Grizzly Industrial g0749 - Manuals

Model G0746/G0749 (Mfg. Since 3/13) -5- controls & components refer to figures 3–8 and the following descrip- tions to become familiar with the basic controls of this lathe. Many of the controls will be explained in greater detail later in this manual. Headstock A. Spindle Speed Range Lever: sel...

Model G0746/G0749 (Mfg. Since 3/13) -7- control panel Safety foot brake z. coolant pump Switch: Controls coolant pump motor. AA. EMERGENcy STOp button: stops all machine functions. twist clockwise to reset. Ab. power Lamp: illuminates when main power switch is turned oN and EMErgENCy stop button is ...

-14- Model G0746/G0749 (Mfg. Since 3/13) 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 alw...

-16- Model G0746/G0749 (Mfg. Since 3/13) Additional Safety for Metal Lathes SpEED RATES. operating the lathe at the wrong speed can cause nearby parts to break or the workpiece to come loose, which will result in dan-gerous projectiles that could cause severe impact injuries. large or non-concentric...

Model G0746/G0749 (Mfg. Since 3/13) -17- Additional chuck Safety ENTANGLEMENT. Entanglement with a rotat-ing chuck can lead to death, amputation, broken bones, or other serious injury. Never attempt to slow or stop the lathe chuck by hand, and always roll up long sleeves, tie back long hair, and rem...

-18- Model G0746/G0749 (Mfg. Since 3/13) SEcTiON 2: pOWER SuppLy Availability Before installing the machine, consider the avail-ability and proximity of the required power supply circuit. If an existing circuit does not meet the requirements for this machine, a new circuit must be installed. To mini...

Model G0746/G0749 (Mfg. Since 3/13) -19- connection Type figure 10. typical setup of a permanently connected machine. Power Source Locking Disconnect Switch Machine Ground Ground Conduit Conduit a permanently connected (hardwired) power sup-ply is typically installed with wires running through mount...

Model G0746/G0749 (Mfg. Since 3/13) -21- inventory Main components (figure 12) Qty. A. three-Jaw Chuck 10" (installed) ................ 1 b. steady rest ................................................ 1 c. Follow rest ................................................. 1 D. 4-Way tool post .........

-22- Model G0746/G0749 (Mfg. Since 3/13) 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 c...

Model G0746/G0749 (Mfg. Since 3/13) -23- Site considerations figure 15. Minimum working clearances. Keep Workpiece Loading Area Unobstructed Lathe Electrical Cabinet Min. 30" Wall Illustration Not To Scale = Electrical Connection A B Weight Load Refer to the Machine Data Sheet for the weight of ...

Model G0746/G0749 (Mfg. Since 3/13) -25- anchoring machinery to the floor prevents tipping or shifting and reduces vibration that may occur during operation, resulting in a machine that runs slightly quieter and feels more solid. if the machine will be installed in a commercial or workplace setting,...

-26- Model G0746/G0749 (Mfg. Since 3/13) With the exception of the carriage handle and cross slide handwheel, the lathe is shipped fully assembled. Use a 5mm hex wrench to thread the carriage handle into the carriage handwheel. slide the cross slide handwheel onto the shaft and secure it with the in...

Model G0746/G0749 (Mfg. Since 3/13) -27- Lubricating Lathe GEARBOXES MUST BE FILLED WITH OIL! MACHINE MAY NOT BE SHIPPED WITH OIL! Requires Oil Before Operation or Warranty Will Be Void. the headstock, gearbox, and apron oil reservoirs must have the proper amount of oil in them before the lathe can ...

-28- Model G0746/G0749 (Mfg. Since 3/13) To connect lathe to power: 1. Make sure the main power switch on the lathe electrical cabinet is turned to the oFF position, then open the door. 2. insert the incoming power wires through the opening shown in figure 23. figure 23. location of opening in elect...

Model G0746/G0749 (Mfg. Since 3/13) -31- 16. Move the spindle lever to the middle (oFF) position. open the end-gear cover on the left side of the headstock. this activates a safety switch that should prevent the spindle from starting while this cover is open. Note: Remove the cap screw on the front ...

-32- Model G0746/G0749 (Mfg. Since 3/13) SEcTiON 4: OpERATiONS Operation Overview To complete a typical operation, the operator does the following: 1. puts on safety glasses, rolls up sleeves, removes jewelry, and secures any clothing, jewelry, or hair that could get entangled in moving parts. 2. Ex...

-34- Model G0746/G0749 (Mfg. Since 3/13) installation & Removal Devices Because chucks are heavy and often awkward to hold, some kind of lifting, support, or protec-tive device should be used during installation or removal. the weight and size of the chuck will determine the appropriate device t...

Model G0746/G0749 (Mfg. Since 3/13) -35- figure 34. Cam line positioned between the "V" marks after the camlocks are fully tightened. Cam line between “V”s 5. incrementally tighten the camlocks in a criss- cross or star pattern to ensure that the chuck seats evenly against the spindle. 6. Wh...

-36- Model G0746/G0749 (Mfg. Since 3/13) chuck Removal To remove the chuck: 1. disCoNNECt lathE FroM poWEr! 2. Use an appropriate lifting, support, or protec- tive device to protect the ways and support the chuck (refer to installation & Removal Devices section for more details). 3. loosen the c...

Model G0746/G0749 (Mfg. Since 3/13) -37- changing Jaw Set the 3-jaw scroll chuck included with the lathe features inside and outside hardened steel jaw sets (see figure below), which move in unison to center a concentric workpiece. When installing the jaws, it is important to make sure they are inst...

-38- Model G0746/G0749 (Mfg. Since 3/13) figure 42. 4-jaw tightening sequence. 1 2 3 4 Workpiece Center Point figure 43. generic picture of non-cylindrical workpiece correctly mounted on the 4-jaw chuck. 4-Jaw chuck refer to the chuck installation or chuck Removal sections for instructions on instal...

-40- Model G0746/G0749 (Mfg. Since 3/13) Tailstock installing Tooling using Quill 1. Move the quill lock lever away from the spin- dle to unlock the quill. 2. turn the quill handwheel clockwise to move the quill toward the spindle or counterclock-wise to move it away from it. 3. Move the lock lever ...

Model G0746/G0749 (Mfg. Since 3/13) -41- To install tooling in the tailstock: 1. With the tailstock locked in place, unlock the quill, then use the handwheel to extend it approximately 1". 2. thoroughly clean and dry the tapered mating surfaces of the quill and the center, making sure that no li...

Model G0746/G0749 (Mfg. Since 3/13) -43- 8. Use calipers to measure both ends of the workpiece. — if the test stock is thicker at the tailstock end, move the tailstock toward the front of the lathe 1 ⁄ 2 the distance of the amount of taper, as shown in the figure below. Move tailstock toward front o...

Model G0746/G0749 (Mfg. Since 3/13) -45- Note: The maximum quill travel is 4 3 ⁄ 4 ", but we do not recommend extending the quill more than 2" or stability and accuracy will be reduced. Removing center from Tailstock Mounting Workpiece between centers figure 58. Example photo of a workpiece ...

-46- Model G0746/G0749 (Mfg. Since 3/13) 3. position the steady rest with the base clamp where required to properly support the workpiece, then tighten the bottom hex nut shown in figure 59 to secure it in place. 4. loosen the hex nut that secures the top half of the steady rest and open the top, as...

-48- Model G0746/G0749 (Mfg. Since 3/13) 2. rotate the rest to the desired angle, as indi- cated by the scale at the base, then retighten the four hex nuts. Tip: The first time you set the angle of the compound rest for cutting threads, mark the location on the cross slide as a quick refer-ence poin...

-50- Model G0746/G0749 (Mfg. Since 3/13) the handwheels shown in figure 69 allow the operator to manually move the cutting tool. carriage Handwheel the carriage handwheel moves the carriage left or right along the bed. it has a graduated dial with 0.005" increments. one full revolution moves the...

Model G0746/G0749 (Mfg. Since 3/13) -51- Spindle Speed Using the correct spindle speed is important for getting safe and satisfactory results, as well as maximizing tool life. to set the spindle speed for your operation, you will need to: 1) determine the best spindle speed for the cutting task, and...

-52- Model G0746/G0749 (Mfg. Since 3/13) configuration Example Both the carriage and cross slide have power feed capability when the carriage is engaged with the feed rod. the rate that these components move per revolution of the feed rod is controlled by the quick-change gearbox lever and dial posi...

Model G0746/G0749 (Mfg. Since 3/13) -53- power feed controls Use figures 74–75 and the following descriptions to understand the power feed controls. Note: Before using power feed, you may have to re-configure the end gears, depending on how they are set up. Refer to End Gears on Page 55 for detailed...

-54- Model G0746/G0749 (Mfg. Since 3/13) Setting power feed Rate the feed-rate chart displays the settings for the headstock feed controls for feed rates. Using the controls on the lathe, follow along with the example below to better understand how to set the lathe for the desired power feed rate. 3...

Model G0746/G0749 (Mfg. Since 3/13) -55- the end gears must be correctly setup for power feed, threading, and pitch turning. Use the photo below to identify the upper z1 combination gear, middle 36t and 72t change gears, and lower z2 combination gear, which are also referenced on the headstock feed,...

-56- Model G0746/G0749 (Mfg. Since 3/13) End-Gear configuration Example Follow the example below to better understand how to configure the end gears for inch threading. Tools Needed Qty hex Wrench 6mm .............................................. 1open-End Wrench or socket 24mm ................. 1 ...

Model G0746/G0749 (Mfg. Since 3/13) -57- the following subsections will describe how to use the threading controls and charts to set up the lathe for a threading operation. if you are unfamil-iar with the process of cutting threads on a lathe, we strongly recommend that you read books, review indust...

-58- Model G0746/G0749 (Mfg. Since 3/13) Apron Threading controls the half nut lever engages the carriage with the leadscrew, which moves the carriage and cutting tool along the length of the workpiece for thread-ing operations (see figure 88). important: Make sure the feed lever and feed selection ...

Model G0746/G0749 (Mfg. Since 3/13) -59- Thread Dial chart the thread dial chart is located on the apron, as shown in figure 90. G0746 Machine Labels D (5/06/13) • Label is actual size• Label must be made of oil-resistant material 4,8,12,16,20,24,28,32,40,48,56 Any PositionNon-Numbered PositionNumbe...

-60- Model G0746/G0749 (Mfg. Since 3/13) 1 ⁄ 2 fractional Tpi: Use any opposing number pairs—1/3 or 2/4 on the thread dial (see example in figure 95). 1 2 3 4 Thread Dial TPI Dial Number 1½,2½,3½,4½,5½,6½,9½,10½,11½,13½ Position1,3 or 2,4 figure 95. Example of opposing number groups for cutting 1 ⁄ ...

-62- Model G0746/G0749 (Mfg. Since 3/13) When the coolant pump is turned ON, fluid is delivered through the nozzle attached to the car-riage. the flow is controlled by the valve lever at the base of the nozzle (see figure 100). To use the coolant system on your lathe: 1. Make sure the coolant tank i...

Model G0746/G0749 (Mfg. Since 3/13) -63- chip Drawer the chip drawer catches swarf and metal chips during the machining process. it contains a screen that keeps the large chips from returning to the reservoir with the run-off coolant—this pre-vents the chips from causing pump damage. also, it slides...

-64- Model G0746/G0749 (Mfg. Since 3/13) SEcTiON 5: AccESSORiES aCCEssoriEs order online at www.grizzly.com or call 1-800-523-4777 T23962—iSO 68 Moly-D Way Oil, 5 gal. T23963—iSO 32 Moly-D Machine Oil, 5 gal.Moly-d oils are some of the best we've found for maintaining the critical components of mach...

-66- Model G0746/G0749 (Mfg. Since 3/13) SEcTiON 6: MAiNTENANcE Schedule Ongoing to maintain a low risk of injury and proper machine operation, if you ever observe any of the items below, shut down the machine immediately and fix the problem before continuing operations: • loose mounting bolts or fa...

Model G0746/G0749 (Mfg. Since 3/13) -67- Lubrication Use the information in the charts below as a daily guide for lubrication tasks. We recommend using grizzly t23962 (iso 68) or t23963 (iso 32) lubri-cants (see Accessories, page 64) for most of the lubrication tasks. NOTICE The recommended lubricat...

-70- Model G0746/G0749 (Mfg. Since 3/13) ball Oilers oil type .... grizzly t23963 or iso 32 Equivalentoil amount ......................................1 or 2 squirtslubrication Frequency ................................. daily this lathe has 11 ball oilers that should be oiled on a daily basis befor...

-72- Model G0746/G0749 (Mfg. Since 3/13) the coolant system consists of a fluid tank, pump, and flexible nozzle. the pump pulls fluid from the tank and sends it to the valve, which controls the flow of coolant to the nozzle. as the fluid leaves the work area, it drains back into the tank through the...

Model G0746/G0749 (Mfg. Since 3/13) -73- To change the coolant: 1. position the coolant nozzle over the back of the back splash so that it is pointing behind the lathe. 2. place the 5-gallon bucket behind the lathe and under the coolant nozzle. have another person hold the bucket up to the nozzle to...

-74- Model G0746/G0749 (Mfg. Since 3/13) 5. lubricate the machine as outlined in the lubrication section. Be sure to use an oil can to purge all ball oilers and oil passages with fresh oil. 6. loosen or remove the V-belts so they do not become stretched during the storage period. (Be sure to place a...

Model G0746/G0749 (Mfg. Since 3/13) -75- 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 at (570) 546-9663. Note: Please gather the serial number and manuf...

-76- Model G0746/G0749 (Mfg. Since 3/13) Lathe Operation Symptom possible cause possible Solution Entire machine vibrates upon startup and while running. 1. Workpiece is unbalanced. 2. loose or damaged V-belt(s). 3. V-belt pulleys are not properly aligned.4. Worn or broken gear present.5. Chuck or f...

-78- Model G0746/G0749 (Mfg. Since 3/13) backlash Adjustment Backlash is the amount of free play felt while changing rotation directions with the handwheel. this can be adjusted on the compound rest and cross slide leadscrews. Before beginning any adjustment, make sure all associated components are ...

Model G0746/G0749 (Mfg. Since 3/13) -79- the goal of adjusting the gib screws is to remove sloppiness or "play" from the ways without over-adjusting them to the point where they become stiff and difficult to move. in general, loose gibs cause poor finishes and tool chatter; however, over-tig...

Model G0746/G0749 (Mfg. Since 3/13) -83- as the brake lining wears, the foot pedal develops more travel. if the brake band is not adjusted to compensate for normal wear, the limit switch will still turn the lathe OFF, but the spindle will not stop as quickly. it is especially important that the brak...

-84- Model G0746/G0749 (Mfg. Since 3/13) Replacing brake 1. disCoNNECt lathE FroM poWEr! 2. open the end-gear cover. 3. remove the hex nuts and screws that attach the brake band to the pedal bolt and end block shown in figure 138. figure 138. Brake replacement components. 4. remove the hex nuts and ...

Model G0746/G0749 (Mfg. Since 3/13) -85- 2. tighten the two pre-load bolts so they no lon- ger contact the headstock. 3. Use a slide hammer to remove the two dowel pins from the gap insert. 4. tap the outside of the gap insert with a dead blow hammer to loosen it, then remove it. Gap installation 1....

-86- Model G0746/G0749 (Mfg. Since 3/13) 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 be...

Model G0746/G0749 (Mfg. Since 11/12) -87- READ ELECTRICAL SAFETY ON PAGE 113! Electrical cabinet & Motors

-88- Model G0746/G0749 (Mfg. Since 11/12) READ ELECTRICAL SAFETY ON PAGE 113! circuit Diagram

-90- Model G0746/G0749 (Mfg. Since 3/13) control Rod & brake parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 1 P07460001 CAPTIVE PIVOT PIN 34 P07460034 DOWEL PIN 12 X 25 2 PN09M HEX NUT M12-1.75 35 PB06M HEX BOLT M8-1.25 X 12 3 P07460003 BRAKE BELT PIVOT SLEEVE 36 P07460036 LEFT BRAKE P...

Model G0746/G0749 (Mfg. Since 3/13) -93- Headstock Gears 301 413 417 416 415 414 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 345 346 346 347 348 349 350 351 352 353 353...

-94- Model G0746/G0749 (Mfg. Since 3/13) Headstock Gears parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 301 PVA89.5 V-BELT A89.5 (G0746) 359 P07460359 HEADSTOCK TOP COVER 301 PVA85 V-BELT A85 (G0749) 360 P07460360 CHECK RING 8 X 62MM 302 P07460302 SPINDLE PULLEY 361 P07460361 COMBO GEAR W/...

Model G0746/G0749 (Mfg. Since 3/13) -95- Headstock controls 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 537 538 538 539 540 541 542 543 544 545 545 546 546 547 548 548 549 550 551 551 551 552 553 ...

-96- Model G0746/G0749 (Mfg. Since 3/13) Headstock controls parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 501 P07460501 DOWEL PIN 6 X 40 549 P07460549 HEADED PIVOT PIN 502 PN03M HEX NUT M8-1.25 550 P07460550 SLEEVE 503 PB09M HEX BOLT M8-1.25 X 20 551 PK42M KEY 6 X 6 X 30 504 P07460504 ADJ...

-98- Model G0746/G0749 (Mfg. Since 3/13) Quick-change Gearbox parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 601 PCAP01M CAP SCREW M6-1 X 16 654 P07460639 TAPERED KNOB M10-1.5 X 32 602 P07460602 BEARING FLANGE 655 P07460655 GEARBOX LOWER HUB/LEVER 603 P07460603 BUSHING SEAL 656 PSS16M SET ...

Model G0746/G0749 (Mfg. Since 3/13) -101- Saddle 901 902 903 904 905 906 907 908 909 910 911 912 913 914 914 915 915 915 915 916 916 917 918 919 920 921 922 923 924 925 926 927 928 981 929 929 929 930 930 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953...

-102- Model G0746/G0749 (Mfg. Since 3/13) Saddle parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 901 PCAP60M CAP SCREW M8-1.25 X 55 941 P07460941 CROSS GRADUATED DIAL 902 P07460902 DOWEL PIN 6 X 30 942 P07460942 KNURLED THUMB SCREW M8-1.25 X 18 903 P07460903 CROSS LEADSCREW 943 P07460943 DI...

Model G0746/G0749 (Mfg. Since 3/13) -103- Slides REF PART # DESCRIPTION REF PART # DESCRIPTION 1001 P07461001 TOOL POST BOLT M16-2 X 50 1030 P07460944 DIAL LOCKING PIN 1002 P07461002 GIB ADJUSTMENT SCREW 1031 P07461031 GASKET 1003 P07461003 SET SCREW M5-.8 X 10 DOG-PT 1032 PRP73M ROLL PIN 4 X 30 100...

-104- Model G0746/G0749 (Mfg. Since 3/13) Apron 1101 1102 1102 1103 1104 1105 1106 1106 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 11...

Model G0746/G0749 (Mfg. Since 3/13) -105- Apron parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 1101 PSS139M SET SCREW M6-1 X 10 CONE-PT 1154 P07461154 CARRIAGE HANDWHEEL 1102 PRP29M ROLL PIN 5 X 45 1155 P07461155 DIAL HUB 1103 PSS13M SET SCREW M10-1.5 X 12 1156 PSS132M SET SCREW M5-.8 X 8 ...

Model G0746/G0749 (Mfg. Since 3/13) -109- Electrical cabinet REF PART # DESCRIPTION REF PART # DESCRIPTION 1601 P07461601 TRANSFORMER LAPUELE LBK5-160VA 220-440V 1607 P07461607 CIRCUIT BREAKER DELIXI DZ47-63 400V 2P 1602 P07461602 MASTER POWER SWITCH CHANGJIANG HZ12-40/07 1608 P07461608 CONTACTOR SI...

-110- Model G0746/G0749 (Mfg. Since 3/13) Accessories REF PART # DESCRIPTION REF PART # DESCRIPTION 1701 P07461701 FACEPLATE 17" 1718 PWR16 WRENCH 16MM OPEN-END 1702 P07461702 4-JAW CHUCK 12" 1719 PWR1924 WRENCH 19 X 24MM OPEN-ENDS 1703 P07461703 3-JAW CHUCK 10" W/INSIDE JAW SET 1720 PWR...

Model G0746/G0749 (Mfg. Since 3/13) -111- front Machine Labels REF PART # DESCRIPTION REF PART # DESCRIPTION 1801 PLABEL-12A READ MANUAL LABEL 1808 PPAINT-1 GRIZZLY GREEN TOUCH-UP PAINT 1802 PLABEL-83B EYE/FACE WARNING LABEL 1809 P07461809 MODEL NUMBER LABEL (G0746) 1803 P07461803 MACHINE ID LABEL (...

-112- Model G0746/G0749 (Mfg. Since 3/13) Rear Machine Labels REF PART # DESCRIPTION REF PART # DESCRIPTION 1814 PLABEL-63 DISCONNECT WARNING LABEL 1817 PLABEL-87 220V 3-PHASE ELECTRICITY LABEL 1815 P07461815 PINCH/ENTANGLEMENT WARNING LABEL 1818 PLABEL-50 BIO HAZARD WARNING LABEL 1816 P07461816 FLU...

Model G0746/G0749 (Mfg. Since 3/13) -113- SEcTiON 10: AppENDiX machine Threading and feeding chart 0. 0. 0.0035 0.007 0.014 0.028 0.056 0.117 0.0037 0.0073 0.0147 0.029 0.059 0.118 0. 0.006 0.012 0.024 0.048 0.096 = 10 10 11 inch 1 1 2 2 3 3 E G F 1 2 Z 1 Z 1 Z 2 Z 2 1 11 1 1 2 3 4 5 6 7 8 9 11 10 2...

-114- Model G0746/G0749 (Mfg. Since 3/13) 123456789 1011 π / n" π m Z 2 Z 1 1 2 3 G E F 0. 5 0. 5620. 5930. 6250. 6560. 6860. 718 0. 75 0. 8120. 8430. 875 1 1. 1251. 187 1. 25 1. 3121. 3751. 437 1. 5 1. 6251. 687 1. 75 2 2. 25 2. 374 2. 5 2. 624 2. 75 2. 874 3 3. 25 3. 374 3. 5 123456789 1011 32...

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