WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#CR9246 PRINTED IN CHINA
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.
Parts List ...................................................... 85
G0509 & G0509G 16" x 40" Lathe
WARRANTY AND RETURNS ........................ 86
-1-
INTRODUCTION
Foreword
We are proud to offer the Model G0509/G0509G
16" x 40" Lathe. This machine is part of a growing Grizzly family of fine metalworking machinery.
When used according to the guidelines set forth in
this manual, you can expect years of trouble-free,
enjoyable operation and proof of Grizzly’s commitment to customer satisfaction.
We are pleased to provide this manual with the
Model G0509/G0509G. It was written to guide
you through assembly, review safety considerations, and cover general operating procedures.
It represents our effort to produce the best documentation possible.
The specifications, drawings, and photographs
illustrated in this manual represent the Model
G0509/G0509G 16" x 40" Lathe as supplied
when the manual was prepared. However, owing
to Grizzly’s policy of continuous improvement,
changes may be made at any time with no obligation on the part of Grizzly. For your convenience,
we always keep current Grizzly manuals available
on our website at www.grizzly.com. Any updates
to your machine will be reflected in these manuals
as soon as they are complete. Visit our site often
to check for the latest updates to this manual!
Contact Info
If you have any comments regarding this manual,
please write to us at the address below:
C
/O Technical Documentation Manager
We stand behind our machines. If you have any
service questions or parts requests, please call or
write us at the location listed below.
Grizzly Industrial, Inc.
P.O. Box 2069
Bellingham, WA 98227-2069
Email: manuals@grizzly.com
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901
E-Mail: techsupport@grizzly.com
Web Site: http://www.grizzly.com
-2-
G0509 & G0509G 16" x 40" Lathe
Data Sheet Model G0509
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
Length/Width/Height.......................................................................................................76-3/8 x 33-7/16 x 51-3/16 in.
Foot Print (Length/Width)....................................................................................................................... 76 x 21-1/2 in.
Length/Width/Height............................................................................................................................. 81 x 36 x 64 in.
Electrical:
Switch....................................................................................... Magnetic Switches with Thermal Overload Protection
Cord Length............................................................................................................................................................ 6 ft.
Plug.......................................................................................................................................................................... No
Horsepower............................................................................................................................................3 - 4 HP
Number Of Speeds........................................................................................................................................... 2
Power Transfer ...................................................................................................................... Belt Drive to Gear
Bearings........................................................................................................... Shielded and Lubricated for Life
Horsepower..............................................................................................................................................1/8 HP
Number Of Speeds........................................................................................................................................... 1
Power Transfer ................................................................................................................................Direct Drive
Bearings.................................................................................................. Shielded and Permanently Lubricated
G0509 & G0509G 16" x 40" Lathe
-3-
Main Specifications:
Operation Info
Swing Over Bed......................................................................................................................................... 16 in.
Dist Between Centers.................................................................................................................................40 in.
Swing Over Cross Slide............................................................................................................................. 10 in.
Swing Over Saddle................................................................................................................................ 9-7/8 in.
Swing Over Gap......................................................................................................................................... 22 in.
Max Tool Bit Size...................................................................................................................................... 3/4 in.
Compound Travel...................................................................................................................................5-1/2 in.
Carriage Travel...........................................................................................................................................33 in.
Cross Slide Travel..................................................................................................................................8-1/2 in.
Headstock Info
Spindle Bore.................................................................................................................................................2 in.
No Of Spindle Speeds.....................................................................................................................................16
Range Of Spindle Speeds.......................................................................................................... 45 - 1800 RPM
Tailstock Travel...................................................................................................................................... 4-3/4 in.
Tailstock Barrel Diameter............................................................................................................................. 2 in.
Threading Info
No Of Inch Threads.........................................................................................................................................45
Range Of Inch Threads....................................................................................................................... 2 - 72 TPI
Range Of Longitudinal Feeds................................................................................................... 0.002 - 0.067 in.
No Of Longitudinal Feeds............................................................................................................................... 17
No Of Cross Feeds......................................................................................................................................... 17
Range Of Cross Feeds.................................................................................................... 0.0011 - 0.038 in./rev.
No Of Metric Threads......................................................................................................................................39
Range Of Metric Threads.................................................................................................................0.2 - 14 mm
No Of Modular Threads...................................................................................................................................18
Range Of Modular Threads............................................................................................................. 0.3 - 3.5 MP
No Of Diametrical Threads..............................................................................................................................21
Range Of Diametrical Threads............................................................................................................ 8 - 44 DP
-4-
Dimensions
Bed Width...................................................................................................................................................10 in.
Leadscrew Length...................................................................................................................................... 54 in.
Steady Rest Capacity.............................................................................................................................4-7/8 in.
Follow Rest Capacity............................................................................................................................. 2-7/8 in.
Faceplate Size............................................................................................................................................14 in.
Leadscrew Diameter............................................................................................................................. 1.120 in.
Feed Rod Diameter............................................................................................................................... 0.745 in.
Floor To Center Height...............................................................................................................................45 in.
Construction
Base Construction................................................................................................................................ Cast Iron
Headstock Construction....................................................................................................................... Cast Iron
Bed Construction..................................................................................................Induction Hardened Cast Iron
Body Construction................................................................................................................................ Cast Iron
Stand Construction............................................................................................................................... Cast Iron
Country Of Origin ................................................................................................................................................China
Warranty ............................................................................................................................................................ 1 Year
Serial Number Location ................................................................................................................. Front of Headstock
Assembly Time .................................................................................................................................................2 hours
Features:
Coolant System
Foot Brake
Full Length Splash Guard
Halogen Light
Headstock Gears Run in an Oil Bath
Inch/Metric Dials
Jog Button and Emergency Stop
Precision Ground V-Bed is Made of Meehanite Casting
Threading Dial
Totally Enclosed Universal Gearbox Allows Cutting of Inch, Metric, Whitworth, Module, and Diametral Threads
Accessories Included:
#4 to 6 Morse Taper Spindle Nose Sleeve
12" 4-Jaw Chuck
14" Face Plate
8" 3-Jaw Chuck with 2 Piece Jaws
Center Sleeve
Centers
Follow Rest
Manual
MT#4 Dead Center
Quick Change Tool Post
Service Tools
Steady Rest
Toolbox
G0509 & G0509G 16" x 40" Lathe
-5-
Data Sheet Model G0509G
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
Length/Width/Height.......................................................................................................76-3/8 x 33-7/16 x 51-3/16 in.
Foot Print (Length/Width)....................................................................................................................... 76 x 21-1/2 in.
Length/Width/Height............................................................................................................................. 82 x 33 x 65 in.
Electrical:
Switch........................................................................................................................Jog Button and Emergency Stop
Cord Length............................................................................................................................................................ 6 ft.
Plug.......................................................................................................................................................................... No
Horsepower............................................................................................................................................3 - 4 HP
Number Of Speeds........................................................................................................................................... 2
Power Transfer ...................................................................................................................... Belt Drive to Gear
Bearings........................................................................................................... Shielded and Lubricated for Life
Horsepower..............................................................................................................................................1/8 HP
Number Of Speeds........................................................................................................................................... 1
Power Transfer ................................................................................................................................Direct Drive
Bearings.................................................................................................. Shielded and Permanently Lubricated
-6-
G0509 & G0509G 16" x 40" Lathe
Main Specifications:
Operation Info
Swing Over Bed......................................................................................................................................... 16 in.
Dist Between Centers.................................................................................................................................40 in.
Swing Over Cross Slide............................................................................................................................. 10 in.
Swing Over Saddle................................................................................................................................ 9-7/8 in.
Swing Over Gap......................................................................................................................................... 22 in.
Max Tool Bit Size...................................................................................................................................... 3/4 in.
Compound Travel...................................................................................................................................5-1/2 in.
Carriage Travel...........................................................................................................................................33 in.
Cross Slide Travel..................................................................................................................................8-1/2 in.
Headstock Info
Spindle Bore.................................................................................................................................................2 in.
Spindle Size......................................................................................................................................... 3-9/64 in.
No Of Spindle Speeds.....................................................................................................................................16
Range Of Spindle Speeds.......................................................................................................... 45 - 1800 RPM
Spindle Bearings............................................................................................................... Super High Precision
Tailstock Info
Tailstock Travel...................................................................................................................................... 4-3/4 in.
Tailstock Barrel Diameter............................................................................................................................. 2 in.
Threading Info
No Of Inch Threads.........................................................................................................................................45
Range Of Inch Threads....................................................................................................................... 2 - 72 TPI
Range Of Longitudinal Feeds................................................................................................... 0.002 - 0.067 in.
No Of Longitudinal Feeds............................................................................................................................... 17
No Of Cross Feeds......................................................................................................................................... 17
Range Of Cross Feeds.................................................................................................... 0.0011 - 0.038 in./rev.
No Of Metric Threads......................................................................................................................................39
Range Of Metric Threads.................................................................................................................0.2 - 14 mm
No Of Modular Threads...................................................................................................................................18
Range Of Modular Threads............................................................................................................. 0.3 - 3.5 MP
No Of Diametrical Threads..............................................................................................................................21
Range Of Diametrical Threads............................................................................................................ 8 - 44 DP
Dimensions
Bed Width...................................................................................................................................................10 in.
Leadscrew Length...................................................................................................................................... 54 in.
Steady Rest Capacity.................................................................................................................... 1/2 - 4-1/2 in.
Follow Rest Capacity..................................................................................................................... 1/2 - 2-1/2 in.
Faceplate Size............................................................................................................................................14 in.
Leadscrew Diameter............................................................................................................................. 1.120 in.
Feed Rod Diameter............................................................................................................................... 0.745 in.
Floor To Center Height...............................................................................................................................47 in.
Construction
Base Construction................................................................................................................................ Cast Iron
Headstock Construction....................................................................................................................... Cast Iron
Bed Construction..................................................................................................Induction Hardened Cast Iron
Body Construction................................................................................................................................ Cast Iron
Stand Construction............................................................................................................................... Cast Iron
Country Of Origin ................................................................................................................................................China
Warranty ............................................................................................................................................................ 1 Year
Serial Number Location ................................................................................................................. Front of Headstock
Assembly Time .................................................................................................................................................2 hours
Features:
Precision Gound and Hardened V-bed is Made of Meehanite Casting
Totally Enclosed Universal Gearbox Allows Cutting of Inch, Metric, Whitworth, Modular and Diametral Threads
Headstock Gears Runs in an Oil Bath and are Hardened and Precision Ground for Smooth, Quiet and Vibration
Dual Inch/Metric Dials
Halogen Light
Coolant System
Full Length Splash Guard
Steady Rest and Follow Rest have Roller Tips
Dual Coolant Nozzles for Chambering Barrels
Extra Long Tailstock for Support
Tailstock can be Tightened with a Torque Wrench for Precise Alignment of Centers
Four Brass Tipper Bolts for Supporting Gun Barrels
Accessories Included:
#4 to 6 Morse Taper Spindle Nose Sleeve
12" 4-Jaw Chuck
14" Face Plate
8" 3-Jaw Chuck
Center Sleeve
Centers
Follow Rest with Roller Tips
MT#4 Dead Center
Quick Change Tool Post
Service Tools
Steady Rest with Roller Tips
Toolbox
-8-
G0509 & G0509G 16" x 40" Lathe
Identification
GG
FF
EE
CC
BB
BB
AA
A
DD
BB
B
C
E
D
H
F
G
I
J
L
K
M
N
O
P
Q
Z
Y
X
A. Headstock Low/High Range Lever
B. Headstock Speed Lever
C. Emergency Stop/RESET Button
D. Inching/Jog Button
E. 3-Jaw Chuck with 2-Piece Jaws
F. Steady Rest
G. Quick Change Tool Holder and Post
H. Follow Rest
I. Coolant Nozzle A
J. Halogen Work Lamp
K. Compound Rest Handwheel & Inch/Metric Sleeve
L. Coolant Nozzle B
M. Tailstock Barrel Lock Lever
N. Tailstock Lock Lever
O. Tailstock Handwheel
P. Apron Hand Pump
Q. Coolant Pump and Tank Access Panel
W
V
Figure 1. Model G0509G identification.
U
T
R. Spindle Rotation ON/OFF Lever
S. Threading Dial Assembly
T. Halfnut Lever
U. Apron Feed Direction Knob
V. Feed Selector Lever
W. Cross Slide Handwheel & Inch/Metric Sleeve
X. Foot Brake
Y. Apron Handwheel
Z. Manual Micrometer Stop
AA. Motor High/Low Range Switch
BB. Gearbox Ratio Levers
CC. Gearbox speed range lever
DD. Pump ON/OFF Switch
EE. Power ON Lamp
FF. Gearbox High/Low Range Lever
GG. Leadscrew/Feed Rod Direction Lever
S
R
G0509 & G0509G 16" x 40" Lathe
-9-
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.
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.
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 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.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
This symbol is used to alert the user to useful information about
proper operation of the machine.
NOTICE
SECTION 1: SAFETY
-10 -
G0509 & G0509G 16" x 40" Lathe
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 avoid
accidental slips, which could cause loss of workpiece control.
HAZARDOUS DUST. Dust created while using
machinery may cause cancer, birth defects, or
long-term respiratory damage. Be aware of dust
hazards associated with each workpiece material,
and 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.
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.
CHECK DAMAGED PARTS. Regularly inspect
machine for any condition that may affect safe
operation. Immediately repair or replace damaged
or mis-adjusted parts before operating machine.
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.
GUARDS & COVERS. Guards and covers reduce
accidental contact with moving parts or flying
debris. Make sure they are properly installed,
undamaged, and working correctly.
G0509 & G0509G 16" x 40" Lathe
EXPERIENCING DIFFICULTIES. If at any time
you experience difficulties performing the intended operation, stop using the machine! Contact our
Technical Support at (570) 546-9663.
-11-
Additional Safety Instructions for Lathes
1. UNDERSTANDING THE MACHINE: Read
and understand this manual before operating machine.
2. CLEANING MACHINE: To avoid entanglement and lacerations, do not clear chips by
hand. Use a brush, and never clear chips
while the lathe is operating.
3. USING CORRECT TOOLING: Always select
the right cutter for the job, and make sure
cutters are sharp. The right tool decreases
strain on the lathe components and reduces
the risk of unsafe cutting.
4. ELIMINATING PROJECTILE HAZARDS:
Always remove the chuck key, and never
walk away from the lathe with the chuck key
installed. Always make sure workpiece is
securely held in chuck before starting lathe.
A workpiece thrown from the chuck could
cause severe injury.
5. AVOIDING OVERLOADS: Always use the
appropriate feed and speed rates.
6. PREVENTING A CUTTING TOOL/CHUCK
CRASH: Always release automatic feeds
after completing a job, and never leave lathe
unattended while it is running.
7. AVOIDING STARTUP INJURIES: Make
sure workpiece, cutting tool, and tool post
have adequate clearance before starting
lathe. Check chuck clearance and saddle
clearance before starting the lathe. Make
sure spindle RPM is set correctly for part
diameter before starting the lathe. Large
parts can be ejected from the chuck if the
chuck speed is set too high.
8. CHUCK SAFETY: Chucks are surprisingly
heavy and awkward to hold, so protect your
hands and the lathe ways. Always use a
chuck cradle or piece of plywood over the
lathe ways.
9. WORKPIECE SUPPORT: Support a long
workpiece if it extends from the headstock
so it will not wobble violently when the lathe
is turned ON. If workpiece extends more
than 2.5 times its diameter from the chuck,
support it by a center or steady rest, or it
may deflect and fall out of the chuck while
cutting.
10. AVOIDING ENTANGLEMENT INJURIES:
Never attempt to slow or stop the lathe
chuck or mill spindle by hand; and tie back
long hair, ponytails, loose clothing, and
sleeves so they do not dangle.
Like all machinery there is potential danger
when operating this machine. Accidents are
frequently caused by lack of familiarity or
failure to pay attention. Use this machine
with respect and caution to lessen the possibility of operator injury. If normal safety
precautions are overlooked or ignored, serious personal injury may occur.
-12-
No list of safety guidelines can be complete.
Every shop environment is different. Always
consider safety first, as it applies to your
individual working conditions. Use this and
other machinery with caution and respect.
Failure to do so could result in serious personal injury, damage to equipment, or poor
work results.
G0509 & G0509G 16" x 40" Lathe
Glossary of Terms
The following is a list of common definitions, terms and phrases used throughout this manual as they relate
to this lathe and metalworking in general. Become familiar with these terms for assembling, adjusting or
operating this machine. Your safety is VERY important to us at Grizzly!
Arbor: A machine shaft that supports a cutting
tool.
Backlash: Wear in a screw or gear mechanism
that may result in slippage, vibration, and loss
of tolerance.
Carriage: A main housing that consists of the
apron and the saddle.
Cross Slide: A fixture attached to the lathe car-
riage that holds the compound rest and can be
moved in and out.
Compound Rest: A fixture attached to the cross
slide that holds the tool holder and can be
moved in and out.
Cutting Speed: The distance that a point on
a cutter moves in one minute, expressed in
meters or feet per minute.
Dial Indicator: An instrument used in setup
and inspection work that shows on a dial the
amount of error in size or alignment of a part.
Facing: In lathe work, cutting across the end of a
workpiece, usually to machine a flat surface.
Feed: The movement of a cutting tool into a
workpiece.
Gib: A tapered wedge located along a sliding
member to take up wear or to ensure a proper
fit.
Headstock: The major lathe component that
houses the spindle and motor drive system to
turn the workpiece.
Lathe Center: A lathe accessory with a 60°
point which is inserted into the headstock or
tailstock of the lathe and is used to support the
workpiece.
Leadscrew: The long screw that is driven by the
end gears and supplies power to the carriage.
Saddle: The upper portion of carriage that rides
on the lathe ways and supports the cross feed
and the follow rest.
Spindle: The revolving shaft that holds and
drives the workpiece.
Tailstock: A moveable fixture opposite of the
headstock on a lathe that has a spindle used
to support one end of a workpiece and for holding tools.
Tool Post: The part of the compound rest that
holds the tool holder.
Turre t : A machine fixture that holds multiple tools
and can be revolved and indexed to position.
Ways: The precision machined and flat tracks on
which the carriage and tailstock slide.
G0509 & G0509G 16" x 40" Lathe
-13-
SECTION 2: CIRCUIT REQUIREMENTS
220V 3-Phase
Operation
Serious personal injury could occur if you
connect the machine to the power source
before you have completed the set up process. DO NOT connect the machine to the
power source until instructed to do so.
Full Load Amperage Draw w/Pump
G0509 Low-Sp: 3HP 220V 3-Ph ........... 11 A m ps
High-Sp: 4HP 220V 3-Ph .......... 16 Amps
G0509G Low-Sp: 3.8HP 220V 3-Ph .... 9.5 Amps
High-Sp: 4.5HP 220V 3-Ph .....18 Amps
Circuit Requirements
We recommend connecting your machine to a
dedicated and grounded circuit that is rated for
the amperage given below. Never replace a circuit
breaker on an existing circuit with one of higher
amperage without consulting a qualified electrician to ensure compliance with wiring codes. If
you are unsure about the wiring codes in your
area or you plan to connect your machine to a
shared circuit, consult a qualified electrician.
For 220V 3-phase connection of this lathe, we
recommend wiring your machine with a L15-30
plug and recepticle. A qualified electrician should
determine the best cord to use in your environment.
G0509 & G0509G 220V 3-Phase ............ L15 -3 0
Grounding
In the event of an electrical short, grounding
reduces the risk of electric shock. The grounding
wire in the power cord must be properly connected
to the grounding prong on the plug; likewise, the
outlet must be properly installed and grounded.
All electrical connections must be made in accordance with local codes and ordinances.
Extension Cords
We do not recommend the use of extension cords.
Instead, arrange the placement of your equipment
and the installed wiring to eliminate the need for
extension cords.
Electrocution or fire could
result if this machine is
not grounded correctly
or if your electrical configuration does not comply with local and state
codes. Ensure compliance
by checking with a qualified electrician!
Phase Converter
If your lathe is connected to a phase converter
for 3-phase power, the power from the manufactured power leg (sometimes called the wild wire or
manufactured leg) can fluctuate.
Make sure that when you connect the lathe to
the phase converter that you connect the "Wild
Wire" or the "Manufactured Leg" from the phase
converter to the lathe input lead L2. Otherwise,
your lathe may not start properly, and magnetic
switch chatter and transformer damage will occur.
If swapping motor rotation direction, swap L1 &
L3, but do not touch L2.
-14-
G0509 & G0509G 16" x 40" Lathe
SECTION 3: SETUP
Setup Safety
This machine presents
serious injury hazards
to untrained users. Read
through this entire manual to become familiar with
the controls and operations before starting the
machine!
Wear safety glasses during the entire set up process!
This machine and its components are very heavy.
Use power lifting equipment such as a fork lift
or hoist to move heavy
items.
Items Needed for
Setup
The following items are needed to complete the
setup process, but are not included with your
machine:
Description Qty
• Fork Lift or Hoist (Rated 5000 lbs................1
Your machine was carefully packaged for safe
transportation. Disassemble the crate and remove
the packaging materials from around your machine
to inspect it. If you discover the machine is damaged, please immediately call Customer Service at (570) 546-9663for advice.
Save the containers and all packing materials for
possible inspection by the carrier or its agent.
Otherwise, filing a freight claim can be difficult.
G0509 & G0509G 16" x 40" Lathe
When you are completely satisfied with the condition of your shipment, inventory the contents.
-15-
Inventory
After all the parts have been removed from the
shipping crate, you should have the following
items with your lathe.
Installed Components (Figure 2) Qty.
A. 8" Three-Jaw Chuck w/Jaws ...................... 1
B. Steady Rest ................................................ 1
C. Quick Change Tool Post w/Tool Holder ..... 1
D. Follow Rest ................................................. 1
Loose Components (Figure 3)
E. 12" Four-Jaw Universal Chuck ................... 1
F. 14" Faceplate ............................................. 1
G. Little Red Tool Box ..................................... 1
H. Tool Holder (1-Installed) ............................. 2
I. Wrench Set 6/7, 8/10, 9/11, 11/13,
12/14, 17/19, 22/24, and 27/30mm ....... 1 ea
J. Camlock T-Wrench ..................................... 1
K. Tool Holder/Apron Lock T-Wrench ............. 1
L. 4-Jaw Chuck T-Wrench .............................. 1
M. 3-Jaw Chuck T-Wrench .............................. 1
N. 4-Jaw Chuck Camlock Studs ..................... 6
O. Oil Bottle ..................................................... 1
R. Jacking Studs W/Nuts ................................ 6
S. Hex Wrench Set 2, 2.5, 3, 4, 5, 6, 8,
10, and 12mm ....................................... 1 ea
T. Spider Screws ............................................ 4
U. #2 Phillips Screwdriver ............................... 1
V. #2 Standard Screwdriver ............................ 1
W. Tailstock Lock Lever .................................. 1
X. Handwheel Handle Set ......................... 1 ea
Y. Carbide Tip Dead Center MT#4 ................. 1
Z. Standard Tip Dead Center MT#4 ............... 1
M
C
B
D
F
G
L
J
K
I
Q
R
V
H
S
T
U
A
Figure 2. Installed components.
E
N
O
P
Y,Z
X
W
Figure 3. Packaged components.
-16 -
NOTICE
Some hardware/fasteners on the inventory
list may arrive pre-installed on the machine.
Check these locations before assuming that
any items from the inventory list are missing.
G0509 & G0509G 16" x 40" Lathe
Site Considerations
Clean Up
Floor Load
Your lathe is a heavy load distributed in a small
footprint. Place this machine on concrete floors
only. The floor MUST be level, or the lathe frame
and ways may distort over time.
Placement Location
Consider existing and anticipated needs, service
panel access, length of material to be loaded into
the lathe, and space for auxiliary stands, work
tables or other machinery when establishing a
location for your lathe (see Figure 4 for minimum
wall clearances).
Children and visitors may be
seriously injured if unsupervised. Lock all entrances to
the shop when you are away.
DO NOT allow unsupervised
children or visitors in your
shop at any time!
The unpainted surfaces are coated with a waxy
oil to prevent corrosion during shipment. Remove
this protective coating with a solvent cleaner or
citrus-based degreaser such as Grizzly’s G7895
Citrus Degreaser. To clean thoroughly, some
parts must be removed.
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used to
clean machinery. DO
NOT use these products
to clean the machinery.
Many cleaning solvents
are toxic if inhaled.
Minimize your risk by only
using these products in a
well ventilated area.
Keep
Workpiece
Loading Area
Unobstructed
7
Mounting Holes
"
/
8
80"
220V 3-Phase
Supply
Lathe
1
/
2
7
/
14 "
8
Left
Footprint
21 "
46 "
1
/
2
Right
Footprint
Figure 4. Machine clearances and bolt pattern.
36"
24"
20 "
60"
1
/
2
G0509 & G0509G 16" x 40" Lathe
-17-
Lifting & Moving
the Lathe
This lathe is an extremely
heavy machine. Serious
personal injury or death
may occur if safe lifting
and moving methods are
not followed. Seek assistance from a professional
rigger if you are unsure
about your abilities or
maximum load ratings of
your lifting equipment.
This lathe can be placed on the included leveling
studs and cast-iron feet. If the lathe must be secured to the floor, refer to a professional machine
installer for options. In either case, the lathe must
be sitting flat at each mounting point, and the ways
must be perfectly level. The bed cannot be twisted
or bent. If a misalignment condition arises, shim
the lathe where it mounts to the floor, or adjust the
feet studs until the bed and ways are in alignment
as shown by precision machinist's levels.
Double check weight ratings and connections of
the lifting system, cables, chains pins, and clevis
links before lifting and moving the lathe to your
prepared location. Do not attempt to lift or move
this lathe if you are unsure about any aspect. Seek
assistance from a professional rigger if required.
When lifting, you must move the carriage and
tailstock to the right and lock into place as shown
in Figure 6 to provide counter-balance.
Figure 6. Lifting strap locations.
Make sure the slings or chains are routed so when
the lathe is lifted and the chains or straps are tight,
the control rod, lead screw, or feed rod are not
Remember, the headstock carries most of
bent.
the weight of this machine (see Figure 5) for safe
chain or strap routing and connection.
Figure 5. Lifting rod setup for the lathe.
-18-
G0509 & G0509G 16" x 40" Lathe
Mounting to Shop
Floor
We recommend that the lathe is bolted to the floor.
Because floor materials may vary, floor mounting
hardware is not included. Since this is a precision
machine, it is important to level the machine with
a precision level when mounting.
Bolting to Concrete Floors
Lag shield anchors with lag bolts (Figure 7) and
anchor studs (Figure 8) are two popular methods for anchoring an object to a concrete floor.
We suggest you research the many options and
methods for mounting your machine and choose
the best that fits your specific application.
NOTICE
Anchor studs are stronger and more permanent alternatives to lag shield anchors;
however, they will stick out of the floor,
which may cause a tripping hazard if you
decide to move your machine.
Figure 7. Typical lag shield anchor and lag bolt.
Figure 8. Typical anchor stud.
G0509 & G0509G 16" x 40" Lathe
-19 -
Test Run & Break-In
4. Rotate the red emergency stop button (Figure
10) clockwise so it pops out.
NOTICE
NEVER shift lathe gears when lathe is
operating, and make sure both the half-nut
lever and the feed lever are disengaged
before you start the lathe! Otherwise the
lathe will feed the apron into the chuck or
tailstock, causing severe lathe damage.
The purpose of the test run is to make sure the
lathe and its safety features operate correctly. If
you encounter any problems, stop the lathe and
refer to Troubleshooting on Page 43 for corrections.
To begin the test run & break-in procedure:
1. Make sure the lathe is lubricated and the
headstock oil level is full. Refer to Lubrication
on Page 41.
2. Make sure the chuck is correctly secured to
the spindle. Refer to Mounting Chuck and Faceplate on Page 35 for details.
Green Power
Lamp
Pump Switch
Jog Button
Emergency Stop Button
Motor High/Low
Range Switch:
1 = Low
I = Off
2 = High
3. Disengage the feed and half-nut levers, and
move the spindle ON/OFF lever to the neutral
position, as shown in Figure 9.
Feed Lever is
Horizontal
(Disengaged)
Spindle Rotation ON/OFF Lever in
Central Position (Motor OFF)
Figure 9. Apron controls positioned for test run.
Half-Nut Lever
is Pulled Up
(Disengaged)
Figure 10. Motor High/Low range switch.
5. On the G0509G lathe, make sure the four
spider bolts are either removed or they are
tight in the spindle so they will not rattle out
and contact the lathe end cover, causing
damage when the lathe is running.
6. Make sure the pump switch is OFF, and turn
the motor high/low range switch (Figure 10)
to "1" and the green power lamp will glow.
7. Put on safety glasses, tie back longhair,
sleeves, and loose clothing.
8. Turn the work lamp ON and OFF.
9. Point the coolant nozzles into the chip pan,
turn the pump switch ON, make sure coolant
flows, and then turn the pump switch OFF.
10. Push the jog button (Figure 10) a few times
and the spindle motor will turn ON and the
chuck will rotate.
-20-
G0509 & G0509G 16" x 40" Lathe
11. Move the three headstock levers so they are
positioned as shown in Figure 11 so 330
RPM is selected.
330
RPM
Selected
with the
Speed
Lever
14. Return the spindle rotation ON/OFF lever to
the central position (OFF), reset the emergency stop button, and restart the lathe.
15. Push the foot brake, and the lathe should
come to a quick stop.
—If the lathe does not stop, push the emer-
gency stop button, and disconnect the lathe
from power. Refer to Troubleshooting on
Page 43 for correction.
Speed Range Lever
is Pointing to the Left
Gearbox High/Low
Lever Pointing Down
Figure 11. Headstock controls.
12. Move the spindle rotation ON/OFF lever
(Figure 9) down until the chuck begins to
turn. The top of the chuck should turn toward
you.
—If the chuck is rotating away from you, then
you must complete the Changing Motor Rotation procedure on Page 22, and
repeat the entire Test Run procedure.
13. Push the emergency stop button.
—If the lathe does not stop, move the spindle
rotation ON/OFF lever to the central position (OFF), and disconnect the lathe from
power. Refer to Troubleshooting on Page
43 for correction.
16. Return the spindle rotation ON/OFF lever to
STOP, restart the lathe, and let the lathe run
for a minimum of 10 minutes at 330 RPM in
both directions. DO NOT LEAVE THE LATHE
RUNNING UNATTENDED!
17. After 10 minutes, stop the lathe, and move
the headstock speed levers to select the next
highest RPM. Run the lathe in both directions
for 10 minutes.
18. Repeat for the remaining RPM ranges progressively increasing in RPM. When these
steps are complete, the lathe is broken in.
19. Drain and refill the lubricant in the headstock
®
with Mobil DTE
Oil or an equivalent. Refer
to Lubrication on Page 40 for the procedure
and apron oil change interval.
G0509 & G0509G 16" x 40" Lathe
-21-
Changing Motor
Rotation
If the chuck turns away from you at the top of the
chuck when the spindle lever is in the down position, motor rotation must be reversed, by swapping the position of two of the three motor power
supply wires.
To change the direction of the motor:
1. DISCONNECT LATHE FROM POWER!
2. Remove the main electrical box cover (Figure
12) at the rear of the lathe, and swap L1 and
L3 input wires (Figure 12).
Disconnect the lathe from
power before working on
wiring, and get help from an
electrician if you are unsure
about your wiring skills and
codes. Electrocution or fire
could result if this warning
is ignored!
Power Input Wire
Location L1, L2, or L3.
Figure 12. Motor power supply junction block.
-22-
G0509 & G0509G 16" x 40" Lathe
Tailstock Setup
The tailstock alignment was set at the factory with
the headstock. However, we recommend that you
take the time to ensure that the tailstock is aligned
to your own desired tolerances.
To align the tailstock:
1. Center drill a 6'' long piece of bar stock on both ends. Set it aside for use in Step 4.
2. Make a dead center by turning a shoulder
to make a shank. Flip the piece over in the
chuck and turn a 60° point (Figure 13). As
long as it remains in the chuck, the point of
your center will be accurate to the spindle
axis.
Note:Keep in mind that the point will have
to be refinished whenever it is removed and
returned to the chuck.
4. Attach a lathe dog to the bar stock from
Step 1 and mount it between the centers (as shown in Figure 14).
Figure 14. Bar stock mounted on centers.
5. Turn approximately 0.010" off the diameter.
6. Mount a dial indicator so that the plunger is on the tailstock barrel (Figure 15).
Figure 13. Finished dead center.
3. Place the dead center in your tailstock.
G0509 & G0509G 16" x 40" Lathe
Looking down from above.
Figure 15. Adjusting for headstock end taper.
7. Measure the stock with a micrometer. If
the stock is wider at the tailstock end, the
tailstock needs to be moved toward the cutter
the amount of the taper (Figure 15).
-23-
— If the stock is thinner at the tailstock end,
the tailstock needs to be moved away from
the operator by at least the amount of the
taper (Figure 16).
Gap Removal
Your lathe has a gap section below the spindle
that can be removed for turning large diameter
parts. This gap was installed, then ground at the
factory during lathe assembly for precise fit and
alignment. Factors during original lathe assembly apply additional forces to the gap; therefore,
replacing the gap to the original position will be
very difficult. We don't recommend removing
the gap. If removed for turning large diameter
parts, reinstallation to exact factory alignment
is nearly impossible. The only option is to
then leave the gap out and lose carriage travel
near the chuck.
Looking down from above.
Figure 16. Adjusting for tailstock end taper.
NOTICE
DO NOT forget to lock the tailstock to the
ways after each adjustment.
8. Loosen the tailstock lock lever and adjust the
tailstock offset by the amount of the taper
by turning the adjustment set screw (Figure
17). Turn another 0.010'' off of the stock and
check for taper. Repeat as necessary until
the desired amount of accuracy is achieved.
Adjustment Screw
To remove the gap:
1. Remove the four cap screws from the bottom
of the gap and two from the ends of the ways
(see Figure 18).
Bed and Way Cap Screws
Jack Nut and Pin
Figure 18. Lathe gap and pin arrangement.
Figure 17. Tailstock adjustment locations.
-24-
2. Using a 14mm wrench, tighten the jack nuts
to draw the pins up and out of the gap piece.
Figure 18.
3. Tap the outside of the gap with a dead blow
hammer to loosen, and remove the gap section.
G0509 & G0509G 16" x 40" Lathe
SECTION 4: OPERATION
Operation Safety
Damage to your eyes, lungs, and ears could
result from using this machine without
proper protective gear. Always wear safety
glasses, a respirator, and hearing protection
when operating this machine.
Loose hair and clothing could get caught in
machinery and cause serious personal injury. Keep
loose clothing and long
hair away from moving
machinery.
NOTICE
If you have never used this type of machine
or equipment before, WE STRONGLY RECOMMEND that you read books, trade 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.
NOTICE
NEVER move levers while the lathe is running, and NEVER force any lever when
shifting.
NOTICE
Complete the Test Run & Break-In procedure on Page 20 before using this lathe for
any cutting or threading operations; otherwise, gear box damage will occur.
G0509 & G0509G 16" x 40" Lathe
-25-
Spindle Speeds
Spindle Speed Lever
The spindle speed or RPM is controlled by two
speed control levers at the top of the headstock
and the 2-speed motor switch located on the lathe
base (Figure 19). The 2-speed motor allows for
the low and high range speed options presented
in columns 1 and 2 shown in Figure 19. Below is
an example how to set the spindle to 1800 RPM.
See Figure 19 for the following example:
1. Move the 2-speed motor switch so it points to position 1.
Note: Position "1" on the switch activates
both #1 columns on the speed chart.
Position "2" activates both #2 columns on the
speed chart.
Position "I", the central position on the
switch, cuts power to the motor.
2. Move the spindle orange/blue range lever so
it points to the right-hand orange-low range
column number 1.
Note:The spindle orange/blue range lever
must point to which ever range column your
RPM is listed in.
Spindle
Orange/Blue
Range Lever
3. Move the spindle speed lever so the indicator points to 1800 at the bottom of the orange
column number 1.
Note:The spindle speed lever must point to
one of four speeds within the column in question.
-26-
2-Speed
Motor
Switch
Figure 19. Spindle speed control.
G0509 & G0509G 16" x 40" Lathe
Gearbox Speed
Range lever
NOTICE
ONLY shift the gearbox levers when spindle
speed is less than 500 RPM and the gearbox speed range lever is in neutral. NEVER
force a lever. If the lever will not engage, use
the jog button when applicable so the teeth
mesh and the lever drops into position.
The gearbox has a series of levers used for controlling the feed rod and leadscrew feed rates in
relationship with the spindle speed. Based on the
threading and feed rate chart, you can shift the
gearbox to accommodate an elaborate array of
feed rates.
Depending on the spindle orange/blue range
lever position, the gearbox speed range lever
(Figure 20) has eight available positions for
various threading and power feed operations.
Spindle
Orange/Blue
Range Lever
Use Orange
Selections
2,4,6,8
—When the spindle orange/blue range lever
(Figure 20) is pointing to the blue-spindle
speed chart, the left-hand selections 1, 3,
5, 7 are available.
—When the spindle orange/blue range lever
(Figure 20) is pointing to the orange-spindle speed chart, the right-hand selections
2, 4, 6, 8 are available.
Example:
In Figure 20, the spindle orange/blue range lever
is pointing to the orange-spindle speed chart, and
position "8" is selected from the available 2, 4, 6, 8 positions.
Gearbox Speed
Range Lever
Figure 20. Gearbox controls.
G0509 & G0509G 16" x 40" Lathe
-27-
Feed Rod and
Gearbox Ratio
Leadscrew
NOTICE
ONLY shift the gearbox levers when spindle
speed is less than 500 RPM and the gearbox speed range lever is in neutral. NEVER
force a lever. If the lever will not engage, use
the jog button when applicable so the teeth
mesh and the lever drops into position.
The leadscrew/feed rod lever (Figure 21) engages and disengages the leadscrew and feed rod
simultaneously. When the lever is moved up or
down, the rotation of the leadscrew and feed rods
are simultaneously reversed.
The three-position gearbox high/low range lever
(Figure 21) will put the gearbox into high range
"H", low range "L", or neutral "I".
Note: Make sure to loosen the carriage lock
(Figure 28) when apron power feed or threading
are to be used. The carriage lock is used only to
increase carriage stability when facing operations
are in process.
Levers
NOTICE
ONLY shift the gearbox levers when spindle
speed is less than 500 RPM and the gearbox speed range lever is in neutral. NEVER
force a lever. If the lever will not engage, use
the jog button when applicable so the teeth
mesh and the lever drops into position.
The gearbox has a series of levers used for controlling the feed rod and leadscrew feed rates in
relationship with the spindle speed.
Based on the threading and feed rate chart, you
can shift the gearbox to accommodate an elaborate array of feed rates. The three gearbox range
levers (Figure 22) have multiple lettered positions (Figure 24), and when moved according
to the threading chart and example on the next
page, you can quickly change the feed rate. The
example on the next page shows the lathe setup
to cut a "3.5mm" thread using the "LCR8Y" lever
combination.
Note: The change gear must be in the position
shown in Figure 23.
Leadscrew/Feed
Rod Direction Lever
(Output)
Gearbox
High/Low
Range
Lever
(Input)
Figure 21. Gearbox input and output controls.
-28-
Figure 22. Gearbox range levers.
G0509 & G0509G 16" x 40" Lathe
Figure 23. Change gear location.
LCR8Y=3.5mm
G0509 & G0509G 16" x 40" Lathe
Figure 24. General usage.
-29-
Manual Feed
Power Feed
Handwheels
Carriage Handwheel
The carriage handwheel (Figure 25) moves the
carriage left or right along the bed. Remember
the carriage lock must be loosened to allow for
carriage movement during manual and power fed
operations.
Compound Slide Handwheel
The compound slide handwheel can adjust the
cross slide at any angle. Angle adjustment is
locked by two cap screws on the base of the
top slide. The graduated dial can be rotated to
read metric or inch conventions by turning it 180°
degrees by holding the handwheel with one hand
and turning the dial hub with the other.
Cross Slide Handwheel
The cross slide handwheel moves the cross slide
toward and away from the work. Turning the dial
clockwise moves the slide toward the workpiece.
The graduated dial can be rotated to read metric
or inch conventions by turning it 180° degrees by
holding the handwheel with one hand and turning
the dial hub with the other.
Carriage
Lock
Compound Slide
Handwheel
Cross Slide
Handwheel
Direction Knob
Your lathe can cut left or right while feeding or in
and out when facing. The feed direction is controlled by the feed direction knob shown in Figure
26.
Power Feed Direction Knob
Figure 26. Feed direction knob.
Tool Post & Holder
Cutting tools can be secured and removed by
tightening or loosening the clamping screws in
the top of the tool holder (Figure 27). A threaded
stud is mounted in the top of the holder and has
a knurled thumb wheel. Rotating the thumb wheel
raises or lowers the tool holder so the cutting tool
can be indexed on the workpiece. The handle on
the tool post is rotated to lock and unlock the tool
holder, which rests in the dovetail ways. The tool
post may be rotated by loosening the nut at the
top of the tool post.
-30-
Carriage Handwheel
Knurled Thumbwheel
Figure 25. Handwheel locations.
Figure 27. Quick change tool post.
G0509 & G0509G 16" x 40" Lathe
Half-Nut Lever and
Thread Dial
The half-nut lever (Figure 28) clamps and releases
the half-nut, which clamps around the leadscrew.
The lever is only engaged while cutting threads
and is not designed for general power feeding
operations. For general purpose feeding, use the
feed lever (Figure 28). This lathe uses inch lead
screws, and the thread dial chart shown in Figure 29 is only used for inch threading. For all other
threading operations, the half nut lever must stay
engaged until the threads are complete.
Note: If the apron feed lever (Figure 28), is
engaged, the halfnut lever is blocked from use;
and when the half-nut lever is engaged, the apron
feed lever is blocked from use. If both levers are
engaged at the same time, apron damage will
occur.
This column indicates
when you can use the
thread dial based on
which thread TPI is being
cut.
This column indicates
which position on the
thread dial you must
reengage the halfnut.
When the thumb knob (Figure 28) is loosened,
the thread dial housing pivots so its gear can
be engaged or disengaged from the lead screw.
When engaged, the dial turns with the lead screw
and spindle.
Note:Always loosen the carriage lock (Figure
28) when threading or using the apron power
feed. The carriage lock is used only to increase
carriage stability during facing operations.
Carriage Lock
Apron
Feed Lever
Dial
Thumb Knob
Figure 29. Threading dial chart.
Threading
Half-Nut Lever
Figure 28. Threading dial and half-nut lever.
G0509 & G0509G 16" x 40" Lathe
Dial Chart
-31-
Steady Rest
Follow Rest
The steady rest supports long, small diameter stock that otherwise could not be turned
because of deflection, and can be used instead
of the tailstock when facing the end of a long
workpiece.
On the G0509G, the brass wear pads at the ends
of the fingers have been replaced with bearings.
Having bearings here maintains consistent nonwearing support throughout the cut.
To use the steady rest:
1. Secure the steady rest to the bedway from
below with the locking plate, then snug the
mounting bolt (Figure 30).
Mounting Bolt
The follow rest is normally used with small diameter stock to prevent the workpiece from “springing” under pressure from the turning tool.
On the G0509G, the brass wear pads at the ends
of the fingers have been replaced with bearings.
Having bearings here maintains consistent nonwearing support throughout the cut. The steady
rest can also replace the tailstock to allow for cutting tool access at the end of your workpiece.
To use the follow rest:
1. Secure the follow rest to the saddle with the two cap screws (Figure 31).
Figure 30. Steady rest in place.
2. Adjust the fingers until the bearings make
contact and support the workpiece. Do not
over tighten the fingers against the workpiece
or you will cause workpiece deflection.
3. Oil the finger bearings and the rolling surfaces
while in use to create non-marring workpiece
support and to reduce finger wear.
-32-
Figure 31. Follow rest secured to saddle.
2. Adjust the fingers until the bearings make
contact and support the workpiece. Do not
over tighten the fingers against the workpiece
or you will cause workpiece deflection.
3. Oil the finger bearings and the rolling surfaces
while in use to create non-marring workpiece
support and to reduce finger wear.
G0509 & G0509G 16" x 40" Lathe
Tailstock Controls
Centers
The tailstock (Figure 32) serves many functions. The primary use is holding centers and drill
chucks. The barrel has an MT#4 (morse taper #4)
bore and is imprinted with graduations in millimeters and inches.
Tailstock
Handwheel
Figure 32. Tailstock controls.
Barrel Lock
Lever
Side Lock Lever
Tailstock Handwheel
Turning the handwheel advances or retracts the
barrel in the tailstock. The graduated dial on the
handwheel is adjustable.
Barrel Lock Lever
This lever locks the tailstock barrel in place.
A tailstock center supports stock that is too long
to be supported by the chuck alone. The tailstock
barrel and dead center have an MT#4 taper.
Included with this lathe is an MT#4 to MT#6 spindle adapter sleeve. If you need to install a center
in the spindle when using the face plate, you can
do so by using this adapter sleeve.
Before installing a center or arbor, make sure that
the mating surfaces are perfectly clean. These
parts will last longer and remain accurate if properly maintained. If oil is present on the mating
surfaces, the tapers will not interlock.
To install the center, insert the end of it into the
tailstock bore until it seats. Once the workpiece
is installed, the force of a mounted workpiece will
fully seat the taper.
When using a dead center (Figure 33), the
tailstock barrel should protrude about
more than 2
barrel.
To remove the dead center, back the tailstock
barrel all the way into the tailstock casting. The
dead center will pop out. Be sure to catch it when
it comes out to avoid damaging the tip.
3
⁄4" as indicated by the scale on the
1
⁄2 " and not
Side Lock Lever & Torque
Tightening (G0509G)
This removable lever locks the tailstock in place
on the lathe bed. The socket that it fits into will
accept a
To repeat very accurate vertical alignment positioning, tighten the tailstock here with an inchpound torque wrench. If you must, you can use a
foot-pound torque wrench but DO NOT exceed 40
lbs/ft of torque or you may damage the ways and
the tailstock. When tightening the tailstock down
to the maximum torque of 40 lbs/ft, the center
point will be drawn down approximately 0.006"
from the normal centerline when the tailstock is
resting free on the ways.
G0509 & G0509G 16" x 40" Lathe
1
⁄2-inch drive torque wrench.
Figure 33. Dead center installed in tailstock.
-33-
Spider (G0509G)
Your lathe is equipped with a set of outboard
spindle supports otherwise known as a "spider" (Figure 34). Use the spider when a long
workpiece has the potential for wobble or vibration
when it extends through the outboard side of the
headstock.
The tips of the spider screws have brass wear
pads that hold the workpiece without causing
indents in the finish.
When installed, always use the jam nuts to lock
each spider screw in position. Merely tightening
the spider screws against the workpiece and leaving the jam nuts loose is not safe. The spiders
screws may loosen up during lathe operation and
crash into the lathe end cover.
Manual Micrometer
Stop
This lathe is equipped with a manual micrometer
stop (Figure 35). Toward the end of the cut and as
the tool approaches the shoulder of a workpiece,
disengage the carriage and then manually finish
the cut by hand-operating the carriage.
The micrometer stop is not an automatic carriage
stop. If used as such the carriage will crash into
the chuck, causing damage and possibly destroying the lathe.
Manual Micrometer
Stop
Remove the spider screws when not in use.
Always disconnect the lathe from power
when installing, removing, or adjusting the
spider screws. Ignoring this warning can
lead to personal injury or machine damage.
Figure 34. Spider.
Figure 35. Manual micrometer stop.
-34-
G0509 & G0509G 16" x 40" Lathe
Chuck & Faceplate
Mounting
This lathe is shipped with the 3-jaw chuck installed.
This is a scroll-type chuck, meaning that all three
jaws move in unison when adjusted.
The 4-jaw chuck, on the other hand, features
independent jaws. This chuck is used for square
or unevenly-shaped stock.
If either chuck cannot hold your workpiece, the
cast-iron faceplate has slots for T-bolts that hold
standard or custom clamping hardware. With the
correct clamping hardware, this faceplate will hold
non-cylindrical parts such as castings.
The chucks and faceplate have a D-6 Camlock
mount. Please note that there are lines stamped
into the cam and on the chuck body. A chuck key
is used to turn the locking cams (Figure 37) to
secure/unsecure the chuck/faceplate.
To remove a chuck or faceplate:
1. DISCONNECT LATHE FROM POWER!
2. Place a piece of plywood across the lathe
ways and position it just under the chuck so
the ways are protected.
3. Turn a cam with the chuck key until the cam
lock mark aligns with the cam release datum
line shown in Figure 37.
Cam Release Datum Line
Cam
Lock
Mark
Figure 37. Cam and lock marks.
The chuck is heavy and is awkward to handle. Always protect the ways when removing or installing a chuck, and make sure
that you make a support cradle (Figure 36).
Use this cradle when installing or removing
chucks. Ignoring this warning may lead to a
severe crushing or amputation injury!
4. Unlock the other cams in the same manner.
Make sure to support the chuck as you align
the last cam. The chuck may come off at this
point, so it is important that the weight is
supported by an adequate chuck cradle.
5. Remove the chuck key.
—If the chuck is still tight on the spindle,
tap the back of the chuck with a rubber or
wood mallet while supporting the bottom of
the chuck.
—If the chuck does not immediately come off,
rotate the spindle approximately 60˚ and
tap again. Make sure all the marks on the
cams and spindle are in proper alignment.
Figure 36. Wooden chuck support cradle.
G0509 & G0509G 16" x 40" Lathe
-35-
To install a chuck or faceplate:
1. DISCONNECT LATHE FROM POWER!
2. Place a piece of plywood across the lathe
ways and position it just under the chuck.
7. Turn a camlock with the chuck key until the
cam line falls between the "V" marks (Figure
38).
Cam Release Datum Line
3. Place the chuck on the cradle.
4. Make sure the chuck taper and spindle taper
mating surfaces are perfectly clean.
5. Inspect and make sure that all camlock studs
are undamaged, are clean and lightly oiled,
and that the camlock stud cap screws are in
place and snug.
NOTICE
Never install a chuck or faceplate without
having the camlock cap screws in place
or fully tightened. If you ignore this notice,
once installed the chuck may never be able
to be removed since the camlock studs will
turn with the camlocks and never release.
6. Align the chuck-to-spindle timing marks
(Figure 39), and slide the chuck onto the
spindle.
Cam
Lock
Mark
V's
Figure 38. Cam and lock marks.
8. Lock the other cams in a star pattern so the
chuck is drawn up evenly on all sides without
any chance of misalignment.
Note:If any of the cam lock marks (Figure 38)
do not fall between the "V" marks when the
cam lock is tight, you must adjust the offending camlock stud as discussed in Camlock Stud Adjustment on Page 37.
9. Remove the chuck key.
-36-
G0509 & G0509G 16" x 40" Lathe
Camlock Stud
Adjustment
If this is the case, you will have to remove the
chuck and fine-tune the camlock stud adjustment.
See Figure 39 for which direction to turn the
camlock studs.
When fitting a chuck or faceplate with camlock
studs, or when mounting a new chuck or faceplate, it may be necessary to adjust the camlock
studs.
In order to properly install or adjust one or more
camlock studs, you must remove a stud locking
cap screw, then thread the camlock stud in or out
until the line on the side of the stud is flush with
the top of the chuck casting (Figure 39). This is
an initial adjustment.
When you place the chuck onto the lathe spindle,
you may find that one or more camlocks do not
fully point between the "V" marks on the chuck.
Initial Adjustment:
Camlock Stud
Alignment Groove
is Flush with Chuck
Surface
Once you have adjusted the camlock studs, install
the chuck or faceplate as outlined in To Install Chuck or Faceplate on Page 36.
NOTICE
Never install a chuck or faceplate without
having the camlock cap screws in place
or fully tightened. If you ignore this notice,
the chuck may never be able to be removed
since the camlock studs will turn with the
camlocks and never release.
CHUCK
Camlock
Stud
Camlock Cap Screw is Tight But Camlock
Stud Can Still Rotate Back and Forth Slightly
INCORRECTCORRECT
Cam
Release
Datum
Turn Stud
In One Turn
Chuck-to-Spindle
Timing Mark
INCORRECT
Turn Stud Out
One Turn
Between
Arrows
G0509 & G0509G 16" x 40" Lathe
Figure 39. Camlock stud alignment.
-37-
ACCESSORIES
SECTION 5: ACCESSORIES
H2670—HSS Square Tool Bits ½" x ½" x 4
Our ground tool bits are M-2 HSS, making them
some of the most durable tool bits around. Make
your own specialized cutters in any shape using
a silicon carbide grinding wheel (G8235-37) on
your grinder.
Figure 40. H2670 HSS Square Tool Bits.
G9777—20-Pc. Carbide Tipped Tool Bit Set
An exceptional value for carbide lathe tool bits!
This twenty-piece set offers tremendous savings
over bits sold individually, plus every type is duplicated and ready at hand when you need it. The
carbide is C-6 grade for cutting steel and alloys.
Figure 42. G9777 20 Pc. Carbide Tool Set.
H5687—8-Pc. Pre-Ground Tool Bit Set
Tired of grinding your blank high speed steel tool
bits? We've done it for you! 8-pc set comes with
these sharpened profiles: offset right and left hand
tools with chip breaker, straight and chip breaker
style threading tools, internal threading tool, parting tool, boring tool and turning tool. These tool
bits are evenly hardened to better than 64C.
G7978—15 HP/12 HP Start, Phase Converter
Add 3-phase electrical supply with this rotary phase converter! Operate single or multiple
motors, transformers, and resistance loads at
100% power and 95% efficiency while saving big
dollars at cheaply metered, single-phase electrical rates. For application assistance, please call
our technical support group at (570) 546-9663.
Built with precision sealed bearings, designed for
heavy-duty use on hollow workpieces.
3
⁄4" & 1" Bar
3
⁄4" Tool
1
⁄2"~ 3⁄4" Tool
1
1
⁄2"~3⁄4" Bits
⁄2"~3⁄4" Bits
G7038Z—Boring Bar
G7040—Carbide Inserts for Steel (5 pk)
G7048—Carbide Inserts for Cast Iron (5 pk)
Figure 47. G7038Z Boring Bar.
G7030—Threading Tool Holder
G7041—Carbide Inserts for Steel (5 pk)
G7049—Carbide Inserts for Cast Iron (5 pk)
Figure 45. MT#4 bull nose rolling centers.
G9889—MT#4 Long Nose Precision Center
Provides critical tool clearance. Adjustable thrust
bearings, 60° tip and 30° clearance relief angle.
Figure 46. MT#4 Long Nose Center
Figure 48. G7030 Threading Tool Holder.
G7033—Internal Threading Tool Holder
G7042—Carbide Inserts for Steel (5 pk)
G7050—Carbide Inserts for Cast Iron (5 pk)
Figure 49. G7033 Int. Threading Tool Holder.
G0509 & G0509G 16" x 40" Lathe
-39-
SECTION 6: MAINTENANCE
Basic Maintenance
Check for the following conditions and repair
or replace when necessary:
• Loose mounting bolts and chuck.
• Worn switch or safety features.
• Worn or damaged power cord.
• Any other condition that could hamper the
safe operation of this machine.
Lubrication
Take the time to wipe down and oil your lathe after
use. Do not leave metal chips and cutting fluid on
the ways. We recommend using ISO 68 or a general motor oil unless otherwise specified.
Saddle, Apron, Cross-Slide, and Compound
Rest, see Figures 50 & 51
Apply lubrication to the saddle through all ball
oilers on the saddle, slides, and rests. Make sure
the oil level in the apron is full as seen through the
sight glass. Change the apron oil for the first time
after one month of operation, and then at one year
intervals. Use the same oil as in the headstock,
which is ISO 68 or a general 10W-30W motor oil.
Figure 51. Slide ball oilers.
Apron Oil Pump, see Figure 52
To lubricate the saddle slide and the cross slide
way guides, pull the oil pump knob out and hold
it for two or three seconds, the pump will draw oil
from the apron reservoir, and then push the knob
in so the oil is pumped through drilled passages to
the way guides. Repeat this process until the way
guides are lubricated. Lubricate the guides once
before and once after using the lathe. If the lathe
is in an environment that has high moisture or is
very dirty, increase the lubrication interval.
Apron Oil
Pump
Apron Oil Fill
Figure 50. Saddle, compound rest, and
cross slide ball oilers.
-40-
Sight
Glass
Oil Drain Plug
Figure 52. Apron Oil Pump.
G0509 & G0509G 16" x 40" Lathe
External Gearing, Headstock and Gearbox,
see Figure 53
Brush on a coat of lithium grease on the teeth
of the drive gears. Avoid getting grease on the
belt or pulleys when lubricating. Change the oil in
the headstock after the first 2 hours of use; then,
every 6 months depending on usage. Use ISO 68
or a general 10W-30W motor oil.
Note: The headstock oil fill plug is located on the
top of the headstock plate, labeled OIL.
Lead Screw, Feed Rod, Slides, and Ways, see
Figure 55
Be sure to clean and lubricate the leadscrew,
feed rod and switch control rod. The lead screw
and feed rod have a bearing on the tail stock end
support that requires one to two squirts of oil.
Apply oil to the ways and slides after each use.
Wipe the ways with a clean rag prior to lubrication
to ensure that no grime is carried along with your
lubricant into friction-sensitive areas. Applying oil
to the bedways and other bare metal parts also
protects the lathe from rust and pitting.
Headstock
Drain
Figure 53. Headstock lubrication.
Tailstock , see Figure 54
The tailstock is fitted with two ball oilers. The
tailstock barrel may be oiled directly. Apply oil
each week, or after every few uses (depending
on the frequency of operation). Be sure to clean
the slide ways for the tailstock and lift the tailstock
and squirt a few drops of oil on the ways. It is a
good idea to remove the tailstock once a month
and wipe the bottom thoroughly and relubricate
the way tracks.
Gearbox Fill
Gearbox Drain
Way
Rack
Ball
Oilers
Lead Screw
Feed Rod
Switch Control Rod
Figure 55. General lubrication.
Figure 54. Tailstock lubrication.
G0509 & G0509G 16" x 40" Lathe
-41-
Coolant System
BIOLOGICAL & POISON
HAZARD! Use the correct
personal protection
equipment when handling
cutting fluid and by
follow federal, state,
and fluid manufacturer
requirements to properly
dispose of cutting fluid.
The coolant pump and reservoir are located in the
base behind the vented cover on the tailstock end
of the lathe.
The chip pan is fitted with a screen, so pay attention that it does not become clogged, fill the chip
pan with coolant, and cause the pump to operate
in an empty reservoir. Pump damage will cccur if
it is run for a period of time without coolant.
2. Pump the old cutting fluid out of the reservoir
and dispose of according to state and federal
environmental laws.
3. Using a magnet, brush, and rags, clean out
metal chips from the bottom of the reservoir
and the screen. Flush with hot soapy water if
required.
4. Refill the reservoir with applicable watersoluble cutting fluid. Closely follow the fluid
manufacturer's instructions for mixing.
5. Open the valve on the coolant nozzle.
6. Turn the coolant pump ON (Figure 57) to
prime the coolant system and to see if the
coolant is cycling properly.
7. Replace the access cover.
To perform regular maintenance on the cutting fluid system:
1. Remove the access cover at the rear of the lathe (Figure 56).
Figure 56. Coolant pump and reservoir.
Figure 57. Coolant pump switch.
-42-
G0509 & G0509G 16" x 40" Lathe
SECTION 7: SERVICE
Troubleshooting
Review the troubleshooting and procedures in this section to fix your machine if a problem
develops. If you need replacement parts or you are unsure of your repair skills, then feel free
to call our Technical Support at (570) 546-9663.
Motor & Gearbox
SymptomPossible CausePossible Solution
Motor will not
start.
Fuses or circuit
breakers trip
open.
Machine is
loud, belt slips,
or bogs down
during a cut.
Gear change
levers will not
shift into position.
Loud, repetitious
noise coming
from machine
at or near the
motor.
Motor is loud
when cutting.
Overheats or
bogs down in the
cut.
1. Main power panel switch is OFF.
2. Emergency switch is pushed in.
3. Spindle rotation switch at fault.
4. Circuit breaker or fuse has tripped.
5. No voltage or open connection.
6. Motor direction switch is at fault.
7. Power switch or magnetic contactor is at
fault.
8. Motor is at fault.
1. Short circuit in line cord or plug.
2. Short circuit in motor or loose connections.
3. Incorrect fuses or circuit breakers in power
supply.
1. Excessive depth of cut.
2. RPM or feed rate wrong for operation.
3. Dull cutters.
4. Belt is slipping.
5. Belt is at fault.
1. Gears not aligned in headstock.1. Rotate spindle by hand until gear falls into place.
1. Pulley set screws or keys are missing or
loose.
2. Motor fan is hitting the cover.
1. Excessive depth of cut or feed rate.
2. RPM or feed rate wrong for cutting operation.
3. Cutting tool is dull.
4. Gear setup is too tight, causing them to bind.
1. Turn the main power panel switch ON.
2. Emergency switch is pushed in.
3. Rotate the switch so it points to 1 or 2, or replace
bad switch.
4. Seek an electrician to troubleshoot and repair the
shop power supply.
5. Test circuit, replace wires and connections as
required.
6. Replace switch.
7. Replace power switch or magnetic contactor.
8. Replace motor.
1. Inspect cord or plug for damaged insulation and
shorted wires.
2. Inspect all connections on motor for loose or shorted
terminals or worn insulation.
3. Install correct fuses or circuit breakers.
1. Decrease depth of cut.
2. Refer to RPM feed rate chart for appropriate rates.
3.
Sharpen or replace cutters.
4. Remove grease or oil on belt or pulleys/tighten belt
tensioner against low range belt.
5. Replace belt.
1. Inspect keys and set screws. Replace or tighten if
necessary.
2. Tighten fan or shim cover, or replace items.
1. Decrease depth of cut or feed rate.
2. Refer to RPM feed rate chart for appropriate rates.
3. Sharpen or replace the cutting tool.
4. Readjust the gear setup with a small amount of
backlash so the gears move freely and smoothly
when the chuck is rotated by hand.
G0509 & G0509G 16" x 40" Lathe
-43-
Troubleshooting
Operation and Work Results
SymptomPossible CausePossible Solution
Entire machine
vibrates excessively upon
startup and while
running.
Cutting tool or
machine components vibrate
excessively during cutting.
Can't remove
tapered tool from
tailstock quill.
Cross slide, compound rest, or
carriage feed has
sloppy operation.
Cross slide,
compound rest,
or carriage feed
handwheel is
hard to move.
Bad surface finish.
Inaccurate turning results from
one end of the
workpiece to the
other.
Chuck jaws won't
move or don't
move easily.
Carriage won't
feed, or hard to
move.
Tailstock quill will
not feed out of
tailstock.
1. Workpiece is unbalanced.
2. Worn or broken gear present.
3. Chuck or faceplate has become unbalanced.
4. Spindle bearings at fault.
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. Quill was not retracted all the way back into the
tailstock.
2. Debris was not removed from taper before
inserting into quill.
1. Gibs are out of adjustment.
2. Handwheel is loose.
3. Lead screw mechanism worn or out of adjustment.
1. Carriage lock is engaged.
2. Gibs are loaded up with shavings or grime.
3. Gib screws are too tight.
4. Backlash setting too tight (cross slide only).
5. Bedways are dry.
1. Wrong RPM or feed rate.
2. Dull tooling or poor tool selection.
3. Too much play in gibs.
4. Tool too high.
1. Headstock and tailstock are not properly
aligned with each other.
1. Chips lodged in the jaws.1. Remove jaws, clean and lubricate chuck threads,
1. Gears are not all engaged or broken.
2. Gibs are too tight.
3. Loose screw on the feed handle.
4. Lead screw shear pin has sheared.
1. Quill lock lever is tightened down. 1. Turn lever counterclockwise.
1. Reinstall workpiece so it is as centered with the
spindle bore as possible.
2. Inspect gears and replace if necessary.
3. Rebalance chuck or faceplate; contact a local
machine shop for help.
4. Tighten or replace spindle bearings.
1. Check for debris, clean, and retighten.
2. Reinstall cutting tool so no more than 1/3 of the total
length is sticking out of tool holder.
3. Tighten gib screws at affected component.
4. Replace or re-sharpen cutting tool.
5. Use the recommended spindle speed.
1. Turn the quill handwheel until it forces taper out of
quill.
2. Always make sure that taper surfaces are clean.
1. Tighten gib screw(s).
2. Tighten handwheel fasteners.
3. Tighten any loose fasteners on lead screw mechanism.
1. Loosen the carriage lock.
2. Remove gibs, clean ways/dovetails, lubricate, and
readjust gibs.
3. Loosen gib screw(s) slightly, and lubricate
bedways.
4. Slightly loosen backlash setting by loosening the
locking screw and adjusting the spanner ring at the
end of the handle.
5. Lubricate bedways and handles.
1. Adjust for appropriate RPM and feed rate.
2. Sharpen tooling or select a better tool for the intended operation.
3. Tighten gibs.
4. Lower the tool position.
1. Realign the tailstock to the headstock spindle bore
center line.
and replace jaws.
1. Adjust gear positions or replace.
2. Loosen gib screw(s) slightly.
3. Tighten.
4. Correct for cause of shear pin breakage, and
replace shear pin.
-44-
G0509 & G0509G 16" x 40" Lathe
Gibs
There are three main gib adjustments for the
lathe. They are: the cross-slide gib, the compound
slide gib, and the saddle gib.
Cross-slide Gib, see Figure 58
The gib on the cross-slide is adjusted by the two
screws located at each end. To adjust, loosen the
set screw located along the edge of the cross-slide.
This set screw is provided for locking the slide for
certain operations. After making the adjustments
detailed below, tighten the set screw until it just
touches the gib.
The gib is wedge shaped and by loosening the
screw closest to the operator and then tightening
the opposite screw, the slide will become looser.
Conversely, loosening the screw farthest away
from the operator and tightening the closer screw
will tighten the gib. Do notover tighten.
Adjust the gib so that it creates a slight drag when
the slide is in motion. Test the ease of motion with
the gib slightly loose. Begin tightening the gib and
test after making small adjustments. When a slight
drag is detected the gib is properly adjusted.
Gib Screw
Set Screw
Figure 58. Adjusting the cross-slide gib.
Compound Gib, see Figure 59
The gib on the compound is adjusted by the same
method as the gibs on the cross-slide, except
the screw closest to the operator (when the compound slide is aligned with the cross slide) must
be loosened and the screw furthest from the
operator tightened to make the gib tighter.
NOTICE
When adjusting gibs, keep in mind that the
goal of gib adjustment is to remove unnecessary sloppiness from the slide movement
without causing them to bind. Loose gibs
may cause poor finishes on the workpiece.
Over tightening may cause premature
wear.
Gib Screw
Set Screw
Figure 59. Adjusting the compound rest gib.
G0509 & G0509G 16" x 40" Lathe
-45-
Saddle Gib and Carriage Lock, see Figure 60
Located at the back side of the saddle, the saddle
gib is adjusted by the same method as the gibs on
the cross-slide and compound rest. However, you
must make sure that you loosen the carriage lock
bolt. This bolt is used to lock the carriage in place
for increased rigidity when making face cuts.
Cross Slide
Leadscrew
Adjustment
It is important that the saddle gib be properly
adjusted. A loose gib will cause finish problems in
a workpiece. A gib adjusted too tightly will cause
premature wear.
Carriage
Lock Bolt
Figure 60. Carriage lock bolt.
Backlash is the amount of play found in a lead
screw. It can be found by turning the cross slide
handwheel in one direction, then turning the
handwheel the other direction. When the cross
slide begins to move, the backlash has been
taken up.
Note: Avoid the temptation to overtighten the
cross slide backlash screw. Overtightening will
cause excessive wear to the sliding block and
lead screw. Reducing backlash to less than 0.010"
is impractical and reduces cross slide life.
Backlash is adjusted by tightening or loosening
the cap screws shown in Figure 61. These screws
draw a wedge-type nut against the lead screw and
main nut. If you get the gib too tight, loosen the
cap screws a few turns, tap the cross slide a few
times with a rubber or wooden mallet, and turn the
handle slowly back and forth until the handle turns
freely. To readjust the backlash, rock the handle
back and forth, and tighten the screw slowly until
the backlash is at approximately 0.010" as indicated on the handwheel dial.
-46-
Cap Screws
Figure 61. Cross slide backlash adjustment
socket head cap screws.
G0509 & G0509G 16" x 40" Lathe
Leadscrew Endplay
Adjustment
After a long period of time, you may find that the
lead screw for threading operations may develop
a bit of end play. This lathe is designed so that this
play can be removed.
To remove leadscrew end play:
1. DISCONNECT LATHE FROM POWER.
Halfnut Adjustment
To adjusted the halfnut gibs, remove the thread
dial to expose the two gib screws (Figure 63).
Your goal is to remove sloppiness in the ways
without causing the half nut to bind. You will loosen the jam nuts and turn the two set screws clockwise until slight tension is felt in the set screw. The
gibs will then be slightly pre-loaded. Tighten the
jam nuts when finished.
2. Using a 3mm hex wrench, loosen the retainer
set screw (Figure 62).
Adjustment
Nut and
Set Screw
Leadcrew
Figure 62. Leadscrew end play adjustment
location.
3. Engage the halfnut lever and manually rotate
the manual apron feed handwheel back and
forth slightly to test for end play. While you
are doing this, tighten the adjustment nut with
a 22mm wrench until all leadscrew-endplay is
removed.
Apron
Half Nut Gib
Adjustments
Points
(Thread Dial
Removed)
Figure 63. Typical halfnut gib adjustment
screws.
Leadscrew
4. Tighten the set screw.
G0509 & G0509G 16" x 40" Lathe
-47-
V-Belts
Brake & Switch
During the life of the lathe, it will be necessary to
compensate for belt wear.
To adjust or replace the V-belts on the lathe:
1. DISCONNECT LATHE FROM POWER!
2. Open the lathe base end cover (Figure 64).
3. Using a wrench, adjust the belt tension hex
nuts (see Figure 64) until there is approximately
pressed firmly in the center between the pulleys.
Note:Replace all three belts as a matched
set even if one shows cracking, glazing, or
fraying.
4. Reinstall the rear cover.
Deflection
1
⁄2" belt deflection on each belt when
Pulley
After consistent lathe usage, it will be necessary
to compensate for brake lining wear.
To adjust the brake and brake switch:
1. DISCONNECT LATHE FROM POWER!
2. Open the lathe base end cover (Figure 64).
3. Using a wrench, adjust the brake rod (Figure
65) so, when the foot pedal is pressed, the
brake band firmly clamps the drum. When
released, the brake band should be loose on
the drum.
Note:Replace the brake band when the fric-
tion material is worn down to approximately
2mm thick.
1-2 mm
Gap
Belt Tension
Pulley
Figure 64. V-belt adjustment.
Adjustment
Brake Rod
Brake Switch Cam
and Cap Screw
Figure 65. Brake band and switch.
4. Adjust the brake switch cam so when in the
released position, there is 1 to 2mm gap
between the cam and the brake switch pushrod roller (Figure 65).
5. Reinstall the safety cover and test foot brake
operation.
-48-
G0509 & G0509G 16" x 40" Lathe
Bearing Preload
4. Using a 3mm hex wrench, remove the spanner
nut locking set screw (Figure 67).
This lathe is shipped from the factory with the
spindle bearing preload adjusted. If the spindle
ever develops a bit of end-play and the workpiece
finish suffers, you can adjust the bearing preload to remove the end-play and improve the
workpiece finish.
Adjusting the bearing preload requires using a
spanner wrench or a punch and hammer. You
can either purchase the spanner wrench at a tool
store or fabricate one, using the diagram shown
below in Figure 66.
Figure 66. Spanner wrench diagram.
5. Place the chuck key in the cam-lock socket to
keep the spindle from rotating.
6. Using a spanner wrench, or hammer-andpunch, loosen the spanner lock nut (Figure
68) counterclockwise three turns.
Note:You may have to tap on the outboard
spindle tube as explained in Step 13 to help
unload the spindle and break the spanner nut
loose.
To adjust the preload:
1. Run the lathe for 20 minutes on high speed
to bring the lathe to normal operating
temperature.
2. DISCONNECT THE LATHE FROM THE
POWER SOURCE!
3. Remove the chuck, shift the spindle to
neutral, then remove the lathe end cover to
expose the outboard spindle and spanner nut
(Figure 67).
Set Screw
Spanner
Nut
Figure 68. Loosening outboard spanner nut.
7. Place a dial indicator on the cross slide and
move the carriage toward the headstock until
the contact point of the indicator touches the
spindle face (Figure 69).
Figure 67. Outboard spindle/spanner nut.
G0509 & G0509G 16" x 40" Lathe
Figure 69. Dial indicator setup.
-49-
8. Move the carriage an additional 0.100" toward
the headstock.
9. Using a 5mm hex wrench, remove the headstock lid to expose the headstock gears.
10. Remove the preload spanner nut set screws
(Figure 70) with a 3mm hex wrench.
Spindle
Preload
Spanner
Set Screw
Nut
Since it can take great effort to turn the pre-
load spanner nut, you may find it difficult to
know if you have gone past the zero endplay point or not. You may find it easiest to
have someone watch the dial for you while
you tighten the inner spanner nut. If you think
you may have gone past the zero end-play
point, take the time to unload the bearings
as described earlier, then re-tighten the inner
spanner nut until you know you have reached
the correct setting.
When you are confident that you have adjust-
ed the preload spanner nut until zero spindle
end-play and but preload exists, you now
must move the spanner nut inward and additional 0.001" to set the preload.
14. To set the preload, rotate the spanner nut an
additional 0.16" as shown in Figure 72.
Figure 70. Preload spanner nut.
11. Place the chuck key in the cam-lock socket
and keep the spindle from rotating.
12. Using a spanner wrench, or hammer-andpunch, loosen the preload spanner nut
(Figure 70) counterclockwise 1 turn.
13. Place a wooden block over the outboard end
of the spindle, hit the block soundly with a
metal or heavy dead blow hammer (Figure
71). Your goal is to slide the spindle forward
just enough to introduce spindle end-play that
you can feel by hand.
0.16"
Figure 72. Preload spanner nut adjustment.
15. Reinstall the setscrews in the preload span-
ner nut.
16. Position the gasket correctly, and re-install
the headstock cover.
17. Tighten the outboard spindle spanner nut
until it is snug and reinstall the locking setscrew.
Figure 71. Introducing detectable end-play.
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18. Reinstall the lathe end cover, and make sure
the counterweights (Figure 73) do not rub on
the cover when the lathe is turned on.
G0509 & G0509G 16" x 40" Lathe
To confirm that the bearings are correctly preloaded:
1. Make sure all safety precautions have been
taken and setup steps are complete to make
the lathe fully operational.
2. Install the chuck and tighten the jaws.
Spindle Balancing
After the spindle has been broken in, or if the lathe
has been used for a considerable amount of time,
you should adjust the spindle weights to minimize
spindle vibration.
3. Set the spindle speed to its highest setting.
4. Connect the lathe to power and turn the lathe
spindle ON.
5. Let the lathe run for 20 minutes.
6. Turn the spindle OFF, disconnect lathe from
power, and check the temperature of the
spindle.
—If the spindle nose is hotter than you can
comfortably keep your hand on, the preload is too tight and you must repeat the
bearing preload adjustment procedure.
—If the spindle nose is slightly warm to the
touch, you have correct bearing preload.
Now complete Spindle Balancing procedure.
To minimize spindle vibration:
1. Run the lathe for five minutes on the fastest
RPM.
2. DISCONNECT LATHE FROM POWER!
3. Open the side cover, loosen the counter
weight set screws (Figure 73), and reposition
one or both counterweights to a new position around the circumference of the spanner
nut.
Set Screw
G0509 & G0509G 16" x 40" Lathe
Counterweight
Figure 73. Spindle counterweights.
4. Close the side cover, reconnect to power,
restart the lathe, and run at 900 RPM.
5. Place your hand on the headstock cover and
feel for harmonic vibration.
6. Repeat Steps 2–5 until vibration is reduced
to a minimum.
7. Now, repeat Steps 2–5 at 1800 RPM until
vibration is reduced to a minimum.
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Main Electrical Box
Note:See Pages 56 and 57 for wire connections.
Fuse
(FU1)
Fuse
(FU2)
Spindle Motor
Contactor (KM1)
Spindle Motor
Thermal Relay (FR1)
Spindle Motor
Contactor (KM2)
Coolant Motor
Thermal Relay (FR2)
Coolant Motor
Contactor (KA1)
Main Power
Contactor (KA0)
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Transformer
(TC)
Figure 74. Electrical box wiring.
Belt Cover
Safety Limit
Switch (SQ3)
Main Power
Circuit Breaker
(FU1)
Figure 75. Main Power switch (S) connections.
G0509 & G0509G 16" x 40" Lathe
Motors & Switches
Note:See Pages 56 and 57 for wire connections.
Figure 76. Spindle motor (M1) connections.
Figure 77. Pump motor (M2) connections.
Figure 79. Power-in junction box connections.
Figure 80. Brake switch (SQ1).
Figure 78. Belt cover safety switch (SQ3).
G0509 & G0509G 16" x 40" Lathe
Figure 81. Spindle motor rotation switches
(SQ4, SQ5).
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Control Panel & Switches
Note:See Pages 56 and 57 for wire connections.
Figure 82. Motor speed switch (SA), side 1.
Power Lamp
(HL1)
Pump Switch
(FR2)
Figure 84. Control panel).
Figure 83. Motor speed switch (SA), side 2.
Emergency Stop
Switch (SB0)
Jog Button
(SB1)
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Figure 85. Work lamp (EL).
G0509 & G0509G 16" x 40" Lathe
Component Relationship Diagram
OFF
If a phase converter is being
used, connect the “Wild Wire”
or “Manufactured Leg” to L2 or
contactor and transformer failure
may result!
See Figures74 through 85 component locations, and
Pages 56 and 57 for wire connections.
SB2: Pump Switch
TC: Transformer
S: Motor Speed Switch
EL: Work Lamp
HL1: Power Lamp
M1: Spindle Motor
M2: Pump Motor
FU2: Fuse
FU3: Fuse
SB1: Jog Button
SQ1: Brake Switch
SQ2: Work Lamp Switch
G0509 & G0509G 16" x 40" Lathe
SQ3: Belt Cover Limit Switch
SQ4: Spindle Motor Switch
SQ5: Spindle Motor Switch
SB0: Emergency Stop Button
KM1: Spindle Motor Contactor
KM2: Spindle Motor Contactor
FR1: Spindle Motor Thermal Relay
KA1: Pump Contactor
KA0: Master Power Contactor
FR2: Pump Motor Thermal Relay
FU1: Main Circuit Breaker
Safety labels warn about machine hazards and ways to prevent injury. The owner of this machine
MUST maintain the original location and readability of the labels on the machine. If any label is
removed or becomes unreadable, REPLACE that label before using the machine again. Contact
Grizzly at (800) 523-4777 or www.grizzly.com to order new labels.
Parts List
G0509 & G0509G 16" x 40" Lathe
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WARRANTY AND 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.
-86-
G0509 & G0509G 16" x 40" Lathe
WARRANTY CARD
Name _____________________________________________________________________________
Street _____________________________________________________________________________
City _______________________ State _________________________ Zip _____________________
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.
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3. What is your annual household income?
____ $20,000-$29,000 ____ $30,000-$39,000 ____ $40,000-$49,000
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CUT ALONG DOTTED LINE
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6. How many of your machines or tools are Grizzly?
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