Grizzly G0740 User Manual

MODEL G0740

14" X 40" HIGH-PRECISION

TOOLROOM LATHE

OWNER'S MANUAL

(For models manufactured since 11/12)

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

#BL15452 PRINTED IN TAIWA N

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 ............................................... 3

Machine Description ...................................... 3

Contact Info.................................................... 3

Manual Accuracy ........................................... 3

Identification ................................................... 4

Controls & Components ................................. 5

Two-Speed Motor Switch .................................... 5

Headstock ...........................................................5

Control Panel ...................................................... 6

Carriage .............................................................. 6

Tailstock .............................................................. 7

End Gears ........................................................... 7

Safety Foot Brake ............................................... 7

Machine Data Sheet ...................................... 8

SECTION 1: SAFETY ..................................... 11

Safety Instructions for Machinery ................ 11

Additional Safety for Metal Lathes ............... 13

Additional Chuck Safety ............................... 14

SECTION 2: POWER SUPPLY ...................... 15

Availability .........................................................15

Full-Load Current Rating .................................. 15

Circuit Requirements for 220V ..........................15

Grounding Instructions ...................................... 16

Extension Cords ................................................ 16

Correcting Phase Polarity Wiring ................. 17

SECTION 3: SETUP ....................................... 18

Preparation .................................................. 18

Unpacking .................................................... 18

Needed for Setup ......................................... 18

Inventory ...................................................... 19

Cleanup ........................................................ 20

Site Considerations ...................................... 21

Lifting & Moving ........................................... 22

Leveling & Mounting .................................... 23

Leveling ............................................................. 23

Bolting to Concrete Floors ................................24

Assembly ..................................................... 24

Lubricating Lathe ......................................... 24

Adding Coolant ............................................ 25

Power Connection........................................ 25

Test Run ...................................................... 26

Spindle Break-In .......................................... 29

Recommended Adjustments ........................ 30

SECTION 4: OPERATIONS ........................... 31

Operation Overview ..................................... 31

Chuck & Faceplate Mounting....................... 32

Installation & Removal Devices ................... 32

Chuck Installation......................................... 33

Registration Marks ............................................ 34

Chuck Removal............................................ 34

Scroll Chuck Clamping ................................ 35

Chuck Jaw Reversal .................................... 35

4-Jaw Chuck ................................................ 36

Faceplate ..................................................... 37

Tailstock ....................................................... 38

Positioning Tailstock ......................................... 38

Using Quill ......................................................... 38

Installing Tooling ............................................... 38

Removing Tooling ............................................. 39

Offsetting Tailstock ...........................................39

Aligning Tailstock to Spindle Centerline ...........40

Centers ........................................................ 42

Dead Centers .................................................... 42

Live Centers ...................................................... 42

Mounting Dead Center in Spindle ..................... 42

Removing Center from Spindle .........................43

Mounting Center in Tailstock ............................43

Removing Center from Tailstock ......................43

Mounting Workpiece Between Centers ............44

Steady Rest ................................................. 45

Follow Rest .................................................. 46

Carriage & Slide Locks ................................ 46

Compound Rest ........................................... 47

Four-Way Tool Post ..................................... 47

Installing Tool .................................................... 47

Aligning Cutting Tool with Spindle Centerline ... 48

Adjustable Feed Stop .................................. 49

Micrometer Stop........................................... 49

Manual Feed ................................................ 50

Carriage Handwheel ......................................... 50

Cross Slide Handwheel .................................... 50

Compound Rest Handwheel ............................. 50

Spindle Speed.............................................. 50

Determining Spindle Speed .............................. 50

Setting Spindle Speed ......................................51

Configuration Examples .................................... 51

Power Feed.................................................. 52

Power Feed Controls ........................................ 53

Setting Power Feed Rate ..................................54

End Gears .................................................... 55

Standard End Gear Configuration ....................55

Alternate Configuration ..................................... 56

Threading ..................................................... 57

Headstock Threading Controls .........................57

Apron Threading Controls ................................. 58

Thread Dial .......................................................58

Thread Dial Chart ............................................. 59

Chip Drawer ................................................. 60

Coolant System............................................ 61

SECTION 5: ACCESSORIES ......................... 62

SECTION 6: MAINTENANCE ......................... 64

Schedule ...................................................... 64

Ongoing ............................................................64

Daily, Before Operations ................................... 64

Daily, After Operations ...................................... 64

Monthly .............................................................64

Semi-Annually ................................................... 64

Annually ............................................................ 64

Cleaning/Protecting ...................................... 64

Lubrication ................................................... 65

Headstock ......................................................... 65

Quick-Change Gearbox .................................... 66

Apron ................................................................67

One-Shot Oiler .................................................. 67

Longitudinal Leadscrew .................................... 68

Ball Oilers & Oil Cup ......................................... 68

End Gears ......................................................... 69

Coolant System Service .............................. 70

Hazards ............................................................. 70

Adding Coolant .................................................71

Changing Coolant ............................................. 71

Machine Storage .......................................... 72

SECTION 7: SERVICE ................................... 73

Troubleshooting ........................................... 73

Motor & Electrical .............................................. 73

Lathe Operation ................................................ 74

Backlash Adjustment ................................... 76

Compound Rest ................................................ 76

Cross Slide ........................................................ 76

Leadscrew End Play Adjustment ................. 77

Gib Adjustment ............................................ 77

Half Nut Adjustment ..................................... 79

V-Belts ......................................................... 79

Brake & Switch ............................................ 80

Leadscrew Shear Pin Replacement ............ 82

Gap Insert Removal & Installation ............... 84

Gap Removal .................................................... 84

Gap Installation ................................................. 84

SECTION 8: WIRING ...................................... 85

Wiring Safety Instructions ............................ 85

Wiring Overview ........................................... 86

Component Location Index .......................... 87

Electrical Cabinet Wiring .............................. 88

Electrical Box ............................................... 89

Spindle Motor ............................................... 90

Coolant Pump Wiring ................................... 90

2-Speed Motor Switch ................................. 91

Control Panel Wiring .................................... 92

Spindle Switches.......................................... 92

Additional Component Wiring ...................... 93

Power Connection........................................ 93

SECTION 9: PARTS ....................................... 94

Headstock Cover ......................................... 94

Headstock Controls...................................... 95

Headstock Internal Gears ............................ 97

Headstock Transfer Gears ........................... 99

Gearbox Gears .......................................... 100

Gearbox Controls ....................................... 102

Apron Front View ....................................... 104

Apron Rear View ........................................ 106

Compound Rest & Tool Post ..................... 108

Saddle Top View ........................................ 109

Saddle Bottom View .................................. 111

Bed Stop .................................................... 112

Dial Indicator .............................................. 112

Bed & Shafts .............................................. 113

End Gears .................................................. 115

Main Motor ................................................. 116

Cabinets & Panels ..................................... 118

Tailstock ..................................................... 120

Steady Rest ............................................... 122

Follow Rest ................................................ 122

Electrical Cabinet & Control Panel ............ 123

Accessories ................................................ 124

Front Machine Labels ................................ 125

Rear & Side Machine Labels ..................... 126

WARRANTY & RETURNS ........................... 129

INTRODUCTION

We are proud to provide a high-quality owner’s manual with your new machine!

instructions, specifications, drawings, and photographs contained inside. Sometimes we make mistakes, but

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Manufacture Date

stamped into the machine ID label (see below). This information helps us determine if updated documentation is available for your machine.

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Machine Description

The Model G0740 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.

This lathe has 16 available spindle speeds and powered feed for the carriage and cross slide. The use of the cutting fluid system and spindle brake is optional.

Typical cutting operations for a metal lathe 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.

Contact Info

Manual Accuracy

made every effort to be exact with the

our policy of continuous improvement

sometimes the machine

, check our website

e post current

manual updates for free on our website at

and Serial Number

Grizzly Technical Support

1203 Lycoming Mall Circle

Muncy, PA 17756

Phone: (570) 546-9663

Email: techsupport@grizzly.com

Grizzly Documentation Manager

P.O. Box 2069

Bellingham, WA 98227-2069

Email: manuals@grizzly.com

Manufacture Date

Serial Number

Model G0740 (Mfg. Since 11/12)

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Identification

A. Headstock B. D1-5 Camlock MT#5 Spindle C. 3-Jaw Chuck 8" D. Chuck Guard w/Safety Switch E. Steady Rest F. Halogen Work Lamp G. Follow Rest H. 4-Way Tool Post I. Compound Rest J. Coolant Nozzle & Valve K. Tailstock (see Page 7 for details)

Serious personal injury could occur if you connect the machine to power before completing the setup process. DO NOT connect power until instructed to do so later in this manual.

Figure 1. Identification.

L. Longitudinal Leadscrew M. Feed Rod N. Coolant Reservoir & Pump Access O. Carriage (see Page 6 for details) P. Safety Foot Brake Q. Chip Drawer R. Micrometer Stop S. Stop Collar T. Two-Speed Motor Switch U. Quick-Change Gearbox V. Headstock Controls (see Page 5 for details)

Untrained users have an increased risk of seriously injuring themselves with this machine. Do not operate this machine until you have understood this entire manual and received proper training.

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Model G0740 (Mfg. Since 11/12)

Controls &

Components

Refer to Figures 2–6 and the following descriptions to become familiar with the basic controls of this lathe.

Two-Speed Motor Switch

Two-Speed

Motor Switch

A. Spindle Range Lever: Selects the speed

range on the left (high) or right (low) spindle speed chart to be active.

B. Spindle Speed Charts: Display the arrange-

ment of the spindle range and spindle speed levers for each of the 16 spindle speeds. The two-speed motor switch enables the available speeds from the high or low spindle speed chart.

C. Spindle Speed Lever: Selects one of the four

available spindle speeds within the selected speed range.

D. Threading and Feed Charts: Displays the

necessary configuration of the gearbox levers and end gears for different threading or feeding options.

E. Gearbox Range Lever: Shifts the quick-

change gearbox into low range, neutral, or high range.

Figure 2. Location of the two-speed motor

switch.

The two-speed motor switch has three positions:

• Low (left position), enables speeds in the right headstock spindle speed chart

• OFF (middle position)

• High (right position), enables speeds in the left headstock spindle speed chart

Headstock

F. Headstock Feed Direction Lever: Controls

the direction that the leadscrew and feed rod rotate.

G. Quick-Change Gearbox Levers: Control the

leadscrew and feed rod speed for threading and feed operations.

Figure 3. Headstock controls.

Model G0740 (Mfg. Since 11/12)

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Control Panel

N. Coolant Flow Control Lever: Controls the

flow of coolant from the nozzle.

O. One-Shot Oiler: Draws oil from the apron res-

ervoir to lubricate the carriage ways through

various oil ports.

P. Carriage Lock: Secures the carriage in place

for greater rigidity when it should not move.

Figure 4. Control panel.

H. Coolant Pump Switch: Controls the coolant

pump motor.

I. Power Light: Illuminates when lathe controls

are receiving power.

J. STOP Button: Stops all machine functions.

Twist clockwise to reset.

K. Jog Button: Starts forward spindle rotation

as long as it is pressed.

Carriage

Q . Thread Dial and Chart: Dial indicates when

to engage the half nut during threading operations. Chart indicates on which thread dial reading to engage the half nut for specific inch thread pitches.

R. Spindle Lever: Starts, stops and reverses

direction of spindle rotation.

S . Half Nut Lever: Engages/disengages the

half nut for threading operations.

T. Apron Feed Direction Knob: Changes direc-

tion of the carriage or the cross slide feed without having to stop the lathe and move the headstock feed direction lever.

U. Feed Selection Lever: Selects the carriage

or cross slide for power feed.

V. Carriage Handwheel: Moves the carriage

along the bed.

W. Apron: Houses the carriage gearing.

L. 4-Way Tool Post: Mounts up to four cutting

tools at once that can be individually indexed to the workpiece.

M. Compound Rest Handwheel: Moves the

tool toward and away from the workpiece at the preset angle of the compound rest.

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Figure 5. Carriage controls.

X. Cross Slide Handwheel: Moves the cross

slide toward and away from the workpiece.

Model G0740 (Mfg. Since 11/12)

Tailstock End Gears

Figure 6. Tailstock controls.

Y. Quill Handwheel: Moves the quill toward or

away from the spindle.

Z. Graduated Scale: Indicates quill movement

in increments of 0.001" with one full revolution equaling 0.100" of quill travel.

AA. Tailstock Lock Lever: Secures the tailstock

in position along the bedway.

End

Gears

Figure 7. End gear components.

Configuring the end gears shown in Figure 7 will control the speed of the leadscrew for threading or the feed rod for power feed operations. The rotational speed of these components depends not only on the end gear configuration, but the spindle speed as well.

Safety Foot Brake

AB. Quill Lock Lever: Secures the quill in posi-

tion.

AC. Quill: Moves toward and away from the

spindle and holds centers and tooling.

AD. Tailstock Offset Screw: Adjusts the tailstock

offset left or right from the spindle centerline (1 of 2).

AE. Gib Adjustment Screw: Adjusts the tapered

gib to control tailstock offset accuracy (1 of 2).

AF. Offset Scale: Indicates the relative distance

of tailstock offset from the spindle centerline.

Spindle

Lever

Foot Brake

Figure 8. Foot brake and spindle lever.

This lathe is equipped with a foot brake (see Figure 8) to quickly stop the spindle instead of allowing the spindle to coast to a stop on its own. Pushing the foot brake while the spindle is ON cuts power to the motor and stops the spindle.

After the foot brake is used, the spindle lever must be returned to the OFF (middle) position to reset the spindle switches before re-starting spindle rotation.

Model G0740 (Mfg. Since 11/12)

-7-

Machine Data Sheet

MACHINE DATA

SHEET

Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901

MODEL G0740 14" X 40" 3-PHASE HIGH PRECISION

TOOLROOM METAL LATHE

Product Dimensions:

Weight............................................................................................................................................................ 2420 lbs.

Width (side-to-side) x Depth (front-to-back) x Height........................................................ 80-3/4 x 32-1/8 x 54-3/8 in.

Footprint (Length x Width)............................................................................................................... 80-3/4 x 19-1/2 in.

Shipping Dimensions:

Type................................................................................................................................................... Wood Slat Crate

Content........................................................................................................................................................... Machine

Weight............................................................................................................................................................ 2684 lbs.

Length x Width x Height....................................................................................................................... 90 x 40 x 69 in.

Electrical:

Power Requirement.................................................................................................................. 220V, 3-Phase, 60 HZ

Full-Load Current Rating..................................................................................................................................... 14.4A

Minimum Circuit Size.............................................................................................................................................. 20A

Switch...................................................................................................................... Magnetic with Thermal Protection

Switch Voltage..................................................................................................................................................... 220V

Plug Included........................................................................................................................................................... No

Recommended Plug/Outlet Type............................................................................................................. NEMA 15-20

Motors:

Main

Type........................................................................................................................................... TEFC Induction

Horsepower....................................................................................... 5 HP at 3450 RPM, 2.5 HP at 1725 RPM

Voltage....................................................................................................................................................... 220V

Phase.................................................................................................................................................... 3-Phase

Amps..................................................................................................................................................... 14A/10A

Speed....................................................................................................................................... 3450/1725 RPM

Cycle......................................................................................................................................................... 60 Hz

Number of Speeds............................................................................................................................................ 2

Power Transfer ............................................................................................................................ V-Belt & Gear

Bearings....................................................................................................... Shielded and Permanently Sealed

Coolant

Type........................................................................................................................................... TEFC Induction

Horsepower............................................................................................................................................. 1/8 HP

Voltage....................................................................................................................................................... 220V

Phase.................................................................................................................................................... 3-Phase

Amps........................................................................................................................................................... 0.4A

Cycle......................................................................................................................................................... 60 Hz

Number of Speeds............................................................................................................................................ 1

Power Transfer ............................................................................................................................... Direct Drive

Bearings....................................................................................................... Shielded and Permanently Sealed

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Model G0740 (Mfg. Since 11/12)

Main Specifications:

Paint..................................................................................................................................................... Urethane

Operation Info

Swing Over Bed.................................................................................................................................... 14.17 in.

Distance Between Centers........................................................................................................................ 40 in.

Swing Over Cross Slide.......................................................................................................................... 8.66 in.

Swing Over Saddle............................................................................................................................... 13.75 in.

Swing Over Gap................................................................................................................................... 20.94 in.

Maximum Tool Bit Size........................................................................................................................... 0.75 in.

Compound Travel........................................................................................................................................ 4 in.

Carriage Travel....................................................................................................................................... 36.5 in.

Cross Slide Travel....................................................................................................................................... 7 in.

Headstock Info

Spindle Bore......................................................................................................................................... 1.653 in.

Spindle Taper............................................................................................................................................ MT#5

Number of Spindle Speeds............................................................................................................................. 16

Spindle Speeds......................................................................................................................... 50 – 2570 RPM

Spindle Type................................................................................................................................ D1-5 Camlock

Spindle Bearings................................................................................................................ NTN Tapered Roller

Spindle Length...................................................................................................................................... 20.87 in.

Spindle Length with 3-Jaw Chuck......................................................................................................... 28.74 in.

Spindle Length with 4-Jaw Chuck......................................................................................................... 30.71 in.

Tailstock Info

Tailstock Quill Travel............................................................................................................................. 4-3/8 in.

Tailstock Taper.......................................................................................................................................... MT#3

Tailstock Barrel Diameter..................................................................................................................... 1.968 in.

Threading Info

Number of Longitudinal Feeds....................................................................................................................... 17

Range of Longitudinal Feeds................................................................................................... 0.002 – 0.067 in.

Number of Cross Feeds................................................................................................................................. 17

Range of Cross Feeds............................................................................................................. 0.001 – 0.034 in.

Number of Inch Threads................................................................................................................................. 45

Range of Inch Threads...................................................................................................................... 2 – 72 TPI

Number of Metric Threads.............................................................................................................................. 39

Range of Metric Threads................................................................................................................ 0.2 – 14 mm

Number of Modular Pitches............................................................................................................................ 18

Range of Modular Pitches.............................................................................................................. 0.3 – 3.5 MP

Number of Diametral Pitches.......................................................................................................................... 21

Range of Diametral Pitches................................................................................................................ 8 – 44 DP

Dimensions

Bed Width.................................................................................................................................................... 9 in.

Leadscrew Diameter.............................................................................................................................. 1-1/8 in.

Leadscrew TPI.................................................................................................................................................. 4

Leadscrew Length..................................................................................................................................... 59 in.

Steady Rest Capacity............................................................................................................... 5/16 – 4-5/16 in.

Follow Rest Capacity.................................................................................................................... 5/8 – 3-1/8 in.

Faceplate Size........................................................................................................................................... 10 in.

Feed Rod Diameter.................................................................................................................................. 3/4 in.

Floor to Center Height......................................................................................................................... 42-5/8 in.

Height With Leveling Jacks................................................................................................................. 54-3/8 in.

Construction

Base..................................................................................................................................................... Cast Iron

Headstock............................................................................................................................................ Cast Iron

Headstock Gears............................................................................................................ Flame Hardened Steel

Bed.................................................................................................. Induction Hardened and Ground Cast Iron

Stand.................................................................................................................................................... Cast Iron

Model G0740 (Mfg. Since 11/12)

-9-

Other Specifications:

Country Of Origin ............................................................................................................................................. Taiwan

Warranty ........................................................................................................................................................... 1 Year

Serial Number Location ............................................................................................. ID Label on Front of Headstock

Customer Assembly & Setup Time ................................................................................................................. 2 Hours

Sound Rating ..................................................................................................................................................... 76 dB

Features:

Hardened & Precision-Ground Bed with Meehanite Castings Halogen Work Light (24V/70W) 4-Way Tool Post Complete Coolant System Micrometer Carriage Stop Threading Dial Indicator Full Length Splash Guard Front Removable Sliding Chip Tray Headstock Gears Run in an Oil Bath Jog Button and Emergency Stop Safety Chip Guard Completely Enclosed Universal Gearbox for Cutting Inch, Metric, Modular and Diametral Pitches

Accessories Included:

#5 to #3 Morse Taper Spindle Sleeve 10 in. 4-Jaw Independent Chuck D1-5 10 in. Faceplate D1-5 8 in. 3-Jaw Scroll Chuck D1-5 Follow Rest Service Tools Six Leveling Pads Steady Rest with Roller Bearing Tips Tool Box Two Morse Taper #3 Dead Centers (1 Carbon Steel and 1 Carbide-Tipped)

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Model G0740 (Mfg. Since 11/12)

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.

This symbol is used to alert the user to useful information about

NOTICE

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.

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. nect 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.

Always discon-

Model G0740 (Mfg. Since 11/12)

-11-

WEARING PROPER APPAREL. Do not wear clothing, apparel or jewelry that can become entangled in moving parts. Always tie back or cover long hair. Wear non-slip footwear to avoid accidental slips, which could cause loss of workpiece control.

HAZARDOUS DUST. Dust created while using machinery may cause cancer, birth defects, or long-term respiratory damage. Be aware of dust hazards associated with each workpiece material, and always wear a NIOSH-approved respirator to reduce your risk.

HEARING PROTECTION. Always wear hearing protection when operating or observing loud machinery. Extended exposure to this noise without hearing protection can cause permanent hearing loss.

REMOVE ADJUSTING TOOLS. Tools left on machinery can become dangerous projectiles upon startup. Never leave chuck keys, wrenches, or any other tools on machine. Always verify removal before starting!

INTENDED USAGE. Only use machine for its intended purpose and never make modifications not approved by Grizzly. Modifying machine or using it differently than intended may result in malfunction or mechanical failure that can lead to serious personal injury or death!

AWKWARD POSITIONS. Keep proper footing and balance at all times when operating machine. Do not overreach! Avoid awkward hand positions that make workpiece control difficult or increase the risk of accidental injury.

CHILDREN & BYSTANDERS. Keep children and bystanders at a safe distance from the work area. Stop using machine if they become a distraction.

FORCING MACHINERY. Do not force machine. It will do the job safer and better at the rate for which it was designed.

NEVER STAND ON MACHINE. Serious injury may occur if machine is tipped or if the cutting tool is unintentionally contacted.

STABLE MACHINE. Unexpected movement during operation greatly increases risk of injury or loss of control. Before starting, verify machine is stable and mobile base (if used) is locked.

USE RECOMMENDED ACCESSORIES. Consult this owner’s manual or the manufacturer for recommended accessories. Using improper accessories will increase the risk of serious injury.

UNATTENDED OPERATION. To reduce the risk of accidental injury, turn machine OFF and ensure all moving parts completely stop before walking away. Never leave machine running while unattended.

MAINTAIN WITH CARE. Follow all maintenance instructions and lubrication schedules to keep machine in good working condition. A machine that is improperly maintained could malfunction, leading to serious personal injury or death.

CHECK DAMAGED PARTS. Regularly inspect machine for any condition that may affect safe operation. Immediately repair or replace damaged or mis-adjusted parts before operating machine.

MAINTAIN POWER CORDS. When disconnecting cord-connected machines from power, grab and pull the plug—NOT the cord. Pulling the cord may damage the wires inside. Do not handle cord/plug with wet hands. Avoid cord damage by keeping it away from heated surfaces, high traffic areas, harsh chemicals, and wet/damp locations.

GUARDS & COVERS. Guards and covers reduce accidental contact with moving parts or flying debris. Make sure they are properly installed, undamaged, and working correctly.

-12-

EXPERIENCING DIFFICULTIES. If at any time you experience difficulties performing the intended operation, stop using the machine! Contact our Technical Support at (570) 546-9663.

Model G0740 (Mfg. Since 11/12)

Additional Safety for Metal Lathes

Never attempt to slow or stop the lathe spindle with

SPEED RATES. Operating the lathe at the wrong speed can cause nearby parts to break or the workpiece to come loose, which will result in dangerous projectiles that could cause severe impact injuries. Large or non-concentric workpieces must be turned at slow speeds. Always use the appropriate feed and speed rates.

CHUCK KEY SAFETY. A chuck key left in the chuck can become a deadly projectile when the spindle is started. Always remove the chuck key after using it. Develop a habit of not taking your hand off of a chuck key unless it is away from the machine.

SAFE CLEARANCES. Workpieces that crash into other components on the lathe may throw dangerous projectiles in all directions, leading to impact injury and damaged equipment. Before starting the spindle, make sure the workpiece has adequate clearance by hand-rotating it through its entire range of motion. Also, check the tool and tool post clearance, chuck clearance, and saddle clearance.

LONG STOCK SAFETY. Long stock can whip violently if not properly supported, causing serious impact injury and damage to the lathe. Reduce this risk by supporting any stock that extends from the chuck/headstock more than three times its own diameter. Always turn long stock at slow speeds.

SECURING WORKPIECE. An improperly secured workpiece can fly off the lathe spindle with deadly force, which can result in a severe impact injury. Make sure the workpiece is properly secured in the chuck or faceplate before starting the lathe.

CHUCKS. Chucks are very heavy and difficult to grasp, which can lead to crushed fingers or hands if mishandled. Get assistance when handling chucks to reduce this risk. Protect your hands and the precision-ground ways by using a chuck cradle or piece of plywood over the ways of the lathe when servicing chucks. Use lifting devices when necessary.

CLEARING CHIPS. Metal chips can easily cut bare skin—even through a piece of cloth. Avoid clearing chips by hand or with a rag. Use a brush or vacuum to clear metal chips.

STOPPING SPINDLE BY HAND. Stopping the spindle by putting your hand on the workpiece or chuck creates an extreme risk of entanglement, impact, crushing, friction, or cutting hazards.

your hand. Allow the spindle to come to a stop on its own or use the brake.

CRASHES. Aggressively driving the cutting tool or other lathe components into the chuck may cause an explosion of metal fragments, which can result in severe impact injuries and major damage to the lathe. Reduce this risk by releasing automatic feeds after use, not leaving lathe unattended, and checking clearances before starting the lathe. Make sure no part of the tool, tool holder, compound rest, cross slide, or carriage will contact the chuck during operation.

COOLANT SAFETY. Coolant is a very poisonous biohazard that can cause personal injury from skin contact alone. Incorrectly positioned coolant nozzles can splash on the operator or the floor, resulting in an exposure or slipping hazard. To decrease your risk, change coolant regularly and position the nozzle where it will not splash or end up on the floor.

TOOL SELECTION. Cutting with an incorrect or dull tool increases the risk of accidental injury due to the extra force required for the operation, which increases the risk of breaking or dislodging components that can cause small shards of metal to become dangerous projectiles. Always select the right cutter for the job and make sure it is sharp. A correct, sharp tool decreases strain and provides a better finish.

Model G0740 (Mfg. Since 11/12)

-13-

Additional Chuck Safety

ENTANGLEMENT. Entanglement with a rotat-

ing chuck can lead to death, amputation, broken bones, or other serious injury. Never attempt to slow or stop the lathe chuck by hand, and always roll up long sleeves, tie back long hair, and remove any jewelry or loose apparel BEFORE operating.

CHUCK SPEED RATING. Excessive spindle speeds greatly increase the risk of the workpiece or chuck being thrown from the machine with deadly force. Never use spindle speeds faster than the chuck RPM rating or the safe limits of your workpiece.

USING CORRECT EQUIPMENT. Many workpieces can only be safely turned in a lathe if additional support equipment, such as a tailstock or steady/ follow rest, is used. If the operation is too hazardous to be completed with the lathe or existing equipment, the operator must have enough experience to know when to use a different machine or find a safer way.

TRAINED OPERATORS ONLY. Using a chuck incorrectly can result in workpieces coming loose at high speeds and striking the operator or bystanders with deadly force. To reduce the risk of this hazard, read and understand this document and seek additional training from an experienced chuck user before using a chuck.

CHUCK CAPACITY. Avoid exceeding the capacity of the chuck by clamping an oversized workpiece. If the workpiece is too large to safely clamp with the chuck, use a faceplate or a larger chuck if possible. Otherwise, the workpiece could be thrown from the lathe during operation, resulting in serious impact injury or death.

CLAMPING FORCE. Inadequate clamping force can lead to the workpiece being thrown from the chuck and striking the operator or bystanders. Maximum clamping force is achieved when the chuck is properly maintained and lubricated, all jaws are fully engaged with the workpiece, and the maximum chuck clamping diameter is not exceeded.

PROPER MAINTENANCE. All chucks must be properly maintained and lubricated to achieve maximum clamping force and withstand the rigors of centrifugal force. To reduce the risk of a thrown workpiece, follow all maintenance intervals and instructions in this document.

DISCONNECT POWER. Serious entanglement or impact injuries could occur if the lathe is started while you are adjusting, servicing, or installing the chuck. Always disconnect the lathe from power before performing these procedures.

-14-

Model G0740 (Mfg. Since 11/12)

SECTION 2: POWER SUPPLY

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

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.

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 requirements in the following section.

This machine is prewired to operate on a 220V power supply circuit that has a verified ground and meets the following requirements:

For your own safety and protection of

Note: The circuit requirements listed in this manual apply to a dedicated circuit—where only one machine will be running at a time. If this machine will be connected to a shared circuit where multiple machines will be running at the same time, consult a qualified electrician to ensure that the circuit is properly sized for safe operation.

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.)

Availability

supply.

Full-Load Current Rating

Circuit Requirements for 220V

Nominal Voltage ........................................220V

Cycle .......................................................... 60 Hz

Phase .................................................... 3-Phase

Power Supply Circuit ......................... 20 Amps

Plug/Receptacle ........................... NEMA 15-20

Cord ........“S ”-Type, 4-Wire, 12 AWG, 30 0 VAC

Full-Load Current Rating at 220V .. 14.4 Amps

Model G0740 (Mfg. Since 11/12)

property, consult an electrician if you are unsure about wiring practices or electrical codes in your area.

-15-

We do not recommend using an extension cord with this machine. cord, only use it if absolutely necessary and only on a temporary basis.

Extension cords cause voltage drop, which may damage electrical components and shorten motor life. Voltage drop increases as the extension cord size gets longer and the gauge size gets smaller (higher gauge numbers indicate smaller sizes).

Any extension cord used with this machine must contain a ground wire, match the required plug and receptacle, and meet the following requirements:

Grounding Instructions

This machine MUST be grounded. In the event of certain malfunctions or breakdowns, grounding reduces the risk of electric shock by providing a path of least resistance for electric current.

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.

Serious injury could occur if you connect

The power cord and plug specified under “Circuit Requirements for 220V” has an equipment-grounding wire and a grounding prong. The plug must only be inserted into a matching receptacle (outlet) that is properly installed and grounded in accordance with all local codes and ordinances (see figure below).

No adapter should be used with the required plug. If the plug does not fit the available receptacle, or the machine must

on the previous page

Grounded Outlet Box

Serious injury could occur if you connect the machine to power before completing the setup process. DO NOT connect to power until instructed later in this manual.

Current Carrying Blades

Grounding Pin

Figure 9. Typical 15-20 plug and receptacle.

the machine to power before completing the setup process. DO NOT connect to power until instructed later in this manual.

be reconnected for use on a different type of circuit, the reconnection must be made by a qualified electrician and comply with all local codes and ordinances.

-16 -

Extension Cords

If you must use an extension

Minimum Gauge Size ...........................12 AWG

Maximum Length (Shorter is Better).......50 ft.

Model G0740 (Mfg. Since 11/12)

Correcting Phase

U1 V1 W1 E 0 2 3

Ground

4 5 6 7 8

E 0

4 5

66778

4 5 6 7 8

W1V1

0 4 6322

2. Open the electrical box and swap any two hot wires R, S, T, as illustrated in Figure 10.

Polarity Wiring

This sub-section is only provided for troubleshooting. If you discover during the Test Run (Page

26), that the lathe will not operate, or that the spindle runs backwards, the lathe may be wired out of phase. Without the proper test equipment to determine the phase of power source legs, wiring machinery to 3-phase power may require trial-and-error.

Correcting the phase polarity requires reversing the positions where two of the incoming power source wires are connected. Due to the high voltage and risk of serious shock involved, we strongly recommend this procedure only be done by an electrician or qualified service personnel.

To correct wiring that is out of phase:

1. Push the STOP button, turn the two-speed

motor switch to OFF, and DISCONNECT THE MACHINE FROM POWER!

Note: If using a phase converter for 220V

3-phase operation, ONLY swap the R and T wires to correct out of phase wiring. The "wild wire" is connected to the S terminal.

TR S

R S T E R1 S1 T1

R S

T R1R1S1

U1R1 S1 T1

T1T1U1

Swap Any Two of

To Plug

These Wires

Figure 10. Swapping power connections to

correct out-of-phase wiring.

3. Close and latch the electrical box, and reconnect the machine to the power source.

Model G0740 (Mfg. Since 11/12)

-17-

SECTION 3: SETUP

Your machine was carefully packaged for safe transportation. Remove the packaging materials from around your machine and inspect it. If you discover any damage, please call us immediately

at (570) 546-9663

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 condi tion of your shipment, inventory the contents.

Preparation

The list below outlines the basic process of preparing your machine for operation. Specific steps are covered later in this section.

The typical preparation process is as follows:

1. Unpack the lathe and inventory the contents

of the box/crate.

2. Clean the lathe and its components.

3. Identify an acceptable location for the lathe

and move it to that location.

4. Level the lathe and either bolt it to the floor or place it on leveling pads.

5. Assemble the loose components and make any necessary adjustments or inspections to ensure the lathe is ready for operation.

Needed for Setup

The following are needed to complete the setup process, but are not included with your machine.

• For Lifting and Moving: — A forklift or other power lifting device rated

for at least 3500 lbs.

— Two lifting straps rated for at least 3500 lbs.

each

— Guide rods for steading the load when lift-

ing (see Page 22) — Two other people for moving machine —Hardwood blocks (see Page 22)

• For Power Connection: — A power source that meets the minimum cir-

cuit requirements for this machine (review Power Supply on Page 15 for details)

— An electrician or qualified service person-

nel to ensure a safe and code-compliant connection to the power source

6. Check/lubricate the lathe.

7. Connect the lathe to the power source.

8. Test run lathe to ensure it functions properly.

9. Perform the spindle break-in procedure to

prepare the lathe for operation.

Unpacking

-18-

for advice.

• For Assembly: — Shop Rags — Cleaner/degreaser (see Page 20) — Quality metal protectant lubricant — Safety glasses for each person — Wrench or socket 21mm — Wrench or socket 19mm — Floor mounting hardware as needed (see

Page 24)

— Precision level at least 12" long

Model G0740 (Mfg. Since 11/12)

Inventory

The following is a list of items shipped with your machine. Before beginning setup, lay these items out and inventory them.

If any non-proprietary parts are missing (e.g. a nut or a washer), we will gladly replace them; or for the sake of expediency, replacements can be obtained at your local hardware store.

Keep children and pets away from plastic bags or packing materials shipped with this

A B

Box 1: (Figure 11) Qty

A. Steady Rest Assembly (Installed) .............. 1

B. 10" Faceplate w/D1-5 Camlock Stud Set ... 1

C. 10" 4-Jaw Chuck w/Reversible Jaws.......... 1

D. 3-Jaw Chuck Key ....................................... 1

E. 4-Jaw Chuck Key ....................................... 1

F. Follow Rest Assembly (Installed) ............... 1

Tool Box Inventory: (Figure 12) Qty

G. Too l Box...................................................... 1

H. Open End Wrench 22/24mm ...................... 1

I. Open End Wrench 14/17mm ...................... 1

J. Open End Wrench 10/12mm ...................... 1

K. Phillips Screwdriver #2 ............................... 1

L. Standard Screwdriver #2 ............................ 1

M. Hex Wrench 8mm ....................................... 1

N. Tapered Spindle Sleeve MT#5-#3 .............. 1

O. Dead Center MT#3 ..................................... 1

P. Carbide-Tipped Dead Center MT#3 ........... 1

Q. Camlock Key D1-5 ...................................... 1

R. Tool Post T-Wrench (Clamped on Tool

Post) ........................................................... 1

S. Hex Wrench Set 1.5-10mm ........................ 1

T. Carriage Handwheel Handle ...................... 1

U. Cross Slide Handwheel Handle ................. 1

V. Cast Iron Leveling Pads ............................. 6

Figure 11. Main inventory.

Figure 12. Toolbox inventory.

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.

Pre-Installed (Not Shown) Qty

• 8" 3-Jaw Chuck w/2-Pc. Jaw Set ............... 1

• 8

Model G0740 (Mfg. Since 11/12)

⁄4" Back Plate D1-5 .................................. 1

SUFFOCATION HAZARD!

machine. Discard immediately.

-19 -

The unpainted surfaces of your machine are coated with a heavy-duty rust preventative that prevents corrosion during shipment and storage. This rust preventative works extremely well, but it will take a little time to clean.

Be patient and do a thorough job cleaning your machine. The time you spend doing this now will give you a better appreciation for the proper care of your machine's unpainted surfaces.

There are many ways to remove this rust preven tative, but the following steps work well in a wide variety of situations. Always follow the manufac turer’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:

•

Basic steps for removing rust preventative:

metal protectant to prevent rust.

Gasoline or products

Many cleaning solvents

ed amounts are inhaled.

Avoid chlorine-based solvents, such as

Cleanup

with low flash points can explode or cause fire if used to clean machinery. Avoid cleaning with these products.

are toxic if concentrat-

Disposable Rags Cleaner/degreaser (WD•40 works well) Safety glasses & disposable gloves Plastic paint scraper (optional)

Put on safety glasses.

Coat the rust preventative with a liberal

amount of cleaner/degreaser, then let it soak for 5–10 minutes.

Wipe off the surfaces. If your cleaner/degreas-

er 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.

Only work in a well-ventilated area.

NOTICE

acetone or brake parts cleaner, that may damage painted surfaces. Test all cleaners in an inconspicuous area before using to make sure they will not damage paint.

T23692—Orange Power Degreaser

A great product for removing the waxy shipping grease from your machine during clean up.

Repeat Steps 2–3 as necessary until clean,

then coat all unpainted surfaces with a quality

-20-

Figure 13. T23692 Orange Power Degreaser.

Model G0740 (Mfg. Since 11/12)

Site Considerations

Weight Load

Physical Environment

Place this machine near an existing power source.

Shadows, glare, or strobe effects that may distract

Refer to the Machine Data Sheet for the weight of your machine. Make sure that the surface upon which the machine is placed will bear the weight of the machine, additional equipment that may be installed on the machine, and the heaviest workpiece that will be used. Additionally, consider the weight of the operator and any dynamic loading that may occur when operating the machine.

Space Allocation

Consider the largest size of workpiece that will be processed through this machine and provide enough space around the machine for adequate operator material handling or the installation of auxiliary equipment. With permanent installations, leave enough space around the machine to open or remove doors/covers as required by the maintenance and service described in this manual.

See below for required space allocation.

Children or untrained people may be seriously injured by this machine. Only install in an access restricted location.

The physical environment where the machine is operated is important for safe operation and longevity of machine components. For best results, operate this machine in a dry environment that is free from excessive moisture, hazardous chemicals, airborne abrasives, or extreme conditions. Extreme conditions for this type of machinery are generally those where the ambient temperature range exceeds 41°–104°F; the relative humidity range exceeds 20–95% (non-condensing); or the environment is subject to vibration, shocks, or bumps.

Electrical Installation

Make sure all power cords are protected from traffic, material handling, moisture, chemicals, or other hazards. Make sure to leave access to a means of disconnecting the power source or engaging a lockout/tagout device, if required.

Lighting

Lighting around the machine must be adequate enough that operations can be performed safely.

or impede the operator must be eliminated.

Min. 30"

for Maintenance

Keep

Workpiece

Loading Area

Unobstructed

= Electrical Connections Illustration Not To Scale

Model G0740 (Mfg. Since 11/12)

Wall

Electrical

Cabinet

Lathe

84"

Figure 14. Minimum working clearances.

48"

32"

-21-

Lifting & Moving

5. Position hardwood blocks under each end of

the bed as shown in Figure 15. This will keep the lifting straps away from the leadscrew, feed rod, and spindle rod to prevent bending them during lifting.

(Looking at Lifting Setup from Tailstock End)

To Power Lifting Equipment

Lifting

Leadscrew

Strap

This machine and its parts are heavy! Serious personal injury may occur if safe moving methods are not used. To reduce the risk of a lifting or dropping injury, ask others for help, and use power equipment and guide rods.

Do not attempt to lift or move this lathe without using the proper lifting equipment (such as forklift or crane) or the necessary assistance from other people. Each piece of lifting equipment must be rated for at least 25% more than the shipping weight of your lathe to support dynamic loads that may be applied while lifting. Refer to Needed for

Setup on Page 18 for details.

To lift and move the lathe:

Feed Rod

Control Rod

Hardwood

Blocks

& Planks

Positioned as

Required to

Prevent Lifting

Straps from

Bending

Leadscrew

Figure 15. Lifting setup to keep straps from

bending leadscrew or rods.

Note: Fasten a center support between the

hardwood blocks so that they will stay spread apart and in place when lifting (see the example in Figure 16).

Center

Support

Lathe

Bed

1. Remove the shipping crate top and sides, then remove the small components from the shipping pallet.

2. Move the lathe to its prepared location while it is still attached to the shipping pallet.

3. Unbolt the lathe from the shipping pallet

4. To balance the load for lifting, move the

tailstock and carriage to the extreme right end of the bedway, then lock them in place.

Note: Before attempting to move the car-

riage, make sure the carriage lock is loose, the half nut is disengaged, and the power feed is disengaged (feed selection lever).

-22-

Hardwood

Blocking

Figure 16. Example of blocking center support.

Model G0740 (Mfg. Since 11/12)

6. Attach the lifting straps to the power lifting equipment (see Figure 17 for an example).

Leveling & Mounting

Use Blocks to Space Straps Away from Control Rod, Feed Rod, Leadscrew & Prevent Bending During Lifting

Power Lifting

Equipment

Lifting Straps

Hardwood Blocking

Figure 17. Example of lathe setup for lifting.

7. At each end of the lathe, have assistants con-

nect guide rods to safely keep the lathe from swaying or tipping during lifting.

When lifting the lathe with straps, the load will be top heavy. Take extra care to keep the load balanced vertically and only lift the lathe far enough to remove the shipping pallet.

8. Raise the lathe a couple of inches and check

the balance of the load.

— If the load is not safely balanced, immedi-

ately lower the lathe and resolve the issue before attempting to lift it again.

9. Raise the lathe enough to clear the shipping pallet, carefully remove the pallet, then lower the lathe into position.

Hardwood Blocking

You must level your machine and either use the included foot pads and leveling hardware or bolt and shim your lathe to the floor. Because mounting your lathe to the floor with permanent hardware is an optional step and floor materials may vary, floor mounting hardware is not included.

Leveling

For accurate turning results and to prevent warping the cast iron bed and ways, the lathe bedways MUST be leveled from side-to-side and from front-to-back on both ends.

Re-check the bedways 24 hours after installation, two weeks after that, and then annually to make sure they remain level.

Leveling machinery helps precision components, such as bedways, remain straight and ﬂat during the lifespan of the machine. Components on a machine that is not level may slowly twist due to the dynamic loads placed on the machine during operation.

For best results, use a precision level that is at least 12" long and sensitive enough to show a distinct movement when a 0.003" shim (approximately the thickness of one sheet of standard newspaper) is placed under one end of the level.

See the ﬁgure below for an example of a high precision level.

Model G0740 (Mfg. Since 11/12)

Figure 18. Model H2683 precision level.

-23-

— If using the included leveling pads (see

the floor if it is permanently connected

Figure 19), place them under the six level-

ing jack bolt locations, then adjust the bolts to level the lathe.

Assembly

With the exception of the handwheel handles, the lathe is shipped fully assembled.

Jack Bolts

Pads

Figure 19. Leveling pads and screws.

— If using mounting hardware that does not

allow for adjustment, level the lathe by placing metal shims between the lathe base and the floor before bolting it down.

Bolting to Concrete Floors

Lag screws and anchors, or anchor studs (see Figure 20), are two popular methods for bolting machinery to a concrete ﬂoor. We suggest you research the many options and methods for mounting your machine and choose the best one for your speciﬁc application.

To install the handwheel handles, thread the large handle into the carriage handwheel and the small handle into the cross slide handwheel, as shown in Figure 21.

Handwheel

Handles

Figure 21. Handwheel handles installed.

Lubricating Lathe

Anchor

Stud

Lag Screw

and Anchor

Figure 20. Typical fasteners for mounting to

concrete floors.

Unless otherwise specified by your local codes, this machine MUST be secured to

(hardwired) to the power supply.

GEARBOXES MUST

BE FILLED WITH OIL!

LATHE MAY NOT

HAVE OIL INCLUDED!

Refer to the Lubrication

Section in this Manual

for Recommended

Oil Type.

The headstock, quick-change gearbox, and apron oil reservoirs must have the proper amount of oil in them before the lathe can be operated initially.

Damage caused to the bearings and gears from running the lathe without oil in the reservoirs will not be covered under warranty. Refer to the Lubrication section, beginning on Page 65, for checking and adding oil.

-24-

Model G0740 (Mfg. Since 11/12)

In addition to the reservoirs, we also recommend

S1 T1 U1 V1 W1 E 0 2 3

Ground

4 5 6 7 8

T1T1U1U1V1

E 0

334 5

66778

4 5 6 7 8

V1U1

S1 T1

0 4 6322

that you lubricate all other points on the machine at this time. This can be accomplished by following the maintenance schedule on Page 64.

Note: If this lathe was shipped with oil in the res- ervoirs, do not change that oil until after the test run and spindle break-in procedures.

Adding Coolant

Note About 3-Phase Power: Due to the startup

load from this machine, we do not recommend using a static phase converter to create 3-phase power—as it can quickly decrease the life of electrical components on this machine. If you must use a phase converter, only use a rotary phase converter and connect the manufactured leg or "wild wire" to the S terminal (see location in Figures 22–23). The S terminal can handle power fluctuation because it is wired directly to the motor.

To connect the power cord to the lathe:

Add the coolant of your choice now. For detailed instructions on where the coolant tank is located and how to add fluid, refer to Coolant System

Service on Page 70.

Power Connection

Electrocution or fire may occur if machine is ungrounded, incorrectly connected to power, or connected to an undersized circuit. Use an electrician or a qualified service personnel to ensure a safe power connection.

Before the machine can be connected to the power source, an electrical circuit must be made available that meets the minimum specifications given in Circuit Requirements for 220V on Page

15. If a power circuit has not been prepared for the

machine, do that now.

To minimize the risk of electrocution, fire, or equipment damage, installation work and electrical wiring MUST be done by an electrician or qualified service personnel.

Note About Extension Cords: Using an incor- rectly sized extension cord may decrease the life of electrical components on your machine. Refer to Extension Cords on Page 16 for more information.

1. Press the STOP button, turn the two-speed motor switch to the OFF position then open the electrical cabinet door.

2. Identify the R, S, and T terminals and the grounding terminal (see Figure 22).

Grounding

Terminal

R S

Incoming Power

Strain Relief

Figure 22. Location of hot wire terminals, ground

terminal and strain relief inside electrical cabinet.

3. Thread the power cord through the strain relief shown in Figure 22.

4. Connect the incoming hot wires and ground wire to the terminals shown in Figure 23.

Incoming

Power Cord

Wires Connected

TR S

R S T E R1

R S

T R1

Figure 23. Ground and hot wires connected.

Model G0740 (Mfg. Since 11/12)

-25-

5. Make sure the power cord and wires have slack between the strain relief and terminal connections so that they do not bind, then tighten the strain relief to secure the cord.

Note: The strain relief must be tightened

against the outer jacket of the cord. Avoid over-tightening the strain relief or it may crush the cord and cause a short.

Test Run

Once the assembly is complete, test run your machine to make sure it runs properly and is ready for regular operation.

The test run consists of verifying:

6. Test the strain relief to ensure it is properly

tightened by pulling the cord from outside the box with light-to-moderate force. When the strain relief is properly tightened, the cord will not move inside the cabinet.

7. Install a NEMA 15-20 plug on the other end of the power cord per the plug manufacturer's instructions.

8. Close and lock the main electrical box door.

To avoid unexpected start-up of lathe components, keep the two-speed motor switch turned OFF and the STOP button pressed in until instructed otherwise in the Test Run.

9. Connect the plug to the matching receptacle and power source as specified in Circuit Requirements for 220V on Page 15.

• The motor powers up and runs correctly.

• The motor turns in the correct direction (machine is not wired out of phase).

• The safety features work correctly.

• The brake system works correctly.

• The cutting fluid system works correctly.

If, during the test run, you cannot easily locate the source of an unusual noise or vibration, stop using the machine immediately, then review

Troubleshooting on Page 73.

Before starting the lathe, make sure you have performed the preceding assembly and adjustment instructions, and you have read through the rest of the manual and are familiar with the various functions and safety features on this machine. Failure to follow this warning could result in serious personal injury or even death!

-26-

To test run your machine:

1. Make sure the two-speed motor switch (see Figure 24) is turned OFF and the spindle

lever is in the OFF (middle) position.

Two-Speed

Motor Switch

Figure 24. Location of the two-speed switch.

Model G0740 (Mfg. Since 11/12)

Spindle

Lever

2. Clear away all tools and objects used during assembly, lubrication, and preparation.

3. Make sure that the chuck and jaws, if installed, are secure (refer to Chuck and Faceplate

Mounting on Page 32).

Note: If a chuck is not installed on the lathe,

you do not need to install one for this test.

4. Push the STOP button on the control panel (see Figure 25), and point the coolant nozzle into the chip pan.

Note: In the next step, use the chuck key

to rock the chuck back-and-forth so that the gears will mesh as you make the adjustments. Be sure to remove the chuck key before continuing.

6. Set the spindle speed to 50 RPM as follows:

a. Move the spindle range lever so that the

arrow on top of its hub is pointing toward the right-hand spindle speed chart (see Figure 27).

Cutting Fluid

Pump Switch

Jog

Button

Power

Lamp

STOP Button

Figure 25. Control panel.

5. Disengage the quick-change gearbox from

the drive train by moving the feed range lever to the neutral (middle) position (see Figure

26).

Speed

Speed Lever

Spindle Range

Lever

Spindle Speed

Lever Set To

“A” (50 RPM)

Spindle Range

Lever Pointing

To The Right-

Hand Speed

Chart

Figure 27. Spindle speed set to 50 RPM.

b. Move the spindle speed lever so that the

"A" on its hub is directly under the arrow on the headstock. This corresponds to the "A" in the right-hand spindle speed chart.

Feed

Range Lever

Low

Feed Range Lever

Neutral

High

Figure 26. Feed range lever.

Model G0740 (Mfg. Since 11/12)

c. Turn the two-speed motor switch to the

LOW position. This enables all the low speeds in the green columns of the spindle speed charts.

-27-

Disengaged

7. To ensure the carriage components do not unexpectedly move during the following steps, disengage the half nut lever and feed selection lever (see Figure 28).

Half Nut

Lever

Feed

Selection

Lever

Cross Slide

Carriage

Feed Selection

Lever

Figure 28. Disengaging carriage components.

8. Reset the STOP button by twisting it clock-

wise until it pops out. The power lamp on the control panel should illuminate.

9. Verify that the machine is operating correctly by pulling the spindle lever out and moving it down to start spindle rotation (see Figure

29).

Disengaged

Halfnut

Lever

Engaged

— When operating correctly, the machine

runs smoothly with little or no vibration or rubbing noises.

— Investigate and correct strange or unusual

noises or vibrations before operating the machine further. Always disconnect the machine from power when investigating or correcting potential problems.

10. With the spindle lever in the down position, the spindle should be rotating counterclockwise— down and toward you as you face the lathe.

— If the spindle and chuck are not rotating

counterclockwise, the power supply is connected out-of-phase. Stop the machine, disconnect it from power, then follow the instructions in the Correcting Phase Polarity section on Page 17. After correcting the wiring, repeat Steps 7–10.

11. Press the STOP button to turn the lathe OFF, then, without resetting the STOP button, try to restart spindle rotation. The spindle should not start.

— If spindle rotation does start with the STOP

button pressed in, the STOP button safety is not operating correctly. This safety feature must operate properly before continuing operation. Use the spindle lever to stop the lathe, disconnect it from power, and call Tech Support for help.

Spindle

Lever

Figure 29. Spindle lever in down (forward)

position.

-28-

12. Move the spindle lever to the OFF (middle) position, reset the STOP button by twisting it clockwise until it pops out, then restart spindle rotation.

13. Push the foot brake. The spindle should come to a quick stop.

— If the brake pedal has no effect on the

lathe, push the STOP button, and refer to Brake & Switch on Page 80 to make any required adjustments.

14. Move the spindle lever to the OFF (middle) position. Remove the end gear cover from the left side of the headstock. This activates a safety switch that should prevent the spindle from starting while this cover is removed.

Model G0740 (Mfg. Since 11/12)

+ 102 hidden pages