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MODEL G4000 9" X 19" BENCH LATHE

1. Figure 77 Daily lubrication chart 48 7 Model G4000 Mfg Since 8 09 Carriage Tailstock Ball Oiler lt Failure to followed reasonable lubrication practices as instructed in this manual for your lathe could lead to premature failure of your lathe and will void the warranty Model G4000 Mig Since 8 09 4 m lie LJ Bedways Hack Full Length a Full Length Leadscrew Full Length Tre 3 mena Figure 81 Rack leadscrew and bedways 49 SECTION 7 SERVICE Review the troubleshooting and procedures in this section if a problem develops with your machine If you need replacement parts or additional help with a procedure call our Technical Support Note Please gather the serial number and manufacture date of your machine before calling Troubleshooting Motor amp Electrical Possible Cause Possible Solution Machine does not start or a breaker trips Machine stalls or is underpowered Machine has vibration or noisy operation Power supply switched OFF or at fault Plug receptacle at fault wired wrong Motor connection wired wrong Wall circuit breaker tripped Wiring open has high resistance Spindle switch at fault Start capacitor at fault Centrifugal switch at fault Motor at fault Feed rate cutting speed too fast Wrong workpiece material Belt s slipping Motor wired incorrectly Plug receptacle at
2. 7 Industrial Inc MODEL G4000 9 X 19 BENCH LATHE OWNER S MANUAL COPYRIGHT O APRIL 2009 BY GRIZZLY INDUSTRIAL INC REVISED DECEMBER 2015 MN WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC FOR MODELS MANUFACTURED SINCE 8 09 TS11444 PRINTED IN CHINA WARNING This manual provides critical safety instructions on the proper setup operation maintenance and service of this machine tool Save this document refer to it often and use it to instruct other operators Failure to read understand and follow the instructions in this manual may result in fire or serious personal injury including amputation electrocution or death The owner of this machine tool is solely responsible for its safe use This responsibility includes but is not limited to proper installation in a safe environment personnel training and usage authorization proper inspection and maintenance manual availability and compre hension application of safety devices cutting sanding grinding tool integrity and the usage of personal protective equipment The manufacturer will not be held liable for injury or property damage from negligence improper training machine modifications or misuse WARNING Some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to the State of C
3. E 126C 129 REF PART f DESCRIPTION 1 3 JAW CHUCK BACK PLATE SET SCREW M4 7 X 5 SHAFT 19A 20 0 0 0 0 0 0 0 0 0 2 3 4 5 2 3 4 5 u 6 7 8 9 0 1 8 Model 54000 Mfg Since 8 09 Drive Belt REF PART DESCRIPTION BRACKET PLATE CAP SCREW M5 8 X 20 IDLER PULLEY SHAFT 04 FLAT WASHER 10MM 05 LOCK WASHER 10MM 07 09 12 13 15 17A 19A P4000219A MOTOR PULLEY CHINA MOTOR Model G4000 Mig Since 8 09 REF PART DESCRIPTION 26 27 28 29 4000229 LAT WASHER 6MM 30 4000230 CAP SCREW 6 1 X 10 57 Belt Tension Lever REF PART DESCRIPTION 03 LEVER BRACKET ASSEMBLY P4000310 FLAT WASHER 10MM P4000311 HEX NUT M10 1 5 P4000312 SPRING RING REF PART DESCRIPTION 14 19 320 321 322 13 4000313 TENSION SPRING 58 P4000324 KNOB Model G4000 Mig Since 8 09 Change Gears 409 REF PART f DESCRIPTION 01 P4000401 02 03 04 05 0 0 0 0 1 11 12 Model G4000 Mfg Since 8 09 re 8 dH N O cO REF PART DESCRIPTION SPACER FLAT WASHER 6MM CAP SCREW M6 1 X 10 LOCK WASHER 6MM 59 REF PART DESCRIPTION O1 04 06B 06C 7 8 09 oi IT ja O1 10 P4000510 PHLP HD SCR M5 8 X 10 11 P400051 1 MOTOR 3 4HP 110V 60HZ 1 OT 1 2 11 3 12 GO O1 OT O1
4. Lifting straps properly positioned Attach the lifting straps to the power lifting equipment have an assistant steady the load then lift it just enough to clear any obstacles and move it to its mounting position Properly mount the lathe as instructed in the Mounting subsection on Page 15 Model G4000 Mfg Since 8 09 Mounting The chip pan and the base of the lathe have holes that allow the machine to be mounted to a workbench You MUST mount your machine to a workbench to prevent it from unexpectedly moving during operation which could lead to personal injury or property damage Follow these guidelines when mounting your lathe to ensure safe and accurate cutting results e Make sure that the workbench can adequate ly support the weight of the machine and materials and that it will not move or vibrate during operation e Use bolts which is the largest diameter fastener that the holes in the lathe and chip pan will accommodate When using hex nuts apply thread locking fluid to ensure they do not come loose Use a quality silicone sealant between the lathe and the chip pan to prevent coolant and other fluids leaking through onto the work bench or floor To ensure accurate results from your lathe use a precision level to make the lathe bedway exactly level from side to side and front to back If necessary use shims between the lathe and chip pan Note Re check the bedway after 24 hours after two
5. N P4000707 P4000708 SET SCREW M4 7 X 12 N 70 N no N B N NIN OT N N N z N NIN N O gt 7017 U U U O O IO O O O Oo o NIN NININ AIR N O1 N Model G4000 Mfg Since 8 09 REF PART f DESCRIPTION 44 45 46 47 53A THREAD DIAL BODY ASSEMBLY 54 WORM GEAR 64T 55 SHAFT 56 P4000756 KEY3X3X10 57 4000757 LOCK WASHER 8MM 63 CAP SCREW M6 1 X 60 64 APRON REAR COVER 65 CAP SCREW M5 8 X 12 66 P4000766 ROLL PIN 3 X 16 67 P4000767 HANDWHEEL FLAT WASHER 76 77 78 7 8 81 82 63 Saddle 8 Cross Slide DESCRIPTION 01 4000801 SADDLE 02 4000802 CROSS SLIDE REF PART f 0 0 0 1 1 moi R 805 806 807 808 1 P4000812 SPRING PLATE P4000813 HANDWHEEL 14 P4000814 SPECIAL HEX NUT Co O 5 8 1 20 21 8 8 8 j 818 8 819 828 827 REF PART DESCRIPTION P4000822 SET SCREW M4 7 X 12 HEX NUT M4 7 SADDLE GIB CLAMP FLAT WASHER 6MM CAP SCREW M6 1 X 16 CLIP FRONT WAY WIPER Model G4000 Mfg Since 8 09 Compound Slide REF PART DESCRIPTION 01 02 03 04 05 07 08 10 1 13 18 19 20 P4000920 5 TOOL CLAMP Model G4000 Mfg
6. 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 Model G4000 Mfg Since 8 09 AWARNING Serious injury could occur if you connect machine to power before completing setup process DO NOT connect to power until instructed later in this manual 110V Circuit Requirements This machine is prewired to operate on a power supply circuit that has a verified ground and meets the following requirements Nominal Voltage 110V 115V 120V cn 60 Hz PAS Single Phase Power Supply Circuit 15 Amps A power supply circuit includes all electrical equipment between the breaker box or fuse panel in the building and the machine The power sup ply circuit used for this machine must be sized to safely handle the full load current drawn from the machine for an extended period of time If this machine is connected to a circuit protected by fuses use a time delay fuse marked D CAUTION For your own safety and protection of property consulit an electrician if you are unsure about wiring practices or electrical codes in your area Note Circuit requirements in this manual apply to a dedicated circuit where only one machine will be running on the circuit at a time If ma
7. EE EE EEE 293 Ibs FIN 41x22x20 in Most Smp UNTON EE Yes Electrical PONTA 110V Single Phase 60 Hz Fre five no at kife tj pi ket te ey gp des e lake el yi n e kf el tn a oi Se ata ekip 110V Current RAINE uuu u ete ne EE 11 6A vulg RTE MEG NE el T NY 15A CONNECCION re OT Cord 8 Plug Puh OL e aa ty TT Uc Yes PONS Cord EEE 6 ft PFA 12 AWG DT a uu EEE EE EE EN tt e pit a NE Yes Nede PN Pp 5 15 SE ZY Forward Reverse Switch Motors Main uo a akr k is ia be a a PO ODP Capacitor Start Induction Ho 3 4 HP batt ko e OE e ii AS a edi ta ee pete bato a CAGE E Single Phase BAS 11 6A EEC CE PC 1725 FT Belt Drive PEN L petet tee po se peta IPM RUE Shielded 8 Permanently Lubricated Main Specifications Operation Info EE EN 8 3 4 in Distante Between OPONIE uu uuu uuu l OGAE TOU TERT 19 in MT Te WING VCP EE EE PHQ Maximum Tool Bit 2 hr EEE 1 2 in ro qp efe ao TAVE es an NE em 1 7 8 in Se SI AN EEE EE NE EE EN EE 16 in jl LE La m 4 1 4 in 4 o Model G4000 Mfg Since 8 09 Headstock Info PEBER 0 78 in ji ZE NE E 39 mm MLE TDN MT 3 ETEN en 4 TPI Number of Spindle Eve 6 Spindle SEES uuu il ii uu a
8. MAINTENANCE 47 Schedule 47 Cleaning 8 Protecting 47 LIDE ATOM uuu 47 Daily Lubrication Chart 48 SECTION 7 SERVICE 50 Troubleshooting eese 50 Adjusting Gibs 52 Compound Slide Backlash 53 Adjusting Half Nut 53 SECTION 8 WIRING 54 Wiring Safety Instructions 54 Wiring Diagram 55 SECTION 9 PARTS 56 METT 56 Drive of Belt Tension Lever 58 Change Gears 59 Flectrical amp teb UE 60 Quick Change Gears 61 Apron Breakdown 62 Saddle 8 Cross Slide 64 Compound Slide 65 MEAS CV C 66 Steady Rest 67 FOO Reg 68 aoe ere ee oe 69 Label Placement 70 WARRANTY AND RETURNS 73 INTRODUCTI
9. Since 8 09 uu d W cO O O O O O cO N cO co cO NIOJ gt A W REF PART DESCRIPTION 4 WAY TOOL POST LOCK HANDLE FLAT WASHER 6MM REF PART f 001 00 00 008 010 01 01 014 DESCRIPTION Tailstock 1006 REF PART f DESCRIPTION o Model G4000 Mfg Since 8 09 Steady Rest 1101A REF PART DESCRIPTION 1101 P40001101 STEADY REST CASTING 1101A P40001101A STEADY REST ASSEMBLY 1102 P40001102 STEADY REST FINGERS 3 PC 1103 P40001103 SPECIAL SCREW REF PART DESCRIPTION 1105 P40001105 HEX NUT M8 1 25 1106 P40001106 ADJUSTING SCREW 1107 40001107 CLAMPING PLATE 1108 P40001108 HEX BOLT M8 1 25 X 60 1109 P40001109 FLAT WASHER 8MM 1104 P40001104 LOCK WASHER 8MM Model G4000 Mig Since 8 09 o 67 Follow Rest lt 1201V2 24 T 1207 1205 1208 REF PART DESCRIPTION REF PART DESCRIPTION 1201 40001201 FOLLOW REST CASTING 1205 40001205 EX NUT M8 1 25 1201V2 P40001201V2 FOLLOW REST ASSEMBLY 2 01 09 1206 40001206 FLAT WASHER 8MM 1202 1 40001202 FOLLOW REST FINGER 2PC SET 1207 1 40001207 CAP SCREW M6 1 X 30 1203 40001203 SPECIAL SCREW 1208 1 40001208 LAT WASHER 6MM 1204 4000120
10. increase the risk of serious per sonal injury fire or machine damage If you notice that any wires or components are damaged while performing a wiring task replace those wires or components MOTOR WIRING The motor wiring shown in these diagrams is current at the time of printing but may not match your machine If you find this to be the case use the wiring diagram inside the motor junction box 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 DIFFICULTIES If you are expe riencing difficulties understanding the information included in this section contact our Technical Support at 570 546 9663 COLOR KEY YELLOW Y YELLOW GREEN BLUE Gr Gy PURPLE ale Z PINK auolsE TT LIGHT BLUE Model G4000 Mig Since 8 09 Wiring Diagram Spindle Switch awa qore VER SHOCK HAZARD Disconnect power before working on Start Capacitor 100MFD 250VAC Run Capacitor 20MFD 450VAC Hot Hot Ground NEMA 5 15 Plug As Recommended Motor Model G4000 Mfg Since 8 09 D READ 55 SECTION 9 PARTS Headstock 113 112 piti 110 134
11. out and inventory them lf any non proprietary parts are missing e g a nut or a washer we will gladly replace them or for the sake of expediency replacements can be obtained at your local hardware store Inventory Figures 3 4 Qty A Faceplate 7 2 1 4 Jaw Chuck 74 1 C 3 Jaw Chuck 1 1 D Reverse Jaws for 3 Jaw Chuck 1 Set E C Type Tool Holder 1 F Dead Center 2 1 Dead Center 1 H Live Center MT 2 1 l Change Gears 30 2 SOT GE re 1 42 Gear 1 1 80 2 TOO BOX ERST 1 K Standard 8 Phillips Screwdrivers 1 Each M Hex Wrenches 1 5 2 4 5 6mm 1 Each Figure 4 Model 64000 inventory 2 N Ol B0Ile a 1 O Belt Tension Lever Knob 1 pP kb lo sezi kestion 2 N OTI CE 3 Jaw Chuck 1 If you cannot find an item on this list care 4 Jaw Chuck 1 check around inside the machine and S Hardware Not Shown packaging materials Often
12. replace centrifugal switch if available Correctly secure workpiece in chuck faceplate Inspect replace damaged bolts nuts and re tighten with thread locking fluid Inspect replace belts Realign replace shaft pulley set screw and key Adjust feet shim or tighten mounting hardware Fix replace fan cover replace loose damaged fan Replace sharpen bit index bit to workpiece use correct feed rate and spindle speed Center workpiece in chuck or face plate replace defective chuck Test by rotating shaft replace if grinding 10 Replace switch 11 Replace bad gear s bearing s Model G4000 Mfg Since 8 09 Operations Possible Cause Possible Solution Bad surface finish 1 Incorrect spindle speed or feed rate 1 Adjust for proper spindle speed and feed rate Page 32 2 Dull tool or poor tool selection 2 Use sharp tools use correct tool for the operation 3 Too much play in gibs 3 Adjust gibs Page 52 4 Tool too high 4 Lower tool position Cannot remove 1 Quill not retracted all the way back into the 1 Rotate the quill handwheel until the tapered tool is tapered tool from tailstock forced out of quill tailstock quill 2 Debris oil not removed from tapered mating 2 Always make sure that tapered mating surfaces are surfaces before inserting into quill clean before inserting Gear s will not line 1 Gear s not aligned 1 Rotate spindle by hand until gear s falls into place
13. safely hold the workpiece in place during operation Otherwise the workpiece will leave the lathe when the spindle rotates and could cause serious per sonal injury or property damage 25 Live Centers The dead center achieves a more accurate fin ished product but requires low spindle speeds to avoid heat from friction damaging the center of workpiece The live center has bearings that allow the center tip and the workpiece to rotate together and can be installed in the tailstock quill for higher speeds and less time spent lubricating the tip but with a slight bit of accuracy loss Using Dead Center in the Spindle 1 2 To or DISCONNECT LATHE FROM POWER Thoroughly clean the tapered mating sur faces of the spindle bore and the MT 3 dead center then insert the center into the spindle bore through the chuck or faceplate Install a lathe dog on the workpiece then mount the workpiece between the spindle and tailstock centers with the lathe dog inserted into the chuck or faceplate see Figure 27 on the previous page for an example To remove the center from the spindle insert a piece of round bar stock or similar tool through the outboard end on the left side of the headstock then tap the center loose Note Hold onto the center as you tap it loose to avoid dropping it and damaging the tip or the bedways NOTICE avoid premature wear of the dead center damage to the workpiece alw
14. to prevent flexing of the workpiece from the pressure of the cutting tool This rest requires only two fingers as the cutting tool acts as the third support Figure 36 Follow rest The follow rest is installed removed with two cap screws at the base The fingers are set against the workpiece in the same manner as those of the steady rest Always lubricate the finger tips with an anti seize grease during operation 30 Cross Slide Handwheel Dial Increments Distance One Increment 0 025mm approx 0 001 One Full Rotation 1 250mm approx 0 050 The cross slide sits directly on the carriage saddle and moves the cutting tool perpendicular to the workpiece when the handwheel is rotated see Figure 37 Cross Slide Cross Slide Dial 1 Handwheel Y ME Figure 37 Cross slide compound slide removed for photo clarity The cross slide dial on your lathe has a 2 1 ratio This means e The dial shows the actual distance the tool moves in or out e he amount removed from the workpiece will be twice the distance the dial indicates For example if you wanted to remove 0 200 from the diameter of the workpiece you would rotate the cross slide handwheel only 0 100 as indi cated on the dial Model G4000 Mig Since 8 09 Compound Slide Handwheel Dial Increments Distance One Increment nnn 0 001 One Full Rotation 0 040 The compound
15. weeks then annually to make sure it remains level AWARNING Unexpected movement of the lathe during operation could draw the operator s hands or body into the moving parts of the machine Make sure this machine is properly secured to a stable workbench or stand before con necting it to power Model G4000 Mig Since 8 09 The strongest of the two mounting methods illustrated in this section is the Through Mount method In this method holes are drilled all the way through the workbench and hex bolts washers and hex nuts are used to secure the lathe and chip pan to the workbench as illustrated in Figure 7 Flat Washer Silicone 2 Z Workbench ZZ MAN MIS ZZ WU 7 Z Flat Washer Lock Washer Hex Nut Figure 7 Example of a through mount setup Another option for mounting is a Direct Mount where the machine is simply secured to the work bench with a lag screw as illustrated in Figure 8 Lag Bolt Flat Washer Silicone Sealant Chip Pan A ZA Figure 8 Example of a direct mount setup 15 Belt Tensioning Lever Knob Thread the knob onto the belt tensioning lever as Belt Tensioning Lever Knob shown in Figure 9 Test Run Test run your machine to make sure it runs prop erly If during the test run you cannot easily locate the source of an unusual noise or vibration stop using the machine immediately then review the Troubleshooting on Page 50 If you stil
16. workpiece can fly off spindle 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 a brake if provided Never put hands or another object on a spinning workpiece to make it stop faster CRASHING A serious explosion of metal parts can occur if cutting tool or other lathe component hits rotating chuck or a projecting part of work piece Resulting metal fragments can strike nearby people and lathe will be seriously damaged To reduce risk of crashing ALWAYS release automat ic feeds after use NEVER leave lathe unattended and CHECK all clearances before starting lathe COOLANT SAFETY Coolant can become very toxic through prolonged use and aging To mini mize toxicity change coolant regularly When using position nozzle properly to avoid splashing operator or causing a slipping hazard on floor TOOL SELECTION Cutting with incorrect or dull tooling increases risk of injury from broken or dis lodged components or as a result of extra force required for operation Always use sharp tooling that is right for the job SANDING POLISHING To reduce risk of entan glement never wrap em
17. 0 lathe includes three centers 1 an MT 2 live center 2 MT 3 dead center and 3 an MT 2 dead center as shown in Figure 25 Dead Centers Figure 25 The Model G4000 centers The spindle taper is an MT 3 and will only receive the MT 3 dead center The tailstock quill can accommodate both the MT 2 live and dead cen ter Dead Centers The MT 2 dead center installed in the tailstock quill is used to support stock that is too long to be supported by the chuck alone see Figure 26 for an example Figure 26 Example of using a dead center installed in the tailstock Model G4000 Mig Since 8 09 When mounting a long slender workpiece that extends more than 212 times its diameter beyond the chuck jaws use a center mounted in the tailstock to support it Since the dead center does not rotate with the workpiece when used in the tailstock the tip of the center must be lubricated with an anti sieze lubricant to avoid premature wear and maximize smooth operation Also keep the spindle speeds low to reduce the heat and wear from friction Install a lathe dog when using the MT 3 dead cen ter in the spindle see Figure 27 for an example Dead Center Lathe Dog Figure 27 Example of using a dead center with a faceplate and lathe dog AWARNING When using a center in the spindle to mount a workpiece the other end of the workpiece MUST be supported by a center installed in the tailstock quill to
18. 1 800 523 4777 ER AMERICAN VISA Mastercard NOVUS HEER
19. 1319 503 526 e 7527 PART DESCRIPTION 16 PHLP HD SCR M4 7 X 6 17 CAPACITOR CLIP 1 WRENCH 8 10MM 1 WRENCH 12 14MM 2 HEX WRENCH 1 5MM 21 2 23 2 25 2 2 3 3 45 316 316A 319 Model G4000 Mig Since 8 09 REF OT OT OT O1 co C1 O O1 O1 N C1 O1 R C1 O 0 lt 0 01 01 N NIO Quick Change Gears REF PART f DESCRIPTION 01 02 03 04 0 07 08 10 1 4 5 1 622 623 624 Model G4000 Mfg Since 8 09 d O gt 61 61 61 61 61 611 _ 614 615 10 O gt O gt DIN O O REF PART DESCRIPTION 625 PLUNGER 626 COMPRESSION SPRING 627 BUSHING GEARBOX FRONT COVER 61 G2 Apron Breakdown 735 Front View 715 DN 717 wo 716 704 GAN 9 TE 725 eur L 727 NA Sa 7247 Na Sa 703 Rear View 776 753A N 737 gt Si M o Model G4000 Mfg Since 8 09 Apron Parts List REF PART DESCRIPTION 703 709 4000709 N 70 N 10 P4000710 COMPRESSION SPRING 4000712 SETSCREWM61X6 P4000714 FLAT HD SCR M6 1 X 8 19 2 2 2 2 24 25 26 2 2 2 3 31 3 34 24000734 n 35 P4000735 LEVERDIRECTIONLABEL 37 4000737 GEARSHAFTI8T 02 3 P4000740 RETAINING RING 12MM 41 4000741 HALFNUTSAE16TPI2PC 42
20. 27 results from one headstock end of workpiece to the other Chuck jaws will 1 Chips debris lodged in jaws 1 Remove jaws clean and lubricate jaws scroll gear not move or do not threads and chuck then replace jaws move easily Tailstock quill will 1 Quill lock is tightened down 1 Turn quill lock counterclockwise to loosen not feed out of tailstock Model G4000 Mfg Since 8 09 o 51 Adjusting Gibs The gibs that affect the accuracy of the carriage cross slide and compound slide movements along their ways can be adjusted The carriage uses a gib clamp located on the rear of the carriage saddle and the cross slide and compound slide use a wedge shaped gib sandwiched between the component base and the way The goal of gib adjustment is to remove unneces Sary sloppiness without causing the ways to bind Tight gibs make the movements more accurate but harder to perform Loose gibs make the move ments sloppy but easier to perform Tools Needed Qty Wrench 7MM ee 1 Standard Screwdriver 1 1 Cross Slide 8 Compound Slide Gibs 1 DISCONNECT LATHE FROM POWER 2 Loosen the three hex nuts on the side of the device see Figures 82 83 Figure 82 slide gib adjustment hex nuts and set screws 52 NOTICE Excessively loose gibs may cause poor workpiece finishes and may cause undue wear of sliding surfaces and ways Excessively tight gibs may cause prema
21. 3 Moving 8 Placing Lathe 14 MOUNU a e 15 Belt Tensioning 16 Lover KNOD 16 TET PU saa usun 16 Spindle Bearing Break In 17 Recommended Adjustments 17 SECTION 4 OPERATIONS 18 Basic Controls 18 Chuck Faceplate Mounting amp Removal 20 3 Jaw Chuck 21 4 Jaw Chuck 23 Faceplate 24 EEE 25 Offsetting Tailstock 27 Aligning ii 27 Drilling with Tailstock 29 Steady Rest 29 FOO RE 30 Cross Slide 30 Compound Slide 31 Tool Holders 31 Spindle Speed 32 Feed Rate Lever 35 Change Gears 36 Power Feed 38 NOREL IEGOIMO 38 Threading Controls ee 40 Understanding Threading Charts 42 SECTION 5 ACCESSORIES 43 SECTION 6
22. 4 ADJUSTING SCREW 68 o Model G4000 Mfg Since 8 09 REF PART DESCRIPTION LEADSCREW 9 16 16 x 25 BED LEADSCREW BUSHING BLOCK HEX NUT M8 1 25 Model G4000 Mig Since 8 09 1317 1317V2 DESCRIPTION REF PART SET SCREW M6 1 X 25 FLAT WASHER 6MM 69 Label Placement 1352 On Back 1354 Grizzly i WARNING BENCHLA NOTICE of Electric A WARNING Specifications o reduce the rak of serious personal injury when usang Moter 3 4 HP 110V Phase this machine ae eg Grr St Sn Always pull the tension Cover em shield starting the lathe to 1 353 3 Clear chips way with a brush not with hand 8 4 Make sure workpiece is property held m 2 19708 avoid damage to V belt chuck facepiate and has safe clearance before starting Lathe Speeds 6 130 2000 RPM Lathe Feed Rates 18 0 0023 0 013 5 Never leave the chuck key in the chuck inch Threads 27 5 56 6 Never attempt to slow or stop chock spindle or Metric Threads 11 0 5 3 0 mm workpiece with your hands 7 Newer leave the machine running when unattended 8 Do not wear loose clothing gloves or jewelry secure long hair 9 Do not operate under influence of drugs or alcohol or when tired 10 Never reverse motor while spindle is in motion 11 Always keep guards covers and doors place and when ma power 1350 Disconnect power before opening this cover On Si
23. 4000 is a heavy machine Serious personal injury may occur if safe moving methods are not used To be safe get assistance use safe lifting methods and use power equipment that is rated for at least 500 Ibs to move the shipping crate and machine To ensure the lathe does not unexpectedly move during operation you must securely mount the machine to a flat and stable surface that can sup port the weight To do this use the chip pan as template to drill the holes refer to Mounting on Page 15 To move and place your lathe 1 14 Remove the crate top then remove the chip pan that is attached to it Remove the sides of the crate the toolbox and the faceplate 4 jaw chuck assembly from the shipping pallet then unbolt the lathe from the pallet Position the chip pan on the prepared sur face use it as a template to mark the mount ing hole locations then drill the holes 4 Wrap the lifting straps around the back of the bedway and up through the center cavities to avoid bending the leadscrew or contacting the carriage controls when lifting as shown in Figure 6 Note 7o help balance the load remove the tailstock and steady rest from the machine then position the right lifting strap and the carriage as far to the right as possible refer Carriage Controls on Page 19 for detailed instructions Make sure the lifting straps do not put any strain on the leadscrew or carriage controls Figure 6
24. A Steady Rest Provides support for long slen der stock and can be positioned anywhere on the bedway Follow Rest Follows the movement of the carriage and provides support for long slen der stock to prevent the workpiece from flex ing due to cutting tool pressure 4 Way Tool Post Holds four different cut ting tools that can be indexed rotated to the workpiece as needed Compound Slide Handwheel Moves the compound slide and mounted tooling toward or away from the workpiece at the angle selected Compound Slide Angle Scale Displays the angle of the compound slide and mounted tooling in relation to the spindle center line Thread Dial When engaged with the leadscrew shows when to engage the half nut during certain inch threading operations Half Nut Lever Opens and closes the half nut onto the longitudinal leadscrew which engages the powered carriage feed for threading Feed Lever Engages the carriage gears with the longitudinal leadscrew for non threading powered carriage movement Model G4000 Mig Since 8 09 NOTICE Engaging the feed lever and the half nut at the same time will damage the car riage gearing and longitudinal leadscrew NEVER attempt to force the feed lever in the engaged up position and half nut lever in the engaged down position at the same time Carriage Handwheel Moves the carriage and the mounted tooling left or right along the bedway J Cross Slide Handwheel
25. CTION Always wear ANSI approved safety glasses or a face shield when operating or observing machinery to reduce the risk of eye injury or blindness from flying particles Everyday eyeglasses are not approved safety glasses Model G4000 Mfg Since 8 09 AWARNING WEARING PROPER APPAREL Do not wear clothing apparel or jewelry that can become entangled in moving parts Always tie back or cover long hair Wear non slip footwear to avoid accidental slips which could cause loss of work piece control HAZARDOUS DUST Dust created while using machinery may cause cancer birth defects or long term respiratory damage Be aware of dust hazards associated with each workpiece material and always wear a NIOSH approved respirator to reduce your risk HEARING PROTECTION Always wear hear ing protection when operating or observing loud machinery Extended exposure to this noise without hearing protection can cause permanent hearing loss REMOVE ADJUSTING TOOLS Tools left on machinery can become dangerous projectiles upon startup Never leave chuck keys wrenches or any other tools on machine Always verify removal before starting INTENDED USAGE Only use machine for its intended purpose and never make modifications not approved by Grizzly Modifying machine or using it differently than intended may result in malfunction or mechanical failure that can lead to serious personal injury or death AWKWARD POSITIONS Keep proper footin
26. Moves the cross slide and mounted tooling in or out to the bedway Tailstock Figure 13 Tailstock controls and components A Quill Holds a tapered center or tool and moves toward or away from the spindle with the use of the handwheel Quill Lock Locks the quill and installed tool in place Quill Handwheel Moves the quill in and out of the tailstock casting Offset Scale Indicates the tailstock offset from the lathe center line Tailstock Lock Nut Secures the tailstock in place on the bedway 19 Chuck Faceplate Mounting 8 Removal Your Model G4000 lathe includes a 4 3 jaw chuck a 7 A 4 jaw chuck and a 7 2 faceplate The chucks and faceplate mount to the threaded spindle in the same manner Before installing or storing the chucks or face plate clean away debris and grime from their surfaces and threaded bores then apply a protec tive coat of a product like Primrose Armor Plate to avoid rust and corrosion see ACCESSORIES on Page 43 Tools Needed Qty Hex Wrench 3mm 1 Chuck Bars 2 Plywood for bedway 1 Mounting Chuck or Faceplate 1 DISCONNECT LATHE FROM POWER 2 Lay apiece of plywood on the bedway under neath the spindle to protect the precision ground surfaces 3 Clean away any debris and grime from the mating threads of the spindle and chuck or faceplate then apply a thin coat of lig
27. ON Manual Accuracy We are proud to offer this manual with your new machine We ve made every effort to be exact with the instructions specifications drawings and photographs of the machine we used when writing this manual However sometimes we still make an occasional mistake Also owing to our policy of continuous improve ment your machine may not exactly match the manual If you find this to be the case and the dif ference between the manual and machine leaves you in doubt check our website for the latest manual update or call technical support for help Before calling find the manufacture date of your machine by looking at the date stamped into the machine ID label see below This will help us determine if the manual version you received matches the manufacture date of your machine MODEL GXXXX MACHINE NAME Grizzly WARNING Motor ing this machine operation Specification M an ufactu re Date ane respirator Specification I sted setup and Specification of Yo u r M ach n e uit before starting 7 Wake ure the motor Oppe and disconnect Specification power before adjustments maintenance or service Weight 5 DO NOT expose to rain or dampness 6 DO NOT modify this machine in any way Res 7 DO NOT remove safety guards 221 8 Never leave machine running unattended 9 DO NOT operate under the influence of drugs or alcohol Manufactured for Grizziy In Taiw
28. OP position and wait for the spindle to come to a com plete stop then turn the switch to the REV position and let the lathe run for another 10 minutes 6 Turn the spindle switch to the STOP position and wait for the spindle to come to a com plete stop 7 Disconnect the lathe from power then repeat Steps 4 6 for the spindle speeds of 600 RPM and 2000 RPM 8 Turn the lathe OFF 9 Perform all lubrication procedures as instruct ed in the Lubrication subsection on Page 47 The Spindle Bearing Break In procedure is complete and your lathe is ready for operation Recommended Adjustments For your convenience the adjustments listed below have been performed at the factory However because of the many variables involved with shipping we recommend that you at least verify the following adjustments to ensure the best possible results from your new machine Step by step instructions for these adjustments can be found in the SERVICE section starting on Page 50 Factory adjustments that should be verified e Tailstock alignment Page 27 e adjustment Page 52 17 SECTION 4 OPERATIONS AWARNING To reduce your risk of serious injury read this entire manual BEFORE using machine AWARNING Eye injuries respiratory problems or hear ing loss can occur while operating this tool Wear personal protective equipment to reduce your risk from these hazards AWARNING Keep hair clothing and jewe
29. ad 5 Repeat Steps 3 4 for jaws 2 and 3 in Mounting Workpiece sequence 1 DISCONNECT LATHE FROM POWER 6 Rotate the chuck key clockwise to bring the 2 Lay piece of plywood on the bedway under jaws together in the center of the chuck neath the spindle to protect the precision ground surfaces lIf installed correctly the jaws will converge evenly at the center of the chuck 3 Loosen the hex nut on the back of the chuck for each jaw see Figure 21 the jaws do not come together evenly remove them make sure the numbers of the jaws and the jaw guides match then D 06 properly re install them 4 Jaw Chuck The 4 jaw chuck included with your lathe features independently adjustable hardened steel jaws Each jaw can be removed from the chuck body and reversed for wide range of work holding MERE configurations The 4 jaw chuck is typically used MN to hold non concentric workpieces see Figure 20 for an example Figure 21 4 jaw chuck components 4 With assistance to support the workpiece use the chuck key to open each jaw until you can position the workpiece flat against the chuck face or evenly on the jaw steps Figure 20 Example of a non concentric workpiece held in a 4 jaw chuck Model G4000 Mfg Since 8 09 o 23 Tighten each jaw in small increments in an opposing sequence as illustrated in Figure 22 until the workpiece is firmly secure in the desired p
30. alifornia to cause cancer birth defects or other reproductive harm Some examples of these chemicals are Lead from lead based paints Crystalline silica from bricks cement and other masonry products Arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals Work in a well ventilated area and work with approved safety equip ment such as those dust masks that are specially designed to filter out microscopic particles Table of Contents INTRODUCTION 2 Manual 2 ENN 2 Machine Description 2 Identification 3 Machine Data 4 SECTION 1 SAFETY 6 Safety Instructions for Machinery 6 Additional Safety Instructions for 8 Metal Lathes 8 SECTION 2 POWER SUPPLY 9 SECTION 3 SETUP 11 Needed for Setup 11 Unpacking 11 MENN Jr 12 CA as 13 Site Considerations 1
31. allow it to freely rotate The steady rest can be positioned for purposes of stability and accuracy on either side of the car riage and anywhere along the bedway Tools Needed Qty Wrench 13mm 1 To install and use the steady rest 1 DISCONNECT LATHE FROM POWER 2 Remove the clamp hex nut bolt and clamp block from the bottom of the steady rest see Figure 35 4 Block Figure 35 Steady rest components 3 Clean away any debris and grime from the bedways the steady rest ways and the clamp block 4 Align the bedway notch in the base of the steady rest with the rear bedway then secure the rest with the hardware removed in Step 2 29 5 Loosen the finger lock nuts turn the adjust ment knobs until the fingers make even con tact with the workpiece then re tighten the lock nuts Note The fingers should rest against the workpiece to fully support it at all three points but also allow it to freely rotate with the spin dle without causing deflection 6 Lubricate the finger tips with anti seize grease during operation Note After prolonged use the fingers will require milling or filing to clean up the contact surfaces Follow Rest The follow rest shown in Figure 36 is mounted on the front of the carriage saddle and follows the movement of the tool along the length of the workpiece The follow rest is used on long slen der parts
32. ameter piece of cast steel stock using an HSS cutting tool Step 1 150 from x 4 600 Step 2 600 5 Diameter of workpiece 1200 Result The correct spindle speed is 1200 RPM Example B You will rough turn a 1 diameter piece of stainless steel using a carbide cutting tool Step 1 60 SFM from chart x 2 for carbide tool 120 Step 2 120 Calculated SFM x 4 480 Step 3 480 1 Diameter of workpiece 480 RPM Result The correct spindle speed is 480 RPM 3 min cr oca pcs ace ncs Figure 44 Model G4000 spindle speed configuration chart Configuring Spindle Belt There are six spindle speeds available by properly positioning the spindle belt on the motor pulley A the idler pulley B and the spindle pulley C To configure the spindle belt 1 DISCONNECT LATHE FROM POWER 2 Refer to the chart in Figure 44 above and find the spindle speed that is closest to your calculated spindle speed Note This chart is also on the front of the headstock In most cases the calculated spindle speed will be between the available speeds Use your best judgement when choosing either the higher or lower speed 3 Open the change gear cover and use Figure 45 to identify the motor A idler B and spindle C pulleys the spindle belt and the belt tensioning pulley Figure 45 Spindle speed and indie belt 34 4 Release the
33. an 10 Maintain machine carefully to prevent accidents For your convenience we post all available man uals and manual updates for free on our website at www grizziy com Any updates to your model of machine will be reflected in these documents as soon as they are complete Contact Info We stand behind our machines If you have any questions or need help use the information below to contact us Before contacting please get the serial number and manufacture date of your machine This will help us help you faster Grizzly Technical Support 1203 Lycoming Mall Circle Muncy PA 17756 Phone 570 546 9663 Email techsupport grizzly com We want your feedback on this manual What did you like about it Where could it be improved Please take a few minutes to give us feedback Grizzly Documentation Manager P O Box 2069 Bellingham WA 98227 2069 Email manuals grizzly com Machine Description The metal lathe is used to remove material from a rotating workpiece which is held in place on the spindle with a chuck or faceplate The cutting tool is mounted on the carriage or tailstock and moved against the spinning workpiece to perform the cut The typical metal lathe cutting operations include facing turning parting drilling reaming grooving knurling and threading There are a wide variety of tools and workpiece holding devices available for each of these operations The Model G4000 is great lathe f
34. an the jaws with shop rags and mineral spirits then apply a thin coat of an anti rust protective lubricant before storing them in a protected location free from mois ture and abrasives 22 Installing Jaws 1 2 Place the chuck on a flat stable surface Examine the sides of the jaws each is stamped with a number 1 through 3 Examine the jaw guides of the chuck each is stamped with a corresponding number see Figure 18 Note The jaws jaw guides machined to match and each jaw must be installed in its corresponding jaw guide Guide 1 Figure 18 Jaw and jaw guide stamped with corresponding numbers Insert the chuck key into a scroll keyway and rotate it until you see the beginning of the scroll gear s lead thread come into view through the 1 jaw guide then back if off slightly until it disappears see Figure 19 Lead Thread Figure 19 Installing jaw 1 Model G4000 Mig Since 8 09 4 Slide the 1 jaw into the 1 jaw guide and Mount or remove the 4 jaw chuck according the hold it firmly against the scroll gear threads instructions beginning on Page 20 then rotate the chuck key clockwise approxi mately one turn until the lead thread engages Tools Needed Qty with the jaw Hex Wrench 3mm 1 vn 1 Note on the jaw to make sure it is 4 Jaw Chuck Key 1 engaged with the scroll gear thre
35. ange gears follow these rules to ensure good results e When removing or replacing the change gears thoroughly clean the gears bushings and the gear shafts with a stiff brush and min eral spirits When dry apply a thin coat of light machine oil to the gear teeth the bushinas and the gear shafts to prevent corrosion and ensure smooth movement 36 e Leave 0 002 0 003 of backlash between the gears when you mesh them together so that they do not bind e To avoid restricting gear rotation do not overly tighten the fasteners that secure them This hardware is intended to just keep them in place e Before starting the lathe rotate the change gears by hand to make sure they have proper backlash and rotate freely To learn how to configure the change gears per form the following instructions to set up the lathe for the feed rate of 0 0078 in rev inches of travel per revolution of the spindle which is referred to in the grayed sections of the feed rate chart in Figure 49 Figure 49 Sections of the feed rate chart greyed illustrate the example Tools Needed Qty Hex Wrench 5mm 1 Wrench or Socket 10mm 1 Flat Head Screwdriver 2 1 To configure the change gears for a feed rate of 0 0078 in rev 1 DISCONNECT LATHE FROM POWER 2 Open the change gear cover 3 Loosen the cap screw that secu
36. ays use lower spindle speeds and keep the dead center tip well lubricated 26 Using Center the Tailstock 1 2 DISCONNECT LATHE FROM POWER Thoroughly clean the tapered mating surfac es of the tailstock quill bore and the center Use the tailstock handwheel to feed the quill out from the casting at least 1 2 but for pur poses of stability and accuracy no more than 1 Note The scale on the tailstock handwheel is marked in 0 025mm increments approxi mately 0 001 with one full revolution moving the quill 1 25mm approximately 0 050 Seat the center into the quill position the tailstock so that the tip of the center presses against the workpiece enough to hold it in place then tighten the tailstock lock nut Rotate the tailstock handwheel clockwise to feed the center farther into the workpiece until it is snug then tighten the quill lock lever Note The force against the mounted workpiece will fully seat the centers taper into the quill However do not overly force the center into the workpiece with the hand wheel this will make removing the center very difficult and could damage it To remove the center from the quill hold onto it with one hand then rotate the tailstock handwheel counterclockwise to draw the quill back into the casting until the center releases Model G4000 Mfg Since 8 09 Offsetting Tailstock The tailstock can be offset slightly from the spin dle cen
37. bly slide the remaining flat washer onto the bolt from the rear of the gears Thread the bolt into the special T nut on the pivot arm but leave it loose and slide the 120 127T gears to the left and away from the gear Remove the cap screw and flat washer that secure the b gear then remove the gear from the gear shaft see Figure 51 Align the keyway on the 60T gear with the gear shaft key then install the gear and secure it with the cap screw and flat washer Move the 120 127T gears to the right and mesh the 120T gear and the 60T b gear then tighten the special bolt to secure the 120 127T gears in place Rotate the pivot arm up so that the 127T and 28T a gear mesh then tighten the pivot arm cap screw to secure it in place as shown in Figure 52 rate of 0 0078 Rotate the spindle pulley by hand to make sure that all the change gears are properly meshed freely rotating and with 0 002 0 003 of backlash I f the change gears are not properly meshed and freely rotating repeat this procedure Close and secure the change gear cover 07 Power Feed Non Threading Power feed on the Model G4000 simple means using the machine driven components to move the carriage left or right along the workpiece rather than manually rotating the handwheel The powered speed at which the carriage travels IS set with the feed rate lever and the change gears but it is also dependent upo
38. carriage nal gears of the power feed mechanism and will void the warranty NEVER attempt to move the feed rate lever when the lathe is running gt 268 7 Loty Feed o ME To set the feed rate lever 1 Make sure the spindle is OFF and has come to a complete stop Continued on next page gt Figure 47 Feed rate lever Model G4000 Mfg Since 8 09 o 35 Note In the next step the gears must prop erly mesh lt may be necessary to rock the spindle back and forth by hand until the gears mesh Also use one hand on the bot tom of the lever to apply sideways pressure when moving it 2 Pull the lever knob out slide the lever under the correct hole raise it up to align the lever pin with the hole then release the knob Note Make sure the lever pin is firmly seated into the hole before continuing the operation Change Gears In addition to setting the feed rate lever the change gears shown in Figure 48 work with the feed rate lever to provide the various powered feed rates for the carriage ASOU NOW Enn E Chan mo n a 7 a 4 2 i 4 9554 Ma 43 4 5 4 4 A A dae O i ZKU Mi 4 a DN 2 lt JAA SAN N A KU yy lt vr Ven lt f a Y SZR 1 mm ears iv a K L Sh T 4 P r y Ty A aa Po 4 224 x When configuring the ch
39. chine will be connected to a shared circuit where multiple machines may be running at the same time con sult an electrician or qualified service personnel to ensure circuit is properly sized for safe operation Grounding 8 Plug Requirements This machine MUST be grounded In the event of certain malfunctions or breakdowns grounding reduces the risk of electric shock by providing a path of least resistance for electric current This machine is equipped with a power cord that has an equipment grounding wire and a grounding plug Only insert plug into a matching receptacle outlet that is properly installed and grounded in accordance with all local codes and ordinances DO NOT modify the provided plug GROUNDED 5 15 RECEPTACLE Grounding Prong SHOCK HAZARD Two prong outlets do not meet the grounding requirements for this machine Do not modify or use an adapter on the plug provided if it will not fit the outlet have a qualified electrician install the proper outlet with a verified ground 10 Improper connection of the equipment grounding wire can result in a risk of electric shock The wire with green insulation with or without yellow stripes is the equipment grounding wire If repair or replacement of the power cord or plug is nec essary do not connect the equipment grounding wire to a live current carrying terminal Check with a qualified electrician or service per sonnel if you do not understand these gro
40. d SFM Finish Feed 0 003 to 0 003 to Rate IPR 0 005 0 005 SFM Surface Feet per Minute IPR Inches per Revolution 0 003 to 0 005 to 0 003 to 0 003 to 0 010 0 010 0 010 Note These values are for HSS cutting tools For carbide cutting tools double the cutting speed These values still may need slight adjustment depending on the cutting tool rake and relief angles Refer to the MACHINERY S HANDBOOK for more detailed information Figure 53 HSS cutting speed and feed rate table 238 Model G4000 Mig Since 8 09 NOTICE Carriage feed rate is dependent upon the spindle speed higher spindle speeds equal higher feed rates Pay close attention to the rate of the powered carriage move ment and keep your hand poised over the feed lever to disengage it when necessary Failure to fully understand this could result in the carriage crashing into the headstock or tailstock causing severe damage to the lathe c Configure the a and b change gears as directed refer to Change Gears on Page 36 for detailed instructions Note When configuring the change gears for non threading feed rates always have the 120T gear facing out 3 Use the handwheels to properly position the tool against the workpiece that is correct for your operation NOTICE NEVER attempt to engage the feed lever up and half nut lever down at the same time and NEVER force these levers Otherwise severe damage to the lathe could
41. de of Change Gear Cover REF PART DESCRIPTION REF PART DESCRIPTION THREAD DIAL CHART LABEL 353 PINCH HAZARD LABEL 354 MACHINE ID LABEL 356 1352 TENSION LEVER NOTICE 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 grizziy com to order new labels 70 o Model G4000 Mfg Since 8 09 CUT ALONG DOTTED LINE Erizziy WARRANTY CARD Industrial Inc Name Street City State Zip Phone Email Model Order Serial The following information is given on a voluntary basis It will be used for marketing purposes to help us develop better products and services Of course all information is strictly confidential 1 How did you learn about us Advertisement Friend Catalog Card Deck Website Other 2 Which of the following magazines do you subscribe to Cabinetmaker amp FDM Popular Science Wooden Boat Family Handyman Popular Woodworking Woodshop News Hand Loader Precision Shooter Woodsmith Handy Projects in Metal Woodwork Home Shop Machinist RC Modeler Woodworker West Journal of Light Cont Rifle Woodworker s Journal Live Steam Shop Notes Other Model Airplane News Shotgun News Old House Journal Today s Homeowner Popular Mechanic
42. e machine for easy access Features 2 T Nuts amp bolts Figure 62 G1075 52 PC Clamping Kit H7724 60 Birch Workbench w Drawers When organized storage is every bit as important as a stable work surface this workbench is just what you need Includes six drawers with ball bear ing slides and two lower compartments The end vise also includes two bench dogs Specifications 23 top edge thickness 60 W x 20 D x 34 H 148 lbs approximate shipping weight Figure 63 H7724 60 Birch Workbench with Drawers 43 G9610 Test Indicator 0 O3 Range 0 001 Resolution G9611 Test Indicator 0 008 Range 0 0001 Resolution G9612 Test Indicator 0 030 Range 0 0005 Resolution These test indicators have an easy to read dial and a pivoting stylus that moves at right angles to the dial face Figure 64 Test Indicator H7975 Digital Caliper w ABS 6 H7976 Digital Caliper w ABS 8 This Digital Caliper features absolute and relative measurements hardened stainless steel con struction inch metric conversion lock knob zero reset data part and battery life indicator Inch metric resolution is 0 005mm 0 0002 Comes in a fitted foam lined plastic case and includes a spare battery Figure 65 H7975 H7976 Digital Caliper w ABS T10118 Mini Digital Readout Kit Here s the slickest setup for managing the depth of cut with your tailstock Just set up touch off and zero out You re going to know the e
43. e tool post to index the desired tool to the workpiece then re tighten the lock lever Note The 4 way tool post is aligned in four rotational positions by an indexing pin mount ed in the compound slide that engages slots underneath the tool post base 31 C Type Tool Holder Tools Needed Qty Wrench 13mm 1 To use the C type tool holder 1 DISCONNECT LATHE FROM POWER 2 Remove the 4 way tool post from the com pound slide 3 Replace the beveled pin from the compound slide with the 8 x 20mm pin see Figure 40 gt c eu k r oh A 8 X 20m r s Pin 5 x L E sa m Figure 40 C type tool holder components 4 Slide the tool holder base onto the tool post bolt then rotate it until the pin is inserted into the base indent 5 Thread the M8 1 25 x 30 hex bolt into the holder top slide the top onto the tool post bolt then secure the tool with the M8 1 25 hex nut see Figure 41 Note Thread the hex bolt up or down to make sure the holder top is level and makes even contact wiih the tool Hex Bolt Holder o 3 Figure 41 Cutting tool properly installed in the C type tool holder 32 Spindle Speed The spindle speed is controlled by belts and pul leys inside the change gear cover see Figure 42 Figure 42 Belts and gears inside the change gear cover To set the correct spindle speed for
44. ent rated for weight of this machine Model G4000 Mfg Since 8 09 Needed for Setup The following are needed to complete the setup process but are not included with your machine Description Qty e Wrenches 13 1 6 1 Each e Precision Level 1 e Assistants As Needed Safety Glasses 1 Per Person 2 OS FO er 1 Shop Rags Needed e Cleaner Degreaser As Needed e Mounting Hardware Page 15 As Needed e Tools for Mounting As Needed Unpacking Your machine was carefully packaged for safe transportation Remove the packaging materials from around your machine and inspect it If you discover the machine is damaged please imme diately call us at 570 546 9663 for advice Save the containers and all packing materials for possible inspection by the carrier or its agent Otherwise filing a freight claim can be difficult When you are completely satisfied with the condi tion of your shipment inventory the contents A4 WARNING SUFFOCATION HAZARD Keep children and pets away from plastic bags or packing materials shipped with this machine Discard immediately 11 Inventory The following is a list of items shipped with your machine Before beginning setup lay these items
45. ery cloth around rotating workpiece Instead use emery cloth with the aid of a tool or backing board MEASURING WORKPIECE To reduce risk of entanglement never measure rotating workpieces Model G4000 Mfg Since 8 09 SECTION 2 POWER SUPPLY Availability Before installing the machine consider the avail ability and proximity of the required power supply Circuit an existing circuit does not meet the requirements for this machine a new circuit must be installed To minimize the risk of electrocution fire or equipment damage installation work and electrical wiring must be done by an electrican or qualified service personnel in accordance with all applicable codes and standards AWARNING Electrocution fire or equipment damage may occur if machine is not correctly grounded and connected to the power supply Full Load Current Rating The full load current rating is the amperage machine draws at 100 of the rated output power On machines with multiple motors this is the amperage drawn by the largest motor or sum of all motors and electrical devices that might operate at one time during normal operations Full Load Current Rating at 110V 11 6 Amps The full load current is not the maximum amount of amps that the machine will draw If the machine is overloaded it will draw additional amps beyond the full load rating If the machine is overloaded for a sufficient length of time damage overheating
46. fault Pulley slipping on shaft Motor bearings at fault Machine undersized for task PAL EE wc ES Motor overheated Spindle rotation switch at fault Run capacitor at fault Motor at fault Centrifugal switch at fault Workpiece not held firmly in chuck faceplate Motor or component loose Spindle belt worn or loose Pulley loose Incorrectly mounted to workbench Motor fan rubbing on fan cover Bit chattering Workpiece or chuck at fault 9 Motor bearings at fault 10 Centrifugal switch 11 Quick change gears at fault 9 NOD D ES Ensure power supply is on has correct voltage Test for good contacts correct the wiring Correct motor wiring connections Page 55 Ensure circuit size is correct replace weak breaker Check fix broken disconnected or corroded wires Replace switch Test replace if faulty Adjust replace centrifugal switch Test repair replace Decrease feed rate cutting speed Use correct type size of metal Tension replace belt s ensure pulleys are aligned Wire motor correctly Page 55 Test for good contacts correct wiring Replace loose pulley shaft Test repair replace Use sharp tools at correct angle reduce feed rate depth of cut use cutting fluid if possible Clean motor let cool and reduce workload Test replace switch Test repair replace Test repair replace Adjust
47. g and balance at all times when operating machine Do not overreach Avoid awkward hand positions that make workpiece control difficult or increase the risk of accidental injury CHILDREN amp BYSTANDERS Keep children and bystanders at a safe distance from the work area Stop using machine if they become a distraction GUARDS amp COVERS Guards and covers reduce accidental contact with moving parts or flying debris Make sure they are properly installed undamaged and working correctly Model G4000 Mfg Since 8 09 9 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 ing operation greatly increases risk of injury or loss of control Before starting verify machine is stable and mobile base if used is locked USE RECOMMENDED ACCESSORIES Consult this owner s manual or the manufacturer for rec ommended accessories Using improper acces sories will increase the risk of serious injury UNATTENDED OPERATION To reduce the risk of accidental injury tum machine OFF and ensure all moving parts completely stop before walking away Never leave machine running while unattended MAINTAIN WITH CARE Follow all maintenance instructions and lubrication schedules to keep machine in good working conditi
48. ge gear selection in the middle rows ro oso nasz 30 ef wu moron eo e se e o rs o es so n so o o ez en e eo eo s s o o oo o s s oslo7prfoa fes Figure 60 Model G4000 threading charis 42 Model 54000 Mfg Since 8 09 SECTION 5 ACCESSORIES AWARNING Some aftermarket accessories can be installed on this machine that could cause it to function improperly increasing the risk of serious personal injury To minimize this risk only install accessories recommended for this machine by Grizzly NOTICE Refer to the newest copy of the Grizzly Catalog for other accessories available for this machine Gal 1 200 028 4777 VO SB1365 South Bend Lathe Way Oil 12 oz T23962 ISO 68 Moly D Machine Oil 5 gal T23963 1SO 32 Moly D Machine Oil 5 gal Moly D oils are some of the best we ve found for maintaining the critical components of machinery because they tend to resist run off and maintain their lubricity under a variety of conditions as well as reduce chatter or slip Buy in bulk and save with 5 gallon quantities Figure 61 12 oz way oil amp 5 gallon machine oil Model G4000 Mfg Since 8 09 G1075 52 PC Clamping Kit All the blocks bolts nuts and hold downs are case hardened This clamping kit includes 24 studs 6 step block pairs 6 T nuts 5 flange nuts 4 coupling nuts and 6 end hold downs The rack can be bolted to the wall or side of th
49. ht machine oil to the threads PINCH HAZARD Protect your hands and the precision ground bedways with plywood when removing the lathe chuck The heavy weight of a falling chuck can cause serious injury or damage the bedway 4 Insert the longer chuck removal bar into the spindle indent to hold the spindle still then thread the chuck or faceplate onto the spindle and hand tighten it as shown in Figure 14 Note Overtightening the chuck or faceplate onto the spindle will make removal difficult and could damage the threads 1 a 4 z s heten Ws 25138140144 46139 meg age Set Screw T ed elder bis Figure 14 Mounting the 3 jaw chuck 5 Tighten set screw shown in Figure 14 to prevent the chuck or faceplate from coming loose when the spindle is rotating in reverse 6 Remove the plywood from the bedway and any tools used before starting the lathe AWARNING Make sure the chuck face plate is firmiy secured on the spindle and remove the chuck tools before operation Objects thrown from the lathe could cause A serious personal injury or death to the operator or bystanders Model G4000 Mig Since 8 09 Removing a Chuck or Faceplate 1 DISCONNECT LATHE FROM POWER 2 Lay a piece of plywood on the bedway under neath the spindle to protect the precision ground surfaces 3 Loosen both set screws then insert one chuck bar into the spindle indent to hold the
50. iameter Clamping in an Inside Diameter Figure 16 Examples of workpiece holding configurations Tools Needed Qty 3 Jaw Chuck K ey 1 Mounting Workpiece 1 DISCONNECT LATHE FROM POWER 2 Lay a piece of plywood on the bedway under neath the spindle to protect the precision ground surfaces 3 Insert the chuck key into a scroll keyway and rotate it counterclockwise to open the jaws until the workpiece sits flat against the chuck face evenly on the jaw steps or fits into the chuck hole and through the spindle bore 21 4 Close the jaws until they make light contact with the workpiece as shown in Figure 17 Figure 17 Example of a concentric shaft secured in the 3 jaw chuck 5 Turn the chuck by hand to make sure the workpiece is evenly held by all three jaws and is centered on the chuck the workpiece is not centered loosen the jaws and adjust the workpiece then re tighten the jaws and repeat Step 5 If the workpiece is centered fully tighten the jaws Removing Jaws 1 DISCONNECT LATHE FROM POWER 2 Place a piece of plywood on the bedway to protect it then remove the chuck from the lathe 3 Lay the chuck on a flat stable surface then insert the chuck key into a scroll keyway and rotate it counterclockwise to back the jaws all the way out of the jaw guides 4 Thoroughly cle
51. in this section call Technical Support at 570 546 9663 for assistance BEFORE making any changes to the wiring on your machine An updated wiring diagram may be available Note Please gather the serial number and manufacture date of your machine before calling This information can be found on the main machine label AWARNING Wiring Safety Instructions 54 SHOCK HAZARD Working on wiring that is con nected to a power source is extremely dangerous Touching electrified parts will result in personal injury including but not limited to severe burns electrocution or death Disconnect the power from the machine before servicing electrical com ponents MODIFICATIONS Modifying the wiring beyond what is shown in the diagram may lead to unpre dictable results including serious injury or fire This includes the installation of unapproved after market parts WIRE CONNECTIONS All connections must be tight to prevent wires from loosening during machine operation Double check all wires dis connected or connected during any wiring task to ensure tight connections CIRCUIT REQUIREMENTS You MUST follow the requirements at the beginning of this man ual when connecting your machine to a power source NOTICE The photos and diagrams included in this section are best viewed in color You can view these pages in color at www grizzly com BLUE BROWN GRAY ORANGE WIRE COMPONENT DAMAGE Damaged wires or components
52. l cannot remedy a problem contact our Tech Support at 570 546 9663 for assistance To test run the machine 1 Make sure you have read the safety instruc tions at the beginning of the manual and that the machine is set up properly 2 Your lathe must be fully lubricated before you start it for the first time Perform all lubrication procedures as instructed in the Lubrication subsection on Page 47 3 Make sure all tools and objects used during setup are cleared away from the machine 16 Figure 10 The feed and half nut levers in the If a chuck is mounted make sure it is firmly secured to the spindle and that it can rotate without any interference refer to Chuck Faceplate Mounting 8 Removal on Page 20 for detailed instructions Make sure the feed lever on the front of the carriage is in the disengaged down position and the half nut lever is in the disengaged up position as shown in Figure 10 Note With the feed and half nut levers in these positions the carriage will not move when the lathe is turned ON and the leadscrew rotates Half Nut Lever m Up disengaged positions Make sure the spindle switch on the top of the headstock is in the STOP position then connect the machine to power Turn the spindle switch to the FWD position then listen to and watch for abnormal noises or actions The machine should run smoothly with little or no vibration or rubbing noises Strange or unus
53. l points to the 1 3 5 or 7 To cut a TPI of 24 engage the half nut on any number between 1 and 8 To maintain accuracy and consistency engage the half nut on the same thread dial number for each pass Failure to start on the same number each time may lead to cutting off the thread made in the previous pass Note The thread dial is not used when cutting metric threads Leave the half nut engaged from the beginning until the threads are complete NOTICE DO NOT engage the half nut when the spindle speed is over 300 RPM Otherwise damage to the leadscrew or carriage com ponents could occur SA f Understanding Threading Charts The threading charts illustrated in Figure 60 show the various feed rate lever and change gear configurations for the inch and metric threading operations that your lathe can perform The top chart is for inch threading Find the TPI for your operation in the columns under the top row of numbers from 1 to 9 This top row is the setting for the feed rate lever The correct a and b gears to use are shown in the two left columns and the configuration of these gears is illustrated to the left of that For example for a inch thread pitch of 11 the feed rate lever is set to 5 and the 60T a and the 30T b gears are used The bottom metric threading chart is arranged with the thread pitch selection in the bottom row the feed rate lever setting in the top row and the and b chan
54. lastic paint scraper optional Basic steps for removing rust preventative 1 Put on safety glasses 2 Coat the rust preventative with a liberal amount of cleaner degreaser then let it soak for 5 10 minutes 3 Wipe off the surfaces If your cleaner 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 necessary until clean then coat all unpainted surfaces with a quality metal protectant to prevent rust Model G4000 Mig Since 8 09 Site Considerations Workbench Load Refer to the Machine Data Sheet for the weight and footprint specifications of your machine Some workbenches may require additional rein forcement to support both the machine and mate rials Placement Location Consider existing and anticipated needs size of material to be processed through each machine and space for auxiliary stands work tables or other machinery when establishing a location for your new machine See Figure 5 for the minimum working clearances 12 Figure 5 Minimum working clearances CAUTION Children and visitors may be seriously injured if unsuper vised around this machine Lock entrances to the shop or disable start switch or power connection to prevent unsupervised use Ac Moving amp Placing Lathe AWARNING The Model G
55. liper to measure both ends of the workpiece If the machined workpiece is thicker at the tailstock end move the tailstock toward the operator the distance of the amount of taper see Figure 31 Move the tailstock toward the operator half the distance of the taper Looking down from above Figure 31 Adjust tailstock toward the operator lf the machined workpiece is thinner at the tailstock end move the tailstock away from the operator 12 the distance of the amount of taper see Figure 32 Looking down from above Move tailstock away from the operator hali the distance of the taper Figure 32 Adjust tailstock away from the operator Model G4000 Mig Since 8 09 Drilling with Tailstock The tailstock can be used to drill holes by mounting drill bit in the tailstock rotating the workpiece with the spindle then using the tailstock quill handwheel to advance the drill bit into the workpiece See Figures 33 34 for exam ples of drill chuck and tapered drill bit installation Model 54000 Mfg Since 8 09 Steady Rest The steady rest serves as a support for long slender workpieces that extend beyond the chuck or faceplate more than 2 7 times its diameter and a center mounted in the tailstock cannot be used This is accomplished by adjusting the brass fingers of the rest so that they evenly contact the workpiece on three sides to support it and still
56. lry away from mov ing parts at all times Entanglement can result in death amputation or OD severe crushing injuries NOTICE If you are not experienced with this type of machine WE STRONGLY RECOMMEND that you seek additional training outside of this manual Read books magazines or get formal training before beginning any proj ects Regardless of the content in this sec tion Grizzly Industrial will not be held liable for accidents caused by lack of training 18 Basic Controls Refer to Figures 11 13 and the following descrip tions to become familiar with the basic controls and components of your lathe Headstock Figure 11 Headstock controls and components A Thread Dial Chart Shows when to engage the half nut for inch threading B Configuration Chart Provides belt gear and lever positions for spindle speeds power feed rates and threading operations C Belt Tensioning Lever Releases or applies tension to the spindle belt D Spindle Switch Starts reverses and stops spindle rotation E Spindle Holds a chuck faceplate or center for workpiece mounting F Feed Rate Lever Engages the gearing that partly control the carriage feed rate G Change Gear Cover Protects the operator from the change gears belts and pulleys that transfer power from the motor to the spindle and leadscrew Model G4000 Mig Since 8 09 Carriage Figure 12 Carriage controls and components
57. machine follow this maintenance schedule and refer to any specific instructions given in this section Note This maintenance schedule is based on average daily usage Adjust the maintenance schedule to match your usage to keep your lathe running smoothly and to protect your investment Daily Check e Loose mounting bolts e Damaged or wom belts e Worn or damaged wires e Any other unsafe condition Every 6 8 Hours of Operation e Clean the machine e Daily lubrication procedures Cleaning amp Protecting Cleaning the Model 24000 is relatively easy Vacuum excess metal chips then wipe off built up grime Protect the unpainted metal surfaces with regular applications of Way Oil refer to ACCESSORIES on Page 43 Model G4000 Mfg Since 8 09 Lubrication Your lathe has numerous metal to metal moving parts that require proper lubrication to help ensure efficient and long lasting operation Other than the lubrication points covered in this section all other bearings are internally lubricated and sealed at the factory Simple leave them alone unless they need to be replaced DISCONNECT THE LATHE FROM POWER BEFORE PERFORMING LUBRICATION Make copies of Pages 48 49 and check off the correct boxes in the chart of Figure 77 to keep track of the daily lubrication procedures Follow the same sequence of lubrication each day to help ensure all locations are lubricated For ball oilers wipe them clean then depress
58. merchandise complies with the provisions of any law or acts unless the manufacturer so warrants In no event shall Grizzly s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington County of Whatcom We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our products To take advantage of this warranty contact us by mail or phone and give us all the details We will then issue you a Return Number which must be clearly posted on the outside as well as the inside of the carton We will not accept any item back without this number Proof of purchase must accompany the merchandise The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty Please feel free to write or call us if you have any questions about the machine or the manual Thank you again for your business and continued support We hope to serve you again soon CON TOOL WEBSITE Buy Direct and Save with Grizzly Trusted Proven and a Great Value Since 1983 Visit Our Website Today For Current Specials ORDER 24 HOURS A DAY
59. n the lathe and chip pan 2 Center drill a 6 long piece of round bar stock on both ends Set it aside for use in Step 5 Note f the tailstock is out of alignment by only a few thousands of an inch the center drill will find the center point during the drilling process If the tailstock appears grossly out of alignment adjust the tailstock offset until it appears to be centered 3 Make a dead center by turning a shoulder on a similar piece of round stock then flip the piece over in the chuck and turn a 60 point see Figure 29 Note As long as the fabricated dead center remains in the chuck the point of this center will remain true to the spindle center line However if it is removed the point will have to be re finished before using it for this proce dure again Figure 29 he fabricated dead center AY 28 Figure 30 Example of bar stock mounted Install the MT4Z2 dead center into the tailstock Attach a lathe dog on the spindle end of the bar stock from Step 2 then mount the workpiece between the centers see Figure 30 for an example between centers Turn approximately 0 010 off the diameter of the entire length of the workpiece Mount a test or dial indicator so that the plunger is on the tailstock quill Note necessary in the following step refer to Offsetting Tailstock on Page 27 for adjusting the tailstock position 8 Use a ca
60. n the spindle speed The correct powered feed rate of the carriage and the spindle speed is determined by the material to be machined the type of tooling used and by the desired finish Refer to the table in Figure 53 or the Machinery s Handbook for guidelines Note This chart provides the cutting speed for a given feed rate You must use the cutting speed with the formula on Page 33 to calculate the cor rect spindle speed RPM for the chosen feed rate Low Cabon High Carbon Annealed Note These instructions are only valid for non threading operations To configure the feed rate for threading refer to the Threading subsection on Page 40 To engage the power feed for non threading operations 1 DISCONNECT LATHE FROM POWER 2 Examine the feed rate chart in Figure 55 to determine the necessary configurations for the change gears and feed rate lever Note The feed rate chart is also displayed on the front of the headstock a Find the desired feed rate on the bottom row of the chart labeled Feed b Set the feed rate lever as directed by the number at the top of that column on the line labeled Lever refer to Feed Rate Lever on Page 35 for detailed instruc tions Normalized Steel Allow Steel Alloys Steel Rough Cutting 50 45 200 70 100 Speed SFM Rough Feed 0 010 to 0 010 to Rate IPR 0 020 0 020 0 010 to 0 015 to 0 010 to 0 010 to 0 030 0 020 0 020 Finish Cutting 120 65 300 130 Spee
61. occur 4 Push the feed lever up to engage the carriage gears with the leadscrew see Figure 54 Note t may be necessary to rock the car riage handwheel back and forth to mesh the feed gear with the leadscrew Lever Disengaged Up i TAYE 9 B 2 a miarowy A Mb nad 22442 UE Mi Feed Lever Engaged Oo LOU mer s ker XI 2 53 it yn Figure 54 Feed lever in the engaged up position 5 Push the half nut lever up to disengage the half nut from the leadscrew as shown in Figure 54 6 Connect the lathe to power then with one hand poised over the feed lever start the spindle rotation Note The direction of the carriage reverses when the spindle direction reverses 7 When required push down on the feed lever to disengage the carriage from the leadscrew and stop its movement Figure 55 Model G4000 feed rate chart 9 Model G4000 Mig Since 8 09 39 Threading Controls The purpose of this subsection is to orient you with the controls used when threading and how to use the threading dial lf you are unfamiliar with threading on a lathe we strongly recommend that you read books review industry trade magazines or get formal training before beginning any threading projects Feed Lever The feed lever must be in the disengaged down and horizontal for threading operations or the half nu
62. on A machine that is improperly maintained could malfunction leading to serious personal injury or death CHECK DAMAGED PARTS Regularly inspect machine for any condition that may affect safe operation Immediately repair or replace damaged or mis adjusted parts before operating machine MAINTAIN POWER CORDS When disconnect ing cord connected machines from power grab and pull the plug NOT the cord Pulling the cord may damage the wires inside Do not handle cord plug with wet hands Avoid cord damage by keeping it away from heated surfaces high traffic areas harsh chemicals and wet damp locations EXPERIENCING DIFFICULTIES If at any time you experience difficulties performing the intend ed operation stop using the machine Contact our Technical Support at 570 546 9663 Additional Safety for Metal Lathes A4 WARNING Serious injury or death can occur from getting entangled in crushed between or struck by rotating parts on a lathe Unsecured tools or workpieces that fly loose from rotating objects can also strike nearby operators with deadly force To minimize the risk of getting hurt or killed anyone operating this machine MUST completely heed the hazards and warnings below CLOTHING JEWELRY 8 LONG HAIR Tie back long hair remove jewelry and do not wear loose clothing or gloves These can easily get caught on rotating parts and pull you into lathe ROTATING PARTS Always keep hands and body ata safe distance from r
63. or those get ting started in metalworking It has a number of features and capabilities typically only found on higher end lathes and it is jam packed with stan dard accessories The compact size allows this lathe to be mounted to an existing workbench or on the optional Model G4001 stand Model G4000 Mfg Since 8 09 Identification Belt Tensioning Steady Lever Rest Spindle Resi 4 Way Switch Tool Change Gear Post amp Drive System Cover Compound Slide Tailstock Cross Slide Longitudinal Half Nut Lever Figure 1 Model G4000 identification Note For detailed descriptions of basic controls and components refer to Basic Controls beginning on Page 18 NOTICE If you have never used this type of machine or equipment before WE STRONGLY RECOMMEND that you read books review industry trade magazines or get formal training before beginning any projects Regardless of the content in this section Grizzly Industrial will not be held liable for accidents caused by lack of training Model G4000 Mfg Since 8 09 o 3 F C Grizzly MACHINE DATA Industrial Inc Customer Service 7 570 546 9663 To Order Call 800 523 4777 Fax 800 438 5901 MODEL G4000 9 X 19 BENCH LATHE Product Dimensions Ne 250 Ibs Width side to side x Depth front to back x Heights 37 x 20 x 15 in FEN dle TR jo ian 37 x 16 in Shipping Dimensions VL Wood Crate KCE N uu uu EE O Machine
64. osition 4 2 Figure 22 Opposing tightening sequence for the 4 jaw chuck Make fine adjustments to the workpiece posi tion by using a test indicator mounted on a magnetic base and adjusting the jaws until the workpiece is precisely aligned for your operation see Figure 23 for an example Note Refer to ACCESSORIES on Page 43 for test indicator options from Grizziy gt e m T INE c N Low YA R Test R Indicator Sue 7 En Figure 23 Example of using a test indicator to precisely align a non concentric workpiece 24 AWARNING Always use a low spindle speed when machining non concentric or off center workpieces to reduce the risk of ejecting the workpiece from the holding device at a high rate of speed Failure to heed this warning could lead to serious personal injury death or property damage Faceplate The faceplate is used to hold non concentric and off center parts Although more versatile in mount ing these types of workpieces than the 4 jaw chuck it requires more work to properly clamp the workpiece see Figure 24 for an example Figure 24 Example of a non concentric workpiece clamped to a faceplate NOTICE You must use a minimum of three inde pendent clamping devices when using the faceplate to hold a workpiece Refer to ACCESSORIES on Page 43 for clamping options from Grizzly Model G4000 Mfg Since 8 09 Centers Your Model G400
65. otating parts especially those with projecting surfaces Never hold any thing against rotating workpiece such as emery cloth that can pull you into lathe GUARDING Guards and covers protect against entanglement or flying objects Always ensure they are properly installed while machine is running ADJUSTMENT TOOLS Remove all chuck keys wrenches and adjustment tools before turning lathe ON A tool left on the lathe can become a deadly projectile when spindle is started SAFE CLEARANCES Before starting spindle verify workpiece has adequate clearance by hand rotating it through its entire range of motion NEW SETUPS Test each new setup by starting spindle rotation at the lowest speed and standing to the side of the lathe until workpiece reaches full speed and you can verify safe rotation SPINDLE SPEEDS Using spindle speeds that are too fast for the workpiece or clamping equipment can cause rotating parts to come loose and strike nearby people with deadly force Always use slow spindle speeds with large or non concentric work pieces Never exceed rated RPM of the chuck LONG STOCK SAFETY Long stock can whip violently if not properly supported Always support any stock that extends from the chuck headstock more than three times its own diameter CLEARING CHIPS Metal chips can be razor sharp Avoid clearing them by hand or with a rag Use a brush or vacuum instead 8 9 SECURE WORKPIECE An improperly secured
66. r Approximate Assembly 8 Setup rns nnns 1 Hour Serial Number Bed Back Right End See EEE No Certified by a Nationally Recognized Testing Laboratory No Features Chip and Splash Guard Included Hardened and Ground Cast lron Bed Quick Change Gearbox Offers up to 27 Standard and 11 Metric Threads from 8 to 56 Threads Per Inch Threading Dial Model G4000 Mfg Since 8 09 o SECTION 1 SAFETY For Your Own Safety Read Instruction Manual Before Operating This Machine The purpose of safety symbols is to attract your attention to possible hazardous conditions This manual uses a series of symbols and signal words intended to convey the level of impor tance of the safety messages The progression of symbols is described below Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures Always use common sense and good judgment 4DANGER AWARNING CAUTION Indicates an imminently hazardous situation which if not avoided WILL result in death or serious injury Indicates a potentially hazardous situation which if not avoided COULD result in death or serious injury Indicates a potentially hazardous situation which if not avoided MAY result in minor or moderate injury It may also be used to alert against unsafe practices NOTICE This symbol is used to alert the user to usef
67. res the pivot arm then lower the 120 127T gears away from the a gears see Figure 48 4 Remove the E clip that secures the a gears then remove the gears from the shaft see Figure 50 Model G4000 Mfg Since 8 09 a Change Gears N Keyed Bushing Me Figure 50 a change gears and shaft components Carefully remove the keyed bushing from the center of the gears orient the 28T and 40T gears together then re insert the bushing to secure the assembly Slide the a gears onto the gear shaft so that the 28T gear is facing out and the 40T gear meshes with the 80T gear above it then secure them in place with the E clip Remove the special bolt and washers that secure the 120 127 combo gear then remove the gears from the gear shaft see Figure 51 120 127T Gears TT KF qoe ce der zj 2 JE a PP Special T Nut rd gt i o D Li Pp ul all 1 11 Special Bolt amp Washers b Change Gear Figure 51 120 127T Gears and b change gear removed Carefully remove the keyed bushing from the center of the gears orient the 120T and 127T gears together then re insert the bushing to secure the assembly Model G4000 Mig Since 8 09 10 11 12 13 14 15 16 Figure 52 Change gears configured for a feed With the 120T gear facing out insert the special bolt with the slotted washer through the front of the assem
68. s Wood 3 What is your annual household income 20 000 29 000 30 000 39 000 40 000 49 000 50 000 59 000 60 000 69 000 70 000 4 What is 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 Industrial Inc 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
69. slide sits on the cross slide and is the base for the tool post This slide rotates around its mounting on the cross slide and moves in and out using the handwheel These features allow the operator to engage the cutting tool with the workpiece at any angle necessary for the operation Tools Needed Qty MEN 1 To set the compound slide angle 1 Loosen the hex nuts on either side of the compound slide see Figure 38 Compound Handwheel amp Scale Figure 38 a slide 2 Rotate the slide until the desired angle is indi cated on the angle scale then re tighten the two hex nuts Model G4000 Mig Since 8 09 Tool Holders Your Model G4000 lathe ships with a 4 way tool post and C type tool holder The advantage of the 4 way tool post is that it can hold four cutting tools at one time and each tool can be quickly indexed rotated to the workpiece as needed 4 Way Tool Post Tools Needed Qty Hex Wrench 6mm 1 To use the 4 way tool post 1 Loosen the tool post cap screws until the tool fits underneath them as shown in Figure 39 then evenly and firmly tighten the cap screws to secure the tool NOTICE To properly secure the tool against the forces of cutting the tool must be firmly secured with at least two post cap screws Figure 39 4 way tool post with tool mounted 2 Repeat Step 1 for any remaining tools 3 Loosen the lock lever rotat
70. spindle still see Figure 15 Note If removing a chuck insert the remain ing chuck bar into a scroll keyway as shown in Figure 15 Figure 15 Chuck bar positioning 4 Rotate the chuck or faceplate counterclock wise to unthread it from the spindle then thoroughly clean and lubricate it 44 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 work results Model G4000 Mig Since 8 09 3 Jaw Chuck The 3 jaw chuck included with your lathe is a scrolling type chuck which means all three jaws move equally when the chuck key is turned This jaw configuration is used to hold concentric workpieces that are centered with equal pressure from all three jaws There is also a reverse set of jaws included with your lathe that accommodate additional workpiece configurations see Figure 16 for examples Both sets of jaws can hold a workpiece on the inside or outside surface of the jaw No matter how you configure the jaws make sure the workpiece is firmly secured to the chuck Mount or remove the 3 jaw chuck on the spindle according the instructions beginning on Page 20 Clamping on an Outside D
71. t will not engage with the leadscrew see Figure 56 Feed Lever Disengaged Down amp Horizontal Figure 56 The feed lever in the disengaged position 40 Half Nut Lever The half nut lever engages the carriage with the leadscrew which moves the cutting tool along the length of the workpiece see Figure 57 Engaged Down FWON kiye Side a EG ES a A ER MEET Fe wj d Wa dt Figure 57 Hait nt nut Te ptt down for threading operations Thread Dial amp Chart The numbers on the thread dial are used with the thread dial chart to show when to engage the half nut during inch threading The thread dial gear must be engaged with the leadscrew for this to work Loosen the cap screw that secures the thread dial then pivot it so that the dial gear meshes with the leadscrew as shown in Figure 58 eadscrew UE Figure 58 Thread dial gear engaged with the leadscrew Model G4000 Mig Since 8 09 To use the thread dial chart see Figure 59 find the TPI threads per inch on the chart that you want to cut then reference the dial number to the right of it The dial numbers indicate when to engage the half nut for a specific thread pitch Note The thread dial chart can also be found on the front of the change gear door THREAD DIAL Figure 59 Thread dial chart Model G4000 Mfg Since 8 09 For example to cut a TPI of 11 engage the half nut when the thread dia
72. tension on the spindle belt by pulling the belt tensioning lever all the way forward 5 Position the spindle belt onto the pulley combination as indicated under the selected spindle speed in the chart then push the belt tensioning lever all the way back to apply the proper tension to the spindle belt Note Use the illustrations in Figure 46 on the next page to aid in the spindle belt con figuration 6 Close and secure the change gear cover before connecting the machine to power Example You will need to configure the lathe for a spindle speed of 1200 RPM as required by Example A on the previous page Step 1 Examine the spindle speed chart to find that the available speed of 1000 RPM is the clos est to the calculated speed Step 2 Note that the spindle belt configuration underneath 1000 RPM on the chart is AC2 Step 3 Position the spindle belt on the second pulley slot on the motor and spindle pulleys Note The pulley slots are counted 1 through 3 beginning with the outside slot Model G4000 Mfg Since 8 09 120 RPM 300 RPM 400 RPM BC1 BC2 AC1 1000 RPM 2000 RPM AC2 AC3 Figure 46 Illustrations of spindle belt configurations for each available spindle speed Feed Rate Lever NOTICE Attempting to move the feed rate lever when The feed rate lever shown in Figure 47 is used UE Spindis EPO ANNO WII KANA JE with the change gears to provide the various pow ered feed rates for the
73. ter line to cut shallow tapers in a workpiece mounted between centers When the tailstock is offsettoward the operator the machined workpiece will be smaller at the tailstock end Conversely if the tailstock is offset away from the operator the taper will be smaller at the spindle end Tools Needed Qty Hex Wrench 4 1 Wrench certe 1 To set the tailstock offset 1 Loosen the tailstock lock nut see Figure 28 Adjustment Set Screw 1 of 2 Figure 28 Tailstock offsetting controls 2 Alternately loosen and tighten the two adjust ment set screws one on either side of the tailstock until the desired offset is indicated on the offset scale then retighten the lock nut 3 return the tailstock back to the original position repeat Step 2 until the centered position is reached Note For purposes of accuracy you may want to perform the Aligning Tailstock pro cedure on this page after offset adjustments have been made Model G4000 Mfg Since 8 09 Aligning Tailstock The tailstock was aligned with the spindle at the factory However we recommend that you take the time to ensure that the tailstock is aligned to your own desired tolerances especially if you have made tailstock offset adjustments To align the tailstock with the spindle 1 Use a precision level to make sure the lathe bedway is exactly level from side to side and front to back If necessary use shims betwee
74. the ball with the tip of the oil bottle filled with ISO 32 oil or equivalent and squirt once For other com ponents thoroughly clean them with a shop rag and mineral spirits then use a clean rag or brush to apply a thin coat of lubricant we recommend a good quality way oil NOTICE When lubricating the ball oilers inside the change gear cover DO NOT allow any lubri cant to contact the belts or pulleys If lubri cant does get on these parts thoroughly clean the pulleys and replace the belts with new ones before continuing operations A7 EL E 4 I Quick Change Oil Cups 1 Squirt M Ball I Oilers TEST EN X AGO Ec mmm MN 29 Leadscrew Bearing Ball Oilers Ball Oilers gt 2 m 7 gt AN S Figure 73 Ball oilers inside the change gear Figure 75 Leadscrew bearing ball oilers and cover quick change gear oil cups m Carriage Handwheel L Ball Oiler E rj Fi w j i d 1 w v 4 Eo gt AMO ae Fe 7 P Ar Daily Lubrication Chart No of Days Ei ub do REDE 4 Change Gears 4 Spindle Bearings Leadscrew Bearings Quick Change Cups Carriage Handwheel Apron 7 Tailstock 7 Leadscrew Bushing Rack ISO68WayON 81 Length Leadsorew Threads 150 68 Way Oil 81 Length Bedways ISO68 WayOi 81 Length
75. these items get Hex Bolts M10 1 5 x 30 2 lost in packaging materials while unpack Hex Bolt M8 1 25 x 30 C Type Holder 1 ing or they are pre installed at the factory Hex Nuts M8 1 25 C Type Holder 1 8 x 20mm C Type Holder 1 Phillips Head Screws M8 1 25 x 16 4 Nuts 8 1 25 3 High Hex Nut M8 1 25 1 Flat Washers 8mm 9 Compression Spring 10 x 40mm 1 12 o Model G4000 Mfg Since 8 09 Cleanup The unpainted surfaces of your machine are coated with a heavy duty rust preventative that prevents corrosion during shipment and storage This rust preventative works extremely well but it will take a little time to clean Be patient and do a thorough job cleaning your machine The time you spend doing this now will give you a better appreciation for the proper care of your machine s unpainted surfaces There are many ways to remove this rust preven tative but the following steps work well in a wide variety of situations Always follow the manufac turer s instructions with any cleaning product you use and make sure you work in a well ventilated area to minimize exposure to toxic fumes Before cleaning gather the following e Disposable Rags e Cleaner degreaser WDe40 works well e Safety glasses amp disposable gloves e P
76. tion With normal wear over an extended period of use adjustment of the half nut guide bar may be necessary The goal of adjust ing the half nut guide bar is to remove excessive play so that the half nut easily and firmly engages the leadscrew but will not tilt from side to side when engaged with the leadscrew for threading operations Tools Needed Qty Hex Wrench 5mm 1 Wrench 1 Standard Screwdriver 1 1 Adjustment Hex Nuts amp Set Screws Figure 85 Half nut adjustment components To adjust the half nut guide bar 1 DISCONNECT LATHE FROM POWER 2 Remove the thread dial assembly 3 Loosen the two adjustment hex nuts shown in Figure 85 then adjust the set screws in small increments 4 Engage the half nut with the leadscrew and rock the carriage back and forth with the handwheel 5 Repeat Steps 3 4 until you are satisfied with the adjustment then without moving the set screws re tighten the hex nuts and re install the thread dial assembly 53 SECTION 8 WIRING These pages are current at the time of printing However in the spirit of improvement we may make chang es to the electrical systems of future machines Compare the manufacture date of your machine to the one stated in this manual and study this section carefully lf there are differences between your machine and what is shown
77. ture wear of the sliding devices Meni 83 Somna slide ai adjustment hex nuts and set screws 3 Loosen the set screws and move the device back and forth to make sure the gibs are loose then tighten the set screws just until you feel resistance 4 Move the device back and forth and loosen or tighten the set screws equally until you are satisfied with the gib adjustment then with out moving the set screws re tighten the hex nuts to secure the setting Model G4000 Mfg Since 8 09 Compound Slide Backlash Backlash is the amount the handwheel turns in one direction before the slide begins to move Note When adjusting backlash keep in mind the goal is to remove excess backlash without bind ing the movement of the slide Overtightening will cause excessive wear to the cross slide leadscrew and nut Tools Needed Qty Wrench 10mm 1 Phillips Screwdriver 2 1 To adjust the cross slide backlash 1 DISCONNECT LATHE FROM POWER 2 Remove the compound slide from the cross slide then loosen or tighten the adjustment screw shown in Figure 84 until you are satis fied with the amount of backlash Adjustment Screw Figure 84 Cross slide backlash adjustment screw Model G4000 Mig Since 8 09 Adjusting Half Nut The leadscrew half nut should engage the leadscrew firmly without tilting from side to side during opera
78. ual noises should be inves tigated and corrected before operating the machine further Always disconnect the machine from power when investigating or correcting potential problems Model G4000 Mfg Since 8 09 8 Make sure the chuck or spindle is rotating in a counterclockwise direction the top of the chuck or spindle should be moving toward the operator lIf the chuck or spindle is not rotating in a counterclockwise direction move the spin dle switch to the STOP position discon nect the machine from power then check the motor and spindle switch wiring refer to the Wiring Diagram on Page 55 If you still cannot remedy the problem contact our Tech Support at 570 546 9663 for assistance 9 Turn the lathe OFF by moving the spindle switch to the STOP position Spindle Bearing Break In NOTICE Successfully complete all of the spindle bearing break in steps to avoid rapid dete rioration of the spindle bearings and other related parts To perform the spindle bearing break in 1 DISCONNECT LATHE FROM POWER 2 Make sure that you have successfully com pleted all of the Test Run steps in the previ ous procedure 3 Configure the spindle belt for 120 RPM refer to Spindle Speed on Page 32 for detailed instructions 4 Connect the lathe to power turn the spindle switch to the FWD position then let the lathe run for 10 minutes Model G4000 Mfg Since 8 09 5 Turn the spindle switch to the ST
79. ul information about proper operation of the machine Safety Instructions for Machinery AWARNING OWNER S MANUAL Read and understand this owner s manual BEFORE using machine TRAINED OPERATORS ONLY Untrained oper ators have a higher risk of being hurt or killed Only allow trained supervised people to use this machine When machine is not being used dis connect power remove switch keys or lock out machine to prevent unauthorized use especially around children Make workshop kid proof DANGEROUS ENVIRONMENTS Do not use machinery in areas that are wet cluttered or have poor lighting Operating machinery in these areas greatly increases the risk of accidents and injury MENTAL ALERTNESS REQUIRED Full mental alertness is required for safe operation of machin ery Never operate under the influence of drugs or alcohol when tired or when distracted ELECTRICAL EQUIPMENT INJURY RISKS You can be shocked burned or killed by touching live electrical components or improperly grounded machinery To reduce this risk only allow qualified service personnel to do electrical installation or repair work and always disconnect power before accessing or exposing electrical equipment DISCONNECT POWER FIRST Always discon nect machine from power supply BEFORE making adjustments changing tooling or servicing machine This prevents an injury risk from unintended startup or contact with live electrical components EYE PROTE
80. unding 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 Extension Cords We do not recommend using an extension cord with this machine If you must use an extension cord only use it if absolutely necessary and only on a temporary basis Extension cords cause voltage drop which can damage electrical components and shorten motor life Voltage drop increases as the extension cord size gets longer and the gauge size gets smaller higher gauge numbers indicate smaller sizes Any extension cord used with this machine must be in good condition and contain a ground wire and matching plug receptacle Additionally it must meet the following size requirements Minimum Gauge Size 14 AWG Maximum Length Shorter is Better 50 ft Model G4000 Mfg Since 8 09 SECTION 3 SETUP 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 during the entire setup process AWARNING HEAVY LIFT Straining or crushing injury may occur from improperly lifting machine or some of its parts Toreducethis risk get help from other people and use a forklift or other lifting equipm
81. up and mesh Cutting tool 1 Tool holder not tight enough 1 Check for debris clean and re tighten or machine 2 Cutting tool too far out from holder lack of 2 Re install cutting tool with no more than 4 of total components vibrate support length is sticking out of tool holder a during 3 Too much play in gibs 3 Adjust gibs Page 52 4 Cutting tool is dull 4 Sharpen replace 5 Incorrect spindle speed or feed rate 5 Adjust for proper spindle speed and feed rate Page 32 Cross compound 1 Too much play in gibs 1 Adjust gibs Page 52 slide or carriage 2 Handwheel s loose 2 Tighten handwheel fasteners feed nas sloppy 3 Too much leadscrew backlash cross slide 3 Adjust leadscrew backlash Page 53 operation only 4 Leadscrew mechanism worn or out of 4 Tighten any loose fasteners on leadscrew adjustment mechanisms check for excessive wear replace if necessary Cross compound 1 Gibs are loaded up with chips grime 1 Remove gibs clean ways lubricate and properly slide or carriage adjust gibs Page 52 feed hard to move 2 Gibs are too tight 2 Adjust gibs Page 52 3 Leadscrew backlash setting too tight cross 3 Properly adjust cross slide leadscrew backlash slide only Page 53 4 Bedways are dirty dry 4 Clean and lubricate bedways 5 Gearing is at fault 5 Inspect replace gearing Inaccurate turning 1 Tailstock not properly aligned with 1 Properly align tailstock with headstock Page
82. us ae pr T TENET 130 2000 RPM LETE Threaded spin Be AS a pa Tapered Roller Tailstock Info CT AN RE EE EE NE EEE 1 9 16 in LE WAG EE EN EEE EE ik MT 2 WallSiGck BE PET EE 1 002 in Threading Info Number or Longitudmal Feeds 18 Range of Longitudinal 0 0047 0 0120 in rev Number of Inch FINE io Eo o a nos A ot D 27 Pange AN INE Ske u u uuu u u GA Tm 8 56 Me Ev 11 Range ol Metio TAKE EE EE EE SE ee 0 5 3 0 mm Dimensions PN 4 1 2 in Carriage Leadscrew Diamet er 9 16 in F TP EEE ke na ni ye eta a 16 TPI Carriage Leadscrew ka f kt kt a k ak ta f n pi bk ab sal s p s 25 in PN 6 1 3 4 in FOlOWNOSDCADACH NEN E c 1 3 4 in FE T M 7 1 2 in Other OO OU ANNO te G4001 Construction oct Cast Iron l GO D OE EC CNN Cast Iron Fl Cast Iron s M Hardened and Precision Ground Cast Iron DODY mr ea i di Cast Iron FAA NE PEEL UU TTE Epoxy Other Specifications CO are MEE T China VV I US ja an su 1 Yea
83. utting steel and alloys Figure 69 20 Pc Carbide Tipped Tool Bit Sets H2670 HSS Square Tool Bits Our ground tool bits are M 2 HSS making them some of the most durable tool bits around Make your own specialized cutters in any shape using a silicon carbide grinding wheel G8235 37 on your grinder Figure 70 H2670 HSS Square Tool Bits order online at WWW griZZIY COM or call 1 800 323 4777 Model G4000 Mig Since 8 09 45 Glanze 7 Pc Insert Turning Tool Sets H5680 5 16 H5681 12mm H5682 Carbide Inserts Package of 10 Here s a precision set for precision turning These tools have been machined to exacting specifica tions and feature rugged tool steel bodies with black oxide finish They all use the same carbide inserts that are indexable to use all four faces Supplied in a fitted case Figure 71 Glance 7 Pc Insert Turning Tool Sets H5936 2 Pc Knurling Tool Set This 2 piece set includes a gt x 4 Single Knurling Toolholder and a gt x 4 Double Knurling Toolholder with Pivoting Head Both have a black oxide finish Figure 72 H5936 2 Pc Knurling Tool Set order online at WWW grizZZIY COM or call 1 600 523 4777 46 o Model G4000 Mfg Since 8 09 SECTION 6 MAINTENANCE AWARNING To reduce risk of shock or accidental startup always disconnect machine from power before adjustments maintenance or service Schedule For optimum performance from your
84. xact position of the tool Both the scale display and remote display come with a 0 0005 five ten thousandths of an inch resolution inch or millimeter display zero keys and ON OFF keys The scale has an 8 range and its display features ABS or INC mode as well as a Hold key Both displays read independently of each other too You ll be able to see your depth at a glance with the large 1 2 character remote display The 6 data cable is long enough to mount the remote display in almost any convenient location Figure 66 110118 Mini Digital Readout Kit order online at WWW grizZZIY COM or call 1 800 523 4777 44 Model G4000 Mig Since 8 09 G1069 MT 2 Live Center Set A super blend of quality and convenience this live center set offers seven interchangeable tips High quality needle bearings prolong tool life and special tool steel body and tips are precision ground Supplied in wooden box Figure 67 G1069 Live Center Set G9318 MT 2 Tailstock Turret This precision Tailstock Turret will save you time and money With six tool sockets you can quickly change from one machining operation to the next within seconds Figure 68 G9318 MT 2 Tailstock Turret 20 Pc Carbide Tipped Tool Bit Sets 9775 4 G9776 3 G9777 V 2 An exceptional value for carbide lathe tool bits Twenty piece sets offer tremendous savings over bits sold individually Includes ten C 2 grade bits and ten C 6 grade bits for c
85. your opera tion you will need to 1 Determine the spindle speed RPM needed for your operation and 2 configure the spindle belt on the pulleys for the calculated speed 4AWARNING The gears pulleys and belts inside the change gear cover represent severe entanglement haz ards ALWAYS discon nect the lathe from power before opening the change gear cover Model G4000 Mig Since 8 09 Calculating Correct Spindle Speed 1 Use the table in Figure 43 to determine the recommended cutting speed for the workpiece material Note Cutting speeds are expressed in SFM surface feet per minute that the workpiece moves against the cutter which is different from the spindle speed RPM Recommended Cutting Speeds Average Tool Speed sfm 350 250 4 Note These values are based on HSS cutting tools For carbide cutting tools double the aver age speed These values are a guideline only Refer to the MACHINERY S HANDBOOK for more detailed information __ 90 40 Figure 43 Cutting speed table 2 Determine the final diameter in inches for the cut you intend to make Note For this step you will need to aver age out the diameters or work with the finish diameter Model G4000 Mfg Since 8 09 Use the following formula to determine the correct spindle speed RPM for your operation Cutting Speed SFM x 4 Spindle Speed iii Diameter of Cut Example A You will finish cut 1 2 di

MODEL G4000 9" X 19" BENCH LATHE

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MODEL G4000 9&quot; X 19&quot; BENCH LATHE

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MODEL G4000 9" X 19" BENCH LATHE