MODEL G4000 9" X 19" BENCH LATHE

MODEL G4000
9" X 19" BENCH LATHE
OWNER'S MANUAL
COPYRIGHT © APRIL, 2009 BY GRIZZLY INDUSTRIAL, INC., REVISED DECEMBER, 2015 (MN)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
(FOR MODELS MANUFACTURED SINCE 8/09) #TS11444 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.
Table of Contents
INTRODUCTION................................................ 2
Manual Accuracy............................................ 2
Contact Info.................................................... 2
Machine Description....................................... 2
Identification.................................................... 3
Machine Data Sheet....................................... 4
SECTION 1: SAFETY........................................ 6
Safety Instructions for Machinery................... 6
Additional Safety Instructions for.................... 8
Metal Lathes................................................... 8
SECTION 2: POWER SUPPLY......................... 9
SECTION 3: SETUP........................................ 11
Needed for Setup.......................................... 11
Unpacking..................................................... 11
Inventory....................................................... 12
Cleanup......................................................... 13
Site Considerations....................................... 13
Moving & Placing Lathe................................ 14
Mounting....................................................... 15
Belt Tensioning............................................. 16
Lever Knob................................................... 16
Test Run....................................................... 16
Spindle Bearing Break-In.............................. 17
Recommended Adjustments......................... 17
SECTION 4: OPERATIONS............................ 18
Basic Controls............................................... 18
Chuck/Faceplate Mounting & Removal........ 20
3-Jaw Chuck................................................. 21
4-Jaw Chuck................................................. 23
Faceplate...................................................... 24
Centers......................................................... 25
Offsetting Tailstock....................................... 27
Aligning Tailstock.......................................... 27
Drilling with Tailstock.................................... 29
Steady Rest.................................................. 29
Follow Rest................................................... 30
Cross Slide................................................... 30
Compound Slide........................................... 31
Tool Holders................................................. 31
Spindle Speed.............................................. 32
Feed Rate Lever........................................... 35
Change Gears.............................................. 36
Power Feed.................................................. 38
(Non-Threading)............................................ 38
Threading Controls....................................... 40
Understanding Threading Charts.................. 42
SECTION 5: ACCESSORIES.......................... 43
SECTION 6: MAINTENANCE.......................... 47
Schedule....................................................... 47
Cleaning & Protecting................................... 47
Lubrication.................................................... 47
Daily Lubrication Chart................................. 48
SECTION 7: SERVICE.................................... 50
Troubleshooting............................................ 50
Adjusting Gibs............................................... 52
Compound Slide Backlash............................ 53
Adjusting Half-Nut......................................... 53
SECTION 8: WIRING....................................... 54
Wiring Safety Instructions............................. 54
Wiring Diagram............................................. 55
SECTION 9: PARTS........................................ 56
Headstock..................................................... 56
Drive Belt...................................................... 57
Belt Tension Lever........................................ 58
Change Gears.............................................. 59
Electrical & Tools.......................................... 60
Quick Change Gears.................................... 61
Apron Breakdown......................................... 62
Saddle & Cross Slide.................................... 64
Compound Slide........................................... 65
Tailstock........................................................ 66
Steady Rest.................................................. 67
Follow Rest................................................... 68
Bed................................................................ 69
Label Placement........................................... 70
WARRANTY AND RETURNS......................... 73
INTRODUCTION
Manual Accuracy
Contact Info
We are proud to offer this manual with your new
machine! We've made every effort to be exact
with the instructions, specifications, drawings,
and photographs of the machine we used when
writing this manual. However, sometimes we still
make an occasional mistake.
We stand behind our machines. If you have
any questions or need help, use the information
below to contact us. Before contacting, please get
the serial number and manufacture date of your
machine. This will help us help you faster.
Also, owing to our policy of continuous improvement, your machine may not exactly match the
manual. If you find this to be the case, and the difference between the manual and machine leaves
you in doubt, check our website for the latest
manual update or call technical support for help.
Before calling, find the manufacture date of your
machine by looking at the date stamped into the
machine ID label (see below). This will help us
determine if the manual version you received
matches the manufacture date of your machine.
Grizzly Technical Support
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Email: techsupport@grizzly.com
We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: manuals@grizzly.com
Machine Description
Manufacture Date
of Your Machine
For your convenience, we post all available manuals and manual updates for free on our website
at www.grizzly.com. Any updates to your model
of machine will be reflected in these documents
as soon as they are complete.
The metal lathe is used to remove material from
a rotating workpiece, which is held in place on
the spindle with a chuck or faceplate. The cutting
tool is mounted on the carriage or tailstock and
moved against the spinning workpiece to perform
the cut.
The typical metal lathe cutting operations include
facing, turning, parting, drilling, reaming, grooving,
knurling, and threading. There are a wide variety
of tools and workpiece holding devices available
for each of these operations.
The Model G4000 is great lathe for those getting started in metalworking. It has a number of
features and capabilities typically only found on
higher-end lathes, and it is jam-packed with standard accessories. The compact size allows this
lathe to be mounted to an existing workbench or
on the optional Model G4001 stand.
-2-
Model G4000 (Mfg. Since 8/09)
Identification
Belt
Tensioning
Lever
Steady
Rest
Follow
Rest
Spindle
Switch
Change Gear
& Drive System
Cover
4-Way
Tool
Post
Compound
Slide
Tailstock
Feed
Rate
Lever
Cross Slide
Longitudinal
Leadscrew
Bedway
Apron
Thread
Dial
Feed Lever
Half-Nut Lever
Figure 1. Model G4000 identification.
Note: For detailed descriptions of basic controls and components, refer to Basic Controls beginning on
Page 18.
NOTICE
If you have never used this type of machine or equipment before, WE STRONGLY RECOMMEND
that you read books, review industry 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.
Model G4000 (Mfg. Since 8/09)
-3-
Machine Data Sheet
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G4000 9" X 19" BENCH LATHE
Product Dimensions:
Weight.............................................................................................................................................................. 250 lbs.
Width (side-to-side) x Depth (front-to-back) x Height........................................................................... 37 x 20 x 15 in.
Footprint (Length x Width)............................................................................................................................ 37 x 16 in.
Shipping Dimensions:
Type.......................................................................................................................................................... Wood Crate
Content........................................................................................................................................................... Machine
Weight.............................................................................................................................................................. 293 lbs.
Length x Width x Height....................................................................................................................... 41 x 22 x 20 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement........................................................................................................... 110V, Single-Phase, 60 Hz
Prewired Voltage.................................................................................................................................................. 110V
Full-Load Current Rating..................................................................................................................................... 11.6A
Minimum Circuit Size.............................................................................................................................................. 15A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length................................................................................................................................................. 6 ft.
Power Cord Gauge......................................................................................................................................... 12 AWG
Plug Included.......................................................................................................................................................... Yes
Included Plug Type................................................................................................................................................ 5-15
Switch Type........................................................................................................................... Forward/Reverse Switch
Motors:
Main
Type................................................................................................................... ODP Capacitor-Start Induction
Horsepower............................................................................................................................................. 3/4 HP
Phase............................................................................................................................................ Single-Phase
Amps......................................................................................................................................................... 11.6A
Speed................................................................................................................................................ 1725 RPM
Power Transfer .................................................................................................................................. Belt Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Main Specifications:
Operation Info
Swing Over Bed..................................................................................................................................... 8-3/4 in.
Distance Between Centers........................................................................................................................ 19 in.
Swing Over Cross Slide............................................................................................................................... 5 in.
Swing Over Saddle...................................................................................................................................... 5 in.
Maximum Tool Bit Size............................................................................................................................. 1/2 in.
Compound Travel.................................................................................................................................. 1-7/8 in.
Carriage Travel.......................................................................................................................................... 16 in.
Cross Slide Travel................................................................................................................................. 4-1/4 in.
Model G4000
-4-
The information contained herein is deemed accurate as of 12/2/2015 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased.
PAGE 1 OF 3
Model G4000 (Mfg. Since 8/09)
Headstock Info
Spindle Bore........................................................................................................................................... 0.78 in.
Spindle Size............................................................................................................................................. 39 mm
Spindle Taper............................................................................................................................................ MT#3
Spindle Threads......................................................................................................................................... 4 TPI
Number of Spindle Speeds............................................................................................................................... 6
Spindle Speeds....................................................................................................................... 130 – 2000 RPM
Spindle Type....................................................................................................................................... Threaded
Spindle Bearings......................................................................................................................... Tapered Roller
Tailstock Info
Tailstock Quill Travel........................................................................................................................... 1-9/16 in.
Tailstock Taper.......................................................................................................................................... MT#2
Tailstock Barrel Diameter..................................................................................................................... 1.002 in.
Threading Info
Number of Longitudinal Feeds....................................................................................................................... 18
Range of Longitudinal Feeds........................................................................................ 0.0047 – 0.0120 in./rev.
Number of Inch Threads................................................................................................................................. 27
Range of Inch Threads...................................................................................................................... 8 – 56 TPI
Number of Metric Threads.............................................................................................................................. 11
Range of Metric Threads............................................................................................................... 0.5 – 3.0 mm
Dimensions
Bed Width.............................................................................................................................................. 4-1/2 in.
Carriage Leadscrew Diameter................................................................................................................ 9/16 in.
Leadscrew TPI......................................................................................................................................... 16 TPI
Carriage Leadscrew Length....................................................................................................................... 25 in.
Steady Rest Capacity............................................................................................................................ 1-3/4 in.
Follow Rest Capacity............................................................................................................................. 1-3/4 in.
Faceplate Size....................................................................................................................................... 7-1/2 in.
Other
Optional Stand......................................................................................................................................... G4001
Construction
Base..................................................................................................................................................... Cast Iron
Headstock............................................................................................................................................ Cast Iron
End Gears............................................................................................................................................ Cast Iron
Bed.................................................................................................. Hardened and Precision-Ground Cast Iron
Body..................................................................................................................................................... Cast Iron
Paint Type/Finish...................................................................................................................................... Epoxy
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time .............................................................................................................. 1 Hour
Serial Number Location .............................................................................................................. Bed Back, Right End
ISO 9001 Factory .................................................................................................................................................... No
Certified by a Nationally Recognized Testing Laboratory (NRTL) .......................................................................... No
Features:
Chip and Splash Guard Included
Hardened and Ground Cast-Iron Bed
Quick Change Gearbox Offers up to 27 Standard and 11 Metric Threads, from 8 to 56 Threads Per Inch
Threading Dial
Model G4000
The information contained herein is deemed accurate as of 12/2/2015 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased.
Model G4000 (Mfg. Since 8/09)
PAGE 2 OF 3
-5-
SECTION 1: SAFETY
For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
NOTICE
This symbol is used to alert the user to useful information about
proper operation of the machine.
Safety Instructions for Machinery
OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained operators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, disconnect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make workshop kid proof!
DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machinery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
-6-
ELECTRICAL EQUIPMENT INJURY RISKS. You
can be shocked, burned, or killed by touching live
electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.
DISCONNECT POWER FIRST. Always disconnect machine from power supply BEFORE making
adjustments, changing tooling, or servicing machine.
This prevents an injury risk from unintended startup
or contact with live electrical components.
EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are not approved safety glasses.
Model G4000 (Mfg. Since 8/09)
­
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
accidental­slips,­which­could­cause­loss­of­workpiece­control.
hAzARdOus dusT. Dust­ created­ while­ using­
machinery­ may­ cause­ cancer,­ birth­ defects,­ or­
long-term­ respiratory­ damage.­ Be­ aware­ of­ dust­
hazards­associated­with­each­workpiece­material,­
and­always­wear­a­NIOSH-approved­respirator­to­
reduce­your­risk.
hEARING PROTECTION.­ Always­ wear­ hearing­ protection­ when­ operating­ or­ observing­ loud­
machinery.­ Extended­ exposure­ to­ this­ noise­
without­ hearing­ protection­ can­ cause­ permanent­
hearing­loss.
REMOVE AdJusTING TOOLs.­ Tools­ left­ on­
machinery­ can­ become­ dangerous­ projectiles­
upon­startup.­Never­leave­chuck­keys,­wrenches,­
or­ any­ other­ tools­ on­ machine.­ Always­ verify­
removal­before­starting!
INTENdEd usAGE.­ Only­ use­ machine­ for­ its­
intended­purpose­and­never­make­modifications­
not­ approved­ by­ Grizzly.­ Modifying­ machine­ or­
using­ it­ differently­ than­ intended­ may­ result­ in­
malfunction­or­mechanical­failure­that­can­lead­to­
serious­personal­injury­or­death!
AWKWARd POsITIONs.­ Keep­ proper­ footing­
and­balance­at­all­times­when­operating­machine.­
Do­not­overreach!­Avoid­awkward­hand­positions­
that­ make­ workpiece­ control­ difficult­ or­ increase­
the­risk­of­accidental­injury.
FORCING MAChINERY.­Do­not­force­machine.­
It­ will­ do­ the­ job­ safer­ and­ better­ at­ the­ rate­ for­
which­it­was­designed.
NEVER sTANd ON MAChINE.­ Serious­ injury­
may­ occur­ if­ machine­ is­ tipped­ or­ if­ the­ cutting­
tool­is­unintentionally­contacted.­
sTABLE MAChINE. Unexpected­movement­during­ operation­ greatly­ increases­ risk­ of­ injury­ or­
loss­of­control.­Before­starting,­verify­machine­is­
stable­and­mobile­base­(if­used)­is­locked.
usE RECOMMENdEd ACCEssORIEs.­Consult­
this­owner’s­manual­or­the­manufacturer­for­recommended­ accessories.­ Using­ improper­ accessories­will­increase­the­risk­of­serious­injury.
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
while­unattended.­
MAINTAIN WITh CARE.­Follow­all­maintenance­
instructions­ and­ lubrication­ schedules­ to­ keep­
machine­ in­ good­ working­ condition.­ A­ machine­
that­ is­ improperly­ maintained­ could­ malfunction,­­
leading­to­serious­personal­injury­or­death.­
ChECK dAMAGEd PARTs.­ Regularly­ inspect­
machine­ for­ any­ condition­ that­ may­ affect­ safe­
operation.­Immediately­repair­or­replace­damaged­
or­mis-adjusted­parts­before­operating­machine.
ChILdREN & BYsTANdERs. Keep­children­and­
bystanders­at­a­safe­distance­from­the­work­area.
Stop­using­machine­if­they­become­a­distraction.
MAINTAIN POWER CORds. When­ disconnecting­ cord-connected­ machines­ from­ power,­ grab­
and­pull­the­plug—NOT­the­cord.­Pulling­the­cord­
may­ damage­ the­ wires­ inside.­ Do­ not­ handle­­
cord/plug­with­wet­hands.­Avoid­cord­damage­by­
keeping­it­away­from­heated­surfaces,­high­traffic­
areas,­harsh­chemicals,­and­wet/damp­locations.
GuARds & COVERs.­Guards­and­covers­reduce­
accidental­ contact­ with­ moving­ parts­ or­ flying­
debris.­ Make­ sure­ they­ are­ properly­ installed,­
undamaged,­and­working­correctly.
EXPERIENCING dIFFICuLTIEs. If­ at­ any­ time­
you­experience­difficulties­performing­the­intended­operation,­stop­using­the­machine!­Contact­our­
Technical­Support­at­(570)­546-9663.
Model G4000 (Mfg. Since 8/09)
-7-
Additional Safety for Metal Lathes
Serious injury or death can occur from getting entangled in, crushed between, or struck by
rotating parts on a lathe! Unsecured tools or workpieces that fly loose from rotating objects
can also strike nearby operators with deadly force. To minimize the risk of getting hurt or killed,
anyone operating this machine MUST completely heed the hazards and warnings below.
CLOTHING, JEWELRY & LONG HAIR. Tie back
long hair, remove jewelry, and do not wear loose
clothing or gloves. These can easily get caught on
rotating parts and pull you into lathe.
SECURE WORKPIECE. An improperly secured
workpiece can fly off spindle with deadly force.
Make sure workpiece is properly secured before
starting the lathe.
ROTATING PARTS. Always keep hands and body
at a safe distance from rotating parts—especially
those with projecting surfaces. Never hold anything against rotating workpiece, such as emery
cloth, that can pull you into lathe.
CHUCKS. Chucks can be heavy and difficult to
hold. During installation and removal, protect your
hands and precision bed ways by using a chuck
cradle or piece of plywood over the bed ways. Use
lifting equipment, as necessary, for large chucks.
GUARDING. Guards and covers protect against
entanglement or flying objects. Always ensure they
are properly installed while machine is running.
STOPPING SPINDLE. Always allow spindle to
completely stop on its own, or use a brake, if
provided. Never put hands or another object on a
spinning workpiece to make it stop faster.
ADJUSTMENT TOOLS. Remove all chuck keys,
wrenches, and adjustment tools before turning
lathe ON. A tool left on the lathe can become a
deadly projectile when spindle is started.
SAFE CLEARANCES. Before starting spindle,
verify workpiece has adequate clearance by handrotating it through its entire range of motion.
NEW SETUPS. Test each new setup by starting
spindle rotation at the lowest speed and standing
to the side of the lathe until workpiece reaches full
speed and you can verify safe rotation.
SPINDLE SPEEDS. Using spindle speeds that are
too fast for the workpiece or clamping equipment
can cause rotating parts to come loose and strike
nearby people with deadly force. Always use slow
spindle speeds with large or non-concentric workpieces. Never exceed rated RPM of the chuck.
LONG STOCK SAFETY. Long stock can whip
violently if not properly supported. Always support
any stock that extends from the chuck/headstock
more than three times its own diameter.
CLEARING CHIPS. Metal chips can be razor
sharp. Avoid clearing them by hand or with a rag.
Use a brush or vacuum instead.
-8-
CRASHING. A serious explosion of metal parts
can occur if cutting tool or other lathe component
hits rotating chuck or a projecting part of workpiece. Resulting metal fragments can strike nearby
people and lathe will be seriously damaged. To
reduce risk of crashing, ALWAYS release automatic feeds after use, NEVER leave lathe unattended,
and CHECK all clearances before starting lathe.
COOLANT SAFETY. Coolant can become very
toxic through prolonged use and aging. To minimize toxicity, change coolant regularly. When
using, position nozzle properly to avoid splashing
operator or causing a slipping hazard on floor.
TOOL SELECTION. Cutting with incorrect or dull
tooling increases risk of injury from broken or dislodged components, or as a result of extra force
required for operation. Always use sharp tooling
that is right for the job.
SANDING/POLISHING. To reduce risk of entanglement, never wrap emery cloth around rotating
workpiece. Instead, use emery cloth with the aid
of a tool or backing board.
MEASURING WORKPIECE. To reduce risk of
entanglement, never measure rotating workpieces.
Model G4000 (Mfg. Since 8/09)
SECTION 2: POWER SUPPLY
Availability
Before installing the machine, consider the availability and proximity of the required power supply
circuit. If an existing circuit does not meet the
requirements for this machine, a new circuit must
be installed. To minimize the risk of electrocution,
fire, or equipment damage, installation work and
electrical wiring must be done by an electrican or
qualified service personnel in accordance with all
applicable codes and standards.
Electrocution, fire, or
equipment damage may
occur if machine is not
correctly grounded and
connected to the power
supply.
Full-Load Current Rating
The full-load current rating is the amperage a
machine draws at 100% of the rated output power.
On machines with multiple motors, this is the
amperage drawn by the largest motor or sum of all
motors and electrical devices that might operate
at one time during normal operations.
Full-Load Current Rating at 110V.....11.6 Amps
The full-load current is not the maximum amount
of amps that the machine will draw. If the machine
is overloaded, it will draw additional amps beyond
the full-load rating.
If the machine is overloaded for a sufficient length
of time, damage, overheating, or fire may result—
especially if connected to an undersized circuit.
To reduce the risk of these hazards, avoid overloading the machine during operation and make
sure it is connected to a power supply circuit that
meets the specified circuit requirements.
Model G4000 (Mfg. Since 8/09)
Serious injury could occur if you connect
machine to power before completing setup
process. DO NOT connect to power until
instructed later in this manual.
110V Circuit Requirements
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
Nominal Voltage..................... 110V, 115V, 120V
Cycle...........................................................60 Hz
Phase............................................ Single-Phase
Power Supply Circuit.......................... 15 Amps
A power supply circuit includes all electrical
equipment between the breaker box or fuse panel
in the building and the machine. The power supply circuit used for this machine must be sized to
safely handle the full-load current drawn from the
machine for an extended period of time. (If this
machine is connected to a circuit protected by
fuses, use a time delay fuse marked D.)
For your own safety and protection of
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
Note: Circuit requirements in this manual apply to
a dedicated circuit—where only one machine will
be running on the circuit at a time. If machine will
be connected to a shared circuit where multiple
machines may be running at the same time, consult an electrician or qualified service personnel to
ensure circuit is properly sized for safe operation.
-9-
Grounding & Plug Requirements
This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.
This machine is equipped with a power cord that
has an equipment-grounding wire and a grounding
plug. Only insert plug into a matching receptacle
(outlet) that is properly installed and grounded in
accordance with all local codes and ordinances.
DO NOT modify the provided plug!
GROUNDED
5-15 RECEPTACLE
Grounding Prong
5-15 PLUG
Neutral Hot
Figure 2. Typical 5-15 plug and receptacle.
Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without yellow
stripes) is the equipment-grounding wire. If repair
or replacement of the power cord or plug is necessary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.
Check with a qualified electrician or service personnel if you do not understand these grounding
requirements, or if you are in doubt about whether
the tool is properly grounded. If you ever notice
that a cord or plug is damaged or worn, disconnect it from power, and immediately replace it with
a new one.
Extension Cords
We do not recommend using an extension cord
with this machine. If you must use an extension
cord, only use it if absolutely necessary and only
on a temporary basis.
Extension cords cause voltage drop, which can
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).
Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:
Minimum Gauge Size............................14 AWG
Maximum Length (Shorter is Better).......50 ft.
SHOCK HAZARD!
Two-prong outlets do not meet the grounding
requirements for this machine. Do not modify
or use an adapter on the plug provided—if
it will not fit the outlet, have a qualified
electrician install the proper outlet with a
verified ground.
-10-
Model G4000 (Mfg. Since 8/09)
SECTION 3: SETUP
Needed for Setup
This machine presents
serious injury hazards
to untrained users. Read
through this entire manual to become familiar with
the controls and operations before starting the
machine!
Wear safety glasses during
the entire setup process!
HEAVY LIFT!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
The following are needed to complete the setup
process, but are not included with your machine:
DescriptionQty
• Wrenches 13, 16mm.......................... 1 Each
• Precision Level............................................ 1
• Assistants.................................... As Needed
• Safety Glasses......................... 1 Per Person
• Lifting Straps............................................... 2
• Hoist or Forklift............................................ 1
• Shop Rags................................... As Needed
• Cleaner/Degreaser...................... As Needed
• Mounting Hardware (Page 15).... As Needed
• Tools for Mounting....................... As Needed
Unpacking
Your machine was carefully packaged for safe
transportation. Remove the packaging materials
from around your machine and inspect it. If you
discover the machine is damaged, please immediately call us at (570) 546-9663 for advice.
Save the containers and all packing materials for
possible inspection by the carrier or its agent.
Otherwise, filing a freight claim can be difficult.
When you are completely satisfied with the condition of your shipment, inventory the contents.
SUFFOCATION HAZARD!
Keep children and pets away
from plastic bags or packing
materials shipped with this
machine. Discard immediately.
Model G4000 (Mfg. Since 8/09)
-11-
Inventory
B
A
C
The following is a list of items shipped with your
machine. Before beginning setup, lay these items
out and inventory them.
H
If any non-proprietary parts are missing (e.g. a
nut or a washer), we will gladly replace them; or
for the sake of expediency, replacements can be
obtained at your local hardware store.
Inventory: (Figures 3–4)
Qty
A. Faceplate 7 1⁄ 2"............................................. 1
B. 4-Jaw Chuck 7 1⁄4"........................................ 1
C. 3-Jaw Chuck 4"........................................... 1
D. Reverse Jaws for 3-Jaw Chuck.............1 Set
E. C-Type Tool Holder...................................... 1
F. Dead Center MT#2...................................... 1
G. Dead Center MT#3...................................... 1
H. Live Center MT#2........................................ 1
I. Change Gears:
—30T Gears................................................ 2
—36T Gear.................................................. 1
—42T Gear.................................................. 1
—45T Gear.................................................. 1
—80T Gears................................................ 2
J. Tool Box...................................................... 1
K. Standard & Phillips Screwdrivers....... 1 Each
L. Combo Wrenches 8/10, 12/14mm...... 1 Each
M. Hex Wrenches 1.5, 2, 4, 5, 6mm........ 1 Each
N. Oil Bottle...................................................... 1
O. Belt Tension Lever Knob............................. 1
P. Chuck Bars.................................................. 2
Q. 3-Jaw Chuck Key........................................ 1
R. 4-Jaw Chuck Key........................................ 1
S. Hardware (Not Shown):
—Hex Bolts M10-1.5 x 30............................ 2
—Hex Bolt M8-1.25 x 30 (C-Type Holder)... 1
—Hex Nuts M8-1.25 (C-Type Holder).......... 1
—Pin 8 x 20mm (C-Type Holder)................ 1
—Phillips Head Screws M8-1.25 x 16......... 4
—Hex Nuts M8-1.25.................................... 3
—High Hex Nut M8-1.25............................. 1
—Flat Washers 8mm................................... 9
—Compression Spring 10 x 40mm............. 1
-12-
F
G
I
D
E
Figure 3. Model G4000 inventory 1.
J
K
R
P
L
Q
O
N
M
Figure 4. Model G4000 inventory 2.
NOTICE
If you cannot find an item on this list, carefully check around/inside the machine and
packaging materials. Often, these items get
lost in packaging materials while unpacking or they are pre-installed at the factory.
Model G4000 (Mfg. Since 8/09)
Cleanup
Site Considerations
The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.
Gasoline or products
with low flash points can
Workbench Load
explode or cause fire if
Refer to the Machineused
Data to
Sheet
for the
weight
clean
machinand footprint specifications
of cleaning
your machine.
ery. Avoid
with
Some workbenches may
additional reintheserequire
products.
forcement to support both the machine and materials.
Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.
There are many ways to remove this rust preventative, but the following steps work well in a wide
variety of situations. Always follow the manufacturer’s instructions with any cleaning product you
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.
Before cleaning, gather the following:
•
Disposable Rags
•
Cleaner/degreaser (WD•40 works well)
•
Safety glasses & disposable gloves
•
Plastic paint scraper (optional)
Basic steps for removing rust preventative:
1.
Put on safety glasses.
2.
Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
for 5–10 minutes.
3.
Wipe off the surfaces. If your cleaner/degreaser is effective, the rust preventative will wipe
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
off the rest with the rag.
4.
Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a quality
metal protectant to prevent rust.
Model G4000 (Mfg. Since 8/09)
Placement Location
Many
cleaning solvents
are
toxic
if needs,
concentratConsider existing and anticipated
size of
ed
amounts
are
material to be processed through each inhaled.
machine,
Onlystands,
work inwork
a well-ventiand space for auxiliary
tables or
lated
area.
other machinery when
establishing
a location for
your new machine. See Figure 5 for the minimum
working clearances.
NOTICE
Avoid chlorine-based solvents, such as
acetone or brake parts cleaner, that may
damage painted surfaces. Test all cleaners
in an inconspicuous area before using to
24" sure they will not damage paint.
make
123⁄4"
533⁄4"
Figure 5. Minimum working clearances.
Children and visitors may be
seriously injured if unsupervised around this machine.
Lock entrances to the shop
or disable start switch or
power connection to prevent
unsupervised use.
-13-
Moving & Placing
Lathe
The Model G4000 is a
heavy machine. Serious
personal injury may occur
if safe moving methods
are not used. To be safe,
get assistance, use safe
lifting methods, and use
power equipment that
is rated for at least 500
lbs. to move the shipping
crate and machine.
4. Wrap the lifting straps around the back of the
bedway and up through the center cavities
to avoid bending the leadscrew or contacting
the carriage controls when lifting, as shown in
Figure 6.
Note: To help balance the load, remove the
tailstock and steady rest from the machine,
then position the right lifting strap and the
carriage as far to the right as possible (refer
Carriage Controls on Page 19 for detailed
instructions).
Make sure the lifting straps do not put any
strain on the leadscrew or carriage controls.
To ensure the lathe does not unexpectedly move
during operation, you must securely mount the
machine to a flat and stable surface that can support the weight. To do this, use the chip pan as a
template to drill the holes (refer to Mounting on
Page 15).
To move and place your lathe:
1. Remove the crate top, then remove the chip
pan that is attached to it.
Figure 6. Lifting straps properly positioned.
2. Remove the sides of the crate, the toolbox,
and the faceplate/4-jaw chuck assembly from
the shipping pallet, then unbolt the lathe from
the pallet.
5. Attach the lifting straps to the power lifting
equipment, have an assistant steady the load,
then lift it just enough to clear any obstacles
and move it to its mounting position.
3. Position the chip pan on the prepared surface, use it as a template to mark the mounting hole locations, then drill the holes.
6. Properly mount the lathe as instructed in the
Mounting subsection on Page 15.
-14-
Model G4000 (Mfg. Since 8/09)
Mounting
The chip pan and the base of the lathe have
holes that allow the machine to be mounted to
a workbench. You MUST mount your machine
to a workbench to prevent it from unexpectedly
moving during operation, which could lead to
personal injury or property damage.
The strongest of the two mounting methods
illustrated in this section is the "Through Mount"
method. In this method, holes are drilled all
the way through the workbench, and hex bolts,
washers, and hex nuts are used to secure the
lathe and chip pan to the workbench, as illustrated
in Figure 7.
Bolt
Follow these guidelines when mounting your
lathe to ensure safe and accurate cutting
results:
Flat Washer
•
•
Make sure that the workbench can adequately support the weight of the machine and
materials and that it will not move or vibrate
during operation.
Use 1⁄2" bolts, which is the largest diameter
fastener that the holes in the lathe and chip
pan will accommodate. When using hex nuts,
apply thread-locking fluid to ensure they do
not come loose.
•
Use a quality silicone sealant between the
lathe and the chip pan to prevent coolant and
other fluids leaking through onto the workbench or floor.
•
To ensure accurate results from your lathe,
use a precision level to make the lathe bedway
exactly level from side-to-side and front-toback. If necessary, use shims between the
lathe and chip pan.
Note: Re-check the bedway after 24 hours,
after two weeks, then annually to make sure
it remains level.
Silicone
Sealant
Lathe
Chip Pan
Workbench
Flat Washer
Lock Washer
Hex Nut
Figure 7. Example of a through mount setup.
Another option for mounting is a "Direct Mount"
where the machine is simply secured to the workbench with a lag screw, as illustrated in Figure 8.
Lag Bolt
Flat Washer
Lathe
Silicone
Sealant
Chip Pan
Workbench
Unexpected movement of the lathe during
operation could draw the operator's hands or
body into the moving parts of the machine.
Make sure this machine is properly secured
to a stable workbench or stand before connecting it to power.
Model G4000 (Mfg. Since 8/09)
Figure 8. Example of a direct mount setup.
-15-
Belt Tensioning
Lever Knob
4. If a chuck is mounted, make sure it is firmly
secured to the spindle and that it can rotate
without any interference (refer to Chuck/
Faceplate Mounting & Removal on Page
20 for detailed instructions).
Thread the knob onto the belt tensioning lever, as
shown in Figure 9.
5. Make sure the feed lever on the front of the
carriage is in the disengaged (down) position
and the half-nut lever is in the disengaged
(up) position, as shown in Figure 10.
Belt Tensioning
Lever Knob
Figure 9. Belt tensioning lever knob.
Test Run
Test run your machine to make sure it runs properly.
If, during the test run, you cannot easily locate
the source of an unusual noise or vibration, stop
using the machine immediately, then review the
Troubleshooting on Page 50.
If you still cannot remedy a problem, contact our
Tech Support at (570) 546-9663 for assistance.
To test run the machine:
1. Make sure you have read the safety instructions at the beginning of the manual and that
the machine is set up properly.
2. Your lathe must be fully lubricated before you
start it for the first time. Perform all lubrication
procedures as instructed in the Lubrication
subsection on Page 47.
Note: With the feed and half-nut levers in
these positions, the carriage will not move
when the lathe is turned ON and the leadscrew
rotates.
Feed Lever
(Down)
Half-Nut Lever
(Up)
Figure 10. The feed and half-nut levers in the
disengaged positions.
6. Make sure the spindle switch on the top of
the headstock is in the STOP position, then
connect the machine to power.
7. Turn the spindle switch to the FWD position,
then listen to and watch for abnormal noises
or actions. The machine should run smoothly
with little or no vibration or rubbing noises.
—Strange or unusual noises should be investigated and corrected before operating the
machine further. Always disconnect the
machine from power when investigating or
correcting potential problems.
3. Make sure all tools and objects used during
setup are cleared away from the machine.
-16-
Model G4000 (Mfg. Since 8/09)
8. Make sure the chuck or spindle is rotating in
a counterclockwise direction (the top of the
chuck or spindle should be moving toward
the operator).
—If the chuck or spindle is not rotating in a
counterclockwise direction, move the spindle switch to the STOP position, disconnect the machine from power, then check
the motor and spindle switch wiring (refer
to the Wiring Diagram on Page 55). If you
still cannot remedy the problem, contact
our Tech Support at (570) 546-9663 for
assistance.
9. Turn the lathe OFF by moving the spindle
switch to the STOP position.
Spindle Bearing
Break-In
5. Turn the spindle switch to the STOP position
and wait for the spindle to come to a complete stop, then turn the switch to the REV
position and let the lathe run for another 10
minutes.
6. Turn the spindle switch to the STOP position
and wait for the spindle to come to a complete stop.
7. Disconnect the lathe from power, then repeat
Steps 4–6 for the spindle speeds of 600 RPM
and 2000 RPM.
8. Turn the lathe OFF.
9. Perform all lubrication procedures as instructed in the Lubrication subsection on Page
47.
Recommended
Adjustments
NOTICE
Successfully complete all of the spindle
bearing break-in steps to avoid rapid deterioration of the spindle bearings and other
related parts.
To perform the spindle bearing break-in:
1. DISCONNECT LATHE FROM POWER!
2. Make sure that you have successfully completed all of the Test Run steps in the previous procedure.
3. Configure the spindle belt for 120 RPM (refer
to Spindle Speed on Page 32 for detailed
instructions).
4. Connect the lathe to power, turn the spindle
switch to the FWD position, then let the lathe
run for 10 minutes.
Model G4000 (Mfg. Since 8/09)
The Spindle Bearing Break-In procedure
is complete and your lathe is ready for
operation.
For your convenience, the adjustments listed
below have been performed at the factory.
However, because of the many variables involved
with shipping, we recommend that you at least
verify the following adjustments to ensure the best
possible results from your new machine.
Step-by-step instructions for these adjustments
can be found in the SERVICE section starting on
Page 50.
Factory adjustments that should be verified:
•
Tailstock alignment (Page 27).
•
Gib adjustment (Page 52).
-17-
SECTION 4: OPERATIONS
Basic Controls
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Refer to Figures 11–13 and the following descriptions to become familiar with the basic controls
and components of your lathe.
Headstock
Eye injuries, respiratory problems, or hearing loss can occur while operating this
tool. Wear personal protective equipment to
reduce your risk from these hazards.
D
C
B
A
G
E
F
Keep hair, clothing, and
jewelry away from moving parts at all times.
Entanglement can result
in death, amputation, or
severe crushing injuries!
If you are not experienced with this type
of machine, WE STRONGLY RECOMMEND
that you seek additional training outside of
this manual. Read books/magazines or get
formal training before beginning any projects. Regardless of the content in this section, Grizzly Industrial will not be held liable
for accidents caused by lack of training.
Figure 11. Headstock controls and components.
A. Thread Dial Chart: Shows when to engage
the half-nut for inch threading.
B. Configuration Chart: Provides belt, gear,
and lever positions for spindle speeds, power
feed rates, and threading operations.
C. Belt Tensioning Lever: Releases or applies
tension to the spindle belt.
D. Spindle Switch: Starts, reverses, and stops
spindle rotation.
E.Spindle: Holds a chuck, faceplate or center
for workpiece mounting.
F. Feed Rate Lever: Engages the gearing that
partly control the carriage feed rate.
G. Change Gear Cover: Protects the operator
from the change gears, belts, and pulleys that
transfer power from the motor to the spindle
and leadscrew.
-18-
Model G4000 (Mfg. Since 8/09)
Carriage
NOTICE
B
A
Engaging the feed lever and the half-nut
at the same time will damage the carriage gearing and longitudinal leadscrew.
NEVER attempt to force the feed lever in the
engaged (up) position and half-nut lever in
the engaged (down) position at the same
time.
C
D
E
J
I
F
H
G
Figure 12. Carriage controls and components.
A. Steady Rest: Provides support for long, slender stock and can be positioned anywhere on
the bedway.
B. Follow Rest: Follows the movement of the
carriage and provides support for long, slender stock to prevent the workpiece from flexing due to cutting tool pressure.
I. Carriage Handwheel: Moves the carriage
and the mounted tooling left-or-right along
the bedway.
J. Cross Slide Handwheel: Moves the cross
slide and mounted tooling in-or-out to the
bedway.
Tailstock
B
A
C
C. 4-Way Tool Post: Holds four different cutting tools that can be indexed (rotated) to the
workpiece as needed.
D. Compound Slide Handwheel: Moves the
compound slide and mounted tooling toward
or away from the workpiece at the angle
selected.
E. Compound Slide Angle Scale: Displays the
angle of the compound slide and mounted
tooling in relation to the spindle center line.
F. Thread Dial: When engaged with the
leadscrew, shows when to engage the halfnut during certain inch threading operations.
G. Half-Nut Lever: Opens and closes the halfnut onto the longitudinal leadscrew, which
engages the powered carriage feed for
threading.
H. Feed Lever: Engages the carriage gears with
the longitudinal leadscrew for non-threading
powered carriage movement.
Model G4000 (Mfg. Since 8/09)
D
E
Figure 13. Tailstock controls and components.
A.Quill: Holds a tapered center or tool, and
moves toward or away from the spindle with
the use of the handwheel.
B. Quill Lock: Locks the quill and installed tool
in place.
C. Quill Handwheel: Moves the quill in and out
of the tailstock casting.
D. Offset Scale: Indicates the tailstock offset
from the lathe center line.
E. Tailstock Lock Nut: Secures the tailstock in
place on the bedway.
-19-
Chuck/Faceplate
Mounting & Removal
Your Model G4000 lathe includes a 4" 3-jaw
chuck, a 7 1⁄4" 4-jaw chuck, and a 7 1⁄ 2" faceplate.
The chucks and faceplate mount to the threaded
spindle in the same manner.
4. Insert the longer chuck removal bar into the
spindle indent to hold the spindle still, then
thread the chuck or faceplate onto the spindle
and hand-tighten it, as shown in Figure 14.
Note: Overtightening the chuck or faceplate
onto the spindle will make removal difficult
and could damage the threads.
Before installing or storing the chucks or faceplate, clean away debris and grime from their
surfaces and threaded bores, then apply a protective coat of a product like Primrose Armor Plate to
avoid rust and corrosion (see ACCESSORIES on
Page 43).
Qty
Tools Needed
Hex Wrench 3mm............................................... 1
Chuck Bars......................................................... 2
Plywood 3 ⁄4" (for bedway).................................... 1
Mounting a Chuck or Faceplate
1. DISCONNECT LATHE FROM POWER!
2. Lay a piece of plywood on the bedway underneath the spindle to protect the precision
ground surfaces.
3. Clean away any debris and grime from the
mating threads of the spindle and chuck
or faceplate, then apply a thin coat of light
machine oil to the threads.
Chuck Bar
Set Screw
Figure 14. Mounting the 3-jaw chuck.
5. Tighten the set screw shown in Figure 14 to
prevent the chuck or faceplate from coming
loose when the spindle is rotating in reverse.
6. Remove the plywood from the bedway and
any tools used before starting the lathe.
Make sure the chuck/faceplate is firmly secured on
the spindle and remove
the chuck tools before
operation. Objects thrown
from the lathe could cause
serious personal injury or
death to the operator or
bystanders.
PINCH HAZARD! Protect your hands and
the precision ground bedways with plywood
when removing the lathe chuck! The heavy
weight of a falling chuck can cause serious
injury or damage the bedway.
-20-
Model G4000 (Mfg. Since 8/09)
Removing a Chuck or Faceplate
1. DISCONNECT LATHE FROM POWER!
2. Lay a piece of plywood on the bedway underneath the spindle to protect the precision
ground surfaces.
3. Loosen both set screws, then insert one
chuck bar into the spindle indent to hold the
spindle still (see Figure 15).
Note: If removing a chuck, insert the remaining chuck bar into a scroll keyway, as shown
in Figure 15.
Chuck
Bars
3-Jaw Chuck
The 3-jaw chuck included with your lathe is a
scrolling-type chuck, which means all three jaws
move equally when the chuck key is turned.
This jaw configuration is used to hold concentric
workpieces that are centered with equal pressure
from all three jaws.
There is also a reverse set of jaws included with
your lathe that accommodate additional workpiece
configurations (see Figure 16 for examples). Both
sets of jaws can hold a workpiece on the inside
or outside surface of the jaw. No matter how you
configure the jaws, make sure the workpiece is
firmly secured to the chuck.
Mount or remove the 3-jaw chuck on the spindle,
according the instructions beginning on Page 20.
Set Screw
Clamping on an Outside Diameter
Figure 15. Chuck bar positioning.
4. Rotate the chuck or faceplate counterclockwise to unthread it from the spindle, then
thoroughly clean and lubricate it.
Clamping in an Inside Diameter
Figure 16. Examples of workpiece holding
configurations.
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.
Qty
Tools Needed
3-Jaw Chuck Key............................................... 1
Mounting Workpiece
1. DISCONNECT LATHE FROM POWER!
2. Lay a piece of plywood on the bedway underneath the spindle to protect the precision
ground surfaces.
3. Insert the chuck key into a scroll keyway and
rotate it counterclockwise to open the jaws
until the workpiece sits flat against the chuck
face, evenly on the jaw steps, or fits into the
chuck hole and through the spindle bore.
Model G4000 (Mfg. Since 8/09)
-21-
4. Close the jaws until they make light contact
with the workpiece, as shown in Figure 17.
Installing Jaws
1. Place the chuck on a flat, stable surface.
2. Examine the sides of the jaws—each is
stamped with a number 1 through 3. Examine
the jaw guides of the chuck—each is stamped
with a corresponding number (see Figure 18)
Note: The jaws and jaw guides are machined
to match and each jaw must be installed in its
corresponding jaw guide.
Figure 17. Example of a concentric shaft
secured in the 3-jaw chuck.
5. Turn the chuck by hand to make sure the
workpiece is evenly held by all three jaws and
is centered on the chuck.
Jaw Guide 1
Jaw 1
—If the workpiece is not centered, loosen
the jaws and adjust the workpiece, then
re-tighten the jaws and repeat Step 5.
—If the workpiece is centered, fully tighten
the jaws.
Removing Jaws
1. DISCONNECT LATHE FROM POWER!
2. Place a piece of plywood on the bedway to
protect it, then remove the chuck from the
lathe.
3. Lay the chuck on a flat, stable surface, then
insert the chuck key into a scroll keyway and
rotate it counterclockwise to back the jaws all
the way out of the jaw guides.
Figure 18. Jaw and jaw guide stamped with
corresponding numbers.
3. Insert the chuck key into a scroll keyway
and rotate it until you see the beginning of
the scroll gear's lead thread come into view
through the #1 jaw guide, then back if off
slightly until it disappears (see Figure 19).
Lead Thread
4. Thoroughly clean the jaws with shop rags
and mineral spirits, then apply a thin coat of
an anti-rust protective lubricant before storing
them in a protected location free from moisture and abrasives.
Figure 19. Installing jaw #1.
-22-
Model G4000 (Mfg. Since 8/09)
4. Slide the #1 jaw into the #1 jaw guide and
hold it firmly against the scroll gear threads,
then rotate the chuck key clockwise approximately one turn until the lead thread engages
with the jaw.
Note: Tug on the jaw to make sure it is
engaged with the scroll gear thread.
5. Repeat Steps 3–4 for jaws #2 and #3 in
sequence.
6. Rotate the chuck key clockwise to bring the
jaws together in the center of the chuck.
—If installed correctly, the jaws will converge
evenly at the center of the chuck.
Mount or remove the 4-jaw chuck according the
instructions beginning on Page 20.
Tools Needed
Qty
Hex Wrench 3mm............................................... 1
Wrench 19mm.................................................... 1
4-Jaw Chuck Key............................................... 1
Mounting Workpiece
1. DISCONNECT LATHE FROM POWER!
2. Lay a piece of plywood on the bedway underneath the spindle to protect the precision
ground surfaces.
3. Loosen the hex nut on the back of the chuck
for each jaw (see Figure 21).
—If the jaws do not come together evenly,
remove them, make sure the numbers of
the jaws and the jaw guides match, then
properly re-install them.
4-Jaw Chuck
Hex Nut
The 4-jaw chuck included with your lathe features
independently adjustable, hardened steel jaws.
Each jaw can be removed from the chuck body
and reversed for a wide range of work holding
configurations. The 4-jaw chuck is typically used
to hold non-concentric workpieces (see Figure 20
for an example).
Scroll Keyway
Figure 21. 4-jaw chuck components.
4. With assistance to support the workpiece,
use the chuck key to open each jaw until you
can position the workpiece flat against the
chuck face or evenly on the jaw steps.
Figure 20. Example of a non-concentric
workpiece held in a 4-jaw chuck.
Model G4000 (Mfg. Since 8/09)
-23-
5. Tighten each jaw in small increments in
an opposing sequence, as illustrated in
Figure 22, until the workpiece is firmly secure
in the desired position.
3
1
Always use a low spindle speed when
machining non-concentric or off-center
workpieces to reduce the risk of ejecting the
workpiece from the holding device at a high
rate of speed. Failure to heed this warning
could lead to serious personal injury, death
or property damage.
x
Faceplate
2
4
Figure 22. Opposing tightening sequence for the
4-jaw chuck.
6. Make fine adjustments to the workpiece position by using a test indicator mounted on a
magnetic base and adjusting the jaws until
the workpiece is precisely aligned for your
operation (see Figure 23 for an example).
The faceplate is used to hold non-concentric and
off-center parts. Although more versatile in mounting these types of workpieces than the 4-jaw
chuck, it requires more work to properly clamp the
workpiece (see Figure 24 for an example).
Clamps
Note: Refer to ACCESSORIES on Page 43
for test indicator options from Grizzly.
Magnetic
Base
Figure 24. Example of a non-concentric
workpiece clamped to a faceplate.
NOTICE
Test
Indicator
Figure 23. Example of using a test indicator to
precisely align a non-concentric workpiece.
-24-
You must use a minimum of three independent clamping devices when using the
faceplate to hold a workpiece. Refer to
ACCESSORIES on Page 43 for clamping
options from Grizzly.
Model G4000 (Mfg. Since 8/09)
Centers
Your Model G4000 lathe includes three centers: 1)
an MT#2 live center, 2) an MT#3 dead center, and
3) an MT#2 dead center, as shown in Figure 25.
Live
Center
Dead
Centers
When mounting a long, slender workpiece that
extends more than 2 1⁄ 2 times its diameter beyond
the chuck jaws, use a center mounted in the
tailstock to support it.
Since the dead center does not rotate with the
workpiece when used in the tailstock, the tip of
the center must be lubricated with an anti-sieze
lubricant to avoid premature wear and maximize
smooth operation. Also, keep the spindle speeds
low to reduce the heat and wear from friction.
Install a lathe dog when using the MT#3 dead center in the spindle (see Figure 27 for an example).
Dead Center
Figure 25. The Model G4000 centers.
The spindle taper is an MT#3 and will only receive
the MT#3 dead center. The tailstock quill can
accommodate both the MT#2 live and dead center.
Dead Centers
The MT#2 dead center installed in the tailstock
quill is used to support stock that is too long to be
supported by the chuck alone (see Figure 26 for
an example).
Dead Center
Lathe Dog
Figure 27. Example of using a dead center with
a faceplate and lathe dog.
When using a center in the spindle to mount
a workpiece, the other end of the workpiece
MUST be supported by a center installed in
the tailstock quill to safely hold the workpiece
in place during operation. Otherwise, the
workpiece will leave the lathe when the
spindle rotates and could cause serious personal injury or property damage.
Figure 26. Example of using a dead center
installed in the tailstock.
Model G4000 (Mfg. Since 8/09)
-25-
Live Centers
Using a Center in the Tailstock
The dead center achieves a more accurate finished product but requires low spindle speeds to
avoid heat from friction damaging the center of
workpiece. The live center has bearings that allow
the center tip and the workpiece to rotate together,
and can be installed in the tailstock quill for higher
speeds and less time spent lubricating the tip, but
with a slight bit of accuracy loss.
1. DISCONNECT LATHE FROM POWER!
Using Dead Center in the Spindle
2. Thoroughly clean the tapered mating surfaces of the tailstock quill bore and the center.
3. Use the tailstock handwheel to feed the quill
out from the casting at least 1⁄2", but for purposes of stability and accuracy no more than
1 1⁄4".
1. DISCONNECT LATHE FROM POWER!
2. Thoroughly clean the tapered mating surfaces of the spindle bore and the MT#3 dead
center, then insert the center into the spindle
bore through the chuck or faceplate.
3. Install a lathe dog on the workpiece, then
mount the workpiece between the spindle and
tailstock centers with the lathe dog inserted
into the chuck or faceplate (see Figure 27 on
the previous page for an example).
4. To remove the center from the spindle, insert
a piece of round bar stock or similar tool
through the outboard end (on the left side of
the headstock), then tap the center loose.
Note: Hold onto the center as you tap it loose
to avoid dropping it and damaging the tip or
the bedways.
NOTICE
To avoid premature wear of the dead center
or damage to the workpiece, always use
lower spindle speeds and keep the dead
center tip well lubricated.
-26-
Note: The scale on the tailstock handwheel
is marked in 0.025mm increments (approximately 0.001") with one full revolution moving
the quill 1.25mm (approximately 0.050").
4. Seat the center into the quill, position the
tailstock so that the tip of the center presses
against the workpiece enough to hold it in
place, then tighten the tailstock lock nut.
5. Rotate the tailstock handwheel clockwise to
feed the center farther into the workpiece
until it is snug, then tighten the quill lock
lever.
Note: The force against the mounted
workpiece will fully seat the center's taper
into the quill. However, do not overly force
the center into the workpiece with the handwheel—this will make removing the center
very difficult and could damage it.
6. To remove the center from the quill, hold
onto it with one hand, then rotate the tailstock
handwheel counterclockwise to draw the quill
back into the casting until the center releases.
Model G4000 (Mfg. Since 8/09)
Offsetting Tailstock
Aligning Tailstock
The tailstock can be offset slightly from the spindle center line to cut shallow tapers in a workpiece
mounted between centers. When the tailstock is
offset toward the operator, the machined workpiece
will be smaller at the tailstock end. Conversely, if
the tailstock is offset away from the operator, the
taper will be smaller at the spindle end.
The tailstock was aligned with the spindle at the
factory. However, we recommend that you take
the time to ensure that the tailstock is aligned
to your own desired tolerances, especially if you
have made tailstock offset adjustments.
Qty
Tools Needed
Hex Wrench 4mm............................................... 1
Wrench 14mm.................................................... 1
1. Use a precision level to make sure the lathe
bedway is exactly level from side-to-side
and front-to-back. If necessary, use shims
between the lathe and chip pan.
To set the tailstock offset:
1. Loosen the tailstock lock nut (see Figure 28).
To align the tailstock with the spindle:
2. Center drill a 6" long piece of round bar stock
on both ends. Set it aside for use in Step 5.
Lock Nut
Adjustment
Set Screw
(1 of 2)
Note: If the tailstock is out of alignment by
only a few thousands of an inch, the center
drill will find the center point during the drilling
process. If the tailstock appears grossly out
of alignment, adjust the tailstock offset until it
appears to be centered.
3. Make a dead center by turning a shoulder on
a similar piece of round stock, then flip the
piece over in the chuck and turn a 60° point
(see Figure 29).
Offset
Scale
Figure 28. Tailstock offsetting controls.
2. Alternately loosen and tighten the two adjustment set screws (one on either side of the
tailstock) until the desired offset is indicated
on the offset scale, then retighten the lock
nut.
Note: As long as the fabricated dead center
remains in the chuck, the point of this center
will remain true to the spindle center line.
However, if it is removed, the point will have
to be re-finished before using it for this procedure again.
3. To return the tailstock back to the original
position, repeat Step 2 until the centered
position is reached.
Note: For purposes of accuracy, you may
want to perform the Aligning Tailstock procedure on this page after offset adjustments
have been made.
Figure 29. The fabricated dead center.
Model G4000 (Mfg. Since 8/09)
-27-
4. Install the MT#2 dead center into the
tailstock.
8. Use a caliper to measure both ends of the
workpiece.
5. Attach a lathe dog on the spindle end of
the bar stock from Step 2, then mount
the workpiece between the centers (see
Figure 30 for an example).
—If the machined workpiece is thicker at the
tailstock end, move the tailstock toward the
operator 1⁄2 the distance of the amount of
taper (see Figure 31).
Move the tailstock toward
the operator half the
distance of the taper.
Looking down from above.
Figure 31. Adjust tailstock toward the operator.
Figure 30. Example of bar stock mounted
between centers.
6. Turn approximately 0.010" off the diameter of
the entire length of the workpiece.
—If the machined workpiece is thinner at the
tailstock end, move the tailstock away from
the operator 1⁄2 the distance of the amount
of taper (see Figure 32).
7. Mount a test or dial indicator so that the
plunger is on the tailstock quill.
Looking down from above.
Note: If necessary in the following step,
refer to Offsetting Tailstock on Page 27 for
adjusting the tailstock position.
Move tailstock away from
the operator half the
distance of the taper.
Figure 32. Adjust tailstock away from the
operator.
-28-
Model G4000 (Mfg. Since 8/09)
Drilling with
Tailstock
The tailstock can be used to drill holes by
mounting a drill bit in the tailstock, rotating
the workpiece with the spindle, then using the
tailstock quill handwheel to advance the drill bit
into the workpiece. See Figures 33–34 for examples of drill chuck and tapered drill bit installation.
Steady Rest
The steady rest serves as a support for long,
slender workpieces that extend beyond the chuck
or faceplate more than 2 1⁄ 2 times its diameter
and a center mounted in the tailstock cannot be
used. This is accomplished by adjusting the brass
fingers of the rest so that they evenly contact the
workpiece on three sides to support it and still
allow it to freely rotate.
The steady rest can be positioned for purposes
of stability and accuracy on either side of the carriage and anywhere along the bedway.
Qty
Tools Needed
Wrench 13mm.................................................... 1
To install and use the steady rest:
Figure 33. Example of drill chuck installation.
1. DISCONNECT LATHE FROM POWER!
2. Remove the clamp hex nut, bolt, and clamp
block from the bottom of the steady rest (see
Figure 35).
Finger
Lock
Nut
Finger
Adjustment
Knob
Figure 34. Example of drill bit installation.
Bedway
Notch
Clamp
Hex Nut
Clamp
Block
Figure 35. Steady rest components.
3. Clean away any debris and grime from the
bedways, the steady rest ways, and the
clamp block.
4. Align the bedway notch in the base of
the steady rest with the rear bedway, then
secure the rest with the hardware removed in
Step 2.
Model G4000 (Mfg. Since 8/09)
-29-
5. Loosen the finger lock nuts, turn the adjustment knobs until the fingers make even contact with the workpiece, then re-tighten the
lock nuts.
Note: The fingers should rest against the
workpiece to fully support it at all three points,
but also allow it to freely rotate with the spindle without causing deflection.
6. Lubricate the finger tips with anti-seize grease
during operation.
Cross Slide
Handwheel Dial Increments
Distance
One Increment............. 0.025mm (approx. 0.001")
One Full Rotation.........1.250mm (approx 0.050")
The cross slide sits directly on the carriage saddle
and moves the cutting tool perpendicular to the
workpiece when the handwheel is rotated (see
Figure 37).
Note: After prolonged use, the fingers will
require milling or filing to clean up the contact
surfaces.
Cross Slide
Follow Rest
The follow rest shown in Figure 36 is mounted
on the front of the carriage saddle and follows
the movement of the tool along the length of the
workpiece. The follow rest is used on long, slender parts to prevent flexing of the workpiece from
the pressure of the cutting tool. This rest requires
only two fingers as the cutting tool acts as the
third support.
Cross Slide
Dial
& Handwheel
Figure 37. Cross slide (compound slide removed
for photo clarity).
The cross slide dial on your lathe has a 2:1 ratio.
This means:
•
The dial shows the actual distance the tool
moves in-or-out.
•
The amount removed from the workpiece will
be twice the distance the dial indicates.
For example, if you wanted to remove 0.200" from
the diameter of the workpiece, you would rotate
the cross slide handwheel only 0.100" as indicated on the dial.
Figure 36. Follow rest.
The follow rest is installed/removed with two cap
screws at the base. The fingers are set against
the workpiece in the same manner as those of the
steady rest. Always lubricate the finger tips with
an anti-seize grease during operation.
-30-
Model G4000 (Mfg. Since 8/09)
Compound Slide
Tool Holders
Handwheel Dial Increments
Distance
One Increment............................................ 0.001"
One Full Rotation....................................... 0.040"
Your Model G4000 lathe ships with a 4-way tool
post and C-type tool holder. The advantage of the
4-way tool post is that it can hold four cutting tools
at one time, and each tool can be quickly indexed
(rotated) to the workpiece as needed.
The compound slide sits on the cross slide and
is the base for the tool post. This slide rotates
around its mounting on the cross slide and moves
in-and-out using the handwheel. These features
allow the operator to engage the cutting tool with
the workpiece at any angle necessary for the
operation.
Tools Needed
Qty
Wrench 10mm.................................................... 1
To set the compound slide angle:
4-Way Tool Post
Tools Needed
Qty
Hex Wrench 6mm............................................... 1
To use the 4-way tool post:
1. Loosen the tool post cap screws until the tool
fits underneath them, as shown in Figure 39,
then evenly and firmly tighten the cap screws
to secure the tool.
1. Loosen the hex nuts on either side of the
compound slide (see Figure 38).
NOTICE
To properly secure the tool against the
forces of cutting, the tool must be firmly
secured with at least two post cap screws.
Compound
Handwheel
& Scale
Hex Nut
(1 of 2)
Lock
Lever
Angle Scale
Tool
Figure 38. Compound slide controls.
2. Rotate the slide until the desired angle is indicated on the angle scale, then re-tighten the
two hex nuts.
Post
Cap Screw
Figure 39. 4-way tool post with tool mounted.
2. Repeat Step 1 for any remaining tools.
3. Loosen the lock lever, rotate tool post to
index the desired tool to the workpiece, then
re-tighten the lock lever.
Model G4000 (Mfg. Since 8/09)
Note: The 4-way tool post is aligned in four
rotational positions by an indexing pin mounted in the compound slide that engages slots
underneath the tool post base.
-31-
C-Type Tool Holder
Tools Needed
Qty
Wrench 13mm.................................................... 1
Spindle Speed
The spindle speed is controlled by belts and pulleys inside the change gear cover (see Figure 42).
To use the C-type tool holder:
1. DISCONNECT LATHE FROM POWER!
2. Remove the 4-way tool post from the compound slide.
3. Replace the beveled pin from the compound
slide with the 8 x 20mm pin (see Figure 40).
Tool
Holder
Base
8 x 20mm
Pin
Figure 40. C-type tool holder components.
4. Slide the tool holder base onto the tool post
bolt, then rotate it until the pin is inserted into
the base indent.
5. Thread the M8-1.25 x 30 hex bolt into the
holder top, slide the top onto the tool post
bolt, then secure the tool with the M8-1.25
hex nut (see Figure 41).
Note: Thread the hex bolt up or down to
make sure the holder top is level and makes
even contact with the tool.
Figure 42. Belts and gears inside the change
gear cover.
To set the correct spindle speed for your operation, you will need to: 1) Determine the spindle
speed (RPM) needed for your operation, and 2)
configure the spindle belt on the pulleys for the
calculated speed.
The gears, pulleys, and
belts inside the change
gear cover represent
severe entanglement hazards. ALWAYS disconnect the lathe from power
before opening the change
gear cover.
Hex
Bolt
Holder
Top
Figure 41. Cutting tool properly installed in the
C-type tool holder.
-32-
Model G4000 (Mfg. Since 8/09)
Calculating Correct Spindle Speed
1. Use the table in Figure 43 to determine
the recommended cutting speed for the
workpiece material.
Note: Cutting speeds are expressed in SFM
(surface feet per minute) that the workpiece
moves against the cutter, which is different
from the spindle speed (RPM).
Recommended Cutting Speeds
Average Tool Speed (sfm)
Work Material
Rough Cuts Finish Cuts
800
Magnesium
400
700
Aluminum
350
500
Brass & Bronze
250
250
Copper
100
250
Cast Iron (Soft)
100
150
Cast Iron (Hard)
50
250
Mild Steel
100
150
Cast Steel
70
150
Alloy Steels (Hard)
50
150
Tool Steel
50
180
Stainless Steel
60
200
Titanium
90
100
Hi Maganese Steel
40
Note: These values are based on HSS cutting
tools. For carbide cutting tools, double the average speed. These values are a guideline only.
Refer to the MACHINERY’S HANDBOOK for
more detailed information.
Figure 43. Cutting speed table.
2. Determine the final diameter, in inches, for
the cut you intend to make.
Note: For this step, you will need to average out the diameters or work with the finish
diameter.
Model G4000 (Mfg. Since 8/09)
3. Use the following formula to determine
the correct spindle speed (RPM) for your
operation:
Spindle Speed =
Cutting Speed (SFM) x 4
Diameter of Cut
Example A:
You will finish cut 1⁄ 2" diameter piece of
cast steel stock, using an HSS cutting
tool.
Step 1:
150 (SFM from chart) x 4 = 600
Step 2:
600 / .5" (Diameter of workpiece) = 1200
Result:
The correct spindle speed is 1200 RPM.
Example B:
You will rough turn a 1" diameter piece
of stainless steel, using a carbide cutting
tool.
Step 1:
60 (SFM from chart) x 2 (for carbide tool)
= 120
Step 2:
120 (Calculated SFM) x 4 = 480
Step 3:
480 / 1" (Diameter of workpiece) = 480
RPM
Result:
The correct spindle speed is 480 RPM.
-33-
min
A
B
120
C
300 400
600 1000 2000
BC1 BC2 AC1 BC3 AC2 AC3
1 23
Figure 44. Model G4000 spindle speed configuration chart.
Configuring Spindle Belt
There are six spindle speeds available by properly
positioning the spindle belt on the motor pulley (A),
the idler pulley (B), and the spindle pulley (C).
To configure the spindle belt:
1. DISCONNECT LATHE FROM POWER.
2. Refer to the chart in Figure 44 above and
find the spindle speed that is closest to your
calculated spindle speed.
Note: This chart is also on the front of the
headstock. In most cases, the calculated
spindle speed will be between the available
speeds. Use your best judgement when
choosing either the higher or lower speed.
3. Open the change gear cover and use Figure
45 to identify the motor (A), idler (B), and
spindle (C) pulleys, the spindle belt, and the
belt tensioning pulley.
Belt Tensioning Pulley
C
4. Release the tension on the spindle belt by
pulling the belt tensioning lever all the way
forward.
5. Position the spindle belt onto the pulley
combination as indicated under the selected
spindle speed in the chart, then push the belt
tensioning lever all the way back to apply the
proper tension to the spindle belt.
Note: Use the illustrations in Figure 46 on
the next page to aid in the spindle belt configuration.
6. Close and secure the change gear cover
before connecting the machine to power.
Example:
You will need to configure the lathe for a spindle
speed of 1200 RPM, as required by Example A
on the previous page.
Step 1: Examine the spindle speed chart to find
that the available speed of 1000 RPM is the closest to the calculated speed.
Step 2: Note that the spindle belt configuration
underneath 1000 RPM on the chart is AC2.
Step 3: Position the spindle belt on the second
pulley slot on the motor and spindle pulleys.
B
A
Spindle
Belt
Note: The pulley slots are counted 1 through 3,
beginning with the outside slot.
Figure 45. Spindle speed pulleys and spindle
belt.
-34-
Model G4000 (Mfg. Since 8/09)
120 RPM
(BC1)
300 RPM
(BC2)
400 RPM
(AC1)
600 RPM
(BC3)
1000 RPM
(AC2)
2000 RPM
(AC3)
Figure 46. Illustrations of spindle belt configurations for each available spindle speed.
Feed Rate Lever
The feed rate lever shown in Figure 47 is used
with the change gears to provide the various powered feed rates for the carriage.
Feed Rate Lever
NOTICE
Attempting to move the feed rate lever when
the spindle is rotating will damage the internal gears of the power feed mechanism and
will void the warranty. NEVER attempt to
move the feed rate lever when the lathe is
running.
To set the feed rate lever:
1. Make sure the spindle is OFF and has come
to a complete stop.
Figure 47. Feed rate lever.
Model G4000 (Mfg. Since 8/09)
-35-
Note: In the next step, the gears must properly mesh. It may be necessary to rock the
spindle back-and-forth by hand until the
gears mesh. Also, use one hand on the bottom of the lever to apply sideways pressure
when moving it.
2. Pull the lever knob out, slide the lever under
the correct hole, raise it up to align the lever
pin with the hole, then release the knob.
Note: Make sure the lever pin is firmly seated
into the hole before continuing the operation.
Change Gears
In addition to setting the feed rate lever, the
change gears shown in Figure 48 work with the
feed rate lever to provide the various powered
feed rates for the carriage.
•
Leave 0.002"–0.003" of backlash between
the gears when you mesh them together so
that they do not bind.
•
To avoid restricting gear rotation, do not
overly tighten the fasteners that secure them.
This hardware is intended to just keep them
in place.
•
Before starting the lathe, rotate the change
gears by hand to make sure they have proper
backlash and rotate freely.
To learn how to configure the change gears, perform the following instructions to set up the lathe
for the feed rate of 0.0078 in./rev. (inches of travel
per revolution of the spindle), which is referred
to in the grayed sections of the feed rate chart
in Figure 49.
ins
a
"a"
Change Gears
120
b
Pivot
Arm
120/127T
Gears
"b"
Change
Gear
Figure 48. Change gears.
When configuring the change gears, follow
these rules to ensure good results:
•
-36-
When removing or replacing the change
gears, thoroughly clean the gears, bushings,
and the gear shafts with a stiff brush and mineral spirits. When dry apply a thin coat of light
machine oil to the gear teeth, the bushings,
and the gear shafts to prevent corrosion and
ensure smooth movement.
40
80
40
127
Lever
9
5
1
1
a
28
28
28
42
b
60
60
60
60
Feed 0.0047 0.0063 0.0078 0.012
Figure 49. Sections of the feed rate chart greyed
illustrate the example.
Qty
Tools Needed
Hex Wrench 5mm............................................... 1
Wrench or Socket 10mm.................................... 1
Flat Head Screwdriver #2................................... 1
To configure the change gears for a feed rate
of 0.0078 in./rev.:
1. DISCONNECT LATHE FROM POWER!
2. Open the change gear cover.
3. Loosen the cap screw that secures the pivot
arm, then lower the 120/127T gears away
from the "a" gears (see Figure 48).
4. Remove the E-clip that secures the "a" gears,
then remove the gears from the shaft (see
Figure 50).
Model G4000 (Mfg. Since 8/09)
"a"
Change Gears
Shaft
E-Clip
9. With the 120T gear facing out, insert the
special bolt with the slotted washer through
the front of the assembly, slide the remaining
flat washer onto the bolt from the rear of the
gears.
10. Thread the bolt into the special T-nut on the
pivot arm, but leave it loose and slide the
120/127T gears to the left and away from the
"b" gear.
Keyed Bushing
Figure 50. "a" change gears and shaft
components.
5. Carefully remove the keyed bushing from the
center of the gears, orient the 28T and 40T
gears together, then re-insert the bushing to
secure the assembly.
6. Slide the "a" gears onto the gear shaft so
that the 28T gear is facing out and the 40T
gear meshes with the 80T gear above it, then
secure them in place with the E-clip.
7. Remove the special bolt and washers that
secure the 120/127 combo gear, then remove
the gears from the gear shaft (see Figure
51).
120/127T
Gears
Special Bolt
& Washers
11. Remove the cap screw and flat washer that
secure the "b" gear, then remove the gear
from the gear shaft (see Figure 51).
12. Align the keyway on the 60T gear with the
gear shaft key, then install the gear and
secure it with the cap screw and flat washer.
13. Move the 120/127T gears to the right and
mesh the 120T gear and the 60T "b" gear,
then tighten the special bolt to secure the
120/127T gears in place.
14. Rotate the pivot arm up so that the 127T and
28T "a" gear mesh, then tighten the pivot arm
cap screw to secure it in place, as shown in
Figure 52.
Special T-Nut
"b" Change Gear
Figure 51. 120/127T Gears and "b" change gear
removed.
8. Carefully remove the keyed bushing from the
center of the gears, orient the 120T and 127T
gears together, then re-insert the bushing to
secure the assembly.
Figure 52. Change gears configured for a feed
rate of 0.0078".
15. Rotate the spindle pulley by hand to make
sure that all the change gears are properly
meshed, freely rotating, and with 0.002"—
0.003" of backlash
—If the change gears are not properly meshed
and freely rotating, repeat this procedure.
16. Close and secure the change gear cover.
Model G4000 (Mfg. Since 8/09)
-37-
Power Feed
(Non-Threading)
Note: These instructions are only valid for nonthreading operations. To configure the feed rate
for threading, refer to the Threading subsection
on Page 40.
To engage the power feed for non-threading
operations:
Power feed on the Model G4000 simple means
using the machine-driven components to move
the carriage left or right along the workpiece
rather than manually rotating the handwheel.
1. DISCONNECT LATHE FROM POWER!
2. Examine the feed rate chart in Figure 55 to
determine the necessary configurations for
the change gears and feed rate lever.
The powered speed at which the carriage travels
is set with the feed rate lever and the change
gears, but it is also dependent upon the spindle
speed.
The correct powered feed rate of the carriage and
the spindle speed is determined by the material to
be machined, the type of tooling used, and by the
desired finish. Refer to the table in Figure 53 or
the Machinery's Handbook for guidelines.
Note: The feed rate chart is also displayed on
the front of the headstock.
a. Find the desired feed rate on the bottom
row of the chart labeled Feed.
b. Set the feed rate lever as directed by the
number at the top of that column on the
line labeled Lever (refer to Feed Rate
Lever on Page 35 for detailed instructions).
Note: This chart provides the cutting speed for a
given feed rate. You must use the cutting speed
with the formula on Page 33 to calculate the correct spindle speed (RPM) for the chosen feed
rate.
Low Carbon
Steel
High Carbon
Annealed
Steel
Normalized
Allow Steel
Aluminum
Alloys
Cast Iron
Bronze
Rough
Cutting
Speed SFM
90
50
45
200
70
100
Rough Feed
Rate IPR
0.010" to
0.020"
0.010" to
0.020"
0.010" to
0.020"
0.015" to
0.030"
0.010" to
0.020"
0.010" to
0.020"
Finish
Cutting
Speed SFM
120
65
60
300
80
130
Finish Feed
Rate IPR
0.003" to
0.005"
0.003" to
0.005"
0.003" to
0.005"
0.005" to
0.010"
0.003" to
0.010"
0.003" to
0.010"
SFM = Surface Feet per Minute
IPR = Inches per Revolution
Note: These values are for HSS cutting tools. For carbide cutting tools, double the cutting speed. These
values still may need slight adjustment depending on the cutting tool rake and relief angles. Refer to the
MACHINERY'S HANDBOOK for more detailed information.
Figure 53. HSS cutting speed and feed rate table.
-38-
Model G4000 (Mfg. Since 8/09)
4. Push the feed lever up to engage the carriage
gears with the leadscrew (see Figure 54).
NOTICE
Carriage feed rate is dependent upon the
spindle speed—higher spindle speeds
equal higher feed rates! Pay close attention
to the rate of the powered carriage movement and keep your hand poised over the
feed lever to disengage it when necessary.
Failure to fully understand this could result
in the carriage crashing into the headstock
or tailstock causing severe damage to the
lathe.
Half-Nut Lever Disengaged (Up)
c. Configure the "a" and "b" change gears
as directed (refer to Change Gears on
Page 36 for detailed instructions).
Note: It may be necessary to rock the carriage handwheel back-and-forth to mesh the
feed gear with the leadscrew.
Feed Lever
Engaged
(Up)
Note: When configuring the change gears
for non-threading feed rates, always have
the 120T gear facing out.
3. Use the handwheels to properly position the
tool against the workpiece that is correct for
your operation.
NOTICE
Figure 54. Feed lever in the engaged (up)
position.
5. Push the half-nut lever up to disengage the
half-nut from the leadscrew, as shown in
Figure 54.
6. Connect the lathe to power, then with one
hand poised over the feed lever, start the
spindle rotation.
NEVER attempt to engage the feed lever (up)
and half-nut lever (down) at the same time,
and NEVER force these levers. Otherwise,
severe damage to the lathe could occur.
Note: The direction of the carriage reverses
when the spindle direction reverses.
7. When required, push down on the feed lever
to disengage the carriage from the leadscrew
and stop its movement.
ins
a
120
b
40
80
40
127
Lever
9
5
1
1
a
28
28
28
42
b
60
60
60
60
Feed 0.0047 0.0063 0.0078 0.012
Figure 55. Model G4000 feed rate chart.
Model G4000 (Mfg. Since 8/09)
-39-
Threading Controls
The purpose of this subsection is to orient you
with the controls used when threading and how to
use the threading dial.
Half-Nut Lever
The half-nut lever engages the carriage with the
leadscrew which moves the cutting tool along the
length of the workpiece (see Figure 57).
Half-Nut Lever
Engaged (Down)
If you are unfamiliar with threading on a lathe, we
strongly recommend that you read books, review
industry trade magazines, or get formal training
before beginning any threading projects.
Feed Lever
The feed lever must be in the disengaged (down
and horizontal) for threading operations or the
half-nut will not engage with the leadscrew (see
Figure 56).
Figure 57. Half-nut lever engaged (down) for
threading operations.
Feed Lever Disengaged
(Down & Horizontal)
Thread Dial & Chart
The numbers on the thread dial are used with
the thread dial chart to show when to engage the
half-nut during inch threading. The thread dial
gear must be engaged with the leadscrew for
this to work. Loosen the cap screw that secures
the thread dial, then pivot it so that the dial
gear meshes with the leadscrew, as shown in
Figure 58.
Figure 56. The feed lever in the disengaged
position.
Leadscrew
Cap Screw
Thread Dial Gear
Figure 58. Thread dial gear engaged with the
leadscrew.
-40-
Model G4000 (Mfg. Since 8/09)
To use the thread dial chart (see Figure 59), find
the TPI (threads per inch) on the chart that you
want to cut, then reference the dial number to
the right of it. The dial numbers indicate when to
engage the half-nut for a specific thread pitch.
Note: The thread dial chart can also be found on
the front of the change gear door.
THREAD DIAL
T. P. I.
8
12
16
20
24
26
36
40
46
52
9
13
23
10
14
18
22
26
30
36
44
48
56
11
19
9 12 – 11 12
DIAL
For example, to cut a TPI of 11, engage the halfnut when the thread dial points to the 1, 3, 5, or
7. To cut a TPI of 24, engage the half-nut on any
number between 1 and 8.
To maintain accuracy and consistency, engage
the half-nut on the same thread dial number for
each pass. Failure to start on the same number
each time may lead to cutting off the thread made
in the previous pass.
Note: The thread dial is not used when cutting
metric threads. Leave the half-nut engaged from
the beginning until the threads are complete.
NOTICE
1–8
DO NOT engage the half-nut when the
spindle speed is over 300 RPM. Otherwise,
damage to the leadscrew or carriage components could occur.
1, 3
5, 7
2, 6
Figure 59. Thread dial chart.
Model G4000 (Mfg. Since 8/09)
-41-
Understanding
Threading Charts
For example, for a inch thread pitch of 11, the feed
rate lever is set to 5, and the 60T "a" and the 30T
"b" gears are used.
The bottom metric threading chart is arranged
with the thread pitch selection in the bottom row,
the feed rate lever setting in the top row, and the
"a" and "b" change gear selection in the middle
rows.
The threading charts illustrated in Figure 60
show the various feed rate lever and change gear
configurations for the inch and metric threading
operations that your lathe can perform.
The top chart is for inch threading. Find the TPI for
your operation in the columns under the top row of
numbers from 1 to 9. This top row is the setting for
the feed rate lever. The correct "a" and "b" gears
to use are shown in the two left columns, and the
configuration of these gears is illustrated to the
left of that.
n
1"
40
80
a
40
127
120
b
mm
a
120
b
Lev
er
1
2
60 30
8
9
a
b
3
4
5
6
7
8
9
9.5 10 11 11.5 12 13 14
30 30 16
18 19 20 22 23 24 26 28
30 60 32
36 38 40 44 46 48 52 56
40
Lever 7
80
1
1
4
7
1
1
1
7
1
1
40
a
30 28 30 30 30 30 30 42 60 60 60
127
b
60 60 60 45 30 36 30 36 30 36 30
0.5 0.7 0.75 0.8 1 1.25 1.5 1.75 2 2.5 3
Figure 60. Model G4000 threading charts.
-42-
Model G4000 (Mfg. Since 8/09)
ACCESSORIES
SECTION 5: ACCESSORIES
Some aftermarket accessories can be
installed on this machine that could cause
it to function improperly, increasing the risk
of serious personal injury. To minimize this
risk, only install accessories recommended
for this machine by Grizzly.
G1075—52-PC. Clamping Kit
All the blocks, bolts, nuts, and hold-downs are
case hardened. This clamping kit includes: 24
studs, 6 step block pairs, 6 T-nuts, 5 flange nuts,
4 coupling nuts, and 6 end hold-downs. The rack
can be bolted to the wall or side of the machine
for easy access. Features 1⁄ 2" T-Nuts & 3 ⁄ 8" bolts.
NOTICE
Refer to the newest copy of the Grizzly
Catalog for other accessories available for
this machine.
SB1365—South Bend Lathe Way Oil, 12 oz.
T23962—ISO 68 Moly-D Machine Oil, 5 gal.
T23963—ISO 32 Moly-D Machine Oil, 5 gal.
Moly-D oils are some of the best we've found for
maintaining the critical components of machinery
because they tend to resist run-off and maintain
their lubricity under a variety of conditions—as
well as reduce chatter or slip. Buy in bulk and
save with 5-gallon quantities.
Figure 62. G1075 52-PC. Clamping Kit.
H7724—60" Birch Workbench w/Drawers
When organized storage is every bit as important
as a stable work surface, this workbench is just
what you need. Includes six drawers with ball bearing slides and two lower compartments. The end
vise also includes two bench dogs. Specifications:
2 3 ⁄4" top edge thickness; 60"W x 20"D x 34"H; 148
lbs. approximate shipping weight.
SB1235
T23963
Figure 61. 12 oz. way oil & 5 gallon machine oil.
Figure 63. H7724 60" Birch Workbench with
Drawers.
Model G4000 (Mfg. Since 8/09)
-43-
G9610—Test Indicator
0.03" Range/0.001" Resolution
G9611—Test Indicator
0.008" Range/0.0001" Resolution
G9612—Test Indicator
0.030" Range/0.0005" Resolution
These test indicators have an easy to read dial
and a pivoting stylus that moves at right angles to
the dial face.
T10118—Mini Digital Readout Kit
Here’s the slickest setup for managing the depth
of cut with your tailstock! Just set up, touch off and
zero out! You’re going to know the exact position
of the tool. Both the scale display and remote
display come with a 0.0005" (five ten-thousandths
of an inch) resolution, inch or millimeter display,
zero keys and ON/OFF keys. The scale has an
8" range and its display features ABS or INC
mode as well as a Hold key. Both displays read
independently of each other, too! You’ll be able
to see your depth at a glance with the large, 1/2"
character remote display. The 6' data cable is long
enough to mount the remote display in almost any
convenient location.
Figure 64. Test Indicator.
H7975—Digital Caliper w/ABS 6"
H7976—Digital Caliper w/ABS 8"
This Digital Caliper features absolute and relative
measurements, hardened stainless steel construction, inch/metric conversion, lock knob, zero
reset, data part and battery life indicator. Inch/
metric resolution is 0.005mm/0.0002". Comes in
a fitted foam-lined plastic case and includes a
spare battery.
Figure 66. T10118 Mini Digital Readout Kit
Figure 65. H7975/H7976 Digital Caliper w/ABS.
order online at www.grizzly.com or call 1-800-523-4777
-44-
Model G4000 (Mfg. Since 8/09)
G1069—MT#2 Live Center Set
A super blend of quality and convenience, this
live center set offers seven interchangeable tips.
High-quality needle bearings prolong tool life
and special tool steel body and tips are precision
ground. Supplied in wooden box.
20-Pc. Carbide Tipped Tool Bit Sets
G9775—1 ⁄4"
G9776— 3 ⁄ 8"
G9777—1 ⁄ 2"
An exceptional value for carbide lathe tool bits!
Twenty piece sets offer tremendous savings over
bits sold individually. Includes ten C-2 grade
bits and ten C-6 grade bits for cutting steel and
alloys.
Figure 67. G1069 Live Center Set.
Figure 69. 20-Pc. Carbide Tipped Tool Bit Sets.
G9318—MT#2 Tailstock Turret
This precision Tailstock Turret will save you time
and money. With six tool sockets, you can quickly
change from one machining operation to the next
within seconds!
H2670—HSS Square Tool Bits
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 68. G9318 MT#2 Tailstock Turret.
Figure 70. H2670 HSS Square Tool Bits.
order online at www.grizzly.com or call 1-800-523-4777
Model G4000 (Mfg. Since 8/09)
-45-
Glanze 7-Pc. Insert Turning Tool Sets
H5680—5/16"
H5681—12mm
H5682—Carbide Inserts Package of 10
Here's a precision set for precision turning. These
tools have been machined to exacting specifications and feature rugged tool steel bodies with
black oxide finish. They all use the same carbide
inserts that are indexable to use all four faces.
Supplied in a fitted case.
H5936—2 Pc. Knurling Tool Set
This 2 piece set includes a ½" x 4" Single Knurling
Toolholder and a ½" x 4½" Double Knurling
Toolholder with Pivoting Head. Both have a black
oxide finish.
Figure 72. H5936 2 Pc. Knurling Tool Set.
Figure 71. Glance 7-Pc. Insert Turning Tool
Sets.
order online at www.grizzly.com or call 1-800-523-4777
-46-
Model G4000 (Mfg. Since 8/09)
SECTION 6: MAINTENANCE
Lubrication
To reduce risk of shock or
accidental startup, always
disconnect machine from
power before adjustments,
maintenance, or service.
Schedule
For optimum performance from your machine,
follow this maintenance schedule and refer to any
specific instructions given in this section.
Note: This maintenance schedule is based on
average daily usage. Adjust the maintenance
schedule to match your usage to keep your lathe
running smoothly and to protect your investment.
Daily Check:
• Loose mounting bolts.
• Damaged or worn belts.
• Worn or damaged wires.
• Any other unsafe condition.
Every 6–8 Hours of Operation:
• Clean the machine.
• Daily lubrication procedures.
Cleaning &
Protecting
Your lathe has numerous metal-to-metal moving
parts that require proper lubrication to help ensure
efficient and long-lasting operation.
Other than the lubrication points covered in this
section, all other bearings are internally lubricated
and sealed at the factory. Simple leave them
alone unless they need to be replaced.
DISCONNECT THE LATHE FROM POWER
BEFORE PERFORMING LUBRICATION!
Make copies of Pages 48–49 and check off the
correct boxes in the chart of Figure 77 to keep
track of the daily lubrication procedures. Follow
the same sequence of lubrication each day to
help ensure all locations are lubricated.
For ball oilers, wipe them clean, then depress the
ball with the tip of the oil bottle filled with ISO 32
oil (or equivalent) and squirt once. For other components, thoroughly clean them with a shop rag
and mineral spirits, then use a clean rag or brush
to apply a thin coat of lubricant (we recommend a
good quality way oil).
NOTICE
When lubricating the ball oilers inside the
change gear cover, DO NOT allow any lubricant to contact the belts or pulleys. If lubricant does get on these parts, thoroughly
clean the pulleys and replace the belts with
new ones before continuing operations.
Cleaning the Model G4000 is relatively easy.
Vacuum excess metal chips, then wipe off builtup grime. Protect the unpainted metal surfaces
with regular applications of Way Oil (refer to
ACCESSORIES on Page 43).
Model G4000 (Mfg. Since 8/09)
-47-
lubrication 1
Quick Change Oil Cups
(1 Squirt)
Ball
Oilers
Leadscrew Bearing Ball Oilers
Ball Oilers
Figure 75. Leadscrew bearing ball oilers and
quick change gear oil cups.
Figure 73. Ball oilers inside the change gear
cover.
Carriage Handwheel
Ball Oiler
Spindle Bearing
Ball Oilers
Figure 76. Carriage handwheel ball oiler.
Figure 74. Spindle bearing ball oilers.
Daily Lubrication Chart
Machine Area
Lubricant
Figure
No.
No. of
Fittngs
Change Gears
ISO 32 Oil
73
4
Spindle Bearings
ISO 32 Oil
74
2
Leadscrew Bearings
ISO 32 Oil
75
2
Quick Change Cups
ISO 68/Way Oil
75
4
Carriage Handwheel
ISO 32 Oil
76
1
Apron
ISO 32 Oil
78
3
Tailstock
ISO 32 Oil
79
1
Leadscrew Bushing
ISO 32 Oil
80
1
Rack
ISO 68/Way Oil
81
Length
Leadscrew Threads
ISO 68/Way Oil
81
Length
Bedways
ISO 68/Way Oil
81
Length
Days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Figure 77. Daily lubrication chart.
-48-
Model G4000 (Mfg. Since 8/09)
lubrication 2
Carriage
Apron
Ball Oilers
Figure 78. Carriage apron ball oilers.
Tailstock Ball Oiler
Leadscrew Bushing
Ball Oiler
Figure 80. Leadscrew bushing block ball oiler.
Rack
(Full Length)
Bedways
(Full Length)
Leadscrew
(Full Length)
Figure 79. Tailstock ball oiler.
Figure 81. Rack, leadscrew and bedways.
NOTICE
Failure to followed reasonable lubrication
practices as instructed in this manual for
your lathe could lead to premature failure of
your lathe and will void the warranty.
Model G4000 (Mfg. Since 8/09)
-49-
SECTION 7: SERVICE
Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support. Note: Please gather
the serial number and manufacture date of your machine before calling.
Troubleshooting
Motor & Electrical
Symptom
Possible Cause
Possible Solution
Machine does not
start or a breaker
trips.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Power supply switched OFF or at fault.
Plug/receptacle at fault/wired wrong.
Motor connection wired wrong.
Wall circuit breaker tripped.
Wiring open/has high resistance.
Spindle switch at fault.
Start capacitor at fault.
Centrifugal switch at fault.
Motor at fault.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Machine stalls or is
underpowered.
1.
2.
3.
4.
5.
6.
7.
8.
Feed rate/cutting speed too fast.
Wrong workpiece material.
Belt(s) slipping.
Motor wired incorrectly.
Plug/receptacle at fault.
Pulley slipping on shaft.
Motor bearings at fault.
Machine undersized for task.
1.
2.
3.
4.
5.
6.
7.
8.
9. Motor overheated.
10.Spindle rotation switch at fault.
11.Run capacitor at fault.
12.Motor at fault.
13.Centrifugal switch at fault.
Machine has
vibration or noisy
operation.
-50-
Ensure power supply is on/has correct voltage.
Test for good contacts; correct the wiring.
Correct motor wiring connections (Page 55).
Ensure circuit size is correct/replace weak breaker.
Check/fix broken, disconnected, or corroded wires.
Replace switch.
Test/replace if faulty.
Adjust/replace centrifugal switch.
Test/repair/replace.
Decrease feed rate/cutting speed.
Use correct type/size of metal.
Tension/replace belt(s); ensure pulleys are aligned.
Wire motor correctly (Page 55).
Test for good contacts/correct wiring.
Replace loose pulley/shaft.
Test/repair/replace.
Use sharp tools at correct angle; reduce feed rate/
depth of cut; use cutting fluid if possible.
9. Clean motor, let cool, and reduce workload.
10.Test/replace switch.
11.Test/repair/replace.
12.Test/repair/replace.
13.Adjust/replace centrifugal switch if available.
1. Workpiece not held firmly in chuck/ 1. Correctly secure workpiece in chuck/faceplate.
faceplate.
2. Inspect/replace damaged bolts/nuts, and re-tighten
2. Motor or component loose.
with thread locking fluid.
3. Inspect/replace belts.
3. Spindle belt worn or loose.
4. Realign/replace shaft, pulley, set screw, and key.
4. Pulley loose.
5. Adjust feet, shim, or tighten mounting hardware.
5. Incorrectly mounted to workbench.
6. Fix/replace fan cover; replace loose/damaged fan.
6. Motor fan rubbing on fan cover.
7. Replace/sharpen bit; index bit to workpiece; use
7. Bit chattering.
correct feed rate and spindle speed.
8. Center workpiece in chuck or face plate; replace
8. Workpiece or chuck at fault.
defective chuck.
9. Test by rotating shaft, replace if grinding.
9. Motor bearings at fault.
10.Replace switch.
10.Centrifugal switch.
11.Replace bad gear(s)/bearing(s).
11.Quick change gears at fault.
Model G4000 (Mfg. Since 8/09)
Operations
Symptom
Possible Cause
Possible Solution
Bad surface finish.
1. Incorrect spindle speed or feed rate.
1. Adjust for proper spindle speed and feed rate
(Page 32).
2. Use sharp tools; use correct tool for the operation.
3. Adjust gibs (Page 52).
4. Lower tool position.
2. Dull tool or poor tool selection.
3. Too much play in gibs.
4. Tool too high.
Cannot remove
tapered tool from
tailstock quill.
1. Quill not retracted all the way back into the 1. Rotate the quill handwheel until the tapered tool is
forced out of quill.
tailstock.
2. Debris/oil not removed from tapered mating 2. Always make sure that tapered mating surfaces are
clean before inserting.
surfaces before inserting into quill.
Gear(s) will not line
up and mesh.
1. Gear(s) not aligned.
Cutting tool
or machine
components vibrate
excessively during
cutting.
1. Check for debris, clean, and re-tighten.
1. Tool holder not tight enough.
2. Cutting tool too far out from holder; lack of 2. Re-install cutting tool with no more than 1⁄3 of total
support.
length is sticking out of tool holder.
3. Too much play in gibs.
3. Adjust gibs (Page 52).
4. Cutting tool is dull.
4. Sharpen/replace.
5. Incorrect spindle speed or feed rate.
5. Adjust for proper spindle speed and feed rate
(Page 32).
Cross/compound
slide or carriage
feed has sloppy
operation.
1. Too much play in gibs.
2. Handwheel(s) loose.
3. Too much leadscrew backlash (cross slide
only).
4. Leadscrew mechanism worn or out of
adjustment.
Cross/compound
slide or carriage
feed hard to move.
1. Rotate spindle by hand until gear(s) falls into place.
1. Adjust gibs (Page 52).
2. Tighten handwheel fasteners.
3. Adjust leadscrew backlash (Page 53).
4. Tighten any loose fasteners on leadscrew
mechanisms; check for excessive wear/replace if
necessary.
1. Remove gibs, clean ways, lubricate, and properly
adjust gibs (Page 52).
2. Adjust gibs (Page 52).
Gibs are too tight.
Leadscrew backlash setting too tight (cross 3. Properly adjust cross slide leadscrew backlash
(Page 53).
slide only).
4. Clean and lubricate bedways.
Bedways are dirty/dry.
5. Inspect/replace gearing.
Gearing is at fault.
1. Gibs are loaded up with chips/grime.
2.
3.
4.
5.
1. Tailstock not
headstock.
Chuck jaws will
not move or do not
move easily.
1. Chips/debris lodged in jaws.
1. Remove jaws, clean and lubricate jaws, scroll-gear
threads, and chuck, then replace jaws.
Tailstock quill will
not feed out of
tailstock.
1. Quill lock is tightened down.
1. Turn quill lock counterclockwise to loosen.
Model G4000 (Mfg. Since 8/09)
properly
aligned
with 1. Properly align tailstock with headstock (Page 27).
Inaccurate turning
results from one
end of workpiece to
the other.
-51-
Adjusting Gibs
The gibs that affect the accuracy of the carriage,
cross slide, and compound slide movements along
their ways can be adjusted. The carriage uses a
gib clamp located on the rear of the carriage
saddle, and the cross slide and compound slide
use a wedge-shaped gib sandwiched between
the component base and the way.
Excessively
workpiece
undue wear
Excessively
ture wear of
NOTICE
loose gibs may cause poor
finishes, and may cause
of sliding surfaces and ways.
tight gibs may cause premathe sliding devices.
The goal of gib adjustment is to remove unnecessary sloppiness without causing the ways to bind.
Tight gibs make the movements more accurate,
but harder to perform. Loose gibs make the movements sloppy, but easier to perform.
Tools Needed
Qty
Wrench 7mm...................................................... 1
Standard Screwdriver #1.................................... 1
Cross Slide & Compound Slide Gibs
1. DISCONNECT LATHE FROM POWER!
2. Loosen the three hex nuts on the side of the
device (see Figures 82–83).
Compound Slide Gib Adjustment
Hex Nuts & Set Screws
Figure 83. Compound slide gib adjustment hex
nuts and set screws.
3. Loosen the set screws and move the device
back-and-forth to make sure the gibs are
loose, then tighten the set screws just until
you feel resistance.
4. Move the device back-and-forth and loosen
or tighten the set screws equally until you are
satisfied with the gib adjustment, then, without moving the set screws, re-tighten the hex
nuts to secure the setting.
Cross Slide Gib Adjustment
Hex Nuts & Set Screws
Figure 82. Cross slide gib adjustment hex nuts
and set screws.
-52-
Model G4000 (Mfg. Since 8/09)
Compound Slide
Backlash
Backlash is the amount the handwheel turns in
one direction before the slide begins to move.
Note: When adjusting backlash, keep in mind the
goal is to remove excess backlash without binding the movement of the slide. Overtightening will
cause excessive wear to the cross slide leadscrew
and nut.
Tools Needed
Qty
Wrench 10mm.................................................... 1
Phillips Screwdriver #2....................................... 1
To adjust the cross slide backlash:
1. DISCONNECT LATHE FROM POWER!
2. Remove the compound slide from the cross
slide, then loosen or tighten the adjustment
screw shown in Figure 84 until you are satisfied with the amount of backlash.
Adjustment Screw
Adjusting Half-Nut
The leadscrew half-nut should engage the
leadscrew firmly without tilting from side-to-side
during operation. With normal wear over an
extended period of use, adjustment of the half-nut
guide bar may be necessary. The goal of adjusting the half-nut guide bar is to remove excessive
play so that the half-nut easily and firmly engages
the leadscrew, but will not tilt from side-to-side
when engaged with the leadscrew for threading
operations.
Qty
Tools Needed
Hex Wrench 5mm............................................... 1
Wrench 7mm...................................................... 1
Standard Screwdriver #1.................................... 1
Half-Nut
Adjustment
Hex Nuts
& Set
Screws
Figure 85. Half-nut adjustment components.
To adjust the half-nut guide bar:
1. DISCONNECT LATHE FROM POWER!
Figure 84. Cross slide backlash adjustment
screw.
2. Remove the thread dial assembly.
3. Loosen the two adjustment hex nuts shown in
Figure 85, then adjust the set screws in small
increments.
4. Engage the half-nut with the leadscrew and
rock the carriage back-and-forth with the
handwheel.
5. Repeat Steps 3–4 until you are satisfied with
the adjustment, then without moving the set
screws, re-tighten the hex nuts and re-install
the thread dial assembly.
Model G4000 (Mfg. Since 8/09)
-53-
machine
SECTION 8: WIRING
These pages are current at the time of printing. However, in the spirit of improvement, we may make changes to the electrical systems of future machines. Compare the manufacture date of your machine to the one
stated in this manual, and study this section carefully.
If there are differences between your machine and what is shown in this section, call Technical Support at
(570) 546-9663 for assistance BEFORE making any changes to the wiring on your machine. An updated
wiring diagram may be available. Note: Please gather the serial number and manufacture date of your
machine before calling. This information can be found on the main machine label.
Wiring Safety Instructions
SHOCK HAZARD. Working on wiring that is connected to a power source is extremely dangerous.
Touching electrified parts will result in personal
injury including but not limited to severe burns,
electrocution, or death. Disconnect the power
from the machine before servicing electrical components!
MODIFICATIONS. Modifying the wiring beyond
what is shown in the diagram may lead to unpredictable results, including serious injury or fire.
This includes the installation of unapproved aftermarket parts.
WIRE/COMPONENT DAMAGE. Damaged wires
or components increase the risk of serious personal injury, fire, or machine damage. If you notice
that any wires or components are damaged while
performing a wiring task, replace those wires or
components.
MOTOR WIRING. The motor wiring shown in
these diagrams is current at the time of printing
but may not match your machine. If you find this
to be the case, use the wiring diagram inside the
motor junction box.
WIRE CONNECTIONS. All connections must
be tight to prevent wires from loosening during
machine operation. Double-check all wires disconnected or connected during any wiring task to
ensure tight connections.
CAPACITORS/INVERTERS. Some capacitors
and power inverters store an electrical charge for
up to 10 minutes after being disconnected from
the power source. To reduce the risk of being
shocked, wait at least this long before working on
capacitors.
CIRCUIT REQUIREMENTS. You MUST follow
the requirements at the beginning of this manual when connecting your machine to a power
source.
EXPERIENCING DIFFICULTIES. If you are experiencing difficulties understanding the information
included in this section, contact our Technical
Support at (570) 546-9663.
The photos and diagrams
included in this section are
best viewed in color. You
can view these pages in
color at www.grizzly.com.
-54-
Model G4000 (Mfg. Since 8/09)
wiringdiagram
diagram
wiring
Wiring Diagram
Spindle Switch
WARNING!
SHOCK HAZARD!
Disconnect power
before working on
wiring.
L
1
3
4
5
7
9
11
2
N
U1
V1
12
10
W2
Ro
Figure 86. Electrical box wiring.
Run Capacitor
20MFD 450VAC
Start Capacitor
100MFD 250VAC
Ground
Hot
Hot
Ro
Rw
V1
8 W2 6
U2
Rw
Ro
NEMA 5-15 Plug
(As Recommended)
Motor
W2
U2
V2
V1
U1
W1
Model G4000 (Mfg. Since 8/09)
Figure 87. Motor wiring.
READ ELECTRICAL SAFETY
ON PAGE 54!
-55-
SECTION 9: PARTS
Headstock
112
111 110
113
121
109
120
108
115
105
106
107
135
101
119A
121
120
114
118
115
107 106
104
103
123
114
122
105
126A
118
102
126
126B
127A
131
127A-1
124
133
134
126C
129
1001A
130
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
118
119A
120
P4000101
P4000102
P4000103
P4000104
P4000105
P4000106
P4000107
P4000108
P4000109
P4000110
P4000111
P4000112
P4000113
P4000114
P4000115
P4000118
P4000119A
P4000120
HEADSTOCK CASTING
3-JAW CHUCK BACK PLATE
SPINDLE
SPINDLE SHAFT KEY
GASKET
TAPERED BEARING 32007
BEARING CAP
SPACER
GEAR 40T X 30MM
SPINDLE PULLEY
STEEL BALL
SET SCREW M4-.7 X 5
THREADED LOCK COLLAR
SET SCREW M4-.7 X 10
SHAFT
KEYED BUSHING
GEAR 80T METAL
RETAINING CLIP
121
122
123
124
126
126A
126B
126C
127A
127A-1
129
130
131
133
134
135
1001A
P4000121
P4000122
P4000123
P4000124
P4000126
P4000126A
P4000126B
P4000126C
P4000127A
P4000127A-1
P4000129
P4000130
P4000131
P4000133
P4000134
P4000135
P40001001A
OIL PORT 6MM
GEAR 40T X 14MM
GEAR 28T
SET SCREW M6-1 X 10
3-JAW CHUCK 4"
3-JAW CHUCK KEY
3-JAW REVERSE JAWS 3PC SET
3-JAW INTERNAL 3-PC JAWS V2.03.07
4-JAW CHUCK 7-1/4"
4-JAW CHUCK KEY
DEAD CENTER MT#2
DEAD CENTER MT#3
FACEPLATE 7-1/2"
CHUCK BAR SHORT
CHUCK BAR LONG
BALL OILER 8MM PRESS-IN
LIVE CENTER MT#2
-56-
Model G4000 (Mfg. Since 8/09)
Drive Belt
237
238B
221 220
216
222
215
213
212
218A
217A
209
208
207
207
211
203
210
219A
232
234
235
204
205
202
227
231
206
201
226
225
224
239
228
223
230
229
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
201
202
203
204
205
206
207
208
209
210
211
212
213
215
216
217A
218A
219A
BRACKET PLATE
CAP SCREW M5-.8 X 20
IDLER PULLEY SHAFT
FLAT WASHER 10MM
LOCK WASHER 10MM
HEX NUT M10-1.5
BUSHING
EXT RETAINING RING 25MM
IDLER PULLEY WASHER
COMPRESSION SPRING
STEEL BALL
IDLER PULLEY
CLUTCH HUB
EXT RETAINING RING 12MM
OIL PORT
SPACER - CHINA MOTOR
COLLAR - CHINA MOTOR
MOTOR PULLEY - CHINA MOTOR
220
221
222
223
224
225
226
227
228
229
230
231
232
234
235
237
238B
239
MOTOR PULLEY WASHER
LOCK WASHER 6MM
CAP SCREW M6-1 X 25
COVER PLATE
CAP SCREW M5-.8 X 12
FLAT WASHER 5MM
CAP SCREW M5-.8 X 8
CHANGE GEAR COVER W/HINGE
CAP SCREW M4-.7 X 10
FLAT WASHER 6MM
CAP SCREW M6-1 X 10
CAP SCREW M6-1 X 25
FLAT WASHER 6MM
CAP SCREW M6-1 X 20
CLAMP BLOCK
V-BELT 5 X 710MM
TOOTH BELT 170 X L050 CHINA
CONFIGURATION PLATE
P4000201
P4000202
P4000203
P4000204
P4000205
P4000206
P4000207
P4000208
P4000209
P4000210
P4000211
P4000212
P4000213
P4000215
P4000216
P4000217A
P4000218A
P4000219A
Model G4000 (Mfg. Since 8/09)
P4000220
P4000221
P4000222
P4000223
P4000224
P4000225
P4000226
P4000227
P4000228
P4000229
P4000230
P4000231
P4000232
P4000234
P4000235
P4000237
P4000238B
P4000239
-57-
Belt Tension Lever
324
323
309
322
308
306
305
303
312
313
316A
310
311
319
314
320
315A
321
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
303
305
306
308
309
310
311
312
313
LEVER BRACKET ASSEMBLY
BALL BEARING 6001ZZ
ROLLER
EXT RETAINING RING 12MM
INT RETAINING RING 28MM
FLAT WASHER 10MM
HEX NUT M10-1.5
SPRING RING
TENSION SPRING
314
315A
316A
319
320
321
322
323
324
STUD BOLT
TENSIONING CAM V2.08.07
CAP SCREW M6-1 X 25
SET SCREW M8-1.25 X 8
WAVY WASHER
EXT RETAINING RING 34MM
BELT TENSION LEVER
EXTENSION ROD
KNOB
-58-
P4000303
P4000305
P4000306
P4000308
P4000309
P4000310
P4000311
P4000312
P4000313
P4000314
P4000315A
P4000316A
P4000319
P4000320
P4000321
P4000322
P4000323
P4000324
Model G4000 (Mfg. Since 8/09)
Change Gears
408
404
407
409
406
401
405
403
402
415
414
410
413
418
412
419
420
405
411
421
422
423
416
417
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
401
402
403
404
405
406
407
408
409
410
411
412
BRACKET
T-NUT M6-1
FLAT WASHER 6MM
SHAFT
KEYED BUSHING
GEAR 127T
GEAR 120T
SHAFT RETAINING CLIP
OIL PORT 6MM
FLAT WASHER 10MM
ROLL PIN 4 X 14
GEAR 30T
413
414
415
416
417
418
419
420
421
422
423
SPACER
FLAT WASHER 6MM
CAP SCREW M6-1 X 10
LOCK WASHER 6MM
CAP SCREW M6-1 X 35
GEAR 28T
GEAR 36T
GEAR 42T
GEAR 45T
GEAR 60T
GEAR 80T
P4000401
P4000402
P4000403
P4000404
P4000405
P4000406
P4000407
P4000408
P4000409
P4000410
P4000411
P4000412
Model G4000 (Mfg. Since 8/09)
P4000413
P4000414
P4000415
P4000416
P4000417
P4000418
P4000419
P4000420
P4000421
P4000422
P4000423
-59-
Electrical & Tools
1316
945
510
1319
508
512
504
520 521
522
525
523
524
518
519
936
509
937
515
507
506B
516
511-1
1316A
517
514
506C
511-3
513
501
511-2
511
502
503
526
527
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
501
502
503
504
506B
506C
507
508
509
510
511
511-1
511-2
511-3
512
513
514
515
P4000501
P4000502
P4000503
P4000504
P4000506B
P4000506C
P4000507
P4000508
P4000509
P4000510
P4000511
P4000511-1
P4000511-2
P4000511-3
P4000512
P4000513
P4000514
P4000515
ELECTRICAL BOX
CAP SCREW M5-.8 X 10
LOCK WASHER 6MM
ELECTRICAL BOX COVER
R CAPACITOR 20M 400V 1-5/8 X 2-7/8
S CAPACITOR 100M 250V 1-5/8 X 3-1/8
STRAIN RELIEF NUT M16-1
STRAIN RELIEF M16
SPINDLE SWITCH
PHLP HD SCR M5-.8 X 10
MOTOR 3/4HP 110V 60HZ
MOTOR FAN COVER
MOTOR FAN
TERMINAL COVER
LOCK WASHER 5MM
HEX NUT M4-.7
PHLP HD SCR M4-.7 X 8
CAPACITOR COVER W/CAP
516
517
518
519
520
521
522
523
524
525
526
527
936
937
945
1316
1316A
1319
P4000516
P4000517
P4000518
P4000519
P4000520
P4000521
P4000522
P4000523
P4000524
P4000525
P4000526
P4000527
P4000936
P4000937
P4000945
P40001316
P40001316A
P40001319
PHLP HD SCR M4-.7 X 6
CAPACITOR CLIP
WRENCH 8/10MM
WRENCH 12/14MM
HEX WRENCH 1.5MM
HEX WRENCH 2MM
HEX WRENCH 4MM
HEX WRENCH 5MM
HEX WRENCH 6MM
PHLP HD SCR M4-.7 X 16
STRAIN RELIEF NUT M24-1.5
STRAIN RELIEF M24
SCREWDRIVER FLAT #2
SCREWDRIVER PHILLIPS #2
POWER CORD 16/3/110V
TOOL BOX
COMPLETE TOOL BOX
OIL BOTTLE
-60-
Model G4000 (Mfg. Since 8/09)
Quick Change Gears
605
607
609
611
613
612
610
642
603
647
602
631
646
604
601
606
608
643
624
623
616
623 638
646
639
645
632
614
615
635
640
636
624
633
634
631
641
630
617
618
637
619
620
621
622
629
628
644
627
625
626
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
GEARBOX CASTING
SHAFT
KEY 5 X 5 X 70
BUSHING
GEAR 28T
GEAR 26T
GEAR 24T
GEAR 23T
GEAR 22T
GEAR 20T
GEAR 19T
GEAR 18T
GEAR 16T
BUSHING
EXT RETAINING RING 16MM
SHAFT
KEY 5 X 5 X 12
GEAR 16T
SHIFT ARM
SHAFT
GEAR 36T
SET SCREW M5-.8 X 10
EXT RETAINING RING 15MM
BALL BEARING 6202ZZ
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
PLUNGER
COMPRESSION SPRING
BUSHING
KNURLED KNOB
ACORN NUT M6-1
GEARBOX FRONT COVER
CAP SCREW M6-1 X 16
ROLL PIN 4 X 22
BRACKET
CAP SCREW M6-1 X 10
FLAT WASHER 10MM
BUSHING
ROLL PIN 4 X 14
NUMBER PLATE
COPPER FLUTED RIVET 2 X 5MM
CAP SCREW M8-1.25 X 20
LOCK WASHER 8MM
OIL CUP
BEARING CAP
HEX NUT M6-1
SET SCREW M4-.7 X 16
TAP-IN BALL OILER 6MM
ROLL PIN 4 X 12
P4000601
P4000602
P4000603
P4000604
P4000605
P4000606
P4000607
P4000608
P4000609
P4000610
P4000611
P4000612
P4000613
P4000614
P4000615
P4000616
P4000617
P4000618
P4000619
P4000620
P4000621
P4000622
P4000623
P4000624
Model G4000 (Mfg. Since 8/09)
P4000625
P4000626
P4000627
P4000628
P4000629
P4000630
P4000631
P4000632
P4000633
P4000634
P4000635
P4000636
P4000637
P4000638
P4000639
P4000640
P4000641
P4000642
P4000643
P4000644
P4000645
P4000646
P4000647
-61-
Apron Breakdown
735
Front View
715
717
704
716
714
703
726
713
725
727
781
782
707
708
709
724
730 769
712
780
721
770
710
711
713
701
720
722
728
771
772
714
718
707
729
719
723
767
768
732
731
733
734
777
778
Rear View
776
739
779
737
753A
760
759
755
738
729
740
756
762
761
753
742
746
763
754
757
758
743
744
741
747
745
752
743
747 766
707
748
765
764
749
750
751
-62-
Model G4000 (Mfg. Since 8/09)
Apron Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
701
703
704
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
737
738
739
740
741
742
APRON CASTING
WORM GEAR
KEY 3 X 3 X 25
HEX NUT M4-.7
SET SCREW M4-.7 X 12
STEEL BALL
COMPRESSION SPRING
HALF-NUT LEVER
SET SCREW M6-1 X 6
FLAT WASHER 6MM
FLAT HD SCR M6-1 X 8
GEAR SHAFT 12T
ROLL PIN 4 X 32
GEAR 43T
FEED LEVER
GEAR SHAFT 13T
BRACKET
COMPRESSION SPRING
SET SCREW M4-.7 X 10
CAP SCREW M6-1 X 30
GEAR SHAFT 43T
SHAFT
KEY 4 X 4 X 10
GEAR 41T
EXT RETAINING RING 14MM
OIL PORT 8MM
GEAR SHAFT 17T
HANDWHEEL
ROLL PIN 4 X 24
HANDLE SCREW
HANDLE
LEVER DIRECTION LABEL
GEAR SHAFT 18T
KEY 4 X 4 X 10
GEAR 42T
EXT RETAINING RING 12MM
HALF NUT SAE 16TPI 2PC
LOCKING CAM
743
744
745
746
747
748
749
750
751
752
753
753A
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
776
777
778
779
780
781
782
HALF-NUT GUIDE BAR
EXT RETAINING RING 8MM
CAP SCREW M4-.7 X 16
SET SCREW M5-.8 X 25
HEX NUT M5-.8
CONTROL BLOCK
JOINT PLATE
CAP SCREW M4-.7 X 20
CAP SCREW M5-.8 X 16
THREADED STUD M5-.8
THREAD DIAL BODY
THREAD DIAL BODY ASSEMBLY
WORM GEAR 64T
SHAFT
KEY 3 X 3 X 10
LOCK WASHER 8MM
HEX NUT M8-1.25
THREAD DIAL
THREAD DIAL SCREW
POINTER
COPPER FLUTED RIVET 2 X 4MM
CAP SCREW M6-1 X 60
APRON REAR COVER
CAP SCREW M5-.8 X 12
ROLL PIN 3 X 16
HANDWHEEL FLAT WASHER
HANDWHEEL CAP SCREW
PLATE
COPPER FLUTED RIVET 2 X 5MM
INDEX PLATE
GRADUATED DIAL
CAP SCREW M5-.8 X 10
FLAT WASHER 5MM
BUSHING
KEY 3 X 3 X 8
THREADED BALL OILER 6MM
BALL OILER SET SCREW
BALL OILER THIN HEX NUT
P4000701
P4000703
P4000704
P4000707
P4000708
P4000709
P4000710
P4000711
P4000712
P4000713
P4000714
P4000715
P4000716
P4000717
P4000718
P4000719
P4000720
P4000721
P4000722
P4000723
P4000724
P4000725
P4000726
P4000727
P4000728
P4000729
P4000730
P4000731
P4000732
P4000733
P4000734
P4000735
P4000737
P4000738
P4000739
P4000740
P4000741
P4000742
Model G4000 (Mfg. Since 8/09)
P4000743
P4000744
P4000745
P4000746
P4000747
P4000748
P4000749
P4000750
P4000751
P4000752
P4000753
P4000753A
P4000754
P4000755
P4000756
P4000757
P4000758
P4000759
P4000760
P4000761
P4000762
P4000763
P4000764
P4000765
P4000766
P4000767
P4000768
P4000769
P4000770
P4000771
P4000772
P4000776
P4000777
P4000778
P4000779
P4000780
P4000781
P4000782
-63-
Saddle & Cross Slide
819
818
802
820
821
822
823
803
809
804
808
806
807
805
824
811
813
840
841
801
814
815
825
817
812 810
826
834
835
816
839
831
836
838
832
829
837
833
833
830
828
827
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
SADDLE
CROSS SLIDE
CROSS SLIDE GIB
CROSS SLIDE LEADSCREW NUT
CROSS SLIDE LEADSCREW
BRACKET
CAP SCREW M5-.8 X 16
INDEX PLATE
COPPER FLUTED RIVET 2 X 4MM
GRADUATED DIAL
WOODRUFF KEY
SPRING PLATE
HANDWHEEL
SPECIAL HEX NUT
SET SCREW M8-1.25 X 6
HANDLE
SLIDE BLOCK
BUSHING
FLAT HD SCR M6-1 X 12
SET SCREW M6-1 X 12
GIB PIN
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
SET SCREW M4-.7 X 12
HEX NUT M4-.7
SADDLE GIB CLAMP
FLAT WASHER 6MM
CAP SCREW M6-1 X 16
CLIP
SET SCREW M6-1 X 20
HEX NUT M6-1
CAP SCREW M6-1 X 25
FRONT WAY WIPER
FRONT WIPER CLAMP
PHLP HD SCR M4-.7 X 6
REAR WAY WIPER
REAR WIPER CLAMP
OIL PORT 6MM
CAP SCREW M8-1.25 X 30
CAP SCREW M6-1 X 25
HANDLE SCREW
CHIP GUARD
TAP-IN BALL OILER 6MM
-64-
P4000801
P4000802
P4000803
P4000804
P4000805
P4000806
P4000807
P4000808
P4000809
P4000810
P4000811
P4000812
P4000813
P4000814
P4000815
P4000816
P4000817
P4000818
P4000819
P4000820
P4000821
P4000822
P4000823
P4000824
P4000825
P4000826
P4000827
P4000828
P4000829
P4000830
P4000831
P4000832
P4000833
P4000834
P4000835
P4000836
P4000837
P4000838
P4000839
P4000840
P4000841
Model G4000 (Mfg. Since 8/09)
Compound Slide
911
912
921
939
920
940
933
935
934
934-1
901
915
916
921
938
922
910
918
908
903
902
906
907 928
917
944
924A
932
904
929
923
926
909
919
913
927
925
905
930
931
914
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
COMPOUND SLIDE
SWIVEL BASE
COMPOUND SLIDE GIB
CLAMPING RING
GRADUATED DIAL
COMPOUND LEADSCREW NUT
ADJUSTING SCREW
TOOL POST STUD
CLAMPING RING T-BOLT
GIB PIN
TOOL POST NUT
HEX BOLT M8-1.25 X 30
CAP SCREW M5-.8 X 10
FLAT HD SCR M6-1 X 12
SET SCREW M4-.7 X 10
HEX NUT M4-.7
HEX NUT M6-1
ROLL PIN 3 X 8
ROLL PIN 3 X 14
C-STYLE TOOL CLAMP
921
922
923
924A
925
926
927
928
929
930
931
932
933
934
934-1
935
938
939
940
944
FLAT WASHER 8MM
COMPRESSION SPRING
COMPOUND SLIDE LEADSCREW
LEADSCREW MOUNT V2.02.07
GRADUATED DIAL
HANDWHEEL
HANDLE
KEY 3 X 13
DIAL POINTER
THREADED COLLAR
SET SCREW M8-1.25 X 6
ROLL PIN 3 X 12
C-STYLE TOOL BASE
TOOL POST PIN
PIN SPRING
4-WAY TOOL POST
CAP SCREW M8-1.25 X 30
LOCK HANDLE
TOOL POST LOCK NUT
FLAT WASHER 6MM
P4000901
P4000902
P4000903
P4000904
P4000905
P4000906
P4000907
P4000908
P4000909
P4000910
P4000911
P4000912
P4000913
P4000914
P4000915
P4000916
P4000917
P4000918
P4000919
P4000920
Model G4000 (Mfg. Since 8/09)
P4000921
P4000922
P4000923
P4000924A
P4000925
P4000926
P4000927
P4000928
P4000929
P4000930
P4000931
P4000932
P4000933
P4000934
P4000934-1
P4000935
P4000938
P4000939
P4000940
P4000944
-65-
Tailstock
1006
1007
1008
1001
1020
1002
1003
1017
1009
1012
1010
1005
1022
1011
1018
1024
1026
1019
1013
1015
1016
1014
1027 1019
1021
1023
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
1001
1002
1003
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
TAILSTOCK QUILL
TAILSTOCK LEADSCREW
BUSHING
HANDWHEEL
QUILL LOCK LEVER
CLAMP
SET SCREW M5-.8 X 10
GRADUATED DIAL
POINTER PLATE
HANDWHEEL NUT M8-1.25
TAILSTOCK BODY
TAILSTOCK BASE
SET SCREW M8-1.25 X 25
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1026
1027
HANDLE
HANDLE SCREW
KEY 3 X 13
SET SCREW M8-1.25 X 8
COPPER FLUTED RIVET 2 X 5MM
OIL PORT 6MM
CLAMPING PLATE
HEX NUT M8-1.25
TAILSTOCK CLAMP BOLT
FLAT WASHER 8MM
UPPER OFFSET PLATE V2.03.09
LOWER OFFSET PLATE V2.03.09
-66-
P40001001
P40001002
P40001003
P40001005
P40001006
P40001007
P40001008
P40001009
P40001010
P40001011
P40001012
P40001013
P40001014
P40001015
P40001016
P40001017
P40001018
P40001019
P40001020
P40001021
P40001022
P40001023
P40001024
P40001026
P40001027
Model G4000 (Mfg. Since 8/09)
Steady Rest
1101A
1106
1102
1104
1103
1105
1101
1105
1109
1107
1108
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
1101
1101A
1102
1103
1104
P40001101
P40001101A
P40001102
P40001103
P40001104
STEADY REST CASTING
STEADY REST ASSEMBLY
STEADY REST FINGERS 3 PC
SPECIAL SCREW
LOCK WASHER 8MM
1105
1106
1107
1108
1109
P40001105
P40001106
P40001107
P40001108
P40001109
HEX NUT M8-1.25
ADJUSTING SCREW
CLAMPING PLATE
HEX BOLT M8-1.25 X 60
FLAT WASHER 8MM
Model G4000 (Mfg. Since 8/09)
-67-
Follow Rest
1201V2
1204
1202
1201
1206
1203
1205
1207
1208
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
1201
1201V2
1202
1203
1204
P40001201
P40001201V2
P40001202
P40001203
P40001204
FOLLOW REST CASTING
FOLLOW REST ASSEMBLY V2.01.09
FOLLOW REST FINGER 2PC SET
SPECIAL SCREW
ADJUSTING SCREW
1205
1206
1207
1208
P40001205
P40001206
P40001207
P40001208
HEX NUT M8-1.25
FLAT WASHER 8MM
CAP SCREW M6-1 X 30
FLAT WASHER 6MM
-68-
Model G4000 (Mfg. Since 8/09)
Bed
1314
1313
1320
1312
1317
1317V2
1321
1311
1310
1322
1301
1302
1321
1320
1303
1323
1323
706
1305
1318
1307
1309
1306
1308
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
706
1301
1302
1303
1305
1306
1307
1308
1309
1310
1311
P4000706
P40001301
P40001302
P40001303
P40001305
P40001306
P40001307
P40001308
P40001309
P40001310
P40001311
LEADSCREW 9/16-16 x 25"
BED
RACK
CAP SCREW M4-.7 X 8
LEADSCREW BUSHING BLOCK
OIL PORT
CAP SCREW M6-1 X 20
HEX NUT M8-1.25
SET SCREW M8-1.25 X 6
THREADED STUD M8-1.25 X 28
HEX NUT M8-1.25
1312
1313
1314
1317
1317V2
1318
1320
1321
1322
1323
P40001312
P40001313
P40001314
P40001317
P40001317V2
P40001318
P40001320
P40001321
P40001322
P40001323
SET SCREW M6-1 X 25
FLAT WASHER 6MM
HEX NUT M6-1
CHIP SHIELD GREEN V1.06.97
CHIP SHIELD WHITE V2.01.08
CHIP PAN
FLAT WASHER 5MM
CAP SCREW M5-.8 X 10
FENDER WASHER 6MM
ROLL PIN 4 X 16
Model G4000 (Mfg. Since 8/09)
-69-
Label Placement
1351
On Back
of Electric
Cover
1353
1352
1354
1350
On Side of Change
Gear Cover
943
1357
1356
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
943
1350
1351
1352
THREAD DIAL CHART LABEL
PINCH HAZARD LABEL
MACHINE ID LABEL
TENSION LEVER NOTICE LABEL
1353
1354
1356
1357
ELECTRICITY LABEL
WARNINGS LABEL
GROUPED WARNINGS LABEL
GRIZZLY GREEN TOUCH-UP PAINT
P4000943
P40001350
P40001351
P40001352
P40001353
P40001354
P40001356
P40001357
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.
-70-
Model G4000 (Mfg. Since 8/09)
WARRANTY CARD
Name _____________________________________________________________________________
Street _____________________________________________________________________________
City _______________________ State _________________________ Zip _____________________
Phone # ____________________ Email _________________________________________________
Model # ____________________ Order # _______________________ Serial # __________________
The following information is given on a voluntary basis. It will be used for marketing purposes to help us develop
better products and services. Of course, all information is strictly confidential.
1.
CUT ALONG DOTTED LINE
2.
How did you learn about us?
____ Advertisement
____ Card Deck
4.
5.
6.
____ Catalog
____ Other:
Which of the following magazines do you subscribe to?
____
____
____
____
____
____
____
____
____
____
3.
____ Friend
____ Website
Cabinetmaker & FDM
Family Handyman
Hand Loader
Handy
Home Shop Machinist
Journal of Light Cont.
Live Steam
Model Airplane News
Old House Journal
Popular Mechanics
____
____
____
____
____
____
____
____
____
____
Popular Science
Popular Woodworking
Precision Shooter
Projects in Metal
RC Modeler
Rifle
Shop Notes
Shotgun News
Today’s Homeowner
Wood
____
____
____
____
____
____
____
Wooden Boat
Woodshop News
Woodsmith
Woodwork
Woodworker West
Woodworker’s Journal
Other:
What is your annual household income?
____ $20,000-$29,000
____ $30,000-$39,000
____ $50,000-$59,000
____ $60,000-$69,000
____ $40,000-$49,000
____ $70,000+
What is your age group?
____ 20-29
____ 50-59
____ 40-49
____ 70+
____ 30-39
____ 60-69
How long have you been a woodworker/metalworker?
____ 0-2 Years
____ 2-8 Years
____ 8-20 Years
____ 20+ Years
How many of your machines or tools are Grizzly?
____ 0-2
____ 3-5
____ 6-9
____ 10+
7.
Do you think your machine represents a good value?
_____ Yes
_____No
8.
Would you recommend Grizzly Industrial to a friend?
_____ Yes
_____No
9.
Would you allow us to use your name as a reference for Grizzly customers in your area?
Note: We never use names more than 3 times.
_____ Yes
_____No
10. Comments: _____________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
FOLD ALONG DOTTED LINE
Place
Stamp
Here
GRIZZLY INDUSTRIAL, INC.
P.O. BOX 2069
BELLINGHAM, WA 98227-2069
FOLD ALONG DOTTED LINE
Send a Grizzly Catalog to a friend:
Name_______________________________
Street_______________________________
City______________State______Zip______
TAPE ALONG EDGES--PLEASE DO NOT STAPLE
WARRANTY AND RETURNS
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.