Grizzly G0750G Owner's Manual
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Grizzly G0750G Owner's Manual

Grizzly G0750G Owner's Manual

12" x 36" gunsmith's lathe
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MODEL G0750G
12" X 36" GUNSMITH'S LATHE
OWNER'S MANUAL
(For models manufactured since 5/15)
COPYRIGHT © APRIL, 2013 BY GRIZZLY INDUSTRIAL, INC. REVISED JUNE, 2017 (BL)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#BL15669 PRINTED IN CHINA
V2.06.17

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Summary of Contents for Grizzly G0750G

  • Page 1 OWNER'S MANUAL (For models manufactured since 5/15) COPYRIGHT © APRIL, 2013 BY GRIZZLY INDUSTRIAL, INC. REVISED JUNE, 2017 (BL) WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
  • Page 2 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.

  • Page 3: Table Of Contents

    Table of Contents INTRODUCTION ..........3 Faceplate ............. 34 Machine Description ........3 Tailstock ............35 Contact Info............ 3 Positioning Tailstock ......... 35 Manual Accuracy ........... 3 Using Quill ............35 Identification ........... 4 Installing Tooling ..........35 Controls & Components ......... 5 Removing Tooling ..........
  • Page 4 SECTION 5: ACCESSORIES ......57 SECTION 8: WIRING ........81 Wiring Safety Instructions ......81 SECTION 6: MAINTENANCE ......60 Wiring Overview ........... 82 Schedule ............60 Component Location Index ......82 Ongoing ............60 Electrical Cabinet Wiring ......83 Daily, Before Operations ........

  • Page 5: Introduction

    INTRODUCTION Machine Description Manual Accuracy The Model G0750G 12" x 36" Gunsmith’s Lathe We are proud to provide a high-quality owner’s features a totally enclosed gearbox for quieter manual with your new machine! operation, smoother performance, reduced oil change frequency, and longer gear and bearing We made every effort to be exact with the instruc- life.

  • Page 6: Identification

    Identification Figure 1. Model G0750G identification. A. Headstock K. Longitudinal Leadscrew B. D1-5 Camlock MT#5 Spindle Feed Rod C. 3-Jaw Chuck 6" M. Control Rod D. Steady Rest N. Storage Cabinet E. LED Work Light O. Stand Mounting Points P. Carriage (see Page 5 for details) Follow Rest G.

  • Page 7: Controls & Components

    P. Apron: Houses the carriage gearing. Thread Dial Chart: Indicates on which thread dial reading to engage the half nut for specific inch thread pitches. Model G0750G (Mfd. Since 5/15)

  • Page 8: Tailstock

    ⁄ "Square Drive Lock-Down: Used with a torque wrench for precise alignment of centers. Model G0750G (Mfd. Since 5/15)

  • Page 9: Machine Data Sheet

    MACHINE DATA SHEET Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901 MODEL G0750G 12" X 36" GUNSMITHING LATHE Product Dimensions: Weight................................1059 lbs. Width (side-to-side) x Depth (front-to-back) x Height..............67 x 29-1/2 x 56 in.
  • Page 10 The information contained herein is deemed accurate as of 6/27/2017 and represents our most recent product specifications. Model G0750G PAGE 2 OF 3 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model G0750G (Mfd. Since 5/15)
  • Page 11 Fluid Capacities Headstock Capacity..........................3.5 qt. Headstock Fluid Type..............ISO 32 (eg. Grizzly T23963, Mobil DTE Light) Gearbox Capacity............................1 qt. Gearbox Fluid Type..............ISO 68 (eg. Grizzly T23962, Mobil Vactra 2) Apron Capacity............................0.5 qt. Apron Fluid Type................ISO 68 (eg. Grizzly T23962, Mobil Vactra 2) Other Specifications: Country of Origin ..............................

  • Page 12: Section 1: Safety

    Everyday ery. Never operate under the influence of drugs or eyeglasses are NOT approved safety glasses. alcohol, when tired, or when distracted. -10- Model G0750G (Mfd. Since 5/15)
  • Page 13 EXPERIENCING DIFFICULTIES. If at any time debris. Make sure they are properly installed, you experience difficulties performing the intend- undamaged, and working correctly BEFORE ed operation, stop using the machine! Contact our operating machine. Technical Support at (570) 546-9663. -11- Model G0750G (Mfd. Since 5/15)

  • Page 14: Additional Safety For Metal Lathes

    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. -12- Model G0750G (Mfd. Since 5/15)

  • Page 15: Additional Chuck Safety

    Always disconnect the lathe from power additional training from an experienced chuck user before performing these procedures. before using a chuck. -13- Model G0750G (Mfd. Since 5/15)

  • Page 16: Section 2: Power Supply

    To reduce the risk of these hazards, avoid over- loading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requirements. -14- Model G0750G (Mfd. Since 5/15)

  • Page 17: Grounding Instructions

    Minimum Gauge Size ......14 AWG be performed by an electrician or qualified Maximum Length (Shorter is Better)..50 ft. service personnel, and it must comply with all local codes and ordinances. -15- Model G0750G (Mfd. Since 5/15)

  • Page 18: Section 3: Setup

    IMPORTANT: Save all packaging materials until you are completely satisfied with the machine and have resolved any issues between Grizzly or the shipping agent. You MUST have the original pack- aging to file a freight claim. It is also extremely helpful if you need to return your machine later.

  • Page 19: Inventory

    Q. Tapered Spindle Sleeve MT#5-#3 ....1 R. Arbor B16 to MT#3 ........1 S. Standard Dead Center MT#3 ..... 1 Carbide-Tipped Dead Center MT#3 ... 1 Figure 11. Packaged components. U. Live Center MT#3 ........1 -17- Model G0750G (Mfd. Since 5/15)

  • Page 20: Cleanup

    Figure 12. T23692 Orange Power Degreaser. off the rest with the rag. Repeat Steps 2–3 as necessary until clean, then coat all unpainted surfaces with a quality metal protectant to prevent rust. -18- Model G0750G (Mfd. Since 5/15)

  • Page 21: Site Considerations

    Wall Min. 30" for Maintenance 67" Lathe Keep " Workpiece Loading Area Unobstructed = Electrical Connection Illustration Not To Scale Figure 13. Minimum working clearances. -19- Model G0750G (Mfd. Since 5/15)

  • Page 22: Assembly

    Assembly This machine and its parts are heavy! Serious personal Assembling the Model G0750G consists of build- injury may occur if safe ing the cabinet stand assembly, installing the moving methods are not handwheels, placing and securing the lathe on...
  • Page 23 Partially thread them into the cabinet mount- ing holes (see Figure 19), but do not fully tighten them until instructed. Bedway Pedestals Figure 18. Lifting setup for a forklift to keep straps from bending leadscrew and rods. -21- Model G0750G (Mfd. Since 5/15)

  • Page 24: Anchoring To Floor

    Lag Screw Flat Washer Machine Base Figure 20. Locations to secure backsplash. Lag Shield Anchor Concrete Drilled Hole Figure 21. Popular method for anchoring machinery to a concrete floor. -22- Model G0750G (Mfd. Since 5/15)

  • Page 25: Leveling

    Note: If this lathe was shipped with oil in the res- precision level offered by Grizzly. ervoirs, do not change that oil until after the test run and spindle break-in procedures. Figure 22. Model H2683 Master Machinist's Level. -23- Model G0750G (Mfd. Since 5/15)

  • Page 26: Power Connection

    Refer to those terminals. to Extension Cords on Page 15 for more infor- mation. Ground Wire Connected Hot Wires Incoming Connected Power Cord Figure 24. Incoming ground and hot wires connected. -24- Model G0750G (Mfd. Since 5/15)

  • Page 27: Test Run

    Make sure that the chuck and jaws, if installed, are secure (refer to Chuck Installation on Page 30). Note: If a chuck is not installed on the lathe, you do not need to install one for this test. -25- Model G0750G (Mfd. Since 5/15)
  • Page 28 Move the spindle speed levers to B and 1 to Break-In procedure. set the spindle rotation at 70 RPM (Figure 26). Speed Levers Numeric Alpha Lever Lever Set to "I" Set to "B" Figure 26. Spindle speed set to 70 RPM. -26- Model G0750G (Mfd. Since 5/15)

  • Page 29: Spindle Break-In

    Press the emergency stop/RESET button and DISCONNECT THE LATHE FROM POWER! Congratulations! The spindle break-in is com- plete. We recommend changing the headstock and gearbox oil before operating the machine further (refer to Lubrication on Page 61). -27- Model G0750G (Mfd. Since 5/15)

  • Page 30: Section 4: Operations

    OFF position, then removes the ects. Regardless of the content in this sec- workpiece. tion, Grizzly Industrial will not be held liable for accidents caused by lack of training. -28- Model G0750G (Mfd. Since 5/15)

  • Page 31: Chuck & Faceplate Mounting

    Plywood Chuck Cradle Plywood Chuck Cradle (Straight Cuts) (Curved Cuts) LARGE, VERY HEAVY CHUCKS Fabricated Steel Pre-Threaded Hole Lifting Hook for Lifting Eye Figure 27. Examples of common devices used during chuck installation and removal. -29- Model G0750G (Mfd. Since 5/15)

  • Page 32: Chuck Installation

    CORRECT INCORRECT INCORRECT INCORRECT Stud Too High: Stud Too Low: Turn In Turn Out One-Turn One-Turn Figure 28. Inserting camlock studs into spindle cam holes. Figure 30. Correcting an improperly installed stud. -30- Model G0750G (Mfd. Since 5/15)

  • Page 33: Registration Marks

    — If chuck does not immediately come off, rotate it approximately 60° and tap it again. Make sure all marks on cams and Figure 31. Registration mark locations. spindle are properly aligned for removal. -31- Model G0750G (Mfd. Since 5/15)

  • Page 34: Scroll Chuck Clamping

    Bar Stock Figure 34. Reversing the chuck jaws. Unsafe Jaw Position CORRECT INCORRECT Unsafe Jaw Position Safer Inside Jaw Use Cylinder Poor Scroll CORRECT Gear Engagement INCORRECT Figure 33. Jaw selection and workpiece holding. -32- Model G0750G (Mfd. Since 5/15)

  • Page 35: 4-Jaw Chuck

    With help from another person or a holding device, position workpiece so it is centered in chuck. Figure 36. Generic picture of non-cylindrical workpiece correctly mounted on the 4-jaw chuck. -33- Model G0750G (Mfd. Since 5/15)

  • Page 36: Faceplate

    To reduce this risk, use a minimum Faceplate of THREE independent clamping devices to hold the workpiece onto the faceplate. Figure 37. Generic picture of workpiece clamped in a faceplate. -34- Model G0750G (Mfd. Since 5/15)

  • Page 37: Tailstock

    40 lbs/ft of torque. The center point will be drawn Figure 40. Example photos of inserting tools down as much as 0.006". Do not exceed the max with tangs into the tailstock. torque or damage to ways and tailstock will occur. -35- Model G0750G (Mfd. Since 5/15)

  • Page 38: Removing Tooling

    Start spindle rotation, unlock quill lock lever, then turn quill handwheel clockwise to feed Tools Needed tool into workpiece. Hex Wrench 4mm ..........1 -36- Model G0750G (Mfd. Since 5/15)

  • Page 39: Aligning Tailstock To Spindle Centerline

    Use another piece of round stock to make a dead center. Turn it to a 60° point, as illus- Figure 42. Set screw adjustment in relation to trated below. tailstock movement. Figure 43. Turning a dead center. -37- Model G0750G (Mfd. Since 5/15)
  • Page 40 ⁄ the dis- tance of taper amount, as shown below. Move tailstock toward front of lathe amount of taper. Looking down from above. Figure 45. Adjust tailstock toward the operator. -38- Model G0750G (Mfd. Since 5/15)

  • Page 41: Centers

    Using low spindle speeds will also reduce the heat and wear Lathe from friction. Figure 48. Example photo of using a dead center with a faceplate and lathe dog. -39- Model G0750G (Mfd. Since 5/15)

  • Page 42: Removing Center From Spindle

    Thoroughly clean and dry the tapered mating surfaces of the tailstock quill bore and the center, making sure that no lint or oil remains Figure 50. Drift key slot in the side of the quill. on the tapers. -40- Model G0750G (Mfd. Since 5/15)

  • Page 43: Mounting Workpiece Between Centers

    The procedure for mounting and removing which may damage the workpiece or center. the chuck and arbor from the tailstock quill is the same as for a center. Refer to Mounting Center in Tailstock and Removing Center from Tailstock. -41- Model G0750G (Mfd. Since 5/15)

  • Page 44: Steady Rest

    Position the steady rest with the base clamp where required to properly support the workpiece, then tighten the hex nut shown in Figure 53 to secure it in place. -42- Model G0750G (Mfd. Since 5/15)

  • Page 45: Follow Rest

    Hex Wrench 8mm ..........1 Hex Wrench 6mm ..........1 Open-End Wrench 10mm ........1 Carriage Finger Lock Rollers Screws Compound Rest Cross Slide Lock Lock Figure 56. Location of compound rest lock. Figure 55. Follow rest attachment. -43- Model G0750G (Mfd. Since 5/15)

  • Page 46: Compound Rest

    DO NOT extend a cutting tool more than 2.5 times the width of its cross-section (e.g., 2.5 x 0.5" = 1.25"). -44- Model G0750G (Mfd. Since 5/15)

  • Page 47: Aligning Cutting Tool With Spindle Centerline

    For this to work, the tailstock must center. be aligned to the spindle centerline (refer to Aligning Tailstock To Spindle Centerline on Page 37 for detailed instructions). -45- Model G0750G (Mfd. Since 5/15)

  • Page 48: Spider

    0.001" (0.02mm) increments. One workpiece and leaving the jam nuts loose is not full revolution of the handwheel moves the slide safe. Spiders screws that loosen during operation 0.100" (2.54mm). can crash into the lathe end cover. -46- Model G0750G (Mfd. Since 5/15)

  • Page 49: Spindle Speed

    Also, there are a large number of easy-to-use spindle speed calculators that can be found on the internet. These sources will help you take into account the applicable variables in order to deter- mine the best spindle speed for the operation. -47- Model G0750G (Mfd. Since 5/15)

  • Page 50: Configuration Example

    Figure 66. Setting the spindle speed to 600 are engaged at the same time, machine RPM. damage could occur. Even though there is a lock-out device to prevent this, it could break if forced. -48- Model G0750G (Mfd. Since 5/15)

  • Page 51: Power Feed Controls

    Figure 67, the carriage will move ponent you are trying to engage, so that the to the left along the bed, or the cross feed will apron gears can mesh. travel toward the rear of the lathe. -49- Model G0750G (Mfd. Since 5/15)

  • Page 52: Setting Power Feed Rate

    0.0017 in./rev., as shown in Figure 70. The cross slide is now set up for a power feed rate of 0.0017 in./rev. 60T Gear 0.0017 in./rev. Figure 70. 0.0017 in./rev. location on feed chart. -50- Model G0750G (Mfd. Since 5/15)

  • Page 53: End Gears

    120T Gear "a " Position 120T Gear 60T Gear "a" row Bottom Position "b" row "b " Position 127T Gear Figure 75. Metric feed chart change gears. Figure 73. Power feed chart change gears. -51- Model G0750G (Mfg. Since 11/12)

  • Page 54: End-Gear Configuration Example

    Loosen the arm support cap screw shown in washers and cap screws removed earlier. Figure 77. "b" Position "a" Position Gear Gear Support Screw 120/127T Gears Arm Support Support Hex Nut Figure 77. Arm support and end gears. -52- Model G0750G (Mfd. Since 5/15)

  • Page 55: Threading

    Figure 77). Locate 18 TPI on the inch threading chart 14. Re-install the end gear cover. below. 1 & V Dials A & C Dials 18 TPI Figure 80. 18 TPI and corresponding dial positions. -53- Model G0750G (Mfd. Since 5/15)

  • Page 56: Apron Threading Controls

    Figure 81. Gearbox dial settings for 18 TPI. The lathe is now setup to cut 18 TPI threads. Cross Slide Disengaged Disengaged Carriage Halfnut Lever Feed Selection Engaged Lever Figure 82. Apron threading controls. -54- Model G0750G (Mfd. Since 5/15)

  • Page 57: Thread Dial

    Important: You can engage on the number 1 on the thread dial to cut any thread if you do not want to use the chart, or if you forget any of the rules on the next page. -55- Model G0750G (Mfd. Since 5/15)
  • Page 58 Odd TPI: For threading odd numbered TPI, use any numbered line on the thread dial (see the example in Figure 87). Table Thread Dial T.P.I. SCALE 1, 3, 5, 7 Figure 87. Any number on dial for threading odd numbered TPI. -56- Model G0750G (Mfd. Since 5/15)

  • Page 59: Section 5: Accessories

    Figure 92. Carbide Insert CCMT Boring Bar Set. wide range of temperatures and conditions. T10556—Taper Attachment Kit for Model G0750G P0750G1216-3V3—LED Bulb 24V Bi-Pin Replacement bulb for the Model G0750G work light. Figure 90. T23964 Armor Plate. www.grizzly.com 1-800-523-4777 order online at...
  • Page 60 ⁄ " ⁄ " 2" G5699—Turning Holders ⁄ "~ ⁄ " ⁄ " ⁄ " ⁄ " G5701 G5704 G5705 G5703 G5700 G5699 Figure 94. Quick-change tool holders. Figure 96. HSS Ground Center-Drill Sets. -58- Model G0750G (Mfd. Since 5/15)
  • Page 61 Holder is designed to allow free movement of a floating reamer in 3 directions: vertical, horizontal and angular, as required for proper performance of any floating reamer. Figure 101. T10720 Crown Savers. Figure 99. Bald Eagle Reamer Holder MT#3. -59- Model G0750G (Mfd. Since 5/15)

  • Page 62: Section 6: Maintenance

    This includes any surface that is • Ensure carriage lock bolt is loose. vulnerable to rust if left unprotected (especially parts that are exposed to water soluble cutting fluid). Use way oil to prevent corrosion. -60- Model G0750G (Mfd. Since 5/15)

  • Page 63: Lubrication

    Quick-Change Gearbox Daily Apron Daily Headstock Bedways Daily Oil Type ..Grizzly T23963 or ISO 32 Equivalent Longitudinal Leadscrew Daily Oil Amount .......... 3.5 Quarts Ball Oilers Daily Check/Add Frequency ......... Daily Change Frequency ....... Semi-Annually...

  • Page 64: Quick-Change Gearbox

    Quick-Change Gearbox Adding Oil The oil fill plug is located on top of the headstock, Oil Type ..Grizzly T23962 or ISO 68 Equivalent as shown in Figure 103. Oil Amount ..........1 Quart Check/Add Frequency ......... Daily Change Frequency ........ Annually...

  • Page 65: Apron

    Apron Bedways Oil Type ..Grizzly T23962 or ISO 68 Equivalent Oil Type ..Grizzly T23962 or ISO 68 Equivalent Oil Amount .......... 0.5 Quarts Oil Amount ......... As Needed Check/Add Frequency ......... Daily Lubrication Frequency ......... Daily Change Frequency ........ Annually Before lubricating the bedways (see Figure 108), clean them with mineral spirits.

  • Page 66: Ball Oilers

    Ball Oilers Oil Type ..Grizzly T23963 or ISO 32 Equivalent Oil Amount ........1 or 2 Squirts Lubrication Frequency ......... Daily This lathe has 15 ball oilers that should be oiled on a daily basis before beginning operation. Refer to Figures 109–112 for their locations.

  • Page 67: End Gears

    Make sure the end gear cover remains installed whenever possible to keep the gears free of dust or debris from the outside environment. -65- Model G0750G (Mfd. Since 5/15)

  • Page 68: Machine Storage

    Slide the carriage, tailstock, and steady rest down the lathe bed to make sure that way spotting is not beginning to occur. -66- Model G0750G (Mfd. Since 5/15)

  • Page 69: Section 7: Service

    2. Refer to the feeds and speed charts in Machinery's down under load. Handbook or a speeds and feeds calculator on the cutting operation. internet. 3. Cutting tool is dull. 3. Sharpen or replace the cutting tool. -67- Model G0750G (Mfd. Since 5/15)

  • Page 70: Lathe Operation

    3. Gibs are out of adjustment. cutting. 4. Dull cutting tool. 4. Replace or resharpen cutting tool. 5. Incorrect spindle speed or feed rate. 5. Use the recommended spindle speed and feed rate. -68- Model G0750G (Mfd. Since 5/15)
  • Page 71 8. Gears or shear pin broken. Gear change levers 1. Gears not aligned inside headstock/Quick- 1. Rotate spindle by hand with light pressure on the will not shift into Change gearbox. lever until gear falls into place. position. -69- Model G0750G (Mfd. Since 5/15)

  • Page 72: Backlash Adjustment

    0.002"–0.003", as indicated on the graduated cross slide, as shown in Figure 116. dial. Secure the setting with the set screws. Repeat the adjustments above if necessary. -70- Model G0750G (Mfd. Since 5/15)

  • Page 73: Leadscrew End Play Adjustment

    Hold the leadscrew flange bolt with the 24mm wrench, and tighten the set screw until it is snug at the bottom of its bore. -71- Model G0750G (Mfd. Since 5/15)

  • Page 74: Cross Slide Gib

    —To decrease the slide tension, loosen the Carriage front gib screw ⁄ turn, and tighten the rear Lock gib screw ⁄ turn. Repeat adjustments as necessary until the gib screw drag is acceptable. Figure 121. Location of carriage lock. -72- Model G0750G (Mfd. Since 5/15)

  • Page 75: Half Nut Adjustment

    Hold the set screws in place and tighten the Repeat Steps 3–5, if necessary, until you are jam nuts. satisfied with the half nut adjustment, then re- install the thread dial. -73- Model G0750G (Mfd. Since 5/15)

  • Page 76: V-Belt Tension & Replacement

    Figure 124. Checking V-belt deflection. Tension the belts. (Refer to Tensioning Push down on the motor and re-tighten the V-Belts on this page.) mounting hex bolts. Secure the end gear cover. -74- Model G0750G (Mfd. Since 5/15)

  • Page 77: Leadscrew Shear Pin Replacement

    Pointer Set to "N" case of a carriage crash or the lathe is overloaded. Contact Grizzly Customer Service at (570) 546- 9663 to order a replacement shear pin (Part P0750G0960). Figure 127. Gearbox dial set to "N" .

  • Page 78: Feed Clutch Adjustment

    Never completely tighten the feed clutch past its normal setting in an attempt to completely elimi- nate clutch slip. Doing so will void the warranty, and can lead to a non-slipping clutch, resulting in catastrophic gearbox damage. -76- Model G0750G (Mfd. Since 5/15)

  • Page 79: Gap Insert Removal & Installation

    130) to draw the pins from the gap. tact the gap. Tighten the preload set screw inward until it contacts the headstock and resistance can be felt, then tighten it an additional ⁄ -turn. -77- Model G0750G (Mfd. Since 5/15)

  • Page 80: Bearing Preload

    Hex Wrench 6mm ..........1 To adjust the preload: Run the lathe for 20 minutes on high speed to bring the lathe to a normal temperature. DISCONNECT LATHE FROM POWER! Outer Spanner Figure 134. Loosening outer spanner nut. -78- Model G0750G (Mfd. Since 5/15)
  • Page 81 Steps 7–8, then re-tighten the inner spanner nut until it has reached the zero end play position. Figure 136. Dial indicator setup. 10. Move the carriage an additional 0.100" toward the headstock. -79- Model G0750G (Mfd. Since 5/15)
  • Page 82 Step 12 in the preceding instructions. 14. Re-install the outboard spindle cover. -80- Model G0750G (Mfd. Since 5/15)

  • Page 83: Section 8: Wiring

    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. -81- Model G0750G (Mfd. Since 5/15)

  • Page 84: Wiring Overview

    Component Location Index Work Light Electrical Page 87 Cabinet Page 83 Control Panel Page 86 Spindle Motor Page 85 Spindle Switch Page 86 Figure 139. Component location index. READ ELECTRICAL SAFETY -82- Model G0750G (Mfd. Since 5/15) ON PAGE 81!

  • Page 85: Electrical Cabinet Wiring

    24NO 34NO 44NO Ground To Work Light To Power Source To Motor To Control Panel To Spindle Switch (Page 87) (Page 87) (Page 85) (Page 86) (Page 87) READ ELECTRICAL SAFETY -83- Model G0750G (Mfd. Since 5/15) ON PAGE 81!

  • Page 86: Electrical Cabinet

    Electrical Cabinet Figure 140. Electrical cabinet wiring. READ ELECTRICAL SAFETY -84- Model G0750G (Mfd. Since 5/15) ON PAGE 81!

  • Page 87: Motor Wiring

    Figure 141. Spindle motor junction box. Ground Capacitor 20MFD 450VAC To Electrical Cabinet Page 83 Start Capacitor 150MFD 250VAC Motor Run Capacitor Start Capacitor Figure 142. Start capacitor. Figure 143. Run capacitor. READ ELECTRICAL SAFETY -85- Model G0750G (Mfd. Since 5/15) ON PAGE 81!

  • Page 88: Control Panel Wiring

    POWER START/ON POWER BUTTON BUTTON W/LIGHT BUTTON LIGHT HUILONG HUILONG LA103 LA103 110V LA103 10A 660V 10A 660V HUILONG XD103 110V HUILONG LA103,10A 660V To Electrical Cabinet Page 83 READ ELECTRICAL SAFETY -86- Model G0750G (Mfd. Since 5/15) ON PAGE 81!

  • Page 89: Other Component Wiring Diagrams

    Page 83 6-15 Plug (As Recommended) Light Socket To Electrical Cabinet Page 83 ON/OFF Switch Work Light KCD1-A 2/8A 250V Spindle Rotation Switch To Electrical Cabinet Page 83 READ ELECTRICAL SAFETY -87- Model G0750G (Mfd. Since 5/15) ON PAGE 81!
  • Page 90 Other Component Wiring Figure 145. Work light wiring. Figure 146. Spindle ON/OFF rotation switch. -88- Model G0750G (Mfd. Since 5/15)

  • Page 91: Section 9: Parts

    Please Note: We do our best to stock replacement parts whenever possible, but we cannot guarantee that all parts shown here are available for purchase. Call (800) 523-4777 or visit our online parts store at www.grizzly.com to check for availability.

  • Page 92: Headstock Internal Gears

    Headstock Internal Gears 101 102 137 174 117 125 -90- Model G0750G (Mfd. Since 5/15)
  • Page 93 P0750G0172 GEAR 23T P0750G0135 CAP SCREW M6-1 X 14 P0750G0173 GEAR 47T P0750G0136 COMPRESSION SPRING P0750G0137 HEX NUT M10-1.5 P0750G0137 SPIDER SCREW M10-1.5 X 35 P0750G0177 CAP SCREW M12-1.75 X 30 P0750G0138 SPINDLE CAMLOCK -91- Model G0750G (Mfd. Since 5/15)

  • Page 94: Headstock Controls

    Headstock Controls -92- Model G0750G (Mfd. Since 5/15)
  • Page 95 FLAT WASHER 12MM P0750G0252 KNURLED HEAD THUMB SCREW M10-1.5 P0750G0226 CAP SCREW M12-1.75 X 30 P0750G0253 SPIDER GUARD BOLT KNOB M8-1.25 X 14 P0750G0227 PHLP HD SCR M3-.5 X 6 P0750G0254 CAP SCREW M6-1 X 16 -93- Model G0750G (Mfd. Since 5/15)

  • Page 96: Quick-Change Gearbox

    Quick-Change Gearbox 302 303 370 371 335 336 308 309 -94- Model G0750G (Mfd. Since 5/15)
  • Page 97 GEAR 32T P0750G0385 STEEL BALL 6MM P0750G0342 E-CLIP 15MM P0750G0386 PHLP HD SCR M4-.7 X 8 P0750G0343 GEAR 32T/16T P0750G0387 CAP SCREW M5-.8 X 25 P0750G0344 SHIFT FORK A P0750G0388 ROLL PIN 5 X 40 -95- Model G0750G (Mfd. Since 5/15)

  • Page 98: End Gears

    KEY 6 X 6 X 18 P0750G0422 GEAR 57T P0750G0410 BEARING HOUSING P0750G0423 GEAR 56T P0750G0411 ARM SUPPORT BUSHING P0750G0424 GEAR 54T P0750G0412 PIVOT ARM P0750G0425 GEAR 30T P0750G0413 GEAR MOUNTING BOLT M10-1.5 X 45 -96- Model G0750G (Mfd. Since 5/15)

  • Page 99: Apron

    Apron 509 510 507 508 525-1 NOTE: Thread Dial Chart Located on Headstock -97- Model G0750G (Mfd. Since 5/15)

  • Page 100: Apron Parts List

    STEEL FLUTED RIVET 2 X 5 P0750G0589 CAP SCREW M8-1.25 X 30 P0750G0547 THREAD DIAL CHART P0750G0590 TAPERED PIN 8 X 40 P0750G0548 DRAIN PLUG 1/8" NPT P0750G0591 APRON CASE P0750G0549 HALF NUT INDICATOR PLATE -98- Model G0750G (Mfd. Since 5/15)
  • Page 101 Saddle 638 639 -99- Model G0750G (Mfd. Since 5/15)

  • Page 102: Saddle Parts List

    P0750G0647 CROSS SLIDE GIB P0750G0623 SADDLE WIPER W/PLATE RIGHT FRONT P0750G0648 CROSS SLIDE T-BOLT M8-1.25 X 45 P0750G0624 HEX BOLT M8-1.25 X 20 P0750G0649 SHOULDER BOLT M8-1.25 X 8 P0750G0625 SADDLE GIB RIGHT FRONT -100- Model G0750G (Mfd. Since 5/15)

  • Page 103: Compound Rest & Tool Post

    Compound Rest & Tool Post -101- Model G0750G (Mfd. Since 5/15)
  • Page 104 P0750G0735 SET SCREW M10-1 X 45 P0750G0717 STEEL BALL 4MM P0750G0736 KNURLED THUMB NUT M10-1 P0750G0718 KEY 4 X 4 X 10 P0750G0737 WAVY WASHER 10MM P0750G0719 COMPOUND SLIDE LEADSCREW P0750G0738 HEX NUT M10-1 -102- Model G0750G (Mfd. Since 5/15)

  • Page 105: Tailstock Parts List

    P0750G0814 HANDWHEEL HANDLE M8-1.25 X 14 88L P0750G0831 SET SCREW M8-1.25 X 50 P0750G0815 HEX NUT M12-1.75 P0750G0832 HANDLE BASE P0750G0816 QUILL LOCK HANDLE M12-1.75 X 16 170L P0750G0833 SHOULDER BOLT M8-1.25 X 8 -103- Model G0750G (Mfd. Since 5/15)

  • Page 106: Lathe Bed & Motor

    Lathe Bed & Motor 906-3 906-1 906-4 906-6 906-8 906-5 906-7 906-2 906-9 906-10 906-11 906-12 929 930 943 944 964A 971A 964-2 971-1 964-1 -104- Model G0750G (Mfd. Since 5/15)
  • Page 107 971-1 P0750G0971-1 LEFT STAND DOOR P0750G0931 SHOULDER FLANGE SCREW 971A P0750G0971A LEFT STAND ASSY P0750G0932 SET SCREW M6-1 X 20 CONE POINT P0750G0972 FLAT WASHER 14MM P0750G0933 END PLUG P0750G0973 HEX BOLT M14-2 X 45 -105- Model G0750G (Mfd. Since 5/15)

  • Page 108: Steady & Follow Rest Assemblies

    1121 P0750G1121 FINGER 3" W/BEARING ASSEMBLY 1015 P0750G1015 LOCK BOLT M10-1.5 X 18 1122 P0750G1122 BODY CASTING 1016 P0750G1016 KNURLED THUMB KNOB M10-1.5 1123 P0750G1123 CAP SCREW M8-1.25 X 35 1017 P0750G1017 UPPER BODY CASTING -106- Model G0750G (Mfd. Since 5/15)

  • Page 109: Electrical Components

    Electrical Components 1203 1202 1204 1202-1 1203-1 1201 1205 1206 1217 1207 1218 1208 1209 1216 1216-3V3 1210 1211 1212 1213 1214 1215 1216-1 1216-2 1219 -107- Model G0750G (Mfd. Since 5/15)

  • Page 110: Rear & Side Machine Labels

    Rear & Side Machine Labels 1321 1320 1319 1322 REF PART # DESCRIPTION REF PART # DESCRIPTION 1319 P0750G1319 ELECTRICITY LABEL 1321 P0750G1321 SPIDER ENTANGLEMENT LABEL 1320 P0750G1320 HAZARD AREA-CAUTION LABEL 1322 P0750G1322 END GEAR ENTANGLEMENT LABEL -108- Model G0750G (Mfd. Since 5/15)

  • Page 111: Front Machine Labels

    Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes off or becomes unreadable, the owner of this machine MUST replace it in the original location before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com. -109-...

  • Page 112: Section 10: Appendix

    SECTION 10: APPENDIX Threading & Feed Charts -110- Model G0750G (Mfd. Since 5/15)

  • Page 113: Warranty Card

    Would you recommend Grizzly Industrial to a friend? _____ Yes _____No 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.
  • Page 114 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...

  • Page 115: Warranty & Returns

    WARRANTY & RETURNS Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of maintenance.

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