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Grizzly G4003G Lathe User Manual

1. 15 Test Run amp Break In 16 Tailstock Setup 17 SECTION 4 OPERATION 19 Operation 19 Spindle 19 Mounting Chuck and Faceplate 20 ec 22 22 23 Follow 23 Feed Direction Lever 24 Feed Roq Lever 24 Gearbox Levers 25 Feed Rate 25 Carriage Cross Feed Lever 26 Half Nut Lever and Inch Threading 26 Change Gears and Metric Threading 28 Carriage Handwheels 29 Tool Post amp Holder 30 Tailstock Controls races 30 G4003G Gunsmith s Lathe SECTION 5 ACCESSORIES 31 SECTION 6 MAINTENANCE 33 Basic Maintenance 33 HAS e e721 33 SECTION 7 SERVICE 35 Troubleshooting 2 35 cll M 37 Bearing Preload T 38 Wiring Electrical Box 41 Wiring Motor Control Panel
2. 43 Wiring Plug Light Spindle Switch 45 SECTION 8 PARTS 47 OMI OMS INS 47 Gearbox Gearing 48 Gearbox 5 5 50 Quick Change System 52 POO 54 sce PR 56 Compound Slide 58 eH 59 Lathe Bed 60 BS TNNT 61 Feed 2 2211 63 Machine LAD CIS 2 64 Electrical Components 65 Steady amp Follow Rest Assemblies 66 WARRANTY AND RETURNS 69 He INTRODUCTION Foreword We are proud to offer the Model G4003G Gunsmith s Lathe This machine is part of a grow ing Grizzly family of fine metalworking machinery When used according to the guidelines set forth in this manual you can expect years of trouble free enjoyable operation and proof of Grizzly s com mitment to customer satisfaction We are pleased to provide this manual with the Model G4003G It was written to guide you through assembly review safety considerations and cover general operating procedures It repre sents our effort to produce the best documenta tion possible The specifications drawin
3. m 23 Steady rest in alee 2 Adjust the fingers until the bearings make contact and support the workpiece Do not over adjust the fingers or they will cause deflection in the workpiece 3 Oil the finger bearings and the rolling sur faces while in use to assist in friction free support G4003G Gunsmith s Lathe Follow Rest The follow rest is normally used with small diam eter stock to prevent the workpiece from spring ing under pressure from the turning tool We replaced the common brass wear pads at the ends of the fingers with bearings Having bearings here maintains consistent non wearing support throughout the cut The steady rest can also replace the tailstock to allow for cutting tool access at the end of your workpiece To use the follow rest 1 Secure the follow rest to the saddle with the two cap screws Figure 24 Figure 24 Follow rest secured to saddle 2 Adjust the fingers until the bearings make contact and support the workpiece Do not over adjust the fingers as to cause deflection in the workpiece 3 Lubricate the finger bearings and the rolling surfaces while in use to assist in low friction support Da Feed Direction Lever NOTICE NEVER move levers while the lathe is run ning and NEVER force any lever when shift ing If the lever will not engage rotate the chuck by hand while keeping light pressure on the lever As the chuck rotates it align
4. Twin V Belt to Gear ee Shielded and Lubricated for Life Main Specifications Operation Info SWING OME BG Oe ____________ 12 in Tm 36 in Swing Over _ _ __ _ 11 11 32 wo OVE Cio 17 in TOO BIZ __ _ 5 8 qoo ERRORES OR pP 3 1 4 Som T He 24 in Cross Slide 7 eee eee 6 1 4 in The information contained herein is deemed accurate as of 11 12 2007 and represents our most recent product specifications A Due to our ongoing improvement efforts this information may not accurately describe items previously purchased G4003G Gunsmith s Lathe o Headstock Info SM gt gt REPRINT E 1 5 8 3 5 3 1 4 _ __ mmm 5 Of Spindle ___ 9 Range Of Spindle 70 200 220 270 360 600 800 1000 1400 RPM IS ER D1 5 Lock Spindle Bearings
5. High Precision Tapered Roller Tailstock Info cues MaN 4 E E MT 3 Tailstock Barrel 2 4 1 1 12 44 4 4 AECE nenni 1 9 16 in Threading Info 1g Threads eee eee 40 Range CMGI TMC AG 4 112 Range Longitudinal mom o 0 0011 0 031 No Of Longitudinal TSO 6 _ __ 6_6_____ _ 6_6_____ _ 6 40 OSS T P 40 Range 0 0004 0 0105 in rev Of Metric NOR 29 Range Of Metric 2 ud hte aetatis adu qus de De 0 2 4 5 mm Dimensions Norm 7 1 4 TP 6 8 44 Cy ae 3 16 2 in Rest S 1 4 1 in Faceplate 2 002000000 0 TEL 10 in Leadscrow B 11 E TTE 0 870 in Feed Rod DiamMmele 0 780 Floor To dicium TE UL ULUMIHEERIO
6. 61 x 26 x 54 1 2 in FOOL PIN VV NCUA ETT 57 1 2 x 14 1 2 in Shipping Dimensions jbiovce HOUOU Wood Crate ERE m T c ee eee Machine 1500 16 TTA 9 RN E 65 x 30 x 61 in Electrical IC Mage M On Off Reverse MN o TOIT 220 Tm 5 1 2 ft gt T To 14 gauge Recommended Breaker 2G ee T ERE ere ere nm 15 FUG Motors Main hom Tet TEFC Capacitor Start Induction moz e 2 HP m E 220V PEONIO 220V gil e HH Single NN T D omm 12A jai 1725 RPM s 60 Hz OT SOC COS NR 1 E
7. NO gt m I lt I lt ANY Engage at any time ALL Engage on all lines N Engage on any Number 1 3 Engage 1 or 3 1 Engage only on 1 Figure 31 Thread dial chart G4003G Gunsmith s Lathe While other thread pitches may be achieved the G4003G is designed so that no gear changes are needed for cutting inch threads However you will have to move the feed direc tion lever to the direction of thread you want to cut and then move the feed rod lever to the right To get the needed threads in inches you will then use the standard thread chart Figure 32 to determine which positions to move the quick change levers to THREAD PER INCH 1213 4 5 617 8 4 41 45 512 6 6 7 e 1121314 Figure 32 Standard thread chart Example The desired threads are 11 threads per inch move the quick change gearbox levers to posi tions B and 5 As the thread dial chart shows engage the half nut when the thread dial reads 1 or 3 and begin your first cut When the cut is com plete disengage the half nut and return the car riage manually to the beginning of the cut Watch the dial When the 1 or the 3 on the dial comes around to the indicator mark engage the half nut Begin your second pass Repeat this process until the desired depth of cut is achieved 27 chart is divided into 3 main columns Starting Change Gears and from the left
8. 20 000 29 000 30 000 39 000 40 000 49 000 50 000 59 000 60 000 69 000 70 000 4 What 15 your age group 20 29 30 39 40 49 50 59 60 69 70 5 How long have you been a woodworker 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 names more than 3 times Yes No 10 Comments FOLD ALONG DOTTED LINE Grizzly Industrial fne GRIZZLY INDUSTRIAL INC P O BOX 2069 BELLINGHAM WA 98227 2069 FOLD ALONG DOTTED LINE Send a Grizzly Catalog to a friend TAPE ALONG EDGES PLEASE DO NOT STAPLE WARRANTY AND RETURNS Grizzly Industrial Inc warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase This warranty does not apply to defects due directly or indirectly to misuse abuse negligence accidents repairs or alterations or lack of maintenance This is Grizzly s sole written warranty and any and all warranties that may be implied by law including any merchantability or fitness for any par ticular purpose are hereby limited to the duration of this written warranty We do not warrant or represent that the merchandise complies with the
9. o e S 0 0089 0 0156 0 013110 012410 0113 40T 0 00531 0 0047 0 0044 0 0042 0 0039 0 00 EE 0 0057 0 005 _2__ 0018 0 0017 dosi entes Danes 0 0013 0 0012 0 0011 0 0011 0 0010 0 0009 0 0008 0 0007 E 0 0020 0 0017 0 00170 0016 0 0014 0 0013 0 0012 0 0011 E 0 00010 0004 Figure 28 Feed rate chart 0 0262 o o JO O JO 00 WM This symbol indicates longitudinal feed his symbol indicates cross feed rates 25 Carriage Cross Feed Lever Longitudinal and cross slide powered motions are controlled by the carriage cross feed lever The lever pivots through two stops that require moving the lever left and right as well as up and down Moving this lever upward activates the automatic longitudinal feed Moving the lever down activates the cross slide Figure 29 Re 2 Figure 29 Carriage cross feed lever in neutral position 26 Half Nut Lever and Inch Threading The half nut lever clamps and releases the half nut which clamps around the leadscrew Figure 30 The lever is only engaged while cutting threads Note f the apron feed lever is engaged the half nut lever is blocked from use and when half
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11. TIZZ Industrial mMc MODEL G4003G GUNSMITH S LATHE OWNER S MANUAL e Se Guzzi M ce COPYRIGHT MAY 2007 BY GRIZZLY INDUSTRIAL INC REVISED OCTOBER 2007 WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC 59327 PRINTED IN CHINA WARNING This manual provides critical safety instructions on the proper setup operation maintenance and service of this machine equipment Failure to read understand and follow the instructions given in this manual may result in serious personal injury including amputation electrocution or death The owner of this machine equipment 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 blade cutter integ rity 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 WARNING 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
12. e F b i MMT 4 p a f 2 SAN d 4 gt Figure 53 Adjusting the compound rest gib 97 Saddle Gib and Saddle Lock see Figure 54 The saddle is supplied with a square head bolt on the front right hand side of the slide This bolt is used to lock the saddle in place for increased rigidity when making face cuts Before making adjustments to the saddle gib make sure that this bolt is loose by turning it counter clockwise is important that the gib be properly adjusted A loose gib will cause finish problems in workpiece A gib adjusted too tightly will cause premature wear Saddle Lock E lt gt me Figure 54 Saddle lock bolt and saddle gib screws The gib for the saddle is located on the bottom of the back edge of the slide Figure 54 The ten sion on this gib is maintained by four set screws with jam nuts By loosening the jam nuts and tightening the set screws the gib will tighten Loosening the set screws will loosen the gib The gib strip is properly adjusted when a slight drag is detected while moving the apron Do not over tighten is important the four set screws are tightened evenly When tightening the jam nuts hold the set screw in position with a hex wrench 38 Bearing Preload This lathe is shipped from the factory with the spindle bearing preload adjusted If the
13. of the total length is sticking out of tool holder Tighten gib screws at affected component Replace or re sharpen cutting tool Use the recommended spindle speed Turn the quill handwheel until it forces taper out of quill Always make sure that taper surfaces are clean Tighten screw s Tighten handwheel fasteners Tighten any loose fasteners on lead screw mecha nism Remove gibs clean ways dovetails lubricate and readjust gibs Loosen gib screw s slightly lubricate bedways Slightly loosen backlash setting by loosening the locking screw and adjusting the spanner ring at the end of the handle Lubricate bedways and handles Adjust for appropriate RPM and feed rate Sharpen tooling or select a better tool for the intend ed operation Tighten gibs Lower the tool position Realign the tailstock to the headstock spindle bore center line Remove jaws clean and lubricate chuck threads and replace jaws Adjust gear positions or replace Loosen gib screw s slightly Tighten Correct for cause of shear pin breakage and replace shear pin Turn lever counterclockwise G4003G Gunsmith s Lathe Gibs There are three main gib adjustments for the Model 240030 They are the cross slide the compound slide and the saddle Cross slide Gib see Figure 52 The gib on the cross slide is adjusted by the two screws located at eac
14. 2 Loose Components Figure 4 Four Jaw Universal Chuck 1 10 1 H Oil BOtlG a etr rr ve erc nrbe das 1 gt FOOL BOX oe 1 J Three Jaw Chuck 5 3 Tailstock 1 L 3 and 4 Jaw Chuck 1 ea M Square Socket T Wrench 1 Quick Change Tool Holder 1 Change 1 27 4 1 26 00 1 1 Gear 40 tooth Installed 2 45 00 1 50 1 60 1 Gear 86 91 tooth Installed 1 P Hex Wrench Set 2 4 5 6 8 10 mm 1 ea Q Wrenches 9 11 10 12 12 14 17 19 RENTRER 1 ea Handwheel Handles 2 S Dead Center Spindle Sleeve 1 T Arbor B16 to 1 U Standard Dead Center 1 V Carbide Tipped Dead Center 1 W Live Cent
15. 452 453 454 455 456 457 458 459 461 463 464 465 466 467 468 55 Saddle 512 505 510 56 o G4003G Gunsmith s Lathe 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 518 519 520 240036 Gunsmith s Lathe Saddle Parts List PART DESCRIPTION P4003G0501 SADDLE REF PART DESCRIPTION 521 PS57M PHLP HD SCR 5 8 X 14 522 523 524 525 526 528 529 530 531 533 534 535 536 537 539 540 541 57 601 602 603 604 605 606 607 608 609 610 611 58 Compound Slide 640 604 wos 610 611 PART DESCRIPTION P4003G0601 SPECIAL SCREW 641 REF 612 613 614 615 616 617 617A 618 619 640 641 617 PART DESCRIPTION P4003G0612 BRACKET G4003G Gunsmith s Lathe Tailstock 713 715 719 3 711 6 9 720 732 721 gt E 708 714 716 704 NY RI I S 722 7d NND En 71 723 728 727 N 2 724 706 SS lt 725 e 70M 2 T 702 729 705 DESCRIPTION REF PART DESCRIPTION 702 PK136M KEY 8 X 8 X 30 717 P4003G0717 LOCK SCREW 703 400360703 QUILL 718 400300718 LOCK SHAFT 704 400360704 TAILSTOCK 719 P4003G0719 HANDLE 705 P4003G0705 BASE 720 P4003G0720 SHAFT 706 5539 SET SCREW M10 1 5 X 50 721 ROLL PIN 5 X 30 707 400360707 SPECIAL SCREW 722 P4003G0722 COLLAR 708 P4003G0708 7
16. 916 917 918 919 63 Machine Labels 1007 1002 door of electrical box 1006 1004 1002 Place on top of motor junction box 1001 4000 REF PART DESCRIPTION REF PART DESCRIPTION 1000 P4003G1000 MODEL NUMBER LABEL 1004 PLABEL 12 READ MANUAL LABEL 1001 69987 GRIZZLY NAMEPLATE 1005 P4003G1005 ENTANGLEMENT HAZARD LABEL 1002 PLABEL 14 ELECTRICITY LABEL 1006 PLABEL 11 SAFETY GLASSES LABEL 1003 400361003 DISCONNECT LABEL 1007 P4003G1007 ID LABEL AWARNING Safety labels warn about machine hazards and ways to prevent injury The owner of this machine MUST maintain the original location and readability of the labels on the machine If any label is removed or becomes unreadable REPLACE that label before using the machine again Contact Grizzly at 800 523 4777 or www grizzly com to order new labels 64 o G4003G Gunsmith s Lathe Electrical Components 1L1 3L2 5L3 JRS4 09 25d 2 STOP RESET 98 97 211 1204 GSC1 1801 GSC1 1801 1205 1206 KM1 KM2 1207 1208 1209 EI Ground 1210 1211 1214 1215 DESCRIPTION REF PART DESCRIPTION 1201 1 400341201 TRANSFORMER 1209 P4003G1209 TERMINAL BLOCK 20 1202 1210 1203 1211 1204 1212 1205 1213 1206 1214 1207 P4003G1207 GROUND TERMINAL BLOCK 1215 40036121
17. Inspect all connections on motor for loose or shorted terminals or worn insulation Install correct fuses or circuit breakers Decrease depth of cut Hefer to RPM feed rate chart for appropriate rates Sharpen or replace cutters Remove grease or oil on belt or pulleys tighten belt tensioner against low range belt Replace belt Rotate spindle by hand until gear falls into place Inspect keys and set screws Replace or tighten if necessary Tighten fan or shim cover or replace items Decrease depth of cut or feed rate Hefer to RPM feed rate chart for appropriate rates Sharpen or replace the cutting tool Readjust the gear setup with a small amount of backlash so the gears move freely and smoothly when the chuck is rotated by hand Rotate spindle by hand until gear falls into place 35 Troubleshooting Operation and Work Results Possible Cause Possible Solution Entire machine vibrates exces sively upon startup and while running Cutting tool or machine com ponents vibrate excessively dur ing cutting Can t remove tapered tool from tailstock quill Cross slide com pound rest or carriage feed has sloppy operation Cross slide compound rest or carriage feed handwheel is hard to move Bad surface fin ish Inaccurate turn ing results from one end of the workpiece to the other Chuck jaws won t move or don t move easily Carriage won t feed or hard to
18. Loud repetitious noise coming from machine at or near the motor Motor is loud when cutting Overheats or bogs down in the cut Gear change levers will not shift into position Main power panel switch is OFF Emergency switch is pushed in Circuit breaker or fuse has tripped No voltage or open connection Capacitor is at fault Motor direction switch is at fault Power switch or magnetic contactor is at fault Motor is at fault Short circuit in line cord or plug Short circuit in motor or loose connections Incorrect fuses or circuit breakers in power supply Excessive depth of cut HPM or feed rate wrong for operation Dull cutters Belt is slipping Belt is at fault Gears not aligned in headstock Pulley set screws or keys are missing or loose Motor fan is hitting the cover Excessive depth of cut or feed rate or feed rate wrong for cutting operation Cutting tool is dull Gear setup is too tight causing them to bind Gears not aligned in headstock G4003G Gunsmith s Lathe o Turn the main power panel switch ON Rotate emergency switch so it pops out Seek an electrician to troubleshoot and repair the shop power supply Test circuit replace wires and connections as required Replace capacitor Replace switch Replace power switch or magnetic contactor Replace motor Inspect cord or plug for damaged insulation and shorted wires
19. Operation Safety AWARNING Damage to your eyes lungs and ears could result from using this machine without proper protective gear Always wear safety glasses a respirator and hearing protection when operating this machine AWARNING Loose hair and cloth ing could get caught in machinery and cause seri ous personal injury Keep loose clothing and long hair away from moving machinery NOTICE If you have never used this type of machine or equipment before WE STRONGLY REC OMMEND that you read books trade maga zines or get formal training before begin ning any projects Regardless of the con tent in this section Grizzly Industrial will not be held liable for accidents caused by lack of training NOTICE Complete the Test Run amp Break In proce dure on Page 16 before using this lathe for any cutting or threading operations other wise gear box damage will occur G4003G Gunsmith s Lathe Spindle Speeds NOTICE NEVER move levers while the lathe is run ning and NEVER force any lever when shifting The spindle speed or RPM is controlled by the speed conirol levers Figure 17 Use the chart in Figure 18 to find the best spindle speed required for your task Figure 17 Spindle control levers The chart below shows the various combinations of knob positions for achieving a desired speed Example To select a spindle speed of 600 RPM move the alpha lever until th
20. Some examples of these chemicals are Lead from lead based paints e Crystalline silica from bricks cement and other masonry products e 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 equip ment such as those dust masks that are specially designed to filter out microscopic particles Table of Contents INTRODUCTION e eee 2 RENE E RR 2 ent E 2 Machine Data 3 S 5 SECTION 1 SAFETY 6 Additional Safety Instructions for Lathes 8 Glossary of Terms 9 SECTION 2 CIRCUIT REQUIREMENTS 10 220V Single Phase 10 SECTION 3 SETUP 11 Setup Safety 11 Items Needed for Setup 11 11 12 Site Considerations 19 EET 13 Mounting to Shop Floor 14 Cabinet Base Assembly 14 Lifting amp
21. ACCESSORIES Refer to the instruction manual for recom mended accessories Improper accesso ries increase risk of injury DO NOT FORCE MACHINERY Work at the speed for which the machine or acces sory was designed SECURE WORKPIECE Use clamps or a vise to hold the workpiece when practi cal A secured workpiece protects your hands and frees both hands to operate the machine DO NOT OVERREACH Maintain stability and balance at all times MANY MACHINES EJECT WORKPIECES TOWARD OPERATOR Know and avoid conditions that cause the workpiece to kickback ALWAYS LOCK MOBILE BASES IF USED BEFORE OPERATING MACHINERY CERTAIN DUST MAY BE HAZARDOUS to the respiratory systems of people and animals especially fine dust Be aware of the type of dust you are exposed to and always wear a respirator designed to filter that type of dust AWARNING Additional Safety Instructions for Lathes UNDERSTANDING THE MACHINE Read and understand this manual before operat ing machine CLEANING MACHINE To avoid entangle ment and lacerations do not clear chips by hand Use a brush and never clear chips while the lathe is operating USING CORRECT TOOLING Always select the right cutter for the job and make sure cutters are sharp The right tool decreases strain on the lathe components and reduces the risk of unsafe cutting ELIMINATING A PROJECTILE HAZARD Always remove the chuck key and never walk away from the lathe with t
22. Gear diagram Combination of Gears Metric Th reading and m Per Pitch To use the chart This lathe can cut 29 different metric threads but 1 Find the desired pitch in the chart Figure gear changes are required to cut all of the listed 34 metric threads These gear changes take place on the left hand end of the machine Figure 33 FROM LEFT RIGHT Figure 33 Change gear locations Figure 34 Metric thread chart 2 Below Per Pitch label are numbers Find the corresponding number above the desired pitch and change the right hand quick change lever to that position 3 left of the desired pitch is a small col umn with a letter This letter indicates place ment of the left hand quick change lever Move the lever to the corresponding loca tion 4 n the Combination of Gears column are small columns Please note the F and G at the top The numbers below F and G repre sent the number of gear teeth on a change gear Find the required change gears that have the corresponding number of teeth as stated in the chart to the left of the desired pitch Continued on next 28 o G4003G Gunsmith s Lathe 5 Loosen the 17mm arm support hex nut and rotate the bracket so the middle gear moves away from gear F Figure 35 Hex Socket 17mm 3mm _ 55 Socket Arm Support Hex Nut Figure 35 Change gear placement 6 Lo
23. Malu Figure 37 Quick tool post 30 Tailstock Controls The tailstock Figure 38 serves many functions The primary use is for holding centers and drill chucks The barrel has a Morse taper 3 bore and is imprinted with graduations in millimeters and inches Figure 38 controls Tailstock Handwheel Turning the handwheel advances or retracts the barrel in the tailstock The graduated dial on the handwheel is adjustable Barrel Lock Lever This lever locks the tailstock barrel in place Side Lock Lever amp Torque Tightening This removable lever locks the tailstock in place on the lathe bed The socket that it fits into will accept 12 drive torque wrench For repeating super accurate vertical alignment positioning time after time tighten the tailstock here with an inch pound torque wrench If you must you can use a foot pound torque wrench but DO NOT exceed 40 Ibs ft of torque or you may damage the ways and the tailstock When tight ening the tailstock down to the maximum torque of 40 Ibs ft the center point will be drawn down approximately 0 006 G4003G Gunsmith s Lathe SECTION 5 ACCESSORIES H6879 Lathe Operation amp Maintenance Book This detailed metal lathe book provides extensive coverage of a wide variety of metalworking opera tions Special emphasis is placed on lathe com ponents accessories and operating procedures including basic machine setup and routine main tenan
24. Refer to the Base parts breakdown on Page 61 for a detailed illustration and parts identification during the following assembly To assembly the cabinet base 1 Prepare the lathe location and drill the holes for your floor mounting fasteners 2 Position the left and right cabinets approxi mately 34 apart in the prepared location 3 Secure the front panel brackets to the cabi nets with four M6 1 x 10 Phillips head screws and flat washers 4 Install the front panel onto the panel brackets with four M6 1 x 10 Phillips head screws flat washers and hex nuts 5 With the cabinet base securely resting on the floor at your location shim between the floor and base as required to make the base assembly level from side to side and front to back as indicated with a level 6 Secure the cabinet base to the floor but DO NOT overtighten the fasteners G4003G Gunsmith s Lathe TIF 2 Move the apron toward the right to help bal Lifting amp Moving ance the load as shown in Figure 8 3 Position the chip pan on top of the base assembly so that the six lathe mounting holes AWAR N align with top holes of the cabinets 4 Un bolt the lathe from the pallet 5 Slowly raise the lathe from the pallet and move it over the cabinet base at your pre pared location 6 Position the lathe so that the six M12 1 75 x 40 hex bolts and flat washers can be inserted through the chip pan and partially threaded but not fully tight
25. correct setting When you are confident that you have adjust ed the inner spanner nut until zero spindle end play and preload exists you now must move the spanner inward and additional 0 001 to set the preload 11 preload tighten the spanner nut an additional 0 16 along its circumference See Figure 61 for the example of this measure ment Oh Woy 1 5 x orc VS gt RY ET 2 0 16 Travel Figure 61 Final spanner nut rotation 12 Without causing the inner spanner nut to tighten any further install and tighten the outer spanner nut against the inner nut Do not overtighten the outer spanner nut because additional preload can force the bearings even tighter against the races in the headstock and cause the headstock to com press crack or cause bearing failure 13 Position the gasket correctly and re install the outboard spindle cover 40 To confirm that the bearings correctly loaded 1 Make sure all safety precautions have been taken and setup steps are complete to make the lathe fully operational 2 Install the chuck and tighten the jaws 3 the spindle speed to its highest setting 4 Connect the lathe to power and turn the lathe spindle ON 5 Let the lathe run for 20 minutes 6 Turn the spindle OFF disconnect lathe from power and check the temperature of the spindle lf the spindle nose is slightly warm
26. nut lever is engaged the apron lever is blocked from use If both levers were engaged at the same time apron damage would occur After the carriage has been returned the thread dial tells you when to re engage the half nut and resume threading Figure 30 ee Screw L Figure 30 Threading dial and half nut lever When the cap screw is loosened the thread dial housing pivots so its gear can be engaged or disengaged from the lead screw When engaged the dial will turn when the lead screw and spindle are turning G4003G Gunsmith s Lathe When the half nut lever is engaged the dial stops turning By carefully engaging the half nut as the appropriate line or number passes by the indicator mark a thread can be re entered for its next pass of the cutter without wiping out the previous cut The thread dial chart listed in Figure 31 shows when to use the thread dial when cutting inch threads If a thread is divisible by 8 then you need not use the thread dial If cutting metric threads you cannot use the thread dial I 4 gt lt NO I lt O IRR oo gt ca 2 gt gt gt gt gt 2 22 gt gt lt lt re lt lt coj oo oo 1 41 2 gt 2 2 gt Z Z Z lt lt lt lt
27. of use Then every 6 months depending on usage It is recommended that a light weight non detergent oil be used Viscosity can range from 10W to 30W and may include multi viscosity oil in this same range e e Wier o nn MuR Switch Control Rod Figure 50 Lead screw feed rod and switch rod lubrication 34 Tailstock see Figure 51 The tailstock is fitted with one oiling port The tailstock barrel may be oiled directly Apply oil each week or after every five uses depending on the frequency of operation Be sure to clean the slide ways for the tailstock and lift the tailstock and squirt a few drops of oil on the ways It is a good idea to remove the tailstock once a month and wipe the bottom thoroughly and replace 2 7 4 Ei AS Figure 51 Tailstock lubrication G4003G Gunsmith s Lathe Review the troubleshooting and procedures in this section to fix your machine if a problem develops If you need replacement parts or you are unsure of your repair skills then feel free SECTION 7 SERVICE Troubleshooting to call our Technical Support at 570 546 9663 Motor amp Gearbox Possible Cause Possible Solution Motor will not start Fuses or circuit breakers trip open Machine is loud belt slips when cutting Overheats or bogs down in the cut Gear change levers will not shift into position
28. that the point will have to be refinished whenever it is removed and 5 Turn approximately 0 010 off the diameter returned to the chuck 6 Mount a dial indicator so that the plunger is on the tailstock barrel Figure 14 Looking down from above Figure 12 Finished dead center Figure 14 Adjusting for headstock end taper pe Ne 7 Measure the stock with a micrometer If the stock is wider at the tailstock end the tailstock needs to be moved toward the cutter the amount of the taper Figure 14 G4003G Gunsmith s Lathe o 17 f the stock is thinner at the tailstock end 8 Loosen the tailstock lock lever and adjust the the tailstock needs to be moved away from tailstock offset by the amount of the taper the operator by at least the amount of the by turning the adjustment set screw Figure taper Figure 15 16 Turn another 0 010 off of the stock and check for taper Repeat as necessary until the desired amount of accuracy is achieved Adjustment Screw Looking down from above Figure 15 Adjusting for tailstock end taper 25 a LAA S e NOTE T Figure 16 Tailstock adjustment locations NOTICE DO NOT forget to lock the tailstock to the ways after each adjustment 18 o G4003G Gunsmith s Lathe SECTION 4 OPERATION
29. 003G Gunsmith s Lathe o 43 MOTOR 1 5 HP 220V Single Phase Electrical Box COLOR KEY BLACK WHITE RED YELLOW s BLUE BROWN ORANGE sor Grn Ylw CONTROL PANEL GR INCHING JOG BUTTON 6 Electrical Box E 44 o G4003G Gunsmith s Lathe Wiring Plug Light Spindle Switch Figure 65 Work light wiring Figure 66 Spindle ON OFF switch G4003G Gunsmith s Lathe o 45 Ground PLUG not included Hot 6 15 Plug as recommended HALOGEN WORK LIGHT 6 Q Electrical Box 69 COLOR KEY BLACK WHITE GREEN G RED am SPINDLE ON OFF SWITCH BROWN GRAY ORANGE sor Grn Ylw View sz Electrical Box _ Ea View 46 o G4003G Gunsmith s Lathe SECTION 8 PARTS Components 2 38 REF PART DESCRIPTION REF PART DESCRIPTION 1 P4003G0001 4 JAW UNIVERSAL CHUCK 8 24 P4003G0024 CARBIDE TIP DEAD CENTER MT 3 2 25 STANDARD DEAD CENTER MT 3 3 26 4 27 5 28 6 29 7 30 9 31 10 32 11 33 12 34 13 35 14 36 15 36 1 16 36 2 17 37 18 38 19 39
30. 1113 1114 1115 1116 1117 1118 1119 m DESCRIPTION 400360206 SPECIAL WASHER 1119 1 P4003G1119 1 SPIDER SAFETY COVER 51 Quick Change System 320 316 Tv dl M 59 1 7 304 gS 314 315 io 42 8 907 22 x ut PS P a v Ns 350 327 Roch 326 f 52 o G4003G Gunsmith s Lathe REF PART 30 30 30 30 30 30 30 310 311 312 313 314 315 316 318 32 32 32 325 326 327 4 Quick Change System Parts List DESCRIPTION 400360301 LEAD SCREW 327A P4003G0327A GEARBOX ASSEMBLY 328 329 330 331 332 333 334 335 336 337 340 G4003G Gunsmith s Lathe REF PART 5 5 O 5 DESCRIPTION P4003G0341 GEAR 16T Lov G4003G Gunsmith s Lathe 54 Apron Parts List REF PART DESCRIPTION 401 P4003G0401 HANDLE 402 403 404 405 406 407 408 409 410 411 412 413 414 415 417 418 419 419 1 P4003G0419 1 SPACER 420 P4003G0420 SHAFT 420 1 P4003G0420 1 GEAR 24T 421 422 423 424 425 426 427 428 429 430 431 432 433 240036 Gunsmith s Lathe REF PART DESCRIPTION 434 PWOSM FLAT WASHER 6MM 435 436 437 438 439 440 441 442 443 444 445 447 448 449 450 451 451 1
31. 20 135 21 138 22 401 23 G4003G Gunsmith s Lathe 47 O 47 2 7 621 S cS aay S N n2 LE 025 5 Gol 2 gt lt a K ve 06 ISL 291 69 G4003G Gunsmith s Lathe 48 R 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 m F 240036 Gunsmith s Lathe Gearbox Gearing Parts List PART DESCRIPTION PR56M EXT RETAINING RING 45MM REF PART 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 DESCRIPTION 400360138 CAM LOCK P4003G0150 49 Gearbox Shifters LLLL 20 d ZOLL SLEL gee AS OLLL p VELL dd 80LL No OLLL d 9011 8011 6011 heft G4003G Gunsmith s Lathe 50 R 175 176 TY 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 198 199 20 20 20 20 20 240036 Gunsmith s Lathe m Gearbox Shifters Parts List PART DESCRIPTION P4003G0175 OIL PLUG R 20 20 20 20 210 211 212 213 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112
32. 23 P4003G0723 709 P4003G0709 BALL BEARING 8101 724 P4003G0724 BASE SHOE BLOCK 710 P4003G0710 BRACKET 725 PWO6M FLAT WASHER 12MM 711 P4003G0711 GRADUATED DIAL 726 09 HEX NUT M12 1 75 712 PSBO2M CAP SCREW M6 1 X 20 727 P4003G0727 SPECIAL NUT 713 P4003G0713 HANDWHEEL 728 5 17 CAP SCREW M4 7 X 10 714 P4003G0714 HANDLE 729 5528 SET SCREW M6 1 X 30 715 09 HEX NUT M12 1 75 731 5542 SET SCREW 8 1 25 X 50 716 P4003G0716 HANDLE 732 P4003G0732 HANDLE BASE G4003G Gunsmith s Lathe 59 Lathe Bed amp Motor G4003G Gunsmith s Lathe 60 G4003G Gunsmith s Lathe 61 REF 801 802 803 804 805 806 Lathe Bed Motor amp Base Parts List PART DESCRIPTION 2 V BELT 32 41320 806 1 806 2 806 3 806 4 806 5 806 6 807 808 809 810 811 812 813 814 815 62 REF PART 816 817 818 819 82 82 82 8 82 82 8 8 82 82 8 83 83 83 83 83 83 NIN DESCRIPTION PSB70M CAP SCREW M10 1 5 X 45 G4003G Gunsmith s Lathe Feed Rod 901 Feed Rod Parts List 917 919 918 REF PART DESCRIPTION 901 400300901 902 PSB25M SCREW 6 1 X 11 903 904 905 906 907 908 909 910 G4003G Gunsmith s Lathe REF PART DESCRIPTION 911 P4003G0911 HANDLE 912 913 914 915
33. 5 HALOGEN WORK LIGHT 1208 P4003G1208 TERMINAL BLOCK 12 POLE G4003G Gunsmith s Lathe 65 REF 1300 1301 1302 1303 1304 1305 1306 1306 1 1306 2 1307 1309 1310 1311 1312 1313 1314 66 Steady amp Follow Rest Assemblies PART DESCRIPTION 400361300 STEADY REST ASSY 1315 PART DESCRIPTION 06 FLAT WASHER 12MM PSso2M ___ 4 5 9 PSS03M SETSCREWM 1X8 PSS03M 5502 SET SCREW 6 1 6 240036 Gunsmith s Lathe CUT ALONG DOTTED LINE NARRANTY CARD Name Street City State Zip Phone Email Invoice Model Order Serial The following information is given on a voluntary basis It will be used for marketing purposes to help us develop better products and services Of course all information is strictly confidential 1 How did you learn about us Advertisement Friend Catalog Card Deck Website Other 2 Which of the following magazines do you subscribe to Cabinet Maker Popular Mechanics Today s Homeowner Family Handyman Popular Science Wood Hand Loader Popular Woodworking Wooden Boat Handy Practical Homeowner Woodshop News Home Shop Machinist Precision Shooter Woodsmith Journal of Light Cont Projects in Metal Woodwork Live Steam RC Modeler Woodworker West Model Airplane News Rifle Woodworker s Journal Modeltec Shop Notes Other Old House Journal Shotgun News 3 What is your annual household income
34. Gear and Belt Cover Spindle Speed Lever Alpha Power Light Spindle Speed Lever Numeric 3 Jaw Chuck Steady Rest Cross Feed Handwheel Halogen Work Light Follow Rest Tool Rest JO2zzI m r9onmooup G4003G Gunsmith s Lathe lt Compound Rest Handwheel Tailstock Spindle and Center Tailstock Spindle Lock Lever Tailstock Spindle Handwheel Back Splash Guard Tailstock Lead Screw Spindle ON OFF Lever Feed Rod Chip Tray Storage Cabinet Stand Mounting Points Thread Dial Half nut Lever Apron Cross Feed Lever Carriage Handwheel SECTION 1 SAFETY AWARNING 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 AWARNING A CAUTION NOTICE 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 moderat
35. T 46 1 4 in Construction Base OTIS TIC _ _ _ _ i Cast Headstock GCOMSUUCTION sivescvensecencccnnacsedacicansvareareaancneaveusnesnaensandeersasensacuassecbenssurssncneedencsniendeunemncaerevees Cast Headstock Gears Hardened Steel Bed OSI NO Induction Hardened Cast Body ences wn Cast Iron Sland ere qa Cast E veer ____________ _ __ Other 1 119 Other Specifications _____ __ ___ _ _ China MULE __________ ____ 1 Year Serial Number Location ID Label Headstock E 1 1 2 hours 3G The information contained herein is deemed accurate as of 11 12 2007 and represents our most recent product specificatior Due to our ongoing improvement efforts this information may not accurately describe items previously purchased o G4003G Gunsmith s Lathe Identification Figure 1 Model G4003G identification Quick Change Gearbox Levers Feed Rod Lever Emergency Stop RESET Button POWER START Button Inching Jog Button Feed Direction Lever
36. TION The chuck is heavy and can be awkward to handle Be aware that when removing or installing a chuck your fingers can be pinched if you allow the chuck to drop 3 with the chuck key until the cam line aligns with the spindle line mark shown in Figure 20 AWARNING Always remove the chuck key after using it Objects thrown from a lathe can cause serious injury or death to the operator or bystanders G4003G Gunsmith s Lathe Turn the other cams the same way Make sure to support the chuck with one hand as you align the last cam The chuck may come off at this point so it is important you are ready to support its weight Remove the chuck key the chuck is still tight on the spindle tap the back of the chuck with a rubber or wood mallet while supporting the bottom of the chuck with your free hand 1 the chuck does not immediately come off rotate the spindle approximately 60 and tap again Make sure all the marks on the cams and spindle are in proper alignment G4003G Gunsmith s Lathe To install a chuck 1 2 DISCONNECT LATHE FROM POWER Place a piece of plywood across the lathe bed and position it just under the spindle Align the pins in the back of the chuck with the holes on the spindle face and insert the pins While supporting the weight of the chuck turn one cam with the chuck key until the cam line is between the two V s on the spindle Do not tig
37. amage The purpose of the test run is to make sure the lathe and its safety features operate correctly To begin the test run amp break in procedure 1 sure the lathe is lubricated and the headstock oil level is full Refer to Lubrication on Page 33 2 Make sure the chuck is correctly secured to the spindle Refer to Mounting Chuck and Faceplate on Page 20 for details 3 Disengage half nut lever and the feed lever Figure 10 4 Connect power to the machine Half Nut Lever is Pulled Up i Disengaged PR 9 Spindle Rotation n ON OFF Lever is Centered Figure 10 Apron controls 5 Rotate the red stop RESET button Figure 11 clockwise so it pops out and make sure the motor direction selector points to STOP 6 Move the speed levers to B and 1 so the spindle will rotate at 70 RPM Figure 11 16 Figure 11 Headstock controls Push the POWER START button then move the spindle rotation ON OFF lever Figure 10 down until the chuck begins to turn The top of the chuck should turn toward you you hear squealing or grinding noises turn the lathe OFF immediately and correct any problem before further operation lf the problem is not readily apparent refer to Troubleshooting on Page 35 Push the emergency stop button lf the lathe does not stop turn the lathe OFF with the spindle rotation ON OFF lever and disconnect the lathe fr
38. ce A must have reference for all metal lathe owners 260 pages Figure 39 H6879 Lathe Operation amp Maintenance Book Quick Change Tool Holders All models below are Series 200 G5701 Boring Bar Holder 3 4 G5704 Parting Tool Holder G5705 Knurling Tool Holder 4 G5703 Morse Taper Holder MT 3 G5700 Turning Boring Holder 14 55 g G5699 Turning Holders 1 Figure 40 Series 200 quick change tool holders G4003G Gunsmith s Lathe H6095 Digital Readout DRO This is one of the finest DRO s on the market today Features selectable resolution down to 5um absolute incremental coordinate display arc function radius diameter function master reference datum 199 user defined tools double sealed scales inches millimeters and linear error compensation Don t be fooled by our low pric es this is only a reflection of the absence of any middlemen in the marketing structure not a reflection of the quality mn B B 2 N P Figure 41 6095 Digital Readout H5786 MT 3 x 4 Bull Nose Rolling Center H5902 MT 3 x 2 Bull Nose Rolling Center Built with precision sealed bearings designed for heavy duty use on hollow workpieces Figure 42 bull nose rolling centers 1800 523477 VO Bd H5786 MT 3 Long Nose Precision Center G7038Z Boring Bar Provides critical tool clearance Adjustable thrust G7040 Carbide Inserts for Steel 5 p
39. ce spindle end play that you can feel by hand G4003G Gunsmith s Lathe 8 10 Place a dial indicator on the cross slide and move the carriage toward the headstock until the contact point of the indicator touches the spindle face Figure 59 Figure 59 Dial indicator setup Move the carriage an additional 0 100 toward the headstock Insert the chuck key into a cam socket and prevent the spindle from turning Tighten the inner spanner nut until you see the motion of the needle in the dial indicator just barely stop moving Figure 60 During the spanner nut tightening process rock the spindle back and forth slightly with the chuck key to make sure the spindle tapered roller bearings seat properly in the tapered bearing races When the dial indicator needle stops mov ing there will be no spindle end play and no bearing preload It is essential that you find this point without tightening the spanner nut too much and inadvertently preloading the spindle bearings 280 Since it can take great effort to turn the inner spanner nut you may find it difficult to know if you have gone past the zero end play point or not You may find it easiest to have some one watch the dial for you while you tighten the inner spanner nut If you think you may have gone past the zero end play point take the time to unload the bearings as described earlier then re tighten the inner spanner nut until you know you have reached the
40. e indicator arrow points to C Move the numeric lever so it points to 3 Spindle Speed 220 600 Figure 18 Speed chart 19 Mounting Chuck and Faceplate The Model G4003G is shipped with the 3 jaw chuck installed This is a scroll type chuck mean ing that all three jaws move in unison when adjusted The 4 jaw chuck on the other hand features independent jaws This chuck is used for square or unevenly shaped stock If either chuck cannot hold your workpiece the cast iron faceplate has slots for T bolts that hold standard or custom clamping hardware With the correct clamping hardware this faceplate will hold non cylindrical parts such as castings The chucks and faceplate have a D 1 Camlock mount Please note that there are lines stamped into the cam and on the chuck body A chuck key is used to turn the locking cams Figure 19 BENCHTO S LATHE P z gt EM nd tn x 1 Figure 19 Key positioned to remove chuck A CAUTION To protect the ways when removing or installing a chuck ALWAYS place a piece of plywood over the ways Use extreme care when removing or installing a chuck so that your hands do not become trapped between the chuck and the plywood 20 remove a chuck 1 DISCONNECT LATHE FROM POWER 2 Place a piece of plywood across the lathe ways and position it just under the chuck The board should be at least 8 wide and 10 long A CAU
41. e injury It may also be used to alert against unsafe practices This symbol is used to alert the user to useful information about proper operation of the machine AWARNING Safety Instructions for Machinery READ THE ENTIRE MANUAL BEFORE STARTING MACHINERY Machinery pres ents serious injury hazards to untrained users ALWAYS USE ANSI APPROVED SAFETY GLASSES WHEN OPERATING MACHINERY Everyday eyeglasses only have impact resistant lenses they are NOT safety glasses ALWAYS WEAR A NIOSH APPROVED RESPIRATOR WHEN OPERATING MACHINERY THAT PRODUCES DUST Most types of dust wood metal etc can Cause severe respiratory illnesses 4 ALWAYS USE HEARING PROTECTION WHEN OPERATING MACHINERY Machinery noise can cause permanent hearing loss WEAR PROPER APPAREL DO NOT wear loose clothing gloves neckties rings or jewelry that can catch in moving parts Wear protective hair covering to contain long hair and wear non slip footwear NEVER OPERATE MACHINERY WHEN TIRED OR UNDER THE INFLUENCE OF DRUGS OR ALCOHOL Be mentally alert at all times when running machinery G4003G Gunsmith s Lathe 10 11 12 13 14 15 16 AWARNING Safety Instructions for Machinery 17 REMOVE ADJUSTING KEYS AND ONLY ALLOW TRAINED AND PROP ERLY SUPERVISED PERSONNEL TO OPERATE MACHINERY Make sure operation instructions are safe and clearly understood KEEP CHILDREN AND VISITORS AWAY Keep all children and visitor
42. ened into the mounting holes of the cabinets see Figure 9 You will need power lifting equipment and assistance to lift this machine and position it Inspect all lifting equipment to make sure itis in perfect working order and is rated for the load before attempting to lift and move this lathe Ignoring this warning may lead to serious personal injury or death To lift and move the lathe 1 Wrap two lifting straps around the bedway pedestals and route them behind the feed rod control rod and the lead screw as shown in Figure 8 Figure 9 Lathe mounting hex bolts 7 Shim between the lathe and cabinet base as required to make the ways level at all four corner locations as indicated with a machin ist s level 8 Fully tighten the six hex bolts to secure the lathe to the cabinet base 9 For best results recheck the ways in 24 hours Figure 8 Lifting strap locations to make sure the ways are still level and have not twisted and re shim as required 10 Install the backsplash with four M6 1 x 10 Philips head screws and flat washers as illustrated in the Lathe Bed amp Motor parts breakdown on Page 60 G4003G Gunsmith s Lathe o 15 Test Run amp Break In NOTICE NEVER shift lathe gears when lathe is operating and make sure both the half nut lever and the feed lever are disengaged before you start the lathe Otherwise the lathe will feed the apron into the chuck or tailstock causing severe lathe d
43. er 1 X 2 Phillips amp Standard Screwdrivers 1 ea Y Drill Chuck B16 1 5 13mm 1 NEA PUOIES UC RT 1 Spider 4 35 Cabinet Base Fasteners Hex Bolts M12 1 75 x 40 6 Flat Washers 12mm 6 Phillips Head Screws M6 1 x 10 12 Hex Nuts 6 1 4 Flat Washers 6mm 12 640036 Figure 4 Packaged components NOTICE Some hardware fasteners on the inventory list may arrive pre installed on the machine Check these locations before assuming that any items from the inventory list are miss ing G4003G Gunsmith s Lathe Site Considerations Floor Load Your lathe is a heavy load distributed in a small footprint Place this machine on concrete floors only The floor MUST be level or the lathe frame and ways may distort over time Placement Location Consider existing and anticipated needs service panel access length of rods to be loaded into the lathe and space for auxiliary stands work tables or other machinery when establishing a location for your lathe see Figure 5 for minimum wall clearances CAUTION Children and visitors may be seriously injured if unsuper vised Lock all entrances to the shop when you are away DO NOT allow unsupervised children or visitors in your
44. gs and photographs illustrated in this manual represent the Model G4003G as supplied when the manual was pre pared However owing to Grizzly s policy of con tinuous improvement changes may be made at any time with no obligation on the part of Grizzly For your convenience we always keep current Grizzly manuals available on our website at www grizzly com Any updates to your machine will be reflected in these manuals as soon as they are complete Visit our site often to check for the lat est updates to this manual Contact Info If you have any comments regarding this manual please write to us at the address below Grizzly Industrial Inc Technical Documentation Manager P O Box 2069 Bellingham WA 98227 2069 Email manuals grizzly com We stand behind our machines If you have any service questions or parts requests please call or write us at the location listed below Grizzly Industrial Inc 1203 Lycoming Mall Circle Muncy PA 17756 Phone 570 546 9663 Fax 800 438 5901 E Mail techsupport grizzly com Web Site http www grizzly com G4003G Gunsmith s Lathe Grizzly Industrial Customer Service 570 546 9663 To Order Call 800 523 4777 Fax 800 438 5901 MODEL G4003G GUNSMITH S BENCH TOP LATHE WITH STAND Product Dimensions ifs Mcr M 1213 Ibs SHOT
45. h end To adjust loosen the set screw located along the edge of the cross slide This set screw is provided for locking the slide for certain operations After making the adjustments detailed below tighten the set screw until it just touches the gib The gib is wedge shaped and by loosening the screw closest to the operator and then tightening the opposite screw the slide will become looser Conversely loosening the screw farthest away from the operator and tightening the closer screw will tighten the gib Do not over tighten Adjust the gib so that it creates a slight drag when the slide is in motion Test the ease of motion with the gib slightly loose Begin tightening the gib and test after making small adjustments When a slight drag is detected the gib is properly adjusted NOTICE When adjusting gibs keep in mind that the goal of gib adjustment is to remove unnec essary sloppiness from the slide movement without causing them to bind Loose gibs may cause poor finishes on the workpiece Over tightening may cause premature wear G4003G Gunsmith s Lathe p Figure 52 Adjusting the cross slide gib Compound Gib see Figure 53 The gib on the compound is adjusted by the same method as the gibs on the cross slide except the screw closest to the operator when the com pound slide is aligned with the cross slide must be loosened and the screw furthest from the operator tightened to make the gib tighter 3 r
46. he chuck key installed SECURING A WORKPIECE Make sure workpiece is properly held in chuck before starting lathe A workpiece thrown from the chuck could cause severe injury AVOIDING OVERLOADS Always use the appropriate feed and speed rates MAINTAINING A SAFE WORKPLACE Never leave lathe unattended while it is run ning AWARNING Like all machinery there is potential danger when operating this machine Accidents are frequently caused by lack of familiarity or failure to pay attention Use this machine with respect and caution to lessen the pos sibility of operator injury If normal safety precautions are overlooked or ignored seri 8 10 11 12 PREVENTING A CUTTING TOOL CHUCK CRASH Always release automatic feeds after completing a job AVOIDING STARTUP INJURIES Make sure workpiece cutting tool and tool post have adequate clearance before starting lathe Check chuck clearance and saddle clearance before starting the lathe Make sure spindle RPM is set correctly for part diameter before starting the lathe Large parts can be ejected from the chuck if the chuck speed is set too high CHUCK SAFETY Chucks are surprisingly heavy and awkward to hold so protect your hands and the lathe ways Always use a chuck cradle or piece of plywood over the lathe ways WORKPIECE SUPPORT Support a long workpiece if it extends from the headstock so it will not wobble violently when the lathe is turned ON If wo
47. hten at this time Rotate the spindle and repeat Step 4 on opposite cam Rotate the spindle and repeat Step 4 on the rest of the cams in an alternating manner When all cams are snug return to the first cam and tighten the cam completely Repeat this step with the rest of the cams 21 Centers tailstock center supports stock that is too long to be supported by the chuck alone The tailstock barrel and live center have an taper Included with this lathe is an MT 3 to MT 5 spindle sleeve If you need to install a center in the spindle when using the face plate you can do so by using this adapter sleeve Before installing any center or arbor make sure that the mating surfaces are perfectly clean These parts will last longer and remain accurate if properly maintained If oil is present on the mating surfaces the tapers will not interlock To install the center insert the end of the center into the tailstock bore until it seats Once the workpiece is installed the force of a mounted workpiece will fully seat the taper When using a live center the tailstock barrel should protrude about 2 and not more than 3 see Figure 21 To remove the live center back the tailstock barrel all the way into the tailstock casting The live cen ter will pop out Be sure to catch it when it comes out to avoid damaging the tip Figure 21 Live center installed in tailstock 22 Spider Your lathe is equip
48. inter vals Use the same oil as in the headstock Cross Slide and Compound see Figure 47 These slides are also supplied with ball fittings in their top surfaces and should be oiled the same as the saddle Figure 47 Saddle compound and cross slide lubrication G4003G Gunsmith s Lathe External Gearing see Figure 48 Apply a minimal amount of lithium grease to the teeth of the change gears Avoid getting grease on the belt or pulleys when lubricating Apply three drops of oil into the port daily Figure 48 Headstock lubrication Quick Change Gearbox see Figure 49 Lubrication for the Gearbox is provided through two oil points labeled Oil Nipple Add a squirt or two of oil after every three to four hours of use QI NP oi ete 4 Figure 49 Quick change gearbox lubrication 33 Slides and Ways Apply oil to the ways and slides after each use Wipe the ways with a clean rag prior to lubrication to ensure that no grime is carried along with your lubricant into friction sensitive areas Applying oil to the bedways and other bare metal parts also protect the lathe from rust and pitting Lead Screw and Feed Rod see Figure 50 Be sure to clean and lubricate the leadscrew feed rod and switch control rod The lead screw and feed rod have a bearing on the tail stock end sup port that will require one to two squirts of oil Headstock Gearbox The oil in the headstock should be changed after the first 2 hours
49. k bearings 60 tip and 30 clearance relief angle G7048 Carbide Inserts for Cast Iron 5 pk Figure 43 MT 3 Long Nose Center G7033 Internal Threading Tool Holder G7042 Carbide Inserts for Steel 5 pk Figure 45 2070382 Boring Bar G7050 Carbide Inserts for Cast Iron 5 pk G7030 Threading Tool Holder G7041 Carbide Inserts for Steel 5 pk G7049 Carbide Inserts for Cast Iron 5 pk Figure 44 27033 Int Threading Tool Holder 3 15 16 Gall J BO025231777 7 To Figure 46 G7030 Threading Tool Holder 32 o G4003G Gunsmith s Lathe SECTION 6 MAINTENANCE Basic Maintenance Check for the following conditions and repair or replace when necessary Loose mounting bolts and chuck Worn switch or safety features Worn or damaged cords or plug Any other condition that could hamper the safe operation of this machine Lubrication Take the time to wipe down and oil your lathe after use Do not leave metal chips and cutting fluid on the ways We recommend using ISO 68 or a gen eral motor oil unless otherwise specified Saddle see Figure 47 Apply lubrication to the saddle through the two ball fittings on the top face of the saddle and one near the saddle handwheel Make sure the oil level is 3 4 full as seen in the through the sight glass Change the oil for the first time after one month of operation and then at six month
50. lide that holds the tool holder and can be moved in and out Cutting Speed The distance that a point on a cutter moves in one minute expressed in meters or feet per minute Dial Indicator An instrument used in setup and inspection work that shows on a dial the amount of error in size or alignment of a part Facing In lathe work cutting across the end of a workpiece usually to machine a flat surface Feed The movement of a cutting tool into a workpiece Gib A tapered wedge located along a sliding member to take up wear or to ensure a proper fit G4003G Gunsmith s Lathe Headstock The major lathe component that houses the spindle and motor drive system to turn the workpiece Lathe Center A lathe accessory with a 60 point which is inserted into the headstock or tailstock of the lathe and is used to support the workpiece Leadscrew long screw that is driven by the end gears and supplies power to the carriage Saddle The upper portion of carriage that rides on the lathe ways and supports the cross feed and the follow rest Spindle The revolving shaft that holds and drives the workpiece Tailstock A moveable fixture opposite of the headstock on a lathe that has a spindle used to support one end of a workpiece and for hold ing tools Tool Post The part of the compound rest that holds the tool holder Turret A machine fixture that holds multiple tools and can be revolved and indexed to positio
51. move Tailstock quill will not feed out of tailstock 36 Workpiece is unbalanced Worn or broken gear present Chuck or faceplate has become unbalanced Spindle bearings at fault Tool holder not tight enough Cutting tool sticks too far out of tool holder lack of support Gibs are out of adjustment Dull cutting tool Incorrect spindle speed or feed rate Quill had not retracted all the way back into the tailstock Debris was not removed from taper before inserting into quill Gibs are out of adjustment Handwheel is loose Lead screw mechanism worn or out of adjust ment Gibs are loaded up with shavings or grime Gib screws are too tight Backlash setting too tight cross slide only Bedways are dry Wrong RPM or feed rate Dull tooling or poor tool selection Too much play in gibs Tool too high Headstock and tailstock are not properly aligned with each other Chips lodged in the jaws Gears are not all engaged or broken Gibs are too tight Loose screw on the feed handle Lead screw shear pin has sheared Quill lock lever is tightened down Heinstall workpiece so it is as centered with the spindle bore as possible Inspect gears and replace if necessary Rebalance chuck or faceplate contact a local machine shop for help Tighten or replace spindle bearings Check for debris clean and retighten Reinstall cutting tool so no more than
52. ms are needed to complete the setup process but are not included with your machine Description Qty Fork Lift or Hoist Rated 2000 Ibs 1 e Lifting Straps Rated 2000 Ibs 1 e Lifting Hooks Rated 2000 5 1 e Machinist s Level 1 Degreaser Solvent Cleaner as needed Shop Rags for Cleaning as needed Unpacking Your machine was carefully packaged for safe transportation Disassemble the crate and remove the packaging materials from around your machine to inspect it If you discover the machine is dam aged please immediately call Customer Service at 570 546 9663 for advice Save the containers and all packing materials for possible inspection by the carrier or its agent Otherwise filing a freight claim can be difficult When you are completely satisfied with the condi tion of your shipment inventory the contents 11 Inventory After all the parts have been removed from the boxes the following items should accompany your machine Major Components Figure 3 Qty 6 Three Jaw Chuck 5 1 1 C Follow 2 1 D Quick Change Tool Post 1 E Cabinet Base Cabinets Left amp 2 Font ciam 1 Front Panel 15
53. n Ways The precision machined and flat tracks on which the carriage and tailstock slide SECTION 2 CIRCUIT REQUIREMENTS 220V Single Phase AWARNING Serious personal injury could occur if you connect the machine to the power source before you have completed the set up pro cess DO NOT connect the machine to the power source until instructed to do so Amperage Draw The Model G4003G motor draws the following amps under maximum load Motor Draw at 220V 9 Amps Circuit Requirements We recommend connecting your machine to a dedicated and grounded circuit that is rated for the amperage given below Never replace a circuit breaker on an existing circuit with one of higher amperage without consulting a qualified electri cian to ensure compliance with wiring codes If you are unsure about the wiring codes in your area or you plan to connect your machine to a shared circuit consult a qualified electrician Minimum Power Supply Circuit 15 Amps Plug Receptacle Type Recommended Plug Receptacle NEMA 6 15 Grounded Outlet Box Current Carrying Prongs Grounding Prong Is Longest Of the Three Prongs Figure 2 NEMA 6 15 plug and receptacle 10 Grounding In the event of an electrical short grounding reduces the risk of electric shock The grounding wire in the power cord must be properly connected to the grounding prong on the plug likewise the ou
54. nual control is necessary when setting up the machine for turning or when manual movement is desired during turning operations Compound Slide Handwheel The compound slide handwheel Figure 36 controls the position of the cutting tool relative to the workpiece This slide is adjustable to any angle The graduated dial is adjustable using the same method as the dial on the cross slide Angle adjustment is locked by hex nuts on the base of the top slide Cross Slide Handwheel The cross slide handwheel moves the cross slide toward and away from the work Turning the dial clockwise moves the slide toward the workpiece The graduated dial can be adjusted by holding the handwheel with one hand and turning the dial with the other Compound Slide 27 Handwheel I e Cross Slide Handwheel NRI Carriage Handw N a Figure 36 Handwheel locations 29 Tool Post amp Holder Figure 37 shows tool post and a holder with optional bit Cutting tools can be secured and removed by tightening or loosening the clamping screws in the top of the holder A threaded stud is mounted in the top of the holder and has a knurled thumb wheel Rotating the thumb wheel allows for adjustment of the tool holder so the cutting tool can be centered The handle on the tool post can be rotated to lock and unlock the tool holder onto the dovetail ways The tool post may be rotated by loosening the nut at the top of the tool post otii
55. om power Refer to Troubleshooting on Page 35 for correction Return the spindle rotation ON OFF lever to STOP reset the emergency stop button restart the lathe and let the lathe run for a minimum of 10 minutes in both directions Turn the lathe OFF and move the speed levers to C and 1 so the spindle will rotate at 200 RPM Run the lathe in both directions for 10 minutes Repeat Step 9 for the remaining RPM ranges progressively increasing in RPM When these steps are complete the lathe is broken in Drain and refill the lubricant in the headstock with Mobil DTE Oil or an equivalent Refer to Lubrication on Page 33 for steps and apron oil change interval G4003G Gunsmith s Lathe 4 Attach a lathe dog to the bar stock from Tal Istock Setu D Step 1 and mount it between the centers as shown in Figure 13 The tailstock alignment was set at the factory with the headstock However we recommend that you take the time to ensure that the tailstock is aligned to your own desired tolerances To align the tailstock 1 Center drill a 6 long piece of bar stock on both ends Set it aside for use in Step 4 2 Make a dead center by turning a shoulder to make a shank Flip the piece over in the chuck and turn a 60 point see Figure 12 As long as it remains in the chuck the point of your center will be accurate to the spindle axis T a 9 Figure 13 Bar stock mounted on centers Note Keep in mind
56. osen 17mm gear support hex nut and slide the middle gear away from gear G 7 Use a 5mm hex wrench and remove the cap screw and remove change gear F 8 Use a 5 hex wrench and loosen the set screw in the hub of gear G and pull the gear off of the shaft 9 Replace change gears and with the gears which will produce your desired metric thread pitch and tighten the fasteners to hold the gears on the shafts 10 Slide the appropriate middle gear against gear G until they mesh with 0 002 to 0 004 backlash and tighten the cap screw 11 Rotate the appropriate middle gear against gear F until they mesh with 0 002 to 0 004 backlash and tighten the cap screw Example The desired metric pitch is 1 25mm move the quick change levers to positions 1 and C The Combination of Gears column shows that the F position change gear needs 50 teeth and the G position change gear needs 60 teeth A diagram on the left side of the chart shows that the G4003G Gunsmith s Lathe 50 tooth change gear meshes with the 91 tooth middle gear and the 60 tooth change gear mesh es with the 86 tooth middle gear Begin threading but remember you cannot use the thread dial for the metric threads You must keep the half nut lever engaged throughout the whole threading process until the threads are complete Carriage Handwheels Carriage Handwheel The carriage handwheel Figure 36 moves the carriage left or right along the bed This ma
57. ped with a set of outboard spindle supports otherwise known as a 5 der Figure 22 Use the spider when a long workpiece has the potential for wobble or vibration when it extends through the outboard side of the headstock The tips of the spider screws have brass wear pads that hold the workpiece without causing indents in the finish When installed make sure to always use the jam nuts to lock each spider screw in position Merely tightening the spider screws against the workpiece and leaving the jam nuts loose is not safe The spiders screws may loosen up during lathe opera tion and crash into the lathe end cover CAUTION Remove the spider screws when not in use Always disconnect the lathe from power when installing removing or adjusting the spider screws Ignoring this warning can lead to personal injury or machine damage G4003G Gunsmith s Lathe Steady Rest The steady rest supports long small diameter stock that otherwise could not be turned because of deflection We replaced the common brass wear pads at the ends of the fingers with bearings Having bearings here maintains consistent non wearing support throughout the cut The steady rest can also replace the tailstock to allow for cutting tool access at the end of your workpiece To use the steady rest 1 Secure the steady rest to the bedway from below with the locking plate then snug the mounting bolt Figure 23 SURE m T
58. provisions of any law or acts unless the manufacturer so warrants In no event shall Grizzly s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington County of Whatcom We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our products To take advantage of this warranty contact us by mail or phone and give us all the details We will then issue you a Return Number which must be clearly posted on the outside as well as the inside of the carton We will not accept any item back without this number Proof of purchase must accompany the merchandise The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty Please feel free to write or call us if you have any questions about the machine or the manual Thank you again for your business and continued support We hope to serve you again soon G4003G Gunsmith s Lathe o 69 TOOL WEBSITE Buy Direct and Save with Grizzly Trusted Proven and a Great Value Visit Our Website Today And Discover Why Grizzly Is The Industry Leader SECURE ORDERING
59. rkpiece extends more than 2 5 times its diameter from the chuck support it by a center or steady rest or it may deflect and fall out of the chuck while cutting AVOIDING ENTANGLEMENT INJURIES Never attempt to slow or stop the lathe chuck or mill spindle by hand and tie back long hair ponytails loose clothing and sleeves so they do not dangle Ax CAUTION No list of safety guidelines can be complete Every shop environment is different Always consider safety first as it applies to your individual working conditions Use this and other machinery with caution and respect Failure to do so could result in serious per sonal injury damage to equipment or poor ous personal injury may occur work results G4003G Gunsmith s Lathe Glossary of Terms The following is a list of common definitions terms and phrases used throughout this manual as they relate to this lathe and metalworking in general Become familiar with these terms for assembling adjusting or operating this machine Your safety is VERY important to us at Grizzly Arbor A machine shaft that supports a cutting tool Backlash Wear in a screw or gear mechanism that may result in slippage vibration and loss of tolerance Carriage A main housing that consists of the apron and the saddle Cross Slide A fixture attached to the lathe car riage that holds the compound rest and can be moved in and out Compound Rest A fixture attached to the cross s
60. s Feed Rod Lever NOTICE NEVER move levers while the lathe is run ning and NEVER force any lever when shift ing If the lever will not engage rotate the chuck by hand while keeping light pressure on the lever As the chuck rotates it aligns the gears and the lever will engage Your lathe can cut left or right while feeding or threading and it can cut across both ways for fac ing operations This feed direction is controlled by the feed direction lever shown in Figure 25 When the selection knob is positioned as depict ed in Figure 25 the carriage will move to the right along the bed or the cross feed will travel away from the operator The cross feed and longitudinal feed selection is controlled on the apron Industrial nc Motor 1 1 2HP 220V Sing Swing Over Bed 12 Swing Over Gap 17 1 2 Figure 25 Feed direction lever To reverse the direction of the feeding or thread ing operation stop the lathe move the feed direc tion lever to the right When the lever is positioned in the middle no direction is selected and all of the drive mecha nisms after this point are in neutral 24 the gears and the lever will engage The feed rod can be selected by moving the lever to the left as in Figure 26 Use this position for all feed operations When the lever is positioned straight up no drive mechanism is selected and the gear train down stream 15 in neutral When the lever is mo
61. s a safe dis tance from the work area MAKE WORKSHOP CHILDPROOF Use padlocks master switches and remove start switch keys NEVER LEAVE WHEN MACHINE IS RUNNING Turn power OFF and allow all moving parts to come to a complete stop before leaving machine unattended DO NOT USE IN DANGEROUS ENVIRONMENTS DO NOT use machin ery in damp wet locations or where any flammable or noxious fumes may exist KEEP WORK AREA CLEAN AND WELL LIGHTED Clutter and dark shadows may Cause accidents USE A GROUNDED EXTENSION CORD RATED FOR THE MACHINE AMPERAGE Grounded cords minimize shock hazards Undersized cords create excessive heat Always replace damaged extension cords ALWAYS DISCONNECT FROM POWER SOURCE BEFORE SERVICING MACHINERY Make sure switch is in OFF position before reconnecting MAINTAIN MACHINERY WITH CARE Keep blades sharp and clean for best and safest performance Follow instructions for lubricating and changing accessories MAKE SURE GUARDS ARE IN PLACE AND WORK CORRECTLY BEFORE USING MACHINERY G4003G Gunsmith s Lathe 18 19 20 21 22 23 24 25 WRENCHES Make a habit of checking for keys and adjusting wrenches before turn ing machinery ON CHECK FOR DAMAGED PARTS BEFORE USING MACHINERY Check for binding or misaligned parts broken parts loose bolts and any other conditions that may impair machine operation Repair or replace damaged parts before operation USE RECOMMENDED
62. shop at any time Keep Workpiece Loading Area Unobstructed unpainted surfaces are coated with waxy oil to prevent corrosion during shipment Remove this protective coating with a solvent cleaner or citrus based degreaser such as Grizzly s G7895 Citrus Degreaser To clean thoroughly some parts must be removed AWARNING Gasoline and petroleum products have low flash points and can explode or cause fire if used to clean machinery DO NOT use these products to clean the machinery A CAUTION Many cleaning solvents are toxic if inhaled Minimize your risk by only using these products ina well ventilated area Figure 5 Minimum wall clearances G4003G Gunsmith s Lathe 3 Mounting to Shop Floor We recommend that you bolt your lathe to the floor Because floor materials may vary floor mounting hardware is not included Since this is a precision machine it is important to level the machine with a precision level when mounting Bolting to Concrete Floors Lag shield anchors with lag bolts Figure 6 and anchor studs Figure 7 are two popular meth ods for anchoring an object to a concrete floor We suggest you research the many options and methods for mounting your machine and choose the best that fits your specific application Pip m Figure 7 Typical anchor stud 14 Cabinet Base Assembly
63. spindle ever develops a bit of end play and the workpiece finish suffers you can adjust the bearing pre load to remove the end play and improve the workpiece finish Adjusting the bearing preload requires using a spanner wrench or a punch and hammer You can either purchase the spanner wrench at a tool store or fabricate one using the diagram shown below in Figure 55 Fabricate pin to 7 32 D x 1 4 L and weld Figure 55 Spanner wrench diagram To adjust the preload 1 Run the lathe for 20 minutes on high speed to bring the lathe to a normal temperature 2 DISCONNECT THE LATHE FROM THE POWER SOURCE 3 Remove the chuck shift the spindle to neu tral then remove the outboard spindle cover Figure 56 Outboard Spindle G4003G Gunsmith s Lathe 4 Place the chuck key the cam lock socket and keep the spindle from rotating 5 Using a spanner wrench or hammer and punch loosen the outer spanner lock nut Figure 57 counterclockwise and remove it Outboard 4 Spindle Nut Figure 57 Loosening outboard spindle nut 6 Loosen the inner spanner nut one turn Note You may have to tap on the outboard spindle tube as explained in Step 7 to help unload the spindle and break the spanner nut loose 7 Place a wooden block over the outboard end of the spindle hit it soundly with a small sledge or heavy dead blow hammer Figure 58 Your goal is to slide the spindle forward just enough to introdu
64. taining gentle pressure on the lever G4003G Gunsmith s Lathe Feed Rate Chart The far left column in the feed rate chart Figure 28 shows which change gears must be installed so the chart will be accurate To make a longitudinal cut in inches use the bottom portion of the chart If the desired feed rate is 0 0062 revolution look at the longitudinal ranges According to the chart we would put the left hand lever in the C position and the right hand lever in the 4 position Metric calculations would be done the same way but you would use the upper half of the chart To perform a cross feed cut with a feed rate of 0 0013 move the left hand lever to the D position and the right hand lever to the 1 position Please note that when either of the two selector levers are left in the down position the drive train downstream from this point is in neutral uiis mm 25 222 n es 0 396 0 351 0 338 0 316 0 287 0 264 0 243 0 226 1 0 107 0 098 0 089 0 063 0 077 198 0 175 0 167 0 158 0 144 0 132 0 122 0 113 0 7 0060 0087 054 0045 0042 0156 0 099 0 088 0 083 0 079 0 072 0 066 0 061 0057 0 038 0 030 0 028 0 027 0 025 0 022 0 021 0 019 0 044 0 042 0 040 0 036 0 033 0 031 0 028 foor7 oois oora o 0rs oor oor o Jud 2 olo x lo
65. tlet must be properly installed and grounded All electrical connections must be made in accor dance with local codes and ordinances AWARNING Electrocution or fire could result if this machine is not grounded correctly or if your electrical con figuration does not com ply with local and state codes Ensure compliance by checking with a quali fied electrician Extension Cords We do not recommend the use of extension cords Instead arrange the placement of your equipment and the installed wiring to eliminate the need for extension cords If you find it absolutely necessary to use an exten sion cord at 220V with your machine e Use at least a 14 gauge cord that does not exceed 50 feet in length extension cord must also contain a ground wire and plug pin qualified electrician MUST size cords over 50 feet long to prevent motor damage G4003G Gunsmith s Lathe SECTION 3 SETUP Setup Safety AWARNING This machine presents serious injury hazards to untrained users Read through this entire manu al to become familiar with the controls and opera tions before starting the machine AWARNING Wear safety glasses dur ing the entire set up pro cess AWARNING This machine and its com ponents are very heavy Use power lifting equip ment such as a fork lift or hoist to move heavy items G4003G Gunsmith s Lathe ltems Needed for Setup The following ite
66. to the touch you have correct bearing preload the spindle nose is hotter than you can comfortably keep your hand on the pre load is too tight and you must repeat bear ing preload adjustment procedure G4003G Gunsmith s Lathe Wiring Electrical Box m E adc L Ji te oz Sc pz 52 22 OC B A HUILONG 07451 63 n V 0 60 2 20 21 20 22 20 24 20 25 20 26 Figure 62 Electrical box wiring G4003G Gunsmith s Lathe o 41 Industrial Inc COLOR KEY BLACK WHITE RED 20 25 380V 20 26 400V BLUE BROWN ORANGE mOr fee Grn Ylw NH LL T 0 2561 1801 eg 921 71 22 110 2561 1801 2 21 122 6 8 U2 121 122 1 11 2 H 6 7 L IN 992 21 22 aul To To Work Light Power Source Motor Control Panel Spindle Switch 42 G4003G Gunsmith s Lathe 9 Wiring Motor amp Control Panel is in motion s 64 Control G4
67. ved to the right the lead screw is selected for threading operations THREADS PER INCH AW D 7111213 215 6 718 4 190 54617 18181812012212412628 32 36 38 401444852 56 6417276 1 1 4 2 Figure 26 Feed rod lever G4003G Gunsmith s Lathe Gearbox Levers NOTICE NEVER move levers while the lathe is run ning and NEVER force any lever when shift ing If the lever will not engage rotate the chuck by hand while keeping light pressure on the lever As the chuck rotates it aligns the gears and the lever will engage The two levers Figure 27 at the bottom of the headstock change the feed rate or the number of threads cut per inch The left hand lever engages in alpha positions A B C D and E and the right hand lever engages in numeric positions 1 2 3 4 5 6 7 and 8 Use the feed rate chart shown in Figure 28 to position the quick change gearbox levers Figure 27 Quick change gearbox To change the position of the feed selector pull the knurled handle This disengages a pin which is inserted into a selection hole Position the lever in the down position and slide to the right or left until it is positioned below the desired selection hole Raise the lever with one hand while pulling the handle with the other The pin at the end of the lever should align with the selection hole If it does not rotate the feed rod or chuck by hand while main

Grizzly G4003G Lathe User Manual

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