G0765 (Mfd. Since 5/15)
PAGE 2 OF 3
-7-
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.
-8-
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 G0765 (Mfd. Since 5/15)
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 G0765 (Mfd. Since 5/15)
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.
-9-
Additional Safety for Metal Lathes
Serious injury or death can occur from getting entangled in, crushed between, or struck by
rotating parts on a lathe! Unsecured tools or workpieces attached to rotating objects can also
strike nearby operators with deadly force. To minimize the risk of getting hurt or killed, anyone
operating this machine MUST completely heed the hazards and warnings below.
CLOTHING, JEWELRY & LONG HAIR. Tie back
long hair, remove jewelry, and do not wear loose
clothing or gloves. These can easily get caught on
rotating parts and pull you into lathe.
LONG STOCK SAFETY. Long stock can whip
violently if not properly supported. Always support
any stock that extends from the chuck/headstock
more than three times its own diameter.
ROTATING PARTS. Always keep hands and body
at a safe distance from rotating parts—especially
those with projecting surfaces. Never hold anything against rotating workpiece, such as emery
cloth, that can pull you into lathe.
CLEARING CHIPS. Metal chips can be razor
sharp. Avoid clearing them by hand or with a rag.
Use a brush or vacuum instead.
GUARDING. Guards and covers protect against
entanglement or flying objects. Always ensure they
are properly installed while machine is running.
ADJUSTMENT TOOLS. Remove all chuck keys,
wrenches, and adjustment tools before turning
lathe ON. A tool left on the lathe can become a
deadly projectile when spindle is started.
SAFE CLEARANCES. Before starting spindle,
verify workpiece has adequate clearance by handrotating it through its entire range of motion.
NEW SETUPS. Test each new setup by starting
spindle rotation at the lowest speed and standing
to the side of the lathe until workpiece reaches full
speed and you can verify safe rotation.
SPINDLE SPEEDS. Using spindle speeds that are
too fast for the workpiece or clamping equipment
can cause rotating parts to come loose and strike
nearby people with deadly force. Always use slow
spindle speeds with large or non-concentric workpieces. Never exceed rated RPM of the chuck.
CHUCKS. Chucks can be heavy and difficult to
hold. During installation and removal, protect your
hands and precision bed ways by using a chuck
cradle or piece of plywood over the bed ways. Use
lifting equipment, as necessary, for large chucks.
-10-
SECURE WORKPIECE. An improperly secured
workpiece can fly off spindle with deadly force.
Make sure workpiece is properly secured before
starting the lathe.
STOPPING SPINDLE. Always allow spindle to
completely stop on its own, or use a brake, if
provided. Never put hands or another object on a
spinning workpiece to make it stop faster.
CRASHING. A serious explosion of metal parts
can occur if cutting tool or other lathe component
hits rotating chuck or a projecting part of workpiece. Resulting metal fragments can strike nearby
people and lathe will be seriously damaged. To
reduce risk of crashing, ALWAYS release automatic feeds after use, NEVER leave lathe unattended,
and CHECK all clearances before starting lathe.
TOOL SELECTION. Cutting with incorrect or dull
tooling increases risk of injury from broken or dislodged components, or as a result of extra force
required for operation. Always use sharp tooling
that is right for the job.
SANDING/POLISHING. To reduce risk of entanglement, never wrap emery cloth around rotating
workpiece. Instead, use emery cloth with the aid
of a tool or backing board.
MEASURING WORKPIECE. To reduce risk of
entanglement, never measure rotating workpieces.
Model G0765 (Mfd. Since 5/15)
Additional Chuck Safety
ENTANGLEMENT. Entanglement with a rotating chuck can lead to death, amputation, broken
bones, or other serious injury. Never attempt to
slow or stop the lathe chuck by hand, and always
roll up long sleeves, tie back long hair, and remove
any jewelry or loose apparel BEFORE operating.
CHUCK SPEED RATING. Excessive spindle
speeds greatly increase the risk of the workpiece
or chuck being thrown from the machine with
deadly force. Never use spindle speeds faster than
the chuck RPM rating or the safe limits of your
workpiece.
USING CORRECT EQUIPMENT. Many workpieces can only be safely turned in a lathe if additional
support equipment, such as a tailstock or steady/
follow rest, is used. If the operation is too hazardous to be completed with the lathe or existing
equipment, the operator must have enough experience to know when to use a different machine or
find a safer way.
TRAINED OPERATORS ONLY. Using a chuck
incorrectly can result in workpieces coming loose
at high speeds and striking the operator or bystanders with deadly force. To reduce the risk of this hazard, read and understand this document and seek
additional training from an experienced chuck user
before using a chuck.
Model G0765 (Mfd. Since 5/15)
CHUCK CAPACITY. Avoid exceeding the capacity
of the chuck by clamping an oversized workpiece.
If the workpiece is too large to safely clamp with
the chuck, use a faceplate or a larger chuck if possible. Otherwise, the workpiece could be thrown
from the lathe during operation, resulting in serious
impact injury or death.
CLAMPING FORCE. Inadequate clamping force
can lead to the workpiece being thrown from the
chuck and striking the operator or bystanders.
Maximum clamping force is achieved when the
chuck is properly maintained and lubricated, all
jaws are fully engaged with the workpiece, and
the maximum chuck clamping diameter is not
exceeded.
PROPER MAINTENANCE. All chucks must be
properly maintained and lubricated to achieve
maximum clamping force and withstand the rigors
of centrifugal force. To reduce the risk of a thrown
workpiece, follow all maintenance intervals and
instructions in this document.
DISCONNECT POWER. Serious entanglement or
impact injuries could occur if the lathe is started
while you are adjusting, servicing, or installing the
chuck. Always disconnect the lathe from power
before performing these procedures.
-11-
SECTION 2: POWER SUPPLY
Availability
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 electrician or
qualified service personnel in accordance with all
applicable codes and standards.
Electrocution, fire, shock,
or equipment damage
may occur if machine is
not properly grounded
and connected to 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 Rating...........................................10A
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.
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 specified circuit requirements.
-12-
Serious injury could occur if you connect
machine to power before completing setup
process. DO NOT connect to power until
instructed later in this manual.
110V Circuit Requirements
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
Nominal Voltage..................... 110V, 115V, 120V
Cycle...........................................................60 Hz
Phase............................................ Single-Phase
Power Supply Circuit.......................... 15 Amps
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: Circuit requirements in this manual apply to
a dedicated circuit—where only one machine will
be running on the circuit at a time. If machine will
be connected to a shared circuit where multiple
machines may be running at the same time, consult an electrician or qualified service personnel to
ensure circuit is properly sized for safe operation.
Model G0765 (Mfd. Since 5/15)
Grounding & Plug Requirements
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.
This machine is equipped with a power cord that
has an equipment-grounding wire and a grounding
plug. Only insert plug into a matching receptacle
(outlet) that is properly installed and grounded in
accordance with all local codes and ordinances.
DO NOT modify the provided plug!
GROUNDED
5-15 RECEPTACLE
Grounding Prong
5-15 PLUG
Neutral Hot
Figure 7. Typical 5-15 plug and receptacle.
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 can
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).
Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:
SHOCK HAZARD!
Two-prong outlets do not meet the grounding
requirements for this machine. Do not modify
or use an adapter on the plug provided—if
it will not fit the outlet, have a qualified
electrician install the proper outlet with a
verified ground.
Model G0765 (Mfd. Since 5/15)
Minimum Gauge Size............................14 AWG
Maximum Length (Shorter is Better).......50 ft.
-13-
SECTION 3: SETUP
Preparation
The list below outlines the basic process of preparing your machine for operation. Specific steps
are covered later in this section.
SUFFOCATION HAZARD!
Keep children and pets away
from plastic bags or packing
materials shipped with this
machine. Discard immediately.
The typical preparation process is as follows:
1. Unpack lathe and inventory contents of box/
crate.
2. Clean lathe and its components.
3. Identify an acceptable location for lathe and
move it to that location.
4. Assemble loose components and make any
necessary adjustments or inspections to
ensure lathe is ready for operation.
5. Connect lathe to power source.
Needed for Setup
The following are needed to complete the setup
process, but are not included with your machine.
DescriptionQty
• Additional People........................................ 1
• Safety Glasses................ 1 For Each Person
• Cleaner/Degreaser (Page 18)..... As Needed
• Quality Metal Protectant.............. As Needed
• Disposable Shop Rags................ As Needed
6. Test run lathe to ensure it functions properly.
7. Perform spindle break-in procedure to prepare lathe for operation.
Unpacking
This machine was carefully packaged for safe
transport. When unpacking, separate all enclosed
items from packaging materials and inspect them
for shipping damage. If items are damaged,
please call us immediately at (570) 546-9663.
IMPORTANT: Save all packaging materials until
you are completely satisfied with the machine and
have resolved any issues between Grizzly or the
shipping agent. You MUST have the original packaging to file a freight claim. It is also extremely
helpful if you need to return your machine later.
-14-
Model G0765 (Mfd. Since 5/15)
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.
Installed Components (Figure 8)
Qty.
A. 3" Three-Jaw Chuck w/Internal Jaw Set..... 1
B. Steady Rest................................................. 1
C. 4-Way Tool Post.......................................... 1
D. Compound Rest.......................................... 1
E. Tailstock....................................................... 1
F. Chip Tray..................................................... 1
G. Feet (not shown).......................................... 4
A
B
C
D
— Change Gear (57-tooth)................................. 1
— Change Gear (60-tooth).......................... 1
— Change Gear (65-tooth).......................... 1
— Change Gear (80-tooth, Installed).......... 2
S. 61⁄4" Faceplate.............................................. 1
I
H
J
K
Q
L
P
M
O
N
Figure 9. Packaged components.
E
R
F
Figure 10. Change gears.
Figure 8. Installed components.
Packaged Components (Figures 9–11) Qty.
H. Hex Wrench Set (2.5, 3, 4, 5, 6mm).......1 Ea
I. Wrench Set (6/7, 8/10, 13/16mm)...........1 Ea
J. Bottle for Oil................................................ 1
K. 3-Jaw Chuck External Jaw Set................... 1
L. Dead Center MT#3...................................... 1
M. Dead Center MT#2 . ................................... 1
N. Fuse............................................................. 1
O. Cross Slide Handwheel Handle.................. 1
P. Carriage Handwheel Handle....................... 1
Q. 3-Jaw Chuck Key........................................ 1
R. Change Gear Set........................................ 1
— Change Gear (20-tooth, Installed).......... 1
— Change Gear (30-tooth).......................... 1
— Change Gear (35-tooth).......................... 1
— Change Gear (40-tooth).......................... 2
— Change Gear (45-tooth).......................... 1
— Change Gear (50-tooth).......................... 1
— Change Gear (55-tooth).......................... 1
Model G0765 (Mfd. Since 5/15)
S
Figure 11. Faceplate.
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.
-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)
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 your machine during clean up.
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.
-16-
Figure 12. T23692 Orange Power Degreaser.
Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a quality
metal protectant to prevent rust.
Model G0765 (Mfd. Since 5/15)
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.
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 enough space
around machine to disconnect power supply or
apply a lockout/tagout device, if required.
Lighting
Children or untrained people
may be seriously injured by
this machine. Only install in an
access restricted location.
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.
301/2"
Lathe
Keep
Workpiece
Loading Area
Unobstructed
121/2"
= Electrical Connection
Illustration Not To Scale
Figure 13. Minimum working clearances.
Model G0765 (Mfd. Since 5/15)
-17-
Lifting & Placing
HEAVY LIFT!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this
risk, get help from another
person.
With the help of another person, lift the machine
to a suitable location.
Assembly
With the exception of the handwheel handles, the
lathe is shipped fully assembled.
Power Connection
Before the machine can be connected to the
power source, all previous setup instructions in
this manual must be completed to ensure that
the machine has been assembled and installed
properly.
Connecting Power
Always make sure the spindle dial on the headstock is turned to "0" (rotated fully counterclockwise) before connecting power.
Insert the power cord plug into a matching power
supply receptacle.
Disconnecting Power
If you need to disconnect the machine from power
for maintenance, service, or adjustments, turn the
machine OFF and pull the plug completely out of
the receptacle.
Thread the handles into the cross slide handwheel
and carriage handwheel, (see Figure 14).
Cross Slide
Handwheel
Carriage
Handle
Figure 14. Handwheel handles installed.
-18-
Model G0765 (Mfd. Since 5/15)
Test Run
2. Shift high/low range lever on back of lathe to
LOW, and feed direction lever to neutral (see
Figure 16).
Once assembly is complete, test run the machine
to ensure it is properly connected to power and
safety components are functioning correctly.
High/Low
Range Lever
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.
Feed
Direction
Lever
Feed Direction Lever
UP (Clockwise Rotation)
CENTER (Neutral)
DOWN (CCW Rotation)
High/Low
Range Lever
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.
HIGH
LOW
Figure 16. Lever settings.
To test run machine:
1. Set spindle direction switch to neutral ("0"
position), and turn variable speed dial all the
way counterclockwise to "0".
3. Make sure chuck and jaws, if installed, are
secure (see Chuck Installation on Page 26).
Note: If a chuck is not installed on the lathe,
you do not need to install one for this test run.
Emergency
Stop Button
Variable Speed Dial
Set to "0"
Spindle Direction
Switch Set to "0"
Figure 15. Headstock controls.
Model G0765 (Mfd. Since 5/15)
-19-
4. Disengage half nut with lever shown in
Figure 17.
Thread Dial
Half Nut
Lever
Disengaged
Halfnut
Lever
Engaged
Figure 17. Half nut lever disengaged.
5. Press tab in on side of Emergency Stop
button, lift switch cover, and press green
ON button to reset Emergency Stop button.
The spindle speed display and power button
should illuminate to indicate that lathe is connected to power supply.
-20-
6. Verify lathe is operating correctly by turning spindle direction switch to "F" position.
Slowly turn variable speed dial clockwise
until spindle speed display shows 100 RPM.
The spindle should rotate counterclockwise—
down and toward the front of the lathe.
7. Push Emergency Stop button to turn lathe
OFF. Then, without resetting Emergency
Stop button, try to restart spindle rotation by
turning variable speed dial all the way counterclockwise to "0" and then clockwise. The
spindle should not start.
—If spindle does start with Emergency Stop
button pressed in, the button is not operating correctly. This safety feature must
operate properly before continuing operation. Turn variable speed dial counterclockwise to "0" to stop lathe, disconnect it from
power, and call Tech Support for help.
Congratulations! The test run is complete. Turn
lathe OFF and perform the following Spindle
Break-In procedure.
Model G0765 (Mfd. Since 5/15)
Before
Before subjecting
subjecting the
the spindle
spindle to
to operational
operational loads,
loads,
itit is
essential
to
complete
the
break-in
is essential to complete the break-in process.
process.
This
This helps
helps maximize
maximize the
the life
life of
of spindle
spindle bearings
bearings
and
other
precision
components
by
thoroughly
and other precision components by thoroughly
lubricating
lubricating them
them before
before placing
placing them
them under
under load.
load.
Before subjecting the spindle to operational loads,
it is essential
to complete
the break-in
process.
After
After spindle
spindle break-in
break-in is
is complete,
complete, we
we recommend
recommend
This helpsheadstock
maximize the life
of spindletobearings
changing
changing headstock and
and gearbox
gearbox oil
oil to remove
remove
and
other
precision
components
by
thoroughly
any
any metal
metal particles
particles or
or debris
debris that
that are
are present
present from
from
lubricating
them before
placing them under load.
the
the assembly
assembly and
and break-in
break-in process.
process.
Recommended
Adjustments
Spindle Break-In
After break-in
spindle break-inbeis performed
complete, we recommend
The
The break-in must
must be performed in
in succession
succession
changing
headstock
and
gearbox
oil to remove
with
with the
the Test
Test Run
Run procedure
procedure described
described in
in this
this
any metalasparticles
or debris
that
are present
from
manual,
the
steps
in
that
procedure
prepare
manual, as the steps in that procedure prepare
the lathe
assembly andfor
break-in
process.
the
the lathe controls
controls for the
the break-in
break-in process.
process.
The break-in must be performed in succession
with the Test Run procedure described in this
manual,
as perform
the stepsthis
in that
procedure
prepare
DO
NOT
procedure
indepenDO
NOT
perform
this
procedure
indepenthe
lathe controls
for the break-in
process. lathe
dently
dently of
of the
the Test
Test Run
Run section.
section. The
The lathe
could
could be
be seriously
seriously damaged
damaged if
if the
the controls
controls
are
are set
set differently
differently than
than instructed
instructed in
in that
that
section.
section.
DO NOT perform this procedure independently of the Test Run section. The lathe
could
be seriously
damaged
if the controls
To
perform
the spindle
break-in:
are set differently than instructed in that
section.
1.
Successfully complete the Test Run procedure beginning on Page 21.
The following adjustments have been made at the
factory. However, because of the many variables
involved with shipping, we recommend you verify
these adjustments to ensure the best results:
Factory adjustments that should be verified:
•
•
•
Tailstock alignment (Page 32).
Cross slide backlash adjustment (Page 56).
Gib adjustments (Page 57).
2. Set spindle direction switch to "F" (forward),
ensure range lever is in LOW, and operate
lathe for 10 minutes at 100 RPM.
3. Operate lathe at 1000 RPM for 10 minutes,
then turn variable speed dial to "0" to stop
spindle.
4. Shift range control lever to HIGH, then operate lathe at 2000 RPM for 10 minutes, then
stop spindle.
5. Run lathe in reverse at 2000 RPM for 10 minutes, then turn speed dial to "0", turn spindle
direction switch to "0", and press Emergency
Stop button.
Congratulations! Spindle break-in is complete.
Model G0765 (Mfd. Since 5/15)
-21-
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 complete a typical operation, the operator
does the following:
1. Puts on safety glasses, rolls up sleeves,
removes jewelry, and secures any clothing or
hair that could get entangled in moving parts.
2. Examines workpiece to make sure it is suitable for turning, then securely mounts it in
lathe.
3. Installs tooling, aligns it with workpiece, then
backs it away to establish a safe startup
clearance.
4. Removes all setup tools from lathe.
5. Checks for safe clearances by rotating
workpiece by hand at least one full revolution.
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
To reduce the risk of
eye injury from flying
chips always wear safety
glasses.
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.
-22-
6. Moves slides to where they will be used during operation.
7. If using power feed, selects appropriate feed
rate and direction.
8. Resets Emergency Stop button and turns
spindle direction switch to "F".
9. Rotates variable speed dial to set correct
spindle speed.
10. Uses carriage handwheels or power feed
options to move the tooling into workpiece for
operations.
11. When finished turning, rotates variable speed
dial to "0" to stop spindle, presses Emergency
Stop button, then removes workpiece.
Model G0765 (Mfd. Since 5/15)
Chuck & Faceplate
Mounting
Installation &
Removal Device
This lathe is equipped with an intrinsic backplate
spindle nose. With this type of spindle, a chuck or
faceplate is mounted directly to the backplate with
hex nuts.
Place a piece of plywood over the bedways to protect them from damage if a chuck or other tooling
is dropped (see below).
Never use spindle speeds faster than chuck
RPM rating or safe limits of your workpiece.
Excessive
spindle
greatly
This
lathe ships
with speeds
the 3-jaw
chuckincrease
installed.
risk isofa workpiece
or chuck
being
thrown
This
scroll-type chuck
where
all three
jaws
frominmachine
with deadly
force!
move
unison when
the chuck
key is used.
Plywood Protection
Plate for Chucks
Installed by Hand
Figure 18. Example of common device used
during chuck installation and removal.
The included 4-jaw chuck features independent
This lathe
chuck
installed.
jaws,
whichships
are with
usedthe
for 3-jaw
square
or unevenlyThis
is
a
scroll-type
chuck
where
all
three
jaws
shaped stock, and to mount work that needs to
be
move
in
unison
when
the
chuck
key
is
used.
adjusted to near-zero total indicated runout.
The included
included faceplate
4-jaw chuck
The
hasfeatures
slots forindependent
T-bolts that
jaws,
which
are
used
for
square
or
unevenlyhold standard or custom clamping hardware.
With
shaped
stock,
and
to
mount
work
that
needs
to be
the correct clamping hardware, a faceplate offers
adjusted
to near-zero
indicated
runout. nona wide range
of uses,total
including
machining
concentric workpieces, straight turning between
The
included
faceplate
hasand
slots
for T-bolts that
centers,
off-center
turning,
boring.
hold standard or custom clamping hardware. With
the correct clamping hardware, a faceplate offers
a wide range of uses, including machining nonconcentric workpieces, straight turning between
centers, off-center turning, and boring.
Model G0765 (Mfd. Since 5/15)
-23-
Chuck Installation
To ensure accurate work, it is extremely important
to make sure the spindle nose and chuck mating
surfaces are clean. Even a small amount of lint or
debris can affect accuracy.
4. Insert chuck screws through mounting holes
in spindle backplate, as shown in Figure 20.
Make sure chuck seats firmly and evenly
against backplate shoulder.
Intrinsic
Backplate
Chuck Screw
The chuck is properly installed when it is seated
against the backplate shoulder (see Figure 19
below).
Backplate
Shoulder
Mounting
Hole
Figure 20. Inserting chuck into backplate.
Inside
Taper
5. Use a lock washer and hex nut on each
chuck screw to secure chuck (see Figure
21). Tighten hex nuts evenly a small amount
at a time in multiple steps.
Figure 19. Spindle backplate.
Qty
Tools Needed:
Open-End Wrench 10mm................................... 1
Hex Nut
To install the chuck:
1. DISCONNECT LATHE FROM POWER!
2. Use an appropriate device to protect ways during installation process (refer to Installation
& Removal Device on Page 25).
Lock Washer
Figure 21. Chuck secured against backplate.
3. Thoroughly clean and wipe-down all mating
surfaces with a lightly-oiled, lint-free rag.
-24-
Model G0765 (Mfd. Since 5/15)
Scroll Chuck
Clamping
This 3-jaw, scroll-type chuck has an internal scrollgear that moves all jaws in unison when adjusted
with the chuck key. This chuck holds cylindrical
parts on-center with the axis of spindle rotation
and can be rotated at high speeds if the workpiece
is properly clamped and balanced.
Never mix jaw types or positions to
accommodate an odd-shaped workpiece. The
chuck will spin out of balance and may throw the
workpiece! Instead, use an independent jaw chuck
or a faceplate.
Insufficient
Jaw Clamping
Safer Inside
Jaw Use
Changing Jaw Set
The 3-jaw scroll chuck included with the lathe
features inside and outside hardened steel jaw
sets (see Figure below), which move in unison to
center a concentric workpiece.
When installing the jaws, it is important to make
sure they are installed correctly. Incorrect installation will result in jaws that do not converge evenly
and are unable to securely clamp a workpiece.
Unstable
Workpiece
Bar Stock
CORRECT
INCORRECT
Unsafe Jaw Position and
Poor Scroll Gear Engagement
Poor Grip
Safer Outside
Jaw Use
Shallow
Bar Stock
Unstable
Workpiece
CORRECT
Outside Set
Inside Set
Figure 23. Chuck and jaw selection.
Jaws are numbered from 1–3 (see Figure below).
The number is typically stamped on the side or
bottom. Jaws are designed to be installed counterclockwise in numerical order in the jaw guides,
so they will hold a concentric workpiece evenly.
INCORRECT
Unsafe Inside
Jaw Use
Safer Outside
Jaw Use
Poor Scroll
Gear
Engagement
Jaw Numbers
Unsafe Jaw
Position
INCORRECT
3
CORRECT
2
1
Shallow
Bar Stock
Jaw Guides
Unsafe Jaw Position
Safer Inside
Jaw Use
Figure 24. Jaw guide and jaw numbers.
Cylinder
Poor Scroll
CORRECT Gear Engagement
INCORRECT
Figure 22. Jaw selection and workpiece holding.
Model G0765 (Mfd. Since 5/15)
-25-
To change jaw set:
1.
DISCONNECT MACHINE FROM POWER!
2.
Use appropriate device to protect ways (refer
to Installation & Removal Device subsection).
3.
Insert chuck key and turn it counterclockwise
to back jaws out and remove them individually in descending order (i.e., 3, 2, 1).
4.
Use mineral spirits to clean debris and grime
from jaws and chuck jaw guides.
5.
Apply thin coat of NLGI #2 grease to surfaces
of removed jaw set. Store in safe place free
from moisture and abrasives.
6.
Rotate chuck key clockwise until you see tip
of outer scroll-gear lead thread about to enter
a jaw guide (see below).
7.
Insert jaw #1 into jaw guide and hold jaw
against scroll-gear.
8.
Rotate chuck key clockwise one turn to
engage tip of scroll-gear lead thread into jaw.
Pull jaw; it should be locked into jaw guide.
9.
Install remaining jaws in numerical order, in
same manner. The jaws should converge
evenly at center of chuck.
—If jaws do not converge evenly, remove
them. Re-install jaws sequentially 1–3, and
make sure each one engages with scrollgear lead thread during its first rotation.
1
Lead Thread
Figure 25. Lead thread on scroll gear.
-26-
Model G0765 (Mfd. Since 5/15)
Faceplate
Refer to the prior Chuck Installation subsection
for instructions on installing the faceplate.
The faceplate included with your lathe can be
used for a wide range of operations, including
machining non-concentric workpieces, straight
turning between centers, off-center turning, and
boring.
The tools needed for mounting a workpiece will
vary depending on the type of setup you have.
Machining non-concentric workpieces at
high speeds could cause workpiece to be
thrown from lathe with deadly force. To
reduce this risk, use a low RPM, and use
counter-weights to balance faceplate or
workpiece.
To mount a non-concentric workpiece to a
faceplate:
1.
DISCONNECT MACHINE FROM POWER!
2.
Position appropriate device across bed ways
to protect them from any potential damage
from workpiece contact during installation.
3.
With help from another person or holding
device to support workpiece, position it onto
faceplate and clamp it in place with a minimum of three independent clamping devices
(see below for an example).
Be sure to take into account rotational and
cutting forces that will be applied to workpiece when clamping it to faceplate. If necessary, use counter-weights to balance assembly and use a dial indicator to make sure
workpiece is properly positioned for your
operation.
Non-Cylindrical
Workpiece
Failure to properly secure workpiece to
faceplate could cause workpiece to be
thrown from lathe with deadly force. To
reduce this risk, use a minimum of THREE
independent clamping devices to hold
workpiece onto faceplate.
Clamp
Faceplate
Figure 26. Example of a workpiece clamped in a
faceplate.
Model G0765 (Mfd. Since 5/15)
-27-
Tailstock
The tailstock is typically used to support long
workpieces at the side opposite the spindle, using
a live or dead center. It can also hold a tapered
drill bit (or a drill chuck with a regular drill bit) for
boring holes. Unlike boring done with a drill press
where the workpiece is fixed and the drill bit
rotates, the drill bit in a tailstock remains stationary while the workpiece is rotated by the spindle.
The entire tailstock can be repositioned and
locked in place along the length of the bed. An
independently controlled offset adjustment allows
the upper part of the tailstock to move perpendicular to the bedways so it can be aligned with
the spindle center (for concentric turning) or offset
from the spindle center (for tapered turning).
The tailstock quill also features independent
adjustment controls that allow it to be advanced
toward the spindle or locked firmly in position.
Quill Lock
Lever
Tailstock Lock
Lever
Tailstock Quill Specs
Graduated Dial on Handwheel
Increments.................................................. 0.001"
One Full Revolution....................................0.200"
Increments on Quill Scale
Inch ................................ 0"–2" in 1⁄ 8" Increments
Metric .................... 0–50mm in 1mm Increments
Positioning Tailstock
1.
Rotate tailstock lock lever clockwise (facing
machine) to unlock tailstock from bedways.
2.
Slide tailstock to desired position by pushing
it along the bedways.
3.
Rotate tailstock lock lever counterclockwise
to lock tailstock against bedways.
Using Quill
1. Loosen quill lock lever.
2. Turn quill handwheel clockwise to move quill
toward spindle or counterclockwise to move it
away from it.
3. Tighten quill lock lever.
Quill
Offset Adjustment
Screw (1 of 2)
Quill
Handwheel
Figure 27. Tailstock controls and features.
-28-
Model G0765 (Mfd. Since 5/15)
Installing Tooling
The tailstock quill accepts MT#2 tapered arbors
(see the Figures below for examples).
Solid
End
Open
End
Solid
End
Screw
End
Tang
Tang
Note: If the tooling has an open hole in the end,
then a screw can be threaded into the end of the
tool to provide a solid surface for the quill pin to
push against when the quill is retracted for tool
removal. Otherwise, removal of such tooling may
be difficult.
To install tooling in tailstock:
1.
With tailstock locked in place, unlock quill,
then use handwheel to extend it approximately 1".
2.
Thoroughly clean and dry tapered mating
surfaces of quill and center, making sure no
lint or oil remains on tapers.
3.
With a firm and quick motion, insert tool into
quill. Check to see if it is firmly seated by
attempting to twist it—a firmly seated tool will
not twist.
4.
Unlock tailstock and move it until tip of tool
is close to, but not touching, workpiece, then
lock tailstock.
5.
Start spindle rotation, unlock quill lock lever,
then turn quill handwheel clockwise to feed
tool into workpiece.
Figure 28. Types of tapered arbors and tooling.
Removing Tooling
Figure 29. Example photos of inserting tools into
the tailstock.
Model G0765 (Mfd. Since 5/15)
1.
Use shop rag to hold tool.
2.
Rotate quill handwheel counterclockwise to
fully retract quill into tailstock until tool is
forced out of quill.
Offsetting Tailstock
The tailstock quill can be offset from the spindle
centerline for turning tapers. Offsetting the quill
toward the front of the lathe results in a taper at
the tailstock end. Conversely, offsetting the quill
toward the back of the lathe results in a taper at
the spindle end.
-29-
Note: The marks on the offset indicator are arbitrary. For a precise offset, use a dial indicator to
check quill movement while adjusting the screws.
Adjustment
Set Screw (1 of 2)
Aligning Tailstock to Spindle
Centerline
This is an essential adjustment that should be verified or performed each time the tailstock is used
to turn concentric workpieces between centers
or immediately after offsetting the tailstock when
turning a taper. If the tailstock is not aligned with
the spindle centerline when it is supposed to be,
turning results will be inaccurate along the length
of the workpiece.
Items Needed
Qty
Hex Wrench 4mm............................................... 1
Round Stock 2" x 6"........................................... 2
Offset
Indicator
To align the tailstock to the spindle centerline:
1. Center drill both ends of one piece of round
stock, then set it aside for use in Step 5.
Figure 30. Left offset adjustment.
Tools Needed
Qty
Hex Wrench 4mm............................................... 1
To offset the tailstock:
2. Use the other piece of round stock to make
a dead center, and turn it to a 60° point, as
illustrated in the Figure below.
1. Loosen tailstock lock to release clamping
pressure on top and bottom castings.
2. Rotate adjustment set screws in opposite
directions for desired offset (see Figure
below).
Figure 32. Turning a dead center.
Turn
CCW
Turn
CW
Turn
CW
Turn
CCW
Figure 31. Example of set screw adjustment in
relation to tailstock movement.
3. Tighten tailstock lock to secure the offset.
-30-
Model G0765 (Mfd. Since 5/15)
Note: As long as this dead center remains in
the chuck, the point of the center will remain
true to the spindle centerline. The point will
have to be refinished whenever the center is
removed and then returned to the chuck.
3. Install center in tailstock.
4. Attach lathe dog to test stock from Step 1,
then mount it between centers, as shown in
Figure below.
7. Use calipers to measure both ends of
workpiece.
—If test stock is thicker at tailstock end,
move tailstock toward front of lathe 1⁄2 the
distance of the amount of taper, as shown
in the Figure below.
Move tailstock toward
front of lathe 1/2 the
amount of taper.
Looking down from above.
Figure 34. Adjust tailstock toward the operator.
Figure 33. Example of stock mounted between
the centers.
5. Turn 0.010" off stock diameter.
—If test stock is thinner at tailstock end,
move tailstock toward back of lathe 1⁄2 the
distance of taper amount, as shown below.
Looking down from above.
6. Mount test or dial indicator so plunger is on
tailstock quill.
Move tailstock toward
back of lathe 1/2 the
amount of taper.
Figure 35. Adjust tailstock away from the
operator.
8. Repeat Steps 5–7 until desired accuracy is
achieved.
Model G0765 (Mfd. Since 5/15)
-31-
Centers
Mounting Dead Center in Spindle
1. DISCONNECT LATHE FROM POWER!
Figure 36 shows the MT#2 and MT#3 dead centers included with the lathe.
2. Thoroughly clean and dry all mating surfaces
of spindle bore and center, making sure that
no lint or oil remains on these surfaces.
3. Mount chuck or faceplate onto spindle, whichever is correct for your operation.
MT#3 Dead
Center
4. Insert MT#3 center into spindle bore through
chuck or faceplate.
MT#2 Dead
Center
Figure 36. Dead centers.
Below is an example photo of a dead center
installed in spindle, using a lathe dog and
faceplate for turning between centers.
Dead Center
Dead Centers
Dead centers are one-piece high-speed steel
centers that require low spindle speeds and a
small amount of oil to reduce friction heat that may
damage the workpiece.
Mount the MT#2 dead center (see Figure 36)
in the tailstock. Since the workpiece will rotate
against the center and generate friction, the tip of
the center must be lubricated to avoid premature
wear and maximize smooth operation.
Mount the MT#3 dead center (see Figure 36) in
the spindle for operations where the workpiece
rotates with the center and does not generate
friction.
Lathe
Dog
Figure 37. Example of using dead center with a
faceplate and lathe dog.
Removing Center from Spindle
To remove center from the spindle, insert a piece
of round bar stock (or similar tool) through outside
end of spindle. Hold onto center with gloved hand
or shop rag, then tap bar stock to knock center
loose.
-32-
Model G0765 (Mfd. Since 5/15)
Mounting Center in Tailstock
Removing Center from Tailstock
The included MT#2 dead center or a live center
(not included) can be used in tailstock. Mounting
instructions are the same for both. Figure below
shows an example photo of a dead center mounted in a tailstock.
To remove the center from the quill, hold onto it
with a gloved hand or shop rag, then rotate the
quill handwheel counterclockwise to draw the quill
back into the casting until the center releases.
Dead Center
If
the center does
not come loose
by retracting the
Mounting
Workpiece
Between
quill, extend the quill to expose the slot shown in
Centers
the Figure below, then use a drift key to remove
1. center.
DISCONNECT LATHE FROM POWER!
the
2. Drill center holes in both ends of the workpiece.
3. Install MT#3 dead center in spindle with lathe
dog and chuck or faceplate, then install live
center or MT#2 dead center in tailstock.
1. DISCONNECT MACHINE FROM POWER!
Figure 38. Example of using dead center
installed in the tailstock.
To mount a center in tailstock:
1.
DISCONNECT MACHINE FROM POWER!
2.
Thoroughly clean and dry tapered mating
surfaces of tailstock quill bore and center,
making sure no lint or oil remains on tapers.
3.
Use quill handwheel to feed quill out from
casting approximately 1".
Note: The maximum quill travel is 2", but we
do not recommend extending quill more than
1" or stability and accuracy will be reduced.
4.
Insert center into tailstock quill.
5.
Seat center firmly into quill during workpiece
installation by rotating quill handwheel clockwise to apply pressure with center engaged
in center hole of workpiece.
Note: Only apply enough pressure with
tailstock quill to securely mount workpiece
between centers. Avoid overtightening center against workpiece, or it may become
difficult to remove later, and it will result in
excessive friction and heat, which may damage workpiece and center.
Model G0765 (Mfd. Since 5/15)
4. Lubricate MT#2 dead center point and
2. Drill
centercenter
holes holes,
in boththen
ends
of workpiece.
workpiece
mount
workpiece
between centers and hold it in place with light
3. Install
dead
center
in spindle
pressure
from
tailstock
center.with lathe dog
and chuck, faceplate or drive plate, then
install live center or carbide-tipped dead center in tailstock.
To avoid premature wear of dead center
4. Lubricate dead center point and workpiece
or damage to workpiece, use low spindle
center holes, then mount workpiece between
speeds and keep tip of dead center mounted
centers and hold it in place with light pressure
in tailstock well lubricated.
from tailstock center.
5.
Seat center firmly into quill by rotating quill
handwheel clockwise to apply pressure
against workpiece (see example below).
Figure 39. Example photo of a workpiece
mounted between two centers.
Note: Only apply enough pressure to securely
mount the workpiece between centers. Avoid
over-tightening the center against the workpiece,
or it may become difficult to remove later. Also,
over-tightening will result in excessive friction and
heat, which may damage the workpiece or center.
-33-
Steady Rest
The steady rest supports long shafts and can
be mounted anywhere along the length of the
bedway. Familiarize yourself with the steady rest
components shown below to better understand
the controls before using it.
Tools Needed for Installation/Removal Qty
Open-End Wrench 14mm................................... 1
Open-End Wrench 16mm................................... 1
Finger
Adjustment
Knob
Finger
Finger
Lock Nut
To install and use the steady rest:
1. DISCONNECT LATHE FROM POWER!
2. Thoroughly clean all mating surfaces, then
place steady rest base on bedways.
3. Loosen finger lock nuts (see Figure 40), turn
finger adjustment knobs, and adjust fingers
as required for workpiece.
4. Loosen steady rest lock nut, position steady
rest where required to properly support
workpiece, then secure lock nut.
5. Turn finger adjustment knobs so fingers
barely touch workpiece, then tighten finger
lock nuts.
6. Lubricate finger tips with an anti-seize lubricant during operation.
Note: Mill or file tips if they show wear.
Lock
Nut
Figure 40. Steady rest components.
-34-
Model G0765 (Mfd. Since 5/15)
Compound Rest
Four-Way Tool Post
The compound rest handwheel has an indirectread graduated scale. This means that the distance shown on the scale represents the actual
distance the cutting tool moves. The base of the
compound rest has another graduated scale used
for setting the cutting tool to a specific angle.
The four-way tool post is mounted on top of the
compound rest and allows a maximum of four
tools to be loaded simultaneously.
Graduated Dial
Increments................................ 0.001" (0.025mm)
One Full Revolution...................... 0.04" (1.02mm)
Tool Needed
Qty
Hex Wrench 5mm............................................... 1
Each tool can be quickly indexed to the workpiece
by loosening the top handle, rotating the tool
post to the desired position, then retightening the
handle to lock the tool into position.
Installing Tool
Tool Needed
Qty
Hex Wrench 5mm............................................... 1
To install a tool in the tool post:
To set compound rest angle:
1. Loosen cap screws shown in Figure 41.
1.
Adjust tool post screws so cutting tool can fit
underneath them (see Figure below).
Cap Screws
Cutting
Tool
Angle Scale
Tool Post
Screw
Figure 42. Example of tool mounted in tool post.
Figure 41. Compound rest angle adjustments.
2. Rotate rest to desired angle, as indicated by
scale at base, then retighten cap screws.
Tip: The first time you set the compound rest
angle for cutting threads, mark the location
on the cross slide as a quick reference point.
This will allow you to quickly return the compound rest to that exact angle the next time
you need to cut threads.
Model G0765 (Mfd. Since 5/15)
Over-extending a cutting tool from the post
will increase risk of tool chatter, breakage,
or tool loosening during operation, which
could cause metal pieces to be thrown at
the operator or bystanders with great force.
DO NOT extend a cutting tool more than 2.5
times the width of its cross-section (e.g.,
2.5 x 0.5" = 1.25").
2.
Firmly secure cutting tool with at least two
tool post screws.
3.
Check and adjust cutting tool to spindle centerline, as instructed in next subsection.
-35-
Aligning Cutting Tool with Spindle
Centerline
For most operations, the cutting tool tip should be
aligned with the spindle centerline, as illustrated
below.
Qty
Tools Needed
Hex Wrench 6mm............................................... 1
Steel Shims........................................ As Needed
Cutting Tool........................................................ 1
Tailstock Center.................................................. 1
To align cutting tool with tailstock center:
Cutting
Tool
Spindle
Center
Line
1.
Mount cutting tool in tool post, then secure
post so tool faces tailstock.
2.
Install center in tailstock, and position center
tip near cutting tool tip.
3.
Lock tailstock and quill in place.
4.
Adjust height of cutting tool so tool tip is
aligned vertically with center tip, as illustrated
below.
Figure 43. Cutting tool aligned with spindle
centerline (viewed from tailstock).
There are a number of ways to check and align
the cutting tool to the spindle centerline. If necessary, you can raise the cutting tool by placing
steel shims underneath it. The shims should be
as long and as wide as the cutting tool to properly
support it.
Below are two common methods:
•
•
-36-
Move the tailstock center over the cross slide
and use a fine ruler to measure the distance
from the surface of the cross slide to the tip
of the center. Adjust the cutting tool height so
it is the same distance above the cross slide
as the tailstock center.
Align the tip of the cutting tool with a tailstock
center, as instructed in the following procedure. For this to work, the tailstock must
be aligned to the spindle centerline (refer to
Aligning Tailstock To Spindle Centerline
for detailed instructions).
(Top View)
Tailstock
Center
Cutting
Tool
Cutting
Tool
Tailstock
Center
(Side View)
Figure 44. Cutting tool aligned to the tailstock
center.
Model G0765 (Mfd. Since 5/15)
Manual Feed
Spindle Speed
The cutting tool can be manually fed into the
workpiece using the carriage, cross slide, and
compound rest handwheels shown below.
Using the correct spindle speed is important for
getting safe and satisfactory results, as well as
maximizing tool life.
Carriage
Handwheel
Compound
Rest
Handwheel
Cross Slide
Handwheel
Figure 45. Manual feeding controls.
Carriage Handwheel
Graduated Dial
Increments.................................... 0.01" (0.25mm)
One Full Revolution........................ 1.0" (25.4mm)
The carriage handwheel moves the carriage left
or right along the bed. Adjust the position of the
graduated scale by holding the handwheel with
one hand and turning the dial with the other.
Cross Slide Handwheel
Graduated Dial
Increments................................ 0.001" (0.025mm)
One Full Revolution...................... 0.04" (1.02mm)
Use this handwheel to move the tool toward and
away from the work. The cross slide handwheel
has an indirect-read graduated dial. This means
the distance shown on the scale represents the
actual distance the tool moves.
Compound Rest Handwheel
Graduated Dial
Increments . ............................. 0.001" (0.025mm)
One Full Revolution...................... 0.04" (1.02mm)
Use this handwheel to move the cutting tool linearly along the set angle of the compound rest.
Set the compound rest angle by hand-rotating it
and securing in place with two cap screws. The
compound rest has an indirect-read graduated
dial.
Model G0765 (Mfd. Since 5/15)
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 lathe
controls to produce the required 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
workpiece, as noted in the formula shown below.
*Recommended
Cutting Speed (FPM) x 12
Spindle
= Speed
Dia. of Cut (in inches) x 3.14
(RPM)
*Double if using carbide cutting tool
Figure 46. Spindle speed formula for lathes.
Cutting speed, typically defined in feet per minute
(FPM), is the speed at which the edge of a tool
moves across the material surface.
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.
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 they are a good educational resource.
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 the applicable variables in order to determine the best spindle speed for the operation.
-37-
Setting Spindle Speed Range
Configuration Example
The high/low range lever shown in Figure 47,
is used to select one of the two spindle speed
ranges.
Follow this example to gain a better understanding of how to set the spindle speed.
To set spindle speed to 100 RPM:
High/Low
Range Lever
1. Make sure spindle is completely stopped,
and shift high/low range lever to LOW, as
shown in Figure 47.
Figure 47. High/low range lever set to low.
When the lever is moved to the right, as shown in
Figure 47, the low spindle speed range (100–1000
RPM) is selected. When the lever is moved to the
left, the high spindle speed range (100–2000)
RPM is selected.
Note: If high/low range lever does not easily adjust into position, rotate chuck by hand
while you apply pressure to lever. When
gears align, the lever will easily move into
place.
2. Turn variable speed dial to "0".
3. Turn spindle direction switch to "F", and
press ON button.
4. Adjust variable speed dial until spindle speed
display reads 100 RPM.
Setting Spindle Direction & Speed
Set the spindle rotation direction to forward or
reverse with the spindle direction switch, shown
in Figure 48. Reset the Emergency Stop button,
press the ON button, then turn the variable speed
dial clockwise until the desired spindle speed displays on the spindle speed display.
Emergency Stop
Button
Variable
Speed
Dial
Spindle
Speed
Display
Spindle
Direction
Switch
Figure 48. Spindle speed and direction controls.
-38-
Model G0765 (Mfd. Since 5/15)
Power Feed
The carriage has power feed options for either
threading or non-threading operations. However,
this subsection only covers using the power feed
option for non-threading operations. To learn how
to power the carriage for threading operations,
refer to Threading on Page 46.
To avoid damaging lathe, ALWAYS make
sure spindle is completely stopped BEFORE
using headstock controls to make changes.
B. Feed Direction Lever: Selects carriage travel direction. The carriage moves left when
feed direction lever is up, half nut lever is
engaged, and spindle switch is set to "F".
The carriage moves right when the feed
direction lever is all the way down. The carriage will not move when the lever is in the
center position.
Carriage travel direction reverses when the
spindle switch is set to "R".
B
Power Feed Controls
Use the following descriptions and figures to
understand the power feed controls.
Before using power feed, you may have to reconfigure the end gears, depending on how they are
set up. The lathe comes from the factory with the
end gears setup in the standard configuration
(refer to End Gears on Page 43). This end gear
configuration achieves a fixed feed rate of 0.04 in/
rev. Refer to End Gears on Page 43 for detailed
instructions on how to configure the end gears.
Figure 50. Feed direction lever.
C
A. Spindle Switch: Starts, stops, and reverses
carriage travel when feed direction lever and
half nut lever are engaged.
A
Figure 51. Half nut lever.
C. Half Nut Lever: Engages/disengages half
nut for power feed operations.
Figure 49. Spindle switch.
Model G0765 (Mfd. Since 5/15)
To avoid potential carriage/chuck crash,
disengage half-nut lever immediately after
completing power feeding operations.
-39-
Setting Power Feed Rate
Follow the example below to better understand
how to set the lathe power feed.
Tools Needed:
Hex Wrenches 4 & 5mm...............................1 Ea
Open-End Wrenches 13 & 14mm..................1 Ea
8. Reposition adjuster so gears mesh, tighten
adjuster hex nut, then secure gears with cap
screws and flat washers removed earlier.
9. Re-install end cover.
10. Push half nut lever down to engage power
feed (see Figure 53).
To set power feed for 0.04 in./rev.:
1. DISCONNECT LATHE FROM POWER!
2. Gather two 80T and two 20T gears.
Note: All change gears are stamped with the
number of teeth they have except the 20T
gears, which are black.
Disengaged
3. Remove end cover.
4. Remove cap screws and flat washers that
secure existing gears.
5. Loosen hex nut shown in Figure 52, and
pivot adjuster down to disengage gears from
each other.
A
Half Nut
Lever
Halfnut
Lever
Engaged
Figure 53. Half nut lever engaged.
The lathe is now set for a power feed rate of 0.04
in./rev.
B
D
C
Hex
Nut
Adjustor
Figure 52. Adjuster and change gears.
6. Remove existing A, B, C and D change gears
(see Figure 52). Note: Some gears may be
difficult to remove due to excess grease and
debris. Once they are removed, clean gears
with mineral spirits and wipe them down with
a clean rag.
7. Replace A and C gears with 20T gears, and
B and D gears with 80T gears (see Figure 55
on Page 43). The printed gear letters should
face outward.
-40-
Model G0765 (Mfd. Since 5/15)
C (20T)
End Gears
Primary Threading Configuration
The end gears must be correctly setup for power
feed and threading. Use the photo below to
identify the A, B, C, and D change gears, which
are also referenced on the headstock feed rate
gear chart.
A
(20T)
D (80T)
This
threading configuration is used for inch and
metric
threading. Mesh the A, B, and D gears, as
B (80T)
shown in Figure 56. The C gear does not mesh
with any other gears in this configuration, so it is
C not
(20T)
important which gear is installed in the C position. The B and C gears share a keyed bushing.
D (80T)
A
A
B
B
A
Gear
B
Gear
C
C
D
A
The following subsections explain how to configure the end gears, which are accessed by removing the end cover.
Power Feed Configuration
The end gears are preset by the factory in this
configuration, which is only used for power feeding. Mesh the top 20T A gear with the 80T B gear,
and mesh the 20T C gear with the 80T D gear
(see Figure 55).
A (20T)
A Gear
(20T)
C
Secondary
Threading Configuration
A
This threading configuration is used for a different
range of threads and feed rates than the primary
threading configuration.
Mesh the A and B gears,
B
D
and mesh
the C and D gears, as shown in Figure
57. The B and C gears share a keyed bushing.
C
D
A
Gear
A
B
Gear
B
C
C (20T)
D (80T)
Figure 56. Primary threading configuration.
B Gear
(80T)
B (80T)
D
Gear
B
D
Figure 54. Change gear identification.
C
Gear
D
C Gear
(20T)
D Gear
(80T)
C
Gear
D
Gear
Figure 57. Secondary threading configuration.
Figure 55. Power feed end gear configuration.
Model G0765 (Mfd. Since 5/15)
A
-41-
End Gear Configuration Example
Follow the example below to better understand
how to configure the end gears for inch threading.
4. Remove end cover.
5. Loosen adjuster hex nut shown in Figure 60,
pivot adjuster down, and disengage gears.
Tools Needed
Qty
Hex Wrench 4 & 5mm...................................1 Ea
Open-End Wrenches 13 & 14mm..................1 Ea
A Gear
To configure end gears for threading 20 TPI:
B Gear
1. DISCONNECT LATHE FROM POWER!
2. Locate 20 TPI on gear chart shown in Figure
58.
TPI
40T
Gear
20 TPI
Gear Setup
C
TPI
D
Adjuster
Hex Nut
Gear Setup
A
B
12
40
65
13
40
65
14
40
65
16
40
65
40
36
20
18
40
65
45
38
20
50
60 57
19
40
50
57
40
20
65
50
20
40
65
50
44
20
65
55
22
40
65
55
48
20
65
60
24
40
65
60
52
20
60
65
30
26
65T
30 28
Gear
35 32
60
60
A
B
40
60
65
20
65
35
20
C
50T
65
Gear
65
D Gear
C Gear
D
Figure 60. Adjuster hex nut location.
6. Loosen hex nut behind B/C change gear
shaft shown in Figure 61, then slide B/C gear
away from D gear.
40
45
B/C Gear
C
Gear
Hex Nut
Figure 58. Locating change gears for 20 TPI.
3. Gather 40T, 65T, and 50T gears per change
Thread Dial Chart
gear chart. The C gear, which is indicated by
TPI Scale TPI Scale
a "/", is installed on existing B/C change gear
12 1,3,5,7 26
1,5
keyed bushing (see Figure 59).
C Gear
13
1
14
1,5
16
1–8
18
19
Cap Screws
& Washers
28 1,3,5,7
32
1–8
D Gear
36 1,3,5,7
Keyed Bushing
1,5
38
1,5
1
40
1–8
Figure 61. B/C change gear hex nut.
20 1,3,5,7 44 1,3,5,7
22
1,5
24
1–8
48
1–8
7. Remove cap screws and washers that secure
gears, then remove gears.
52 1,3,5,7
Front
Back
Note: If any gears are difficult to remove, use
a large flat head screwdriver to gently wiggle
them off.
Leave existing C gear on keyed bushing. The
C gear will not mesh with any of the other
gears in this 20 TPI threading setup.
B Gear
Figure 59. B/C change gear and keyed bushing
(gears removed for clarity).
Note: Depending upon configuration, C gear
may not be 20T, as shown in Figure 59.
-42-
Model G0765 (Mfd. Since 5/15)
8. Remove key and bushing from D gear shaft
(see Figure 62).
11. Slide 40T, 65T, and 50T gears onto gear
shafts (see Figure 63), making sure to reinstall key with 50T gear.
Key
A (40T)
D (50T)
B (65T)
C (20 or 60T)
Bushing
Adjuster
Hex Nut
Figure 62. D gear shaft key and bushing.
Figure 63. End gear placement.
9. Remove existing B gear from keyed bushing
shared with C gear.
12. Slide bushing removed in Step 8 onto 50T
gear.
10. Slide 65T B gear onto keyed bushing and
firmly against C gear.
13. Position adjuster so gears mesh. Then tighten adjuster hex nut and B/C gear shaft hex
nut.
14. Secure gears with cap screws and washers
removed earlier.
15. Re-install end cover.
Model G0765 (Mfd. Since 5/15)
-43-
Threading
High/Low
Range Lever
The following subsections describe how to use
the threading controls and charts to set up the
lathe for a threading operation. If you are unfamiliar with how to cut threads on a lathe, we strongly
recommend that you read books, review industry
trade magazines, or get formal training before
attempting any threading projects.
Headstock Threading Controls
The threading chart on the headstock face displays the settings for inch threading; a metric
thread chart is provided on Page 70.
Using the controls on the lathe, follow the example below to understand how to set up the lathe
for a threading operation.
To set the lathe to thread 20 TPI:
1. Configure gears as instructed in End Gear
Configuration Example on Page 44.
2. Move high/low range lever to low, and move
feed direction lever all the way up, as shown
in Figure 64.
Feed
Direction
Lever
Feed Direction Lever
UP (Clockwise Rotation)
CENTER (Neutral)
DOWN (CCW Rotation)
High/Low
Range Lever
HIGH
LOW
Figure 64. Lever and dial settings for 20TPI.
The lathe is now set up to cut 20 TPI threads.
-44-
Model G0765 (Mfd. Since 5/15)
TPI
Apron Threading Controls
The half nut lever engages the carriage with the
leadscrew, which moves the carriage and cutting
tool along the length of the workpiece for threading operations (see Figure 65).
Gear Setup
Thread Dial Chart
A B
C
D
65
60
30
65
Thread Dial
Disengaged
Halfnut
Lever
Engaged
Figure 65. Apron threading controls.
Thread Dial
The numbers on the thread dial (Figure 65) are
used with the thread dial chart to show when to
engage the half nut during inch threading.
Note: The thread dial is not used for metric
threading. You must leave the half nut engaged
from the beginning until the turning is complete for
this type of operation.
When threading, we recommend using the
slowest speed possible and avoiding deep
cuts, so you are able to disengage the half
nut when required to prevent a carriage
crash!
When the first cutting pass is complete, the operator disengages the carriage from the leadscrew
using the half nut lever. The operator returns the
carriage for the next pass and re-engages the half
nut using the same thread dial setting to resume
the cut in the previous pass.
Model G0765 (Mfd. Since 5/15)
Gear Setu
A
B
28
20
65
35
32
20
65
The thread dial chart is located on the headstock,
as shown in Figure
30 26 40 60
12 4066. 65
13
40
Thread Dial
Chart
14 40
Half Nut
Lever
TPI
16
40
65
40
36
20 65
18
40
65
45
38
20
50
19
40
50
57
40
20
65
20
40
65
50
44
20
65
65 chart location.
40 dial
22Thread
55 48
Figure 66.
20
65
60
65 inch) that
40 per
60you52want20to 60
Find the TPI 24
(threads
cut on the thread dial chart (see Figure 67), then
reference the scale number to the right. The scale
numbers indicate when to engage the half nut for
a specific thread pitch as indicated by the thread
dial.
Thread Dial Chart
TPI Scale TPI Scale
12 1,3,5,7 26
1,5
13
1
14
1,5
16
1–8
18
1,5
38
1,5
19
1
40
1–8
28 1,3,5,7
32
1–8
36 1,3,5,7
20 1,3,5,7 44 1,3,5,7
22
1,5
24
1–8
48
1–8
52 1,3,5,7
Figure 67. Thread dial chart.
-45-
C
60
TPI Divisible by 8: Use any line on the thread dial
(see example in Figure 68).
Dial Number
TPI
Dial Number
Thread Dial
1, 5
1
14, 18, 22, 26, 38
7
5
3
1–8
1
16, 24, 32, 40, 48
Thread Dial
3
TPI
Even TPI Not Divisible by 4 or 8: Use opposing
number pairs 1 and 5 on thread dial (see example
in Figure 70).
5
The following examples explain how to use
the thread dial and the thread dial chart.
7
Figure 68. Any position on dial for threading TPI
divisible by 8.
Figure 70. Example of even numbered inch
thread pitch.
Odd TPI: Use line 1 on thread dial (Figure 71).
Even TPI Divisible by 4: Use any numbered line
on thread dial (see example in Figure 69).
TPI
Dial Number
Thread Dial
5
3
1, 3,5, 7
7
13, 19
1
5
3
Thread Dial
1
12, 20, 28, 36, 44,
52
Dial Number
1
TPI
7
Figure 71. Example of odd numbered inch
thread pitch.
Figure 69. Example of inch thread pitch divisible
by 4.
-46-
Model G0765 (Mfd. Since 5/15)
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.
D3640—Shop Fox Tool Table Plus
This new, tool table plus was designed to answer
customer requests for a slightly wider and taller
table than our D2056 to accommodate a variety
of bench-top machines.
NOTICE
Refer to our website or latest catalog for
additional recommended accessories.
H2987—½" Bent Lathe Dog
H2988—1" Bent Lathe Dog
H2989—1½" Bent Lathe Dog
H2990—2" Bent Lathe Dog
H2991—3" Bent Lathe Dog
Figure 73. D3640 Shop Fox Tool Table Plus.
T25206—11 Pc. Carbide Bit Set 5⁄16"
This 11-Pc. Carbide-Tipped Tool Bit Set includes
a wide variety of tool types for just about any
machining operation. This set also includes two
boring bars. Boring bars measure 47⁄8" long.
Shank size for all is 5⁄16".
SB1365—South Bend Way Oil for Lathes
Engineered for the high pressure exerted on
horizontal or vertical ways and slides. Protects
against rust and corrosion. Ensures stick-free,
smooth motion which maximizes finishes and
extends the life of your machine. Won’t gum up!
12 oz. AMGA#2 (ISO 68 Equivalent).
Figure 72. 11-Pc. Carbide-Tipped Tool Set.
Figure 74. Way Oil.
order online at www.grizzly.com or call 1-800-523-4777
Model G0765 (Mfd. Since 5/15)
-47-
SECTION 6: MAINTENANCE
Daily, After Operations
Always disconnect power
to the machine before
performing maintenance.
Failure to do this may
result in serious personal injury.
Schedule
Ongoing
To maintain a low risk of injury and proper
machine operation, if you ever observe any of the
items below, shut down the machine immediately
and fix the problem before continuing operations:
•
•
•
•
•
Loose mounting bolts or fasteners.
Worn, frayed, cracked, or damaged wires.
Guards or covers removed.
Emergency Stop button not working correctly.
Damaged or malfunctioning components.
Daily, Before Operations
•
•
•
•
•
-48-
Add oil to the ball oilers (Page 51).
Lubricate the leadscrew and carriage rack
(Page 52).
Lubricate the bedways (Page 52).
Clean/lubricate the cross slide and compound slide (Page 52).
Disengage the half nut on the carriage (to
prevent crashes upon startup).
•
•
•
Press the Emergency Stop button (to prevent
accidental startup).
Vacuum/clean all chips and swarf from bed,
slides.
Wipe down all unpainted or machined surfaces with an oiled rag.
Annually
•
Lubricate change gear bushing and tumbler
gears (Page 53).
Cleaning/Protecting
Because of its importance, we recommend that
the cleaning routine be planned into the workflow
schedule.
Typically, the easiest way to clean swarf from the
machine is to use a wet/dry shop vacuum that is
dedicated for this purpose. The small chips left
over after vacuuming can be wiped up with a
slightly oiled rag. Avoid using compressed air to
blow off chips, as this may drive them deeper into
the moving surfaces or cause sharp chips to fly
into your face or hands.
All unpainted and machined surfaces should be
wiped down daily to keep them rust free and in top
condition. This includes any surface that is vulnerable to rust if left unprotected. Use a quality ISO
68 way oil (see Page 49 for offerings from Grizzly)
to prevent corrosion.
Model G0765 (Mfd. Since 5/15)
Lubrication
The lathe has metal-to-metal sliding surfaces that
require regular lubrication to maintain smooth
movement and ensure 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.
Items Needed
Qty
Clean Rag ......................................... As Needed
Mineral Spirits..................................... As Needed
Stiff Brush........................................................... 1
Wrench 4mm...................................................... 1
Pump-Type Oil Can w/Plastic Cone Tip............. 1
Ball Oilers
Oil Type...............................ISO 32 or Equivalent
Amount...................................... 1 or 2 Squirts/Fill
Lubrication Frequency.................................. Daily
task,
This lathe has four ball oilers that should be oiled
on a daily basis before beginning operation.
We recommend using Model SB1365 Way Oil or
equivalent (see Page 49) for most of the lubrication tasks.
Proper lubrication of ball oilers is done with a
pump-type oil can that has a plastic or rubberized cone tip. 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.
Before performing any lubrication
DISCONNECT LATHE FROM POWER!
Lubrication Frequency
Lubrication Task
Frequency
Page
Ref.
This
Page
Ball Oilers
Daily
Leadscrew, End Brackets,
and Carriage Rack
Daily
52
Bedways
Daily
52
Cross Slide & Compound
Slide
Daily
52
Change Gear Bushing
Annually
53
Tumbler Gears
Annually
53
Lubricate the ball oilers before and after machine
use, and more frequently under heavy use. When
lubricating ball oilers, first clean the outside surface to remove any dust or grime. 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, keep pumping the oil
can until the oil runs clear. When finished, wipe
away any excess oil.
Refer to Figure 75 to identify the location of each
ball oiler.
NOTICE
The recommended lubrication is based on
light-to-medium usage. Keeping in mind
that lubrication helps to protect the value
and operation of the lathe, these lubrication
tasks may need to be performed more frequently than recommended here, depending on usage.
Failure to follow reasonable lubrication
practices as instructed in this manual could
lead to premature failure of lathe components and will void the warranty.
Model G0765 (Mfd. Since 5/15)
Ball Oilers
Figure 75. Ball oilers.
-49-
Leadscrew & Carriage Rack
Bedways
Oil Type.....Grizzly SB1365 or ISO 68 Equivalent
Amount............................................... As Needed
Lubrication Frequency.................................. Daily
Oil Type.....Grizzly SB1365 or ISO 68 Equivalent
Amount............................................... As Needed
Lubrication Frequency.................................. Daily
Before lubricating the leadscrew and carriage
rack (see Figure 76), clean them first with mineral spirits. Use a stiff brush to help remove any
debris or grime. Apply a thin coat of oil along the
entire length of the carriage rack. Use a stiff brush
to make sure oil is applied into the leadscrew
threads and both end brackets.
Before lubricating the bedways (see Figure 76),
clean them with mineral spirits. Apply a thin coat
of oil along the length of the bedways. Move the
steady rest, carriage, and tailstock to access the
entire length of the bedways.
Note: In some environments, abrasive material
can become caught in the leadscrew lubricant and
drawn into the half nut. In this case, lubricate the
leadscrew with a quality dry lubricant.
Carriage Rack
Bedways
Cross Slide & Compound Slide
Oil Type.....Grizzly SB1365 or ISO 68 Equivalent
Amount..................................................Thin Coat
Lubrication Frequency.................................. Daily
Use the handwheels to separately move the
cross slide and compound slide as far forward as
possible (see Figure 77). Clean the slides with
mineral spirits and wipe down with a rag. Apply
lubricant and move the slides back and forth to
distribute the oil.
Compound
Bottom
Slide
Leadscrew
Leadscrew End Bracket
Cross Slide
Bottom Slide
Leadscrew End Bracket on
Headstock Side (Headstock
Cover Removed for Clarity)
Figure 77. Location of bottom slides.
Figure 76. Leadscrew, leadscrew brackets,
carriage rack, and bedways.
-50-
Model G0765 (Mfd. Since 5/15)
Machine Storage
Change Gear Bushing
Grease Type......................White Lithium NLGI#2
Frequency............................................... Annually
Amount..................................................Thin Coat
The plastic end gears do not need to be lubricated. However, we recommend lightly lubricating
the B/C change gear keyed bushing with white
lithium grease.
Keyed Bushing
Preparing Lathe for Storage
1. DISCONNECT LATHE FROM POWER!
2. Thoroughly clean all unpainted, bare metal
surfaces, then apply a liberal coat of way oil,
heavy grease, or rust preventative. Take care
to ensure these surfaces are completely covered but that the rust preventative or grease
is kept off of painted surfaces.
3. Lubricate machine as outlined in lubrication
section. Be sure to use an oil can to purge all
ball oilers and oil passages with fresh oil.
4. Place a few moisture absorbing desiccant
packs inside of the electrical box.
Gear
Shaft
Figure 78. B/C change gear removed to access
keyed bushing.
Remove the end cover and B/C change gear,
clean the shaft and keyed bushing with mineral
spirits and dry. Apply a thin coat of white lithium
grease to the inside of the bushing shaft, then reinstall it.
Tumbler Gears
5. Cover lathe and place it 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.
6. Every few months, rotate by hand all geardriven components a few times in several
gear selections. This will keep bearings,
bushings, gears, and shafts well lubricated
and protected from corrosion—especially
during winter months.
Oil Type.....Grizzly SB1365 or ISO 68 Equivalent
Amount................................................. 2-3 Drops
Lubrication Frequency............................ Annually
Add lubricant between the bolt heads and tumbler
gears shown in Figure 79.
Bringing Lathe Out of Storage
Slide carriage, tailstock, and steady rest
down lathe bed to make sure that way spotting is not beginning to occur.
1. Remove moisture-absorbing desiccant packs
from electrical box.
2. Repeat Test Run and Spindle Break-In procedures, beginning on Page 21.
Bolts
Figure 79. Tumbler gear lubrication points.
Model G0765 (Mfd. Since 5/15)
-51-
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
Symptom
Possible Cause
Possible Solution
Machine does not
start or a circuit
breaker trips.
1. Emergency stop button engaged or at fault.
2. Variable speed dial in OFF position or at
fault.
3. Spindle direction switch turned to "0" or at
fault.
4. Blown fuse.
5. Incorrect power supply voltage.
6. Power supply circuit breaker tripped or fuse
blown.
7. Wiring open/has high resistance.
8. Motor brushes at fault.
9. On/Off switch at fault.
10.Motor at fault.
1. Press side tab in and lift switch cover. Press On
button to reset; replace if not working properly.
2. Turn variable speed dial past "0". Ensure dial has
correct voltage. Replace if faulty.
3. Turn spindle direction switch to "F" or "R". Ensure
dial has correct voltage. Replace if faulty.
4. Replace fuse/ensure no shorts (Page 58).
5. Ensure correct power supply voltage.
6. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
7. Check/fix broken, disconnected, or corroded wires.
8. Remove/replace brushes (Page 59).
9. Replace switch.
10.Test/repair/replace.
Machine stalls or is
underpowered.
1. Feed rate/cutting speed too fast.
2. Wrong workpiece material.
3. Machine undersized for task.
4. Motor overheated.
5. Computer board at fault.
6. Motor speed dial at fault.
7. Timing belt slipping.
8. Motor brushes at fault.
9. Pulley/sprocket slipping on shaft.
10.Motor bearings at fault.
11.Motor at fault.
1. Decrease feed rate/cutting speed.
2. Use correct type/size of metal.
3. Inspect and replace if at fault.
4. Use sharp bits; reduce feed rate/depth of cut.
5. Clean motor, let cool, and reduce workload.
6. Test and replace if at fault.
7. Tension/replace belt; ensure pulleys are aligned.
8. Remove/replace brushes (Page 59).
9. Replace loose pulley/shaft.
10.Test/repair/replace.
11.Test/repair/replace.
Machine has
vibration or noisy
operation.
1. Motor or component loose.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
2. Realign/replace shaft, pulley, setscrew, and key.
3. Fix/replace fan cover; replace loose/damaged fan.
4. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
5. Replace/sharpen cutting tool; index tool to spindle
centerline; use correct feed rate and cutting RPM.
6. Properly secure or center workpiece in chuck or
faceplate; replace defective chuck.
2. Pulley loose.
3. Motor fan rubbing on fan cover.
4. Motor bearings at fault.
5. Cutting tool chattering.
6. Workpiece or chuck at fault.
-52-
Model G0765 (Mfd. Since 5/15)
Lathe Operation
Symptom
Possible Cause
Possible Solution
Bad surface finish.
1. Wrong spindle speed or feed rate.
2. Dull tooling or wrong tool selection.
1. Adjust for appropriate spindle speed and feed rate.
2. Sharpen tooling or select a better tool for the
intended operation.
3. Adjust tool height to spindle centerline (see Page
38).
4. Tighten gibs (see Page 57).
3. Tool height not at spindle centerline.
4. Too much play in gibs.
Tapered tool difficult 1. Quill not fully retracted into tailstock.
to remove from
2. Contaminants not removed from taper
tailstock quill.
before inserting into quill.
1. Turn quill handwheel until tapered tool is forced out
of quill.
2. Clean taper and bore, then re-install tool.
4. Leadscrew mechanism worn or out of
adjustment.
1. Clean ways and relubricate.
2. Adjust gibs (see Page 57).
3. Tighten handwheel fasteners, adjust handwheel
backlash to a minimum (see Page 56).
4. Adjust leadscrew to remove end play (see Page
56).
Cross slide,
compound,
or carriage
handwheels hard to
move.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Cutting tool
or machine
components vibrate
excessively during
cutting.
1. Tool holder not tight enough.
2. Cutting tool sticks too far out of tool holder;
lack of support.
3. Gibs are out of adjustment.
4. Dull cutting tool.
5. Incorrect spindle speed or feed rate.
1. Check for debris, clean, and retighten.
2. Re-install cutting tool so no more than 1⁄3 of the total
length is sticking out of tool holder.
3. Adjust gibs at affected component (see Page 57).
4. Replace or resharpen cutting tool.
5. Use the recommended spindle speed and feed rate.
Workpiece is
tapered.
1. Headstock and tailstock not properly
aligned.
1. Re-align tailstock to headstock spindle centerline
(see Page 32).
Chuck jaws will
not move or do not
move easily.
1. Chips lodged in jaws or scroll plate.
1. Remove jaws, clean and lubricate scroll plate, then
replace jaws.
Cross slide,
compound rest, or
carriage feed has
sloppy operation.
1. Ways loaded with shavings, dust, or grime.
2. Gibs are out of adjustment.
3. Handwheel loose or excessive backlash.
Ways loaded with chips, dust, or grime.
Gibs are too tight.
Backlash setting too tight.
Bedways are dry.
Half nut lever engaged.
Model G0765 (Mfd. Since 5/15)
Clean ways and lubricate.
Loosen gibs slightly (see Page 57).
Slightly loosen backlash setting (see Page 56).
Lubricate bedways.
Disengage half nut lever for manual feeding.
-53-
Backlash Adjustment
Backlash is the amount of free play felt while
changing rotation directions with the handwheel.
This can be adjusted on the cross slide leadscrew.
Before beginning any adjustment, make sure all
associated components are cleaned and lubricated and locks are loose.
When adjusting backlash, tighten the components
enough to remove backlash, but not so much that
the components bind the leadscrew, making it
hard to turn. Overtightening will cause excessive
wear to the sliding block and leadscrew.
Reducing backlash to less than 0.002" is
impractical and can lead to accelerated wear
in the leadscrew and other components.
Avoid the temptation to overtighten the
backlash nut or screw while adjusting.
Angle the compound rest so you can access
the cap screws shown in Figure 80. Loosen the
outer cap screws, adjust the inner cap screw,
then tighten the outer cap screws. Move the
cross slide handwheel back and forth and adjust
backlash until it is approximately 0.002"–0.003",
as indicated on the graduated dial. Re-adjust the
compound rest angle when you are finished.
Leadscrew End-Play
Adjustment
After a long period of time, you may find that the
leadscrew develops excessive end-play or lateral
movement. This lathe is designed so that endplay can be removed with a simple adjustment.
Tools Needed
Qty
Hex Wrench.................................................. 4mm
Open-End Wrench 12mm................................... 1
To remove leadscrew end play:
Cross Slide
Tools Needed:
Qty
Hex Wrench 2.5mm............................................ 1
Hex Wrench 3mm ............................................. 1
The cross slide backlash is adjusted by tightening and loosening the inner and outer cap screws
shown in Figure 80. The inner screw adjusts
the height of the leadscrew nut, taking up lash
between the nut and leadscrew.
1. DISCONNECT LATHE FROM POWER.
2. Loosen set screw shown in Figure 81 several turns.
Leadscrew
Retaining Nut
Set Screw
Inner Cap
Screw
End Bracket
Figure 81. Leadscrew end-play adjustments.
Outer Cap
Screws
Figure 80. Cross slide backlash adjustment cap
screw.
-54-
3. Tighten retaining nut with your fingers so it
just contacts end bracket, then back nut off
1
⁄8 turn.
4. Hold nut in position and tighten set screw
against leadscrew until snug.
Model G0765 (Mfd. Since 5/15)
Gib Adjustment
Compound Slide
Adjustment
Fasteners
The goal of adjusting the gib screws is to remove
sloppiness or "play" from the ways without overadjusting them to the point where they become
stiff and difficult to move.
In general, loose gibs cause poor finishes and
tool chatter; however, over-tightened gibs cause
premature wear and make it difficult to turn the
handwheels.
The gib adjustment process usually requires some
trial-and-error. Repeat the process as necessary
until you find the best balance between loose and
stiff movement. Most machinists find that the ideal
gib adjustment is one where a small amount of
drag or resistance is present, yet the handwheels
are still somewhat easy to move.
Clean and lubricate the ways before beginning
any adjustments. Refer to Lubrication on Page
51 for instructions and lubricant specifications.
Tools Needed
Qty
Open-End Wrench 7mm..................................... 1
Hex Wrench 3mm............................................... 1
Figure 83. Compound slide gib adjustment hex
nuts and cap screws.
3. Adjust all three cap screws in small and equal
increments, then test movement of slide by
rotating handwheel.
Note: Turning cap screws clockwise tightens
the gib, and turning them counterclockwise
loosens the gib.
4. When satisfied with gib adjustment, use hex
wrench to prevent cap screws from moving,
then retighten hex nuts to secure the settings.
5. Recheck movement of slide and, if necessary, repeat Steps 2–4.
To adjust cross slide and compound slide
gibs:
1. DISCONNECT LATHE FROM POWER!
2. Loosen three hex nuts on side of cross slide
or compound slide (see Figures 82–83).
Cross Slide
Adjustment
Fasteners
Figure 82. Cross slide gib adjustment hex nuts
and cap screws.
Model G0765 (Mfd. Since 5/15)
-55-
Half Nut Adjustment
Fuse Replacement
The rigidity of the half nut engagement is adjusted
by tightening or loosening the half nut gib screws.
Adjust the half nut if it feels too loose or too tight
when being engaged. Movement that is too stiff
will accelerate wear. Movement that is too sloppy will produce inaccurate turning or threading
results.
This lathe features an on-board fuse designed
to blow to protect sensitive electrical parts from
thermal damage in the event of an overload. If the
spindle does not start, replace the fuse.
Qty
Tool Needed
Hex Wrench 2mm............................................... 1
To adjust half nut:
1. DISCONNECT LATHE FROM POWER!
Replacement fuse part number: P0765166.
To replace fuse:
1. DISCONNECT LATHE FROM POWER!
2. Unthread fuse holder by rotating counterclockwise (see Figure 85) and remove fuse.
Fuse
Holder
2. Disengage half nut.
Fuse
3. Adjust gib set screws (see Figure 84) in
small, even increments so one end of gib
does not become tighter than the other.
Half-Nut
Set
Screws
Fuse
Holder
Hole
Figure 85. Fuse holder and fuse.
3. Insert new fuse into fuse holder.
4. Re-install fuse holder.
Gib
Figure 84. Half nut gib adjustment set screws.
4. Engage/disengage half nut several times and
notice how it feels. The adjustment is correct when half nut firmly and easily engages
leadscrew while opening and closing.
5. Repeat Steps 3–4, if necessary, until satisfied with feel of half nut engagement.
-56-
Model G0765 (Mfd. Since 5/15)
Brush Replacement
3. Unscrew rear brush cap and carefully remove
brush from motor (see Figure 87).
This lathe is equipped with a universal motor
that uses two carbon brushes to transmit electrical current inside the motor. These brushes
are considered to be regular "wear items" or
"consumables" that will need to be replaced during the life of the motor. The frequency of required
replacement is often related to how much the
motor is used and how hard it is pushed.
Replace the carbon brushes when the motor no longer reaches full power, or when the brushes measure less than 1⁄4" long (new brushes are 5 ⁄ 8" long).
Tools Needed
Qty
Flat Head Screwdriver #2................................... 1
Phillips Head Screwdriver #2............................. 1
Brush
Cap
Figure 87. Rear motor brush components
removed.
4. Unscrew front brush cap and remove brush
from motor (see Figure 88).
Replacement brush part number: P0765150-1
To replace motor brushes:
1. DISCONNECT LATHE FROM POWER!
2. Remove the three screws that secure rear
motor cover, then remove cover to gain
access to rear brush (see Figure 86).
Brush Cap
Brush
Screws
Figure 88. Front brush components removed.
5. Install new brushes.
6. Re-install brush caps.
Brush Cap
7. Replace rear motor cover.
Figure 86. Location of rear motor brush cap.
Model G0765 (Mfd. Since 5/15)
-57-
Timing Belt Tension
& Replacement
The timing belt transfers power from the motor to
the drive pulley (see Figure 89).
Because the molded teeth in the belt fit together
with matching teeth in the pulley, the timing belt
will not slip unless the belt teeth become overly
worn or belt tension is overly loose.
An improperly tensioned timing belt will slip, which
quickly causes it to become damaged and unsuitable for further use. Therefore, it is essential to
maintain belt tension properly to prevent slippage.
Once a timing belt begins to slip, it must be
replaced in order to regain proper power transmission.
Drive
Pulley
Motor
Mount
Hex Nuts
Timing
Belt
Motor
Pulley
Figure 89. Timing belt and motor mount hex
nuts (components removed for clarity).
Qty
Tools Needed
Hex Wrench 4mm............................................... 1
Hex Wrench 5mm............................................... 1
Open-End Wrench/Socket 10mm....................... 1
Phillips Head Screwdriver................................... 1
Punch & Hammer or
Adjustable Spanner Wrench............................... 1
Black Fine-Tip Felt Marker................................. 1
Tensioning Timing Belt
1. DISCONNECT LATHE FROM POWER!
2. Perform Steps 2–5 on Page 61 to remove
components to access timing belt.
3. Verify belt is centered on drive pulley (see
Figure 89) by hand-rotating chuck. The belt
should be seated so it does not contact headstock or hang out at end of pulley.
—If belt is not centered, loosen motor mount
hex nuts (see Figure 89), re-adjust motor
position and re-tension belt.
4. Loosen both motor mount hex nuts.
5. Ensure belt teeth are properly engaged in
pulley notches, push down on motor with
light/moderate pressure, and tighten motor
mount hex nuts.
Note: Position motor so you can access
brush cap through hole in bed.
The timing belt is correctly tensioned when
there is approximately 1⁄8" deflection when it
is pushed with moderate pressure, as shown
in Figure 90.
Pulley
Deflection
⁄8"
1
Pulley
Figure 90. Correct timing-belt deflection.
—If there is more than 1⁄8" deflection when
timing belt is pushed with moderate pressure, loosen motor mount hex nuts, and
adjust tension until it is correct.
6. Perform Steps 9–11 on Page 61 to re-install
components you removed earlier.
-58-
Model G0765 (Mfd. Since 5/15)
Replacing Timing Belt
1. DISCONNECT LATHE FROM POWER!
7. Slide off old timing belt and install the new
one, making sure that belt teeth are seated
together with pulley teeth (see Figure 93).
2. Remove end cover, rear motor cover, and
electrical cabinet.
Side
Cover
Gear
Sensor
Wheel
Timing
Belt
Inner
Spanner
Nut
Outer
Spanner
Nut
Speed
Sensor
Figure 93. Timing belt installed.
Figure 91. Components to be removed to
replace timing belt.
8. Tension timing belt. (Refer to Tensioning
Timing Belt on Page 60 for detailed instructions.)
3. Using a fine-tip felt marker, place alignment
marks on inner spanner nut and gear shown
in Figure 91. The purpose or these marks is
to help re-install the outer spanner nut.
9. Check alignment marks you made on inner
spanner nut and gear in Step 3. The marks
should still be aligned.
4. Carefully remove outer spanner nut, speed
sensor, and sensor wheel.
—If marks are not aligned, adjust inner spanner nut as needed to align them.
5. Remove side cover assembly.
6. Loosen motor mount hex nuts shown in
Figure 92.
10. Re-install side cover, sensor wheel, speed
sensor, and outer spanner nut.
11. Re-install electrical cabinet, rear motor cover,
and end cover.
Motor
Mount
Hex Nuts
Figure 92. Location of motor mount hex nuts.
Model G0765 (Mfd. Since 5/15)
-59-
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/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.
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.
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.
CIRCUIT REQUIREMENTS. You MUST follow
the requirements at the beginning of this manual when connecting your machine to a power
source.
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.
-60-
Model G0765 (Mfd. Since 5/15)
Control Panel Wiring
13
23
4WPLJ-2T
DIGITAL READOUT
23
13
24
14
24
To
Plug
Page
65
14
24
J1
CON4
14
A1
KEDU KJD17B
ON/OFF SWITCH
Top of Control Panel
5
9
KEDU
ZHA
DIRECTION SWITCH Left Side
2
6
10
From
Behind
1
5
9
6
2
P2
14
POWER LAMP
P3
P1
12
24
10
10
FUSE
VARIABLE
SPEED
7
11
L2
KEDU
ZHA
DIRECTION SWITCH Right Side
12
8
4
From
Behind
11
3
7
P1
12
12
12
11
P2
A−
GND
P3
P1
P3
P2
A-
L2
L2
Machine
Frame
L2
L1
A+
L1
JD−014
REV A 09111
CIRCUIT BOARD
A+
Front of Control Panel
Bottom of Control Panel
14
5
L2
T
KSP
CIRCUIT BOARD
7
L1
9
41 32 32 41
11
12
11
22
33
10
Model G0765 (Mfd. Since 5/15)
READ ELECTRICAL SAFETY
ON PAGE 62!
To Motor
Page 65
To Speed
Sensor
Page 65
-61-
Control Panel Wiring Photos
Figure 94. G0765 wiring overview.
Figure 96. Control panel wiring (top).
Figure 95. Control panel wiring (bottom).
Figure 97. Control panel wiring (front).
-62-
READ ELECTRICAL SAFETY
ON PAGE 62!
Model G0765 (Mfd. Since 5/15)
Motor/Speed Sensor/ Plug Wiring
MOTOR
83ZYT007
110V
Figure 98. Motor wiring.
Speed Sensor
To Control Panel
Page 63
To Control Panel
Page 63
Figure 99. Speed sensor location.
SPEED SENSOR
To Control Panel
Page 63
Wires connect on back
side of circuit board
Figure 100. Speed sensor
wiring.
Neutral
Hot
110 VAC
Ground
Model G0765 (Mfd. Since 5/15)
5-15 Plug
READ ELECTRICAL SAFETY
ON PAGE 62!
-63-
SECTION 9: PARTS
Main
-64-
Model G0765 (Mfd. Since 5/15)
Main
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
25
26
27
28
29
30
31
32
33
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
BED
3-JAW CHUCK 3" W/INTERNAL JAWS
SPINDLE MT#3
STUD-DE M6-1 X 60, 15
FLAT WASHER 6MM
HEX NUT M6-1
KEY 5 X 5 X 40
KEY 4 X 4 X 8
CAP SCREW M5-.8 X 10
BEARING COVER
BALL BEARING 6206ZZ
SPACER
HEADSTOCK CASTING
COMBO GEAR 21T/29T
SPACER
GEAR 45T
SPANNER NUT
SET SCREW M5-.8 X 8
STEEL BALL 5MM
COMPRESSION SPRING 4 X 9
SET SCREW M6-1 X 6
EXT RETAINING RING 12MM
BALL BEARING 6201ZZ
COMBO GEAR 12T/20T
KEY 4 X 4 X 45
H/L SHAFT
SPINDLE PULLEY
EXT RETAINING RING 10MM
TIMING BELT 1.5M-70-9.5
SHIFTING FORK
SHIFTING ARM
H/L LEVER HUB
H/L LEVER M8-1.25 X 10
HANDLE
HANDLE MOUNT
COMPRESSION SPRING
PINION GEAR 25T
INDICATOR
GEAR SHOULDER BOLT M8-1.25 X 5
PINION GEAR 20T
HEADSTOCK SIDE COVER
CAP SCREW M6-1 X 20
CAP SCREW M5-.8 X 10
GEAR 45T
SHAFT
KEY 4 X 4 X 8
GEAR MOUNT
CAP SCREW M5-.8 X 15
PINION GEAR 20T
FLAT WASHER 5MM
CAP SCREW M5-.8 X 10
END GEAR COVER
CAP SCREW M5-.8 X 40
P0765001
P0765002
P0765003
P0765004
P0765005
P0765006
P0765007
P0765008
P0765009
P0765010
P0765011
P0765012
P0765013
P0765014
P0765015
P0765016
P0765017
P0765018
P0765019
P0765020
P0765021
P0765022
P0765023
P0765024
P0765025
P0765026
P0765027
P0765028
P0765029
P0765030
P0765031
P0765032
P0765033
P0765035
P0765036
P0765037
P0765038
P0765039
P0765040
P0765041
P0765042
P0765043
P0765044
P0765045
P0765046
P0765047
P0765048
P0765049
P0765050
P0765051
P0765052
P0765053
P0765054
Model G0765 (Mfd. Since 5/15)
REF PART #
DESCRIPTION
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
74
75
76
77
78
79
80
81V2
82V2
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
105
106
107
108
109
110
111
112
CAP SCREW M6-1 X 6
FLAT WASHER 6MM
BUSHING W/KEYWAY
GEAR 80T
SHAFT
PIVOT ARM
FLAT WASHER 8MM
HEX NUT M8-1.25
SHAFT
THREAD DIAL
GEAR SHAFT 16T
CAP SCREW M6-1 X 16
THREAD DIAL BODY
SET SCREW M4-.7 X 10
APRON
HALF NUT GIB
HALF NUT SHAFT
HALF NUT 2-PC SET
COMPOUND REST ANGLE SCALE
FLAT HD SCR M4-.7 X 10
CAM
HALF NUT LEVER
SHAFT
COMBO GEAR 11T/49T V2.05.15
GEAR SHAFT 29T V2.05.15
SET SCREW M6-1 X 12
HANDWHEEL
HANDWHEEL HANDLE M5-.8 X 6
CROSS BALL HANDLE
GRADUATED DIAL
CROSS LEADSCREW BRACKET
CROSS LEADSCREW
HEX NUT M5-.8
CAP SCREW M6-1 X 12
SADDLE CLAMP PLATE
SADDLE
CROSS SLIDE GIB
CROSS LEADSCREW NUT
COMPOUND REST SWIVEL BASE
CAP SCREW M8-1.25 X 20
HEX NUT M4-.7
SET SCREW M4-.7 X 16
CROSS SLIDE
SET SCREW M5-.8 X 10
CAP SCREW M4-.7 X 10
COMPOUND REST SLIDE BASE
CAP SCREW M4-.7 X 14
COMPOUND REST GIB
COMPOUND REST
INDENT PIN
TOOL POST CAP SCREW M8-1.25 X 25
TOOL POST LOCK LEVER
TOOL POST BODY
P0765056
P0765057
P0765058
P0765059
P0765060
P0765061
P0765062
P0765063
P0765064
P0765065
P0765066
P0765067
P0765068
P0765069
P0765070
P0765071
P0765074
P0765075
P0765076
P0765077
P0765078
P0765079
P0765080
P0765081V2
P0765082V2
P0765083
P0765084
P0765085
P0765086
P0765087
P0765088
P0765089
P0765090
P0765091
P0765092
P0765093
P0765094
P0765095
P0765096
P0765097
P0765098
P0765099
P0765100
P0765101
P0765102
P0765105
P0765106
P0765107
P0765108
P0765109
P0765110
P0765111
P0765112
-65-
Main
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
113
114
115
116
117
119
123
124
125
126
127
128
129
131
133
134
135
136
137
138
139
140
141
142
143
144
145
146
148
150
150-1
150-2
151
152
153
157
158
STUD-DE M10-1.5 X 50, 15
COMPOUND LEADSCREW
COMPOUND LEADSCREW BRACKET
CAP SCREW M4-.7 X 14
MOTOR COVER (FRONT)
HEX NUT M10-1.5
ELECTRICAL CABINET
POWER CORD 18G 3W 60" 5-15
FOOT (RUBBER)
CHIP TRAY
LEADSCREW OUTBOARD BRACKET
KEY 4 X 4 X 8
LONGITUDINAL LEADSCREW 16TPI
LEADSCREW END BRACKET
CAP SCREW M3-.5 X 10
RACK
TAILSTOCK CLAMP PLATE
FLAT WASHER 10MM
SET SCREW M5-.8 X 16
TAILSTOCK CASTING (UPPER/LOWER)
TAILSTOCK LEADSCREW
TAILSTOCK LEADSCREW BRACKET
CAP SCREW M4-.7 X 10
TAILSTOCK QUILL
DEAD CENTER MT#2
STUD-DE M8-1.25 X 60, 25
CLAMP SLEEVE
QUILL LOCK LEVER
MOTOR PULLEY
MOTOR 110VDC
MOTOR CARBON BRUSH 2-PC SET
CARBON BRUSH CAP
MOTOR COVER (REAR)
STRAIN RELIEF 3/4" NPT LT STRAIGHT
SPLASH GUARD
FLAT WASHER 5MM
POWER LIGHT
159
160
161
162
163
164
165
166
167
168
169
170
171
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
FUSE HOLDER
SPINDLE SPEED DIGITAL READOUT 4WPLJ-2T
POTENTIOMETER B4K7 4.7KOHM
F/O/R ROTARY SWITCH TUV ZH-A
CIRCUIT BOARD KSP W/ TRANSFORMER
CIRCUIT BOARD JD-0410 W/ MOUNTING BRACKET
E-STOP KEDU KJD17B/120V
FUSE 10A 250V FAST-ACTING GLASS
COMPOUND REST BALL HANDLE
SPEED SENSOR WHEEL
SPEED SENSOR H12A5
CAP SCREW M8-1.25 X 25
DEAD CENTER MT#3
FACEPLATE 6-1/4"
LATHE CHUCK KEY 3/8" STD
EXTERNAL JAWS 3-PC SET
HEX WRENCH 2.5MM
HEX WRENCH 3MM
HEX WRENCH 4MM
HEX WRENCH 5MM
HEX WRENCH 6MM
BOTTLE FOR OIL
GEAR 30T
GEAR 35T
GEAR 40T
GEAR 45T
GEAR 50T
GEAR 55T
GEAR 57T
GEAR 57T
GEAR 60T
WRENCH 6 X 7MM OPEN-ENDS
WRENCH 8 X 10MM OPEN-ENDS
WRENCH 13 X 16MM OPEN-ENDS
ELECTRICAL BARRIER
PHLP HD SCR M5-.8 X 12
P0765113
P0765114
P0765115
P0765116
P0765117
P0765119
P0765123
P0765124
P0765125
P0765126
P0765127
P0765128
P0765129
P0765131
P0765133
P0765134
P0765135
P0765136
P0765137
P0765138
P0765139
P0765140
P0765141
P0765142
P0765143
P0765144
P0765145
P0765146
P0765148
P0765150
P0765150-1
P0765150-2
P0765151
P0765152
P0765153
P0765157
P0765158
P0765159
P0765160
P0765161
P0765162
P0765163
P0765164
P0765165
P0765166
P0765167
P0765168
P0765169
P0765170
P0765172
P0765174
P0765175
P0765176
P0765177
P0765178
P0765179
P0765180
P0765181
P0765182
P0765183
P0765184
P0765185
P0765186
P0765187
P0765188
P0765189
P0765190
P0765191
P0765192
P0765193
P0765194
P0765195
P0765196
Please Note: We do our best to stock replacement parts whenever possible, but we cannot guarantee that all parts shown here
are available for purchase. Call (800) 523-4777 or visit our online parts store at www.grizzly.com to check for availability.
-66-
Model G0765 (Mfd. Since 5/15)
Steady Rest
173
173-5
173-6
173-4
173-3
173-2
173-1
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
173
173-1
173-2
173-3
STEADY REST ASSEMBLY
HEX NUT M8-1.25
LOCK WASHER 8MM
STEADY REST CASTING
173-4 P0765173-4
173-5 P0765173-5
173-6 P0765173-6
STEADY REST FINGER
ADJUSTING SCREW
T-BOLT M8-1.25 X 26
P0765173
P0765173-1
P0765173-2
P0765173-3
Model G0765 (Mfd. Since 5/15)
-67-
Labels & Cosmetics (Front)
255
254
256
257
259
258
253
261
252
251
260
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
251
252
253
254
255
256
MACHINE ID LABEL
THREAD DIAL CHART LABEL
READ MANUAL LABEL
GLASSES/FACE SHIELD WARNING LABEL
CHANGE DIRECTION NOTICE LABEL
ENTANGLEMENT WARNING LABEL
257
258
259
260
261
DRO LABEL
SPINDLE SPEED WARNING LABEL
GRIZZLY GREEN TOUCH-UP PAINT
HALF NUT LEVER LABEL
DISCONNECT POWER WARNING LABEL
-68-
P0765251
P0765252
P0765253
P0765254
P0765255
P0765256
P0765257
P0765258
P0765259
P0765260
P0765261
Model G0765 (Mfd. Since 5/15)
Labels & Cosmetics (Rear)
262
255
256
254
263
264
265
REF PART #
DESCRIPTION
REF PART #
254
255
256
262
GLASSES/FACE SHIELD WARNING LABEL
CHANGE DIRECTION NOTICE LABEL
ENTANGLEMENT WARNING LABEL
SPEED RANGE LABEL
263
264
265
P0765254
P0765255
P0765256
P0765262
DESCRIPTION
P0765263 OUTBOARD ENTANGLE WARNING LABEL
P0765264 THREAD CHART LABEL
P0765265 ELECTRICITY LABEL
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.
Model G0765 (Mfd. Since 5/15)
-69-
SECTION 10: APPENDIX
Threading Charts
Inch and metric thread charts for the Model G0765 are provided below for your reference. An inch thread
chart is provided on the headstock, but a metric chart is not.
TPI
GEARS
TPI
GEARS
A
B
C
D
A
B
C
D
12
40
65
⁄
30
26
40
60
⁄
65
13
40
65
60
30
28
20
65
⁄
35
14
40
65
⁄
35
32
20
65
⁄
40
16
40
65
⁄
40
36
20
65
⁄
45
18
40
65
⁄
45
38
20
50
60
57
19
40
50
60
57
40
20
65
⁄
50
20
40
65
⁄
50
44
20
65
⁄
55
22
40
65
⁄
55
48
20
65
⁄
60
24
40
65
⁄
60
52
20
60
⁄
65
Figure 101. Threads per inch chart (TPI).
mm/
pitch
Gear
A
B
C
D
0.4
20
57
40
55
0.5
20
57
45
50
0.6
20
60
57
50
0.7
30
45
40
60
0.8
40
55
35
50
1.0
30
60
57
45
1.25
45
40
35
50
1.5
65
40
35
60
1.75
35
60
57
30
2.0
35
45
65
40
Figure 102. Metric thread pitch chart.
-70-
Model G0765 (Mfd. Since 5/15)
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.
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