Grizzly G0750GV Owner'S Manual Download

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V1.01.16

MODEL G0750GV

12" X 36" EVS GUNSMITHING

LATHE w/DRO

OWNER'S MANUAL

(For models manufactured since 03/18)

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

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

#KBABJH19520 PRINTED IN CHINA

V1.05.18

Summary of Contents for G0750GV

Page 1: ...OWNER S MANUAL For models manufactured since 03 18 COPYRIGHT MAY 2018 BY GRIZZLY INDUSTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC KBABJH19520 PRINTED IN CHINA V1 05 18 ...

Page 2: ...ng 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 repr...

Page 3: ... Spindle Speed 46 Power Feed 47 End Gears 49 Threading 51 SECTION 5 ACCESSORIES 55 SECTION 6 MAINTENANCE 59 Schedule 59 Cleaning Protecting 59 Lubrication 60 Machine Storage 65 SECTION 7 SERVICE 66 Troubleshooting 66 Backlash Adjustment 69 Electrical Cabinet Cooling Fan Cleaning 70 Leadscrew End Play Adjustment 70 Gib Adjustment 70 Half Nut Adjustment 72 V Belt Tension Replacement 73 Leadscrew She...

Page 4: ...s manual What did you like about it Where could it be improved Please take a few minutes to give us feedback Grizzly Documentation Manager P O Box 2069 Bellingham WA 98227 2069 Email manuals grizzly com Contact Info We are proud to provide a high quality owner s manual with your new machine We made every effort to be exact with the instruc tions specifications drawings and photographs in this manu...

Page 5: ...te this machine until you have understood this entire manual and received proper training L Tailstock see Page 5 for details M Longitudinal Leadscrew N Feed Rod O Control Rod P Storage Cabinet Q Stand Mounting Points R Carriage see Page 4 for details S Chip Tray T Quick Change Gearbox U Leadscrew Safety Clutch V Headstock Controls see Page 4 for details A Headstock B X Z Axis DRO C Spindle Speed T...

Page 6: ...ck Figure 1 Headstock controls G Thread Dial Chart Indicates on which thread dial reading to engage the half nut for specific inch thread pitches H Quick Change Tool Post Allows the opera tor to quickly load and unload tools I Compound Rest Handwheel Moves the tool toward and away from the workpiece at the preset angle of the compound rest J Carriage Lock Secures the carriage in place for greater ...

Page 7: ...enters Control Panel Z RESET Button Glows red if machine enters fault mode or has a short circuit Resets machine functions when pressed in AA Power Button Press to turn machine ON Illuminates when lathe controls are receiving power AB Emergency Stop Button Push to stop all machine functions Twist clockwise to reset AC Variable Spindle Speed Dial Changes spindle speed within set speed range AD Jog ...

Page 8: ...hine Weight 882 lbs Length x Width x Height 67 x 30 x 30 in Must Ship Upright Yes Carton 2 Type Cardboard Box Content Left Stand Weight 177 lbs Length x Width x Height 30 x 25 x 21 in Must Ship Upright No Carton 3 Type Cardboard Box Content Right Stand Weight 177 lbs Length x Width x Height 30 x 25 x 21 in Must Ship Upright No Electrical Power Requirement 220V Single Phase 60 Hz Full Load Current ...

Page 9: ... Number of Spindle Speeds Variable Speed Spindle Speeds 60 2200 RPM Spindle Type D1 5 Camlock Spindle Bearings High Precision Tapered Roller Spindle Length 17 in Spindle Length with 3 Jaw Chuck 21 3 4 in Spindle Length with 4 Jaw Chuck 21 1 4 in Spindle Length with Faceplate 18 1 2 in Tailstock Info Tailstock Quill Travel 3 3 4 in Tailstock Taper MT 3 Tailstock Barrel Diameter 1 575 in Threading I...

Page 10: ...embly Setup Time 2 Hours Serial Number Location ID Label on Headstock Sound Rating 83 dB ISO 9001 Factory Yes Certified by a Nationally Recognized Testing Laboratory NRTL No Features 1 2 in Tailstock Square Drive Lock Down to use with Torque Wrench for Precise Positioning 23 in Minimum Gun Barrel Length Through Spindle w 4 Jaw Chuck Allows for Barrel to Stick Out for Threading 2 Axis Digital Reado...

Page 11: ...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 machin ery Never operate under the influence of drugs or alcohol when tired or when distracted For Your Own Safety Read Instruct...

Page 12: ...th moving parts or flying debris Make sure they are properly installed undamaged and working correctly BEFORE operating machine 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 dur...

Page 13: ...ndle with deadly force Make sure workpiece is properly secured before starting the lathe CHUCKS Chucks can be heavy and difficult to hold During installation and removal protect your hands and precision bed ways by using a chuck cradle or piece of plywood over the bed ways Use lifting equipment as necessary for large chucks STOPPING SPINDLE Always allow spindle to completely stop on its own or use...

Page 14: ...e or a larger chuck if pos sible 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 w...

Page 15: ...ating or fire may result especially if connected to an undersized circuit 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 Circuit Requirements for 220V This machine is prewired to operate on a power supply circuit that has a verified ground and meets the followi...

Page 16: ...pment grounding wire to a live current carrying terminal Check with a qualified electrician or service per sonnel 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 discon nect it from power and immediately replace it with a new one Grounding Instructions This machine MUS...

Page 17: ...Assemble the loose components and make any necessary adjustments or inspections to ensure the lathe is ready for operation 6 Check lathe for proper lubrication 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 Preparation The following are needed to complete the setup process but are ...

Page 18: ...local hardware store 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 Main Components Figure 8 Qty A Main Unit 1 B 6 Three Jaw Chuck w 2 Piece Jaws 1 C Steady Rest 1 D Quick Change Tool Post 1 E Follow Rest 1 F Backsplash 1 G Chi...

Page 19: ...Chuck Spindle Wrenches 1 Ea V Drill Chuck Key 1 W Drill Chuck B16 1 5 13mm 1 X 1 2 Quill Tailstock Lock Handle 1 Y Front Panel Brackets Left Right 2 Z DRO Unit w Mounting Bracket 1 AA Cap Screws M8 1 25 x 25 2 AB Cap Screws M6 1 x 14 6 Installed 6 AC Hollow Handles Handwheels 2 AD Shoulder Screws 2 AE Camlock Studs 6 Installed 6 AF Change Gear Set Gear 120 127T Installed not shown 1 Change Gear 60...

Page 20: ... for removing rust preventative 1 Put on safety glasses 2 Coat the rust preventative with a liberal amount of cleaner degreaser then let it soak for 5 10 minutes 3 Wipe off the surfaces If your cleaner 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 4 Repeat Steps 2 3 as n...

Page 21: ...d lon gevity of machine components For best results operate this machine in a dry environment that is free from excessive moisture hazardous chemi cals 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 t...

Page 22: ...used during the following steps To reduce the risk of a lifting or dropping injury ask others for help and use powered lifting equipment To assemble lathe 1 Position left and right cabinets approximately 34 apart in prepared location see Figure 13 2 Attach front panel brackets to cabinets with 4 M6 1 x 10 Phillips head screws and 4 6mm flat washers see Figure 13 3 Attach front panel to panel brack...

Page 23: ...way Pedestals 10 Position chip pan on top of cabinet stand and align 6 mounting holes with those in cabinets 11 Remove headstock end cover to gain better access to the headstock base pedestal see Figure 18 14 Insert 6 M12 1 75 x 40 hex bolts and 6 12mm flat washers through chip pan Partially thread them into cabinet mounting holes see Figure 18 but do not fully tighten them until instructed 15 Use...

Page 24: ...th the floor surface making it easy to unbolt and move the machine later if needed However anytime local codes apply you MUST follow the anchoring methodology specified by the code Machine Base Concrete Lag Screw Lag Shield Anchor Flat Washer Drilled Hole Figure 20 Popular method for anchoring machinery to a concrete floor Anchoring to Concrete Floors 18 For best results recheck ways in 24 hours t...

Page 25: ... Lubricating Lathe The headstock quick change gearbox and apron oil reservoirs must have the proper amount of oil in them before the lathe can be operated 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 60 for checking and adding oil GEARBOXES MUST BE FILLED WITH OIL L...

Page 26: ... avoid unexpected start up keep the Emergency Stop button pressed in until instructed otherwise in the Test Run To test run machine 1 Clear away all tools and objects used during assembly lubrication and preparation 2 Secure chuck and jaws refer to Chuck Installation on Page 29 The test run consists of verifying the following 1 The motor powers up and runs correctly and 2 the emergency stop button...

Page 27: ...FF then without resetting Emergency Stop button try to restart spindle rotation as instructed in Step 8 The spindle should not start If spindle rotation does start with Emergency Stop button pressed in the Emergency Stop button safety feature is not operating correctly This safety feature must operate properly before continuing operation Use spindle lever to stop lathe disconnect it from power and...

Page 28: ...nment see Page 36 Cross slide and compound slide backlash adjustment see Page 69 Gib adjustments see Page 70 Recommended Adjustments Before subjecting the spindle to operational loads it is essential to complete the break in process This helps maximize the life of spindle bearings and other precision components by thoroughly lubricating them before placing them under load After spindle break in is...

Page 29: ...raining To complete a typical operation the operator does the following 1 Puts on safety glasses or face shield rolls up sleeves removes jewelry and secures any clothing or hair that could get entangled in moving parts 2 Examines workpiece to make sure it is suit able for turning then securely mounts it in lathe 3 For long pipes rods and shafts installs required safety anchoring support s and stea...

Page 30: ...d removal Dropping a chuck can result in amputation serious crushing injuries or property dam age Always use a support or protective device to reduce this risk during installation or removal Never use spindle speeds faster than the chuck RPM rating or the safe limits of your workpiece Excessive spindle speeds greatly increase the risk of the workpiece or chuck being thrown from the machine with de...

Page 31: ...ry swapping stud positions on chuck Figure 25 Inserting camlock studs into spindle cam holes INCORRECT CORRECT To ensure accurate work it is extremely important to make sure the spindle nose and chuck mating surfaces tapers are clean Even a small amount of lint or debris can affect accuracy The chuck is properly installed when all camlocks are tight the spindle and chuck tapers firmly lock togethe...

Page 32: ...ed easily with little interven tion they are not seated together firmly as required Remove chuck re clean mating surfaces carefully and re install If prob lem persists contact our Tech Support To remove chuck 1 DISCONNECT MACHINE FROM POWER 2 Use appropriate lifting support or protective device to protect ways and support chuck refer to Chuck Safety Support Devices section for more details 3 Loose...

Page 33: ...r Engagement Poor Grip Unstable Workpiece Shallow Bar Stock Shallow Bar Stock Safer Outside Jaw Use Safer Inside Jaw Use CORRECT CORRECT CORRECT CORRECT INCORRECT INCORRECT INCORRECT INCORRECT Figure 30 Jaw selection and workpiece holding Chuck Jaw Reversal This chuck has 2 piece jaws that consist of a reversible top jaw and a master jaw The top jaw can be removed rotated 180 and re installed in t...

Page 34: ...to protect ways refer to Chuck Safety Support Devices section for more details 3 Use chuck key to open each jaw so work piece will fit into spindle opening and lay flat against chuck face and jaw steps 4 With help from another person or a holding device position workpiece so it is centered in chuck 5 Tighten each jaw in small increments After tightening first jaw continue tightening remaining jaws...

Page 35: ...mp it in place with a mini mum of three independent clamping devices see below for an example Be sure to take into account rotational and cutting forces that will be applied to work piece when clamping it to faceplate If neces sary use counter weights to balance assem bly and use a dial indicator to make sure workpiece is properly positioned for your operation Machining non concentric workpieces a...

Page 36: ...ing the offset tailstock adjustment Also a torque wrench can be used with the tailstock 1 2 square drive lock down for repeating super accurate vertical alignment Figure 35 Tailstock and quill lock levers in locked position 1 2 Square Drive Lock Down Graduated Dial Increments 0 001 One Full Revolution 0 100 Increments on Quill Inch 0 4 in 0 100 Increments Positioning Tailstock 1 Rotate tailstock l...

Page 37: ...cludes smaller drill chucks drill bits and centers Note If the tooling has an open hole in the end but is too short to be exposed in the drift slot for removal then a screw can be threaded into the end of the tool to provide a solid surface for the quill pin to push against when the quill is retracted for tool removal Otherwise removal of such tool ing may be difficult 1 Use shop rag to hold tool ...

Page 38: ...igure 40 Turning a dead center To align tailstock to spindle centerline 1 Use precision level to make sure bedway is level from side to side and from front to back If bedway is not level correct this condition before continuing with this procedure refer to Leveling section in this manual 2 Center drill both ends of a piece of round stock then set it aside for use in Step 5 3 Use another piece of r...

Page 39: ...lipers to measure both ends of work piece If test stock is thicker at tailstock end move tailstock toward front of lathe 1 2 the dis tance of taper amount as shown below Move tailstock toward front of lathe 1 2 the amount of taper Looking down from above Figure 42 Adjust tailstock toward the operator If test stock is thinner at tailstock end move tailstock toward back of lathe 1 2 the distance of ...

Page 40: ...educe the heat and wear from friction Figure 44 Adapter sleeve and centers Centers Live Centers A live center has bearings that allow the center tip and the workpiece to rotate together it can be installed in the tailstock quill for higher speeds or when more tailstock force is required Mounting Dead Center in Spindle 1 DISCONNECT MACHINE FROM POWER 2 Thoroughly clean and dry tapered mating surfac...

Page 41: ...ure with the tailstock quill to securely mount the workpiece between centers Avoid overtightening the center against the workpiece or it may become difficult to remove later and it will result in excessive friction and heat which may damage the workpiece and center Figure 46 Example of using a carbide tipped dead center installed in the tailstock Carbide Tipped Dead Center Removing Center from Tai...

Page 42: ...ing will result in excessive friction and heat which may damage the workpiece or center The drill chuck attaches to the tailstock quill with the included B16 to MT 3 arbor shown in Figure 49 Matched tapers on the arbor and the inside of the chuck create a semi permanent assembly when properly joined The drill chuck can accept tooling from 1 16 1 2 Drill Chuck Arbor To assemble drill chuck and moun...

Page 43: ...r rollers so that they just touch workpiece without causing deflection Note The finger rollers should not be pre loaded against the workpiece in any great manner 8 Lock fingers with set screws and jam nuts then tighten clamp knob Figure 51 Workpiece mounted in the steady rest Steady Rest Items Needed Qty Hex Wrench 3mm 1 Open End Wrench 10mm 1 Open End Wrench 19mm 1 To install and use steady rest ...

Page 44: ...l during operation The compound rest and carriage have locks that can be tightened to provide additional rigidity dur ing operation especially during heavy cuts See Figure 53 to identify the locations of the locks for each device Note The cross slide does not have a locking provision Items Needed Qty Hex Wrench 3mm 1 Hex Wrench 6mm 1 Follow Rest Compound Rest Carriage Locks Figure 52 Follow rest a...

Page 45: ...One Full Revolution 0 100 2 54mm Items Needed Qty Wrench Open Ends 14mm 1 To set compound rest at a certain angle 1 Loosen 2 hex nuts at base of compound rest see Figure 54 Figure 54 Compound rest adjustments Compound Rest Tool Post Over extending a cutting tool from the post will increase risk of tool chatter breakage or tool loosening during operation which could cause metal pieces to be thrown ...

Page 46: ... long and as wide as the cutting tool to properly support it Below are two common methods Rough Alignment Move the tailstock center over the cross slide and use a fine ruler to measure the distance from the surface of the cross slide to the tip of the center Adjust the cutting tool height so it is the same distance above the cross slide as the tailstock center Precise Alignment Align the tip of th...

Page 47: ...ndwheel moves the slide 0 100 2 54mm Manual Feed Remove spider screws when not in use Always DISCONNECT LATHE FROM POWER when installing removing or adjusting spi der screws Ignoring this warning can lead to personal injury or machine damage The spider is especially designed for supporting gun barrels during chambering operations how ever it is a great support option for almost any long workpiece ...

Page 48: ...additional information about the variables that affect cutting speed and they are a good educational resource Also there are a large number of easy to use spindle speed calculators that can be found on the internet These sources will help you take into account the applicable variables in order to deter mine the best spindle speed for the operation Cutting Speed FPM x 12 Recommended Dia of Cut in i...

Page 49: ...er Feed If feed selection lever and half nut are engaged at same time machine damage could occur Even though there is a lock out device to prevent this it could break if forced Power Feed Controls Use Figures 62 63 and the following descrip tions to understand the power feed controls IMPORTANT Before using power feed you may have to re configure the end gears depending on how they are set up Refer...

Page 50: ...Feed Rate The feed rate chart see Figure 62 on previous page for location displays the settings for the headstock feed controls for feed rates Examining the chart you will see a series of boxes separated by slashes The top number is the carriage feed rate the bottom number is the cross slide feed rate as shown in Figure 64 Setting Cross Slide Power Feed Rate of 0 0017 in rev Using the controls on ...

Page 51: ...ev N 0 0017 in rev The end gears must be correctly set up for power feed inch or metric threading operations Use the photo below to identify the upper a gear middle 120T 127T change gears and lower b gear which are also referenced on the headstock feed and threading charts The following subsections explain how to config ure the end gears End Gears Power Feed Configuration Install either a 60T or 3...

Page 52: ...w b row 120T Gear 127T Gear a Position b Position Figure 69 Inch feed chart change gears a row b row 120T Gear a Position End Gear Configuration Example Follow the example below to better understand how to configure the end gears for inch threading Tools Needed Qty Hex Wrench 5mm 1 Hex Wrench 6mm 1 Wrench 17mm 1 Arm Support Figure 72 Arm support and end gears 120 127T Gears a Position Gear Arm Sup...

Page 53: ...how to use the threading controls and charts to set up the lathe for a threading operation If you are unfamil iar with the process of cutting threads on a lathe we strongly recommend that you read books review industry trade magazines or get formal training before attempting any threading projects Headstock Threading Controls The threading charts on the headstock face dis play the settings for inc...

Page 54: ...with the leadscrew which moves the carriage and cutting tool along the length of the workpiece for thread ing operations see Figure 78 IMPORTANT Make sure the feed selection lever is in the disengaged middle position before attempting to engage the half nut Figure 78 Apron threading controls Cross Slide Disengaged Feed Selection Lever Carriage Engaged Half Nut Lever Disengaged Feed Selection Lever...

Page 55: ...ave the half nut engaged from the beginning until the turning is complete for this type of operation When threading we recommend using the slowest speed possible and avoiding deep cuts so you are able to disengage the half nut when required and prevent an apron crash When the first thread cutting pass is complete the operator disengages the carriage from the leadscrew using the half nut lever The ...

Page 56: ...d numbered TPI use any numbered line on the thread dial see the example in Figure 83 T P I SCALE 13 1 3 5 7 1 3 5 7 Table Thread Dial Figure 83 Any number on dial for threading odd numbered TPI T P I SCALE 32 1 8 1 3 5 7 Table Thread Dial Figure 82 Any mark on dial for threading even numbered TPI Even TPI For threading even numbered TPI use any mark on the thread dial see the example in Figure 82 ...

Page 57: ...T26419 Syn O Gen Multi purpose Grease Syn O Gen Multi purpose Synthetic Grease is for mulated with 100 pure synthesized hydrocarbon base stocks to impart its remarkable properties Figure 86 T26419 Syn O Gen Grease T10439 4 Pc Carbide Insert CCMT Boring Bar Set These right hand indexable solid steel Boring Bars use 1 4 and 3 8 80 diamond inserts and feature a negative 7 end and side cutting angle I...

Page 58: ... Holder MT 3 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 91 Bald Eagle Reamer Holder MT 3 T10665 Adjustable Reamer Holder MT 3 Mount this Pacific Tool and Gauge Adjustable Reamer Holder in your lathe tailstock secure a barrel chambering reamer in the holder for free f...

Page 59: ...nited States T10719 Crown Savers for 17 to 45 Caliber Barrels 10 Pk T10720 Crown Savers for 50 Caliber Barrels 3 Pk With crown savers you never have to recrown the barrel when installing muzzle brakes or doing any job requiring a center in the end of the barrel crown Figure 97 T10720 Crown Savers Figure 96 How to Run a Lathe G4985 Machine Shop Practice Vol 1 Book G4986 Machine Shop Practice Vol 2 ...

Page 60: ...ing tools with superior cutting fluid products from Grizzly com Figure 36 Cutting fluid options from Grizzly SB1366 H7617 T24919 T24918 T10615 Quick Change Tool Holders All models are Series 200 G5699 Turning Holders 1 4 5 8 G5700 Turning Boring Holder 1 4 5 8 1 2 ø G5701 Boring Bar Holder 3 4 G5703 Morse Taper Holder MT 3 G5704 Parting Tool Holder 5 8 G5705 Knurling Tool Holder 1 4 5 8 Figure 101...

Page 61: ... electrical box will shorten the life of the VFD Daily After Operations Press the Emergency Stop button to prevent accidental startup Vacuum clean all chips and swarf from bed slides Wipe down all unpainted or machined surfaces with an oiled rag Semi Annually Change the headstock oil Page 60 Annually Change the gearbox oil Page 62 Change the apron oil Page 62 Lubricate end gears Page 64 Check leve...

Page 62: ...s lubricated by an oil bath that distributes the lubricant with the motion of the gears much like an automotive manual transmis sion Change the oil after the first 2 hours of use then semi annually Lubrication Task Frequency Pg Check Headstock Daily 63 Check Quick Change Gearbox Daily 62 Check Apron Daily 62 Bedways Daily 63 Longitudinal Leadscrew As Required Before Use 63 Ball Oilers Daily 63 End...

Page 63: ...ug from top of headstock 5 Place a 2 gallon drain pan under headstock drain plug see Figure 103 then remove drain plug Tip Use an 8 section of 3 8 NPT threaded pipe to serve as an extension drain tube after removing the drain plug 6 When headstock reservoir is empty replace drain plug and wipe up spilled oil 7 Fill headstock reservoir until oil level is approximately halfway in sight glass then re...

Page 64: ...apron oil sight glass Sight Glass Fill Plug Re install the drain plug and add oil until the level is approximately halfway in the gearbox oil sight glass then re install the fill plug Figure 105 Location of the quick change gearbox drain plug Drain Plug Quick Change Gearbox Oil Type Grizzly T23962 or ISO 68 Equivalent Oil Amount 1 Quart Check Add Frequency Daily Change Frequency Annually Checking ...

Page 65: ...ill hole and allowing it to drain out bottom 5 Replace drain plug add oil as previously described then re install fill plug 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 109 113 for their locations Figure 110 Carriage handw...

Page 66: ...leys Note You may need to disassemble a compo nent to remove broken ball oiler parts To install the new ball oiler freeze it for an hour or two then press or tap it into the bore until flush using a piece of wood Lubricating Proper lubrication of ball oilers is done with a pump type oil can that has a plastic or rubberized cone tip see Accessories section beginning on Page 55 Do not use the metal ...

Page 67: ...ion between mating surfaces can cause seizing and make later removal extremely difficult Machine Storage 4 Thoroughly clean all unpainted bare metal surfaces then apply liberal coat of way oil heavy grease or rust preventative Take care to ensure these surfaces are completely covered but that rust preventative or grease is kept off of painted surfaces 5 Lubricate machine as outlined in lubrication...

Page 68: ...rcuit breaker determine if overload is due to heavy operation ensure power source has correct voltage 3 Ensure power supply is ON has correct voltage 4 Correct motor plug wiring connections Page 84 5 Turn the thermal relay cut out dial to increase working amps and push the reset pin Replace if tripped multiple times weak relay 6 Verify circuit is rated for machine amp load troubleshoot and repair ...

Page 69: ... difficult to remove from tailstock quill 1 Quill is not retracted all the way back into the tailstock 2 Contaminants not removed from taper before inserting into quill 1 Turn the quill handwheel until it forces the tapered tool out of quill 2 Clean the taper and bore then re install tool Cross slide compound rest or carriage feed has sloppy operation 1 Gibs are out of adjustment 2 Handwheel is lo...

Page 70: ...ed and feed rate Workpiece is tapered 1 Headstock and tailstock are not properly aligned with each other 1 Re align the tailstock to the headstock spindle centerline Page 36 Chuck jaws will not move or do not move easily 1 Chips lodged in the jaws or scroll plate 1 Remove jaws clean and lubricate scroll plate then replace jaws Carriage will not feed or is hard to move 1 Gears are not all engaged 2...

Page 71: ...rew Items Needed Qty Hex Wrench 6mm 1 Hex Wrench 5mm 1 Punch Pin 2mm 1 Cross Slide Backlash 1 Feed cross slide toward front of machine until it reaches end of its travel 2 Remove cap screw that secures cross slide leadscrew nut see Figure 115 Compound Slide Backlash 1 Turn compound slide handwheel counter clockwise several turns 2 Loosen set screws on compound slide face plate several turns see Fi...

Page 72: ...n set screw until it is snug at bottom of bore The cross slide and compound slide on this lathe each use a long steel wedge called a gib that is positioned between the component and its dove tailed ways At the end of each gib is a gib screw which moves and holds the gib Depending upon which direction the gib moves the space between the sliding ways increases or decreases to control the rigidity of...

Page 73: ... slide The compound slide gib adjusts in the same manner and with the same tools as the cross slide gib However in this case to increase or decrease tension the gib adjustment screw directions are reversed Figure 120 Compound slide gib components Figure 121 Location of carriage lock Front End of Gib Front Gib Screw Figure 119 Cross slide gib components Front End of Gib Front Gib Screw Carriage Loc...

Page 74: ...acceptable 6 Hold set screws in place and tighten jam nuts 7 Move carriage again to double check gib adjustment Set Screws Gib Half Nut Adjustment The half nut mechanism can be adjusted if it becomes loose from wear The half nut is mount ed in ways with a gib exerting pressure between components to reduce sloppy movement The half nut gib is a flat bar type gib similar to the saddle gib and is tens...

Page 75: ...elt deflection 1 4 Replacing V Belts 1 DISCONNECT MACHINE FROM POWER 2 Remove end gear cover 3 Loosen motor mount bolts see Figure 124 slide motor up and remove V belts Note It may be more convenient to access the motor mount bolts if you first remove the rear splash guard 4 Install new matched set of V belts so they equally share load 5 Tension belts Refer to Tensioning V Belts on this page for i...

Page 76: ... Rotate drive hub and inspect it to see if pin is still stuck in both sides of it If one half of shear pin has fallen out and leadscrew shaft can be seen through pin hole rotate leadscrew until you see end of inner sheared pin Use 3 16 dowel punch to tap pin out through other side If shear pin halves are stuck in both sides of drive hub center punch one pin and drill 1 8 hole in pin approximately ...

Page 77: ...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 Figure 128 Feed rod clutch Items Needed Qty Hex Wrench 4mm 1 To adjust feed rod clutch 1 DISCONNECT MACHINE FROM POWER 2 Point top right dial at N then position bot tom right hand gearbox dial pointer between S and T see Figure 129 This allows ...

Page 78: ...ve any burrs ALL MATING SURFACES MUST BE ABSOLUTELY CLEAN 2 Lightly oil lint free cloth with way oil and rub thin film into pores of freshly cleaned gap surfaces Next place gap in position on lathe bed 3 Back off threaded dowel pin jam nuts until they are flush with end of pins and drop pins into pin holes in gap 4 Jostle gap closer to its final alignment until pins seat naturally 5 Install and li...

Page 79: ... 1 Dead Blow Hammer 1 Wooden Block 1 Dial Indicator 1 Hex Wrench 6mm 1 To adjust the preload 1 Run lathe for 20 minutes on high speed to bring lathe to normal temperature 2 DISCONNECT MACHINE FROM POWER Figure 133 Outboard spindle cover Outboard Spindle Cover 4 Remove end gear cover then remove out board spindle cover see Figure 133 Figure 132 Spindle speed range lever and headstock feed direction...

Page 80: ...ace wooden block over outboard end of spindle tap it a few times with a small sledge or heavy dead blow hammer Figure 135 Your goal is to slide spindle forward just enough to introduce spindle end play that you can feel by hand Figure 135 Introducing detectable end play 10 Move carriage an additional 0 100 toward headstock While tightening the inner spanner nut rock the spindle back and forth slig...

Page 81: ...pindle nose is hotter than you can com fortably keep your hand on the preload is too tight and you must repeat bearing pre load adjustment procedure When repeat ing the procedure rotate inner spanner nut a little less during Step 12 in the pre ceding instructions 12 Tighten spanner nut an additional 1 16 along its circumference See Figure 138 for exam ple of this measurement Figure 138 Final spann...

Page 82: ...ent at the time of printing but may not match your machine If you find this to be the case use the wiring diagram inside the motor junction box CAPACITORS INVERTERS Some capacitors and power inverters store an electrical charge for up to 10 minutes after being disconnected from the power source To reduce the risk of being shocked wait at least this long before working on capacitors EXPERIENCING DI...

Page 83: ...ge 82 Power Supply Connection Page 86 Spindle Switch Page 86 Control Panel Page 85 Work Light Page 86 Spindle Motor Page 84 Component Location Index DRO Figure 139 Component location index Spindle Motor Page 84 Work Light Page 86 Control Panel Page 85 Spindle Switch Page 85 Electrical Cabinet Page 82 DRO ...

Page 84: ...MS 4X1 FU1 KA1 PE 7 24B 3N 3L Ground Contactor Siemens 22E FM1 L N 1L 1N 0 24 2 3 KM1 3 L N L N Rotary ON OFF Switch 1L 1N 2L 2N FR1 Circuit Breaker Huilong DZ451 63 D14 Circuit Breaker Huilong DZ451 63 C2 7 FU2 24C 24A FU3 Circuit Breaker Huilong DZ451 63 C2 24B 24A Electrical Box Fan Tidar 12038 24V Variable Speed Drive Fuji FRN0012C2S 7C 24A 2L 2N U1 V1 W1 30B 30C 30A FWD REV CM 10G 10S 10V 24V...

Page 85: ...Model G0750GV Mfd Since 03 18 83 READ ELECTRICAL SAFETY ON PAGE 80 Electrical Cabinet Figure 140 Electrical cabinet wiring ...

Page 86: ...GV Mfd Since 03 18 READ ELECTRICAL SAFETY ON PAGE 80 Motor Wiring Figure 141 Spindle motor junction box U1 V1 W1 W2 V2 U2 Motor Ground PE 3L 3N V1 U1 W1 To Electrical Cabinet Page 82 To Electrical Cabinet Fan Page 82 ...

Page 87: ...f Control Panel Bottom of Control Panel 1 2 Minger LA125H BS542 3 4 Minger LA125 BA21 RESET Button ON Button 3 4 3 4 1 FWD Lb 2 3 24V 30A X1 COM 8 0 10V 10S 10G 2 3 RV24YN 20S B202 To Electrical Cabinet Page 82 To Electrical Cabinet Page 82 Figure 142 Control panel wiring E Stop Button RESET Button Jog Button ON Button w Light Top of Control Panel Bottom of Control Panel Spindle Speed Dial ...

Page 88: ... 250V Light Socket Spindle Rotation Switch C C NO NO NC NC 5 7 6 Hot Hot Ground 6 15 Plug As Recommended 220 VAC G L N 0 1 4 Other Component Wiring Diagrams To Electrical Cabinet Page 82 To Electrical Cabinet Page 82 To Electrical Cabinet Page 82 Figure 143 Work light wiring Figure 144 Spindle ON OFF rotation switch ...

Page 89: ...3 JAW CHUCK 6 16 P0750GV0016 HEX WRENCH 10MM 2 P0750GV0002 4 JAW INDEPENDENT CHUCK ASSEMBLY 17 P0750GV0017 HEX WRENCH 8MM 2 1 P0750GV0002 1 4 JAW INDEPENDENT CHUCK BODY 8 18 P0750GV0018 HEX WRENCH 6MM 2 2 P0750GV0002 2 4 JAW CHUCK REVERSIBLE JAW 4 PC SET 19 P0750GV0019 CHUCK WRENCH 3 JAW 3 P0750GV0003 FACEPLATE 10 D1 5 20 P0750GV0020 CHUCK WRENCH 4 JAW 4 P0750GV0004 BOTTLE FOR OIL 23 P0750GV0023 L...

Page 90: ...2125 151 117 130 165 181 170 169 173 179 117 125 114 180 182 192 193 117 193 194 195 194 131 143 106 109 108 196 132 134 182 182 129 183 184 153 151 117 126 185 150 149 152 117 127 128 186 129 182 142 113 190 191 119 147 145 185 187 188 161160 156 158 155 189 116 121 122 124 125 123 179 148 122 Headstock Internal Gears ...

Page 91: ...47T 125 P0750GV0125 EXT RETAINING RING 20MM 178 P0750GV0178 BELT PULLEY 126 P0750GV0126 BUSHING 179 P0750GV0179 SPACER 127 P0750GV0127 SPACER 180 P0750GV0180 SPACER 128 P0750GV0128 COMBO GEAR 45 40T 181 P0750GV0181 SPACER 129 P0750GV0129 FLAT WASHER 6MM 182 P0750GV0182 CAP SCREW M6 1 X 14 130 P0750GV0130 CAP SCREW M6 1 X 16 183 P0750GV0183 KEY 5 X 5 X 18 131 P0750GV0131 GEAR SHAFT 184 P0750GV0184 ...

Page 92: ... QR code to visit our Parts Store Headstock Controls 237 207 208 220 244 229 211 212 213 214 215 230 232 233 234 235 236 236 234 235 219 210 209 218 217 216 213 241 238 255 262 204 203 202 246 247 254 201 224 242 228 256 257 258 259 245 253 254 252 251 249 250 248 261 237 ...

Page 93: ...0750GV0212 GEAR 38T 247 P0750GV0247 THUMB NUT M10 1 5 213 P0750GV0213 O RING 11 2 X 2 65 248 P0750GV0248 HEX NUT M16 2 214 P0750GV0214 PINION SHAFT 249 P0750GV0249 STUD FT M16 2 X 40 215 P0750GV0215 KEY 5 X 5 X 8 250 P0750GV0250 SPIDER GUARD 216 P0750GV0216 SHAFT 251 P0750GV0251 EXT RETAINING RING 16MM 217 P0750GV0217 LOCK COLLAR 252 P0750GV0252 KNURLED THUMB SCREW M10 1 5 218 P0750GV0218 FEED DIR...

Page 94: ...8 308309 310 310 311 311 312 312 313 313 314 314 315 316 317 317 317 317 317 317 318 318 319 320 321 322 323 323 324 325 326 327 328 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 348 348 348 349 350 351 352 353 354 355 355 356 357 358 360 361 362 364 365 366 367 368 369 370 371 330 329 333 332 322 317 323 305 372 363 309 359 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387...

Page 95: ...X 5 X 18 320 P0750GV0320 KEY 4 X 4 X 145 365 P0750GV0365 CAP SCREW M6 1 X 16 321 P0750GV0321 SHAFT 366 P0750GV0366 LWR CHANGE GEAR SHAFT BRACKET 322 P0750GV0322 BEARING COVER GASKET 367 P0750GV0367 GEAR SHAFT BRACKET GASKET 323 P0750GV0323 BEARING COVER 368 P0750GV0368 OIL SEAL 22 X 35 X 7 324 P0750GV0324 KEY 5 X 5 X 18 369 P0750GV0369 LOWER CHANGE GEAR SHAFT 325 P0750GV0325 FEED ROD SHAFT 370 P07...

Page 96: ...UD FT M10 1 5 X 70 405 P0750GV0405 EXT RETAINING RING 55MM 418 P0750GV0418 GEAR 78T 406 P0750GV0406 GEAR 120T 419 P0750GV0419 GEAR 69T 407 P0750GV0407 GEAR 127T 420 P0750GV0420 GEAR 66T 408 P0750GV0408 GEAR 60T 421 P0750GV0421 GEAR 63T 409 P0750GV0409 KEY 6 X 6 X 18 422 P0750GV0422 GEAR 57T 410 P0750GV0410 BEARING HOUSING 423 P0750GV0423 GEAR 56T 411 P0750GV0411 ARM SUPPORT BUSHING 424 P0750GV0424...

Page 97: ...1 512 513 514 515 516 517 518 519 520 521 522 523 524 525 1 526 527 528 529 530 531 532 536 537 538 539 540 545 547 548 549 550 551 552 553 554 555 556 557 558 559 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 582 583 584 585 586 587 588 589 590 502 526 545 545 553 557 557 524 NOTE Thread Dial Chart Located on Headstock 580 581 ...

Page 98: ...69 P0750GV0569 CAP SCREW M6 1 X 35 520 P0750GV0520 HEX BOLT M5 8 X 20 570 P0750GV0570 PLUG 521 P0750GV0521 HALF NUT GIB 571 P0750GV0571 TOOTHED SHIFT SHAFT 522 P0750GV0522 HEX BOLT M6 1 X 10 572 P0750GV0572 CAP SCREW M6 1 X 16 523 P0750GV0523 SET SCREW M6 1 X 35 573 P0750GV0573 CLUTCH GEAR 63T 524 P0750GV0524 HEX NUT M6 1 574 P0750GV0574 CLUTCH GEAR 40T 525 P0750GV0525 DIAL INDICATOR 575 P0750GV05...

Page 99: ...QR code to visit our Parts Store Saddle 601 602 603 604 604 605 606 607 608 609 610 611 612 613 614 614 615 615 616 616 616 616 617 618 619 620 621 622 622 623 624 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 640 641 642 643 644 645 646 647 648 649 ...

Page 100: ...1 P0750GV0611 DUST PLATE 636 P0750GV0636 SET SCREW M5 8 X 16 CONE POINT 612 P0750GV0612 PHLP HD SCR M8 1 25 X 12 637 P0750GV0637 BACKLASH ADJUSTMENT NUT 613 P0750GV0613 SADDLE 638 P0750GV0638 HANDWHEEL TYPE 15 86D X M8 1 25 614 P0750GV0614 SADDLE WIPER REAR 639 P0750GV0639 GRADUATED DIAL 615 P0750GV0615 SADDLE WIPER PLATE REAR 640 P0750GV0640 THRUST BEARING 8102 616 P0750GV0616 PHLP HD SCR M5 8 X ...

Page 101: ... ONLINE AT GRIZZLY COM Scan QR code to visit our Parts Store Compound Rest Tool Post 701 702 733 703 704 705 706 707 708 708 709 710 711 712 713 714 715 716 717 718 719 720 720 721 722 723 724 725 726 727 728 730 731 732 735 736 737 738 734 739 ...

Page 102: ...708 THRUST BEARING 8101 727 P0750GV0727 COMPOUND REST GIB 709 P0750GV0709 HANDWHEEL BRACKET 728 P0750GV0728 SET SCREW M6 1 X 8 710 P0750GV0710 CAP SCREW M6 1 X 25 730 P0750GV0730 COMPRESSION SPRING 711 P0750GV0711 GRADUATED DIAL 731 P0750GV0731 ALIGNMENT PIN 712 P0750GV0712 HANDWHEEL 732 P0750GV0732 SET SCREW M10 1 5 X 14 DOG PT 713 P0750GV0713 BACKLASH ADJ NUT 733 P0750GV0733 FLANGE NUT M16 1 5 7...

Page 103: ...P0750GV0821 ROLL PIN 5 X 30 806 P0750GV0806 SET SCREW M10 1 5 X 50 822 P0750GV0822 LOCK COLLAR 807 P0750GV0807 QUILL LEADSCREW 823 P0750GV0823 CLAMP BOLT 3 7 8 808 P0750GV0808 ROLL PIN 4 X 10 824 P0750GV0824 CLAMP SHOE 809 P0750GV0809 THRUST BEARING 8101 825 P0750GV0825 FLAT WASHER 12MM 810 P0750GV0810 HANDWHEEL BRACKET 826 P0750GV0826 BASE BLOCK BOLT M12 1 75 X 110 811 P0750GV0811 GRADUATED DIAL ...

Page 104: ...915 916 918 919 920 921 922 923 924 925 926 927 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 917 910 911 912 913 922 913 911 965 966 966 966 967 967 967 968 969 970 971 971A 971 1 964A 964 964 2 964 1 973 972 906 1 906 2 906 3 906 4 906 6 906 5 908 909 918 919 ...

Page 105: ...750GV0913 CAP SCREW M6 1 X 25 955 P0750GV0955 SET SCREW M8 1 25 X 10 CONE PT 914 P0750GV0914 GAP RACK 956 P0750GV0956 ROLL PIN 5 X 40 915 P0750GV0915 GAP INSERT 957 P0750GV0957 CLUTCH ASSEMBLY 916 P0750GV0916 CAP SCREW M10 1 5 X 45 958 P0750GV0958 COMPRESSION SPRING 917 P0750GV0917 THREADED TAPER PIN 8 X 45 959 P0750GV0959 STEEL BALL 6MM 918 P0750GV0918 PHLP HD SCR M6 1 X 10 960 P0750GV0960 SHEAR ...

Page 106: ...750GV1101 KNURLED FINGER KNOB 1005 P0750GV1005 SET SCREW M6 1 X 8 1102 P0750GV1102 SET SCREW M6 1 X 6 CONE PT 1006 P0750GV1006 HEX NUT M6 1 1103 P0750GV1103 FINGER ADJUSTMENT SCREW 1007 P0750GV1007 HEX BOLT M6 1 X 30 1105 P0750GV1105 SET SCREW M6 1 X 8 1008 P0750GV1008 SET SCREW M6 1 X 16 DOG PT 1106 P0750GV1106 HEX NUT M6 1 1009 P0750GV1009 LOWER STEADY REST CASTING 1108 P0750GV1108 SET SCREW M6 ...

Page 107: ...REAKER HUILONG DZ451 63 D1 1216 3 P0750GV1216 3 LED BULB 24V MR16 1W X 3 1206 P0750GV1206 ROTARY ON OFF SWITCH 1219 P0750GV1219 SPINDLE LIMIT SWITCH 1207 P0750GV1207 CONTACTOR SIEMENS 22E FM1 1220 P0750GV1220 RESET MINGER LAH125 BW3361 1208 P0750GV1208 CIRCUIT BREAKER HUILONG DZ451 63 C2 1221 P0750GV1221 POWER MINGER LAH125 BW3361 1209 P0750GV1209 CIRCUIT BREAKER HUILONG DZ451 63 C2 1222 P0750GV12...

Page 108: ...351 1350 1349 1348 1347 1346 1345 1344 1343 1342 1354 1353 1357 1358 1356 1355 1360 1359 1361 1362 1365 1364 1363 1339 1338 1340 1335 1336 1341 1337 1325 1324 1323 1322 1321 1320 1318 1317 1334 1333 1330 1329 1328 1319 1327 1326 1331 1332 1301 1302 1367 1303 1366 1304 1305 1306 1314 1307 1308 1309 1310 1313 1311 1312 1308 1315 ...

Page 109: ...1349 CAP SCREW M5 8 X 30 1317 P0750GV1317 PHLP HD SCR M4 7 X 8 1350 P0750GV1350 Z AXIS DRO SENSOR W BNC CONNECTOR 1318 P0750GV1318 FLAT WASHER 4MM 1351 P0750GV1351 DRO SENSOR BRACKET 1319 P0750GV1319 DRO CROSS SLIDE SENSOR COVER 1352 P0750GV1352 FENDER WASHER 6MM 1320 P0750GV1320 DRO CROSS SLIDE ADAPTER PLATE 1353 P0750GV1353 LOCK WASHER 6MM 1321 P0750GV1321 CAP SCREW M5 8 X 10 1354 P0750GV1354 CA...

Page 110: ... before starting 7 Test each new workpiece setup for safe rotation start with slowest speed and stand to side of lathe until safe rotation verified 8 Keep all guards and covers in place during operation 9 Make sure lathe is properly set up before starting 10 Change coolant regularly and avoid contact with skin 11 Never leave chuck key in chuck 12 Never touch rotating chuck or workpiece with hands ...

Page 111: ... to visit our Parts Store Labels Cosmetics Rear Side 1419 1420 1421 1422 REF PART DESCRIPTION REF PART DESCRIPTION 1419 P0750GV1419 ELECTRICITY LABEL 1421 P0750GV1421 SPIDER ENTANGLEMENT LABEL 1420 P0750GV1420 HAZARD AREA CAUTION LABEL 1422 P0750GV1422 END GEAR ENTANGLEMENT LABEL ...

Page 112: ... 110 Model G0750GV Mfd Since 03 18 READ ELECTRICAL SAFETY ON PAGE 80 SECTION 10 APPENDIX Threading Feed Charts ...

Page 113: ... metalworker ____ 0 2 Years ____ 2 8 Years ____ 8 20 Years ____20 Years 6 How many of your machines or tools are Grizzly ____ 0 2 ____ 3 5 ____ 6 9 ____10 7 Do you think your machine represents a good value _____Yes _____No 8 Would you recommend Grizzly Industrial to a friend _____Yes _____No 9 Would you allow us to use your name as a reference for Grizzly customers in your area Note We never use ...

Page 114: ...D LINE FOLD ALONG DOTTED LINE GRIZZLY INDUSTRIAL INC P O BOX 2069 BELLINGHAM WA 98227 2069 Place Stamp Here Name_______________________________ Street_______________________________ City______________State______Zip______ Send a Grizzly Catalog to a friend ...

Page 115: ... shall be tried in the State of Washington County of Whatcom We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our products To take advantage of this warranty contact us by mail or phone and give us all the details We will then issue you a Return Number which must be clearly posted on the o...

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