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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.
Overview the primary purpose of the metal lathe is to We are proud to offer the Model g9972z 11" x 26" Light-duty Lathe w/gearbox. this machine make concentric cuts in metal stock. With the lathe, round stock can be made perfectly con- is part of a growing grizzly family of fine met- alworking machinery.
⁄ "-8 x 34 ⁄ " tailstock Quill W. right Feed rate dial K. Quill Lock X. Feed rate gearbox oil sight glass Y. Left Feed rate dial tailstock M. Quill handwheel Chip pan G9972Z 11" x 26" Lathe w/Gearbox...
MACHINE DATA SHEET Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901 MODEL G9972Z 11" X 26" BENCH LATHE W/ GEARBOX Product Dimensions: Weight................................490 lbs. Width (side-to-side) x Depth (front-to-back) x Height................51 x 23 x 19 in.
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The information contained herein is deemed accurate as of 1/6/2014 and represents our most recent product specifications. Model G9972Z PAGE 2 OF 3 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. G9972Z 11" x 26" Lathe w/Gearbox...
Be aware of running machinery. Never operate under the dust hazards associated with each workpiece influence of drugs or alcohol, when tired, or when material, and always wear a NIOSH-approved distracted. respirator to reduce your risk. G9972Z 11" x 26" Lathe w/Gearbox...
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Contact our Technical Support Department at around flammables, or in poorly-lit areas. Keep (570) 546-9663. work area clean, dry, and well lighted to mini- mize risk of injury. G9972Z 11" x 26" Lathe w/Gearbox...
If normal safety pre- failure to do so could result in serious per- sonal injury, damage to equipment, or poor cautions are overlooked or ignored, serious work results. personal injury may occur. G9972Z 11" x 26" Lathe w/Gearbox...
SEcTION 2: cIRcUIT REQUIREMENTS 110v Operation power connection Device the Model g9972z comes with a 5-15 plug, simi- lar to figure 2, to connect the machine to power. GROUNDED Serious personal injury could occur if you 5-15 RECEPTACLE connect the machine to power before com- pleting the setup process.
S. splash pan (not shown) ......1 G2544—Solvent cleaner & Degreaser a great product for removing the waxy shipping grease from your machine during clean up. figure 3. Model g9972z inventory. figure 4. Cleaner/degreaser available from grizzly. -11- G9972Z 11" x 26" Lathe w/Gearbox...
Lock entrances to the shop good working condition. If the lathe falls or or disable start switch or tips over while moving it, serious personal power connection to prevent injury and property damage could result. unsupervised use. -12- G9972Z 11" x 26" Lathe w/Gearbox...
Note: We recommend using a silicon sealant between the flat washers and the chip pan to avoid coolant or other fluids leaking through onto the bench or floor. -13- G9972Z 11" x 26" Lathe w/Gearbox...
Lubrication subsection on page 41. 10. turn the spindle switch to the left "L" posi- tion—the spindle should rotate clockwise and the leadscrew should turn counterclockwise. -14- G9972Z 11" x 26" Lathe w/Gearbox...
Cross slide backlash adjustment (page 48) • disconnect the machine from power, then repeat Steps 4–6 for each of the spindle gib adjustments (page 49) • speeds. -15- G9972Z 11" x 26" Lathe w/Gearbox...
E. Spindle: holds a chuck, faceplate, or center ning any projects. Regardless of the con- for workpiece mounting. tent in this section, Grizzly Industrial will not be held liable for accidents caused by feed Rate Dials: Configure the feed rate lack of training.
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(lever up) and the half-nut (lever down) at the same time, and NEvER force these levers. Always disengage the half-nut (lever up) before moving the power feed lever up. Otherwise, severe damage to the lathe could occur. -17- G9972Z 11" x 26" Lathe w/Gearbox...
Model g9972z lathe is shipped with a 5" dle and fully tighten by hand. if necessary, 3-jaw chuck installed on the spindle, but also...
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HAZARD! protect your hands and the precision ground bedways with plywood or a chuck cradle when removing the lathe chuck! The heavy weight of a falling chuck can cause serious injury. -19- G9972Z 11" x 26" Lathe w/Gearbox...
— if the jaws do not come together evenly, remove them, make sure the numbers of the jaws and jaw guide match, then re- install the jaws. -21- G9972Z 11" x 26" Lathe w/Gearbox...
20. example of aligning workpiece with a test indicator on a 4-jaw chuck. figure 21. Faceplate with properly mounted workpiece clamped in four locations. -22- G9972Z 11" x 26" Lathe w/Gearbox...
Using a center in the Spindle disConneCt Lathe FroM poWer! thoroughly clean the mating surfaces of the Model g9972z lathe includes an Mt#3 dead the center and spindle, then firmly insert the center for the tailstock quill and an Mt#4 dead Mt#4 dead center into the spindle.
(refer to Moving and placement on page 12 for detailed instructions). -24- G9972Z 11" x 26" Lathe w/Gearbox...
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(see figure 26). Move tailstock in half the distance of the taper. Looking down from above. figure 26. tailstock adjustment toward the operator (viewed from above). -25- G9972Z 11" x 26" Lathe w/Gearbox...
Note: The tool post is aligned in four rota- tional positions by an indexing pin in the compound slide that engages indents in the tool post base. -28- G9972Z 11" x 26" Lathe w/Gearbox...
120 (determined sFM) x 4 = 480 more detailed information. Step 3: figure 35. recommend cutting speed table. 480 / 1" (diameter of workpiece) = 480 Result: the correct spindle speed is 480 rpM. -29- G9972Z 11" x 26" Lathe w/Gearbox...
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38. V-belt in the "B–C" configuration. Note: There is hex nut on either end of the idler pulley adjustment stud that is loosened when adjusting the idler pulley. -30- G9972Z 11" x 26" Lathe w/Gearbox...
Otherwise, severe riage to crash into the spindle or tailstock damage to the lathe could occur. resulting in severe damage to the lathe. -31- G9972Z 11" x 26" Lathe w/Gearbox...
40. recommended feed rate table. lever C ins/ 0.0022 0.0045 0.0090 0.0030 0.0060 0.0120 0.0033 0.0067 0.0135 0.0038 0.0077 0.0150 figure 42. Feed rate chart for power feed movement of the carriage. -32- G9972Z 11" x 26" Lathe w/Gearbox...
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43. Change gear pivot arm in lowered examine the chart in figure 42 or figure position. 45, then correctly set feed rate dials for your selected feed rate. -33- G9972Z 11" x 26" Lathe w/Gearbox...
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(figure 42 on page 32) for the lathe. in this case, it will be 0.0150 ipr. lever B n/1" lever 0.50 1.00 2.00 1.25 2.50 0.75 1.50 3.00 1.75 3.50 figure 45. Feed rate chart for threading. -34- G9972Z 11" x 26" Lathe w/Gearbox...
NEvER force engaged (on) these levers. Always disengage the power feed (lever down) before engaging the half- nut. Otherwise, severe damage to the lathe could occur. disengaged (off) figure 47. half-nut lever engaged/disengaged. -35- G9972Z 11" x 26" Lathe w/Gearbox...
DO NOT engage the half-nut when the spin- dle speed is over 300 RpM. Ignoring this instruction could result in damage to the 1 – 8 leadscrew or carriage components. 2, 6 figure 49. thread dial chart. -36- G9972Z 11" x 26" Lathe w/Gearbox...
(g8235-37) on has a resolution of 0.001". this fine set includes a your grinder. molded case for protection and convenience. figure 51. h2670 hss square tool Bits. figure 53. g9849 Magnetic Base/dial indicator Combo. -37- G9972Z 11" x 26" Lathe w/Gearbox...
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⁄ " hss tool • Cut-off tool holder with three hss blades • hex wrenches • protective wooden case figure 57. grizzly dial Calipers. ® figure 55. Model h7540 Metalworking Kit no. 1. -38- G9972Z 11" x 26" Lathe w/Gearbox...
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45˚ at the other. Comes with a wrench and tool bit. Bar size is ⁄ " x 4½", holder is 2¼" x ½", uses ⁄ " tool bits. figure 61. h2987-91 Lathe dogs. figure 59. h2996 double ended Boring Bar. -39- G9972Z 11" x 26" Lathe w/Gearbox...
Keep these surfaces, especially the bedways, rust-free and working smoothly with regular applications of products like Model h8257 primrose armor plate with Moly-d Machine and Way oil (see AccESSORIES on page 37). -40- G9972Z 11" x 26" Lathe w/Gearbox...
69) at all times. Use a stiff brush and mild solvent to remove any debris or grime before using a clean shop rag to wipe on the oil. figure 70. Compound bottom slide. rack Leadscrew figure 69. Longitudinal leadscrew and carriage rack. -43- G9972Z 11" x 26" Lathe w/Gearbox...
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Move the steady rest, carriage, and tailstock to access the entire length of the bedway. We recommend using Model h8257 primrose armor plate with Moly-d Machine and Way oil (see AccESSORIES on page 37). -44- G9972Z 11" x 26" Lathe w/Gearbox...
8. tighten/replace spindle bearings (page 51). 9. Motor bearings are at fault. 9. rotate motor shaft to check for noisy or burnt bearing; repair/replace as necessary. 10. gears are at fault. 10. replace bad gears/bearings. -45- G9972Z 11" x 26" Lathe w/Gearbox...
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12. spindle switch is at fault. 12. test; replace if necessary. 13. Motor is at fault. 13. test/repair/replace. 14. Centrifugal switch is at fault. 14. adjust/replace. -46- G9972Z 11" x 26" Lathe w/Gearbox...
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1. Quill lock is tightened down. 1. turn quill lock counterclockwise to loosen. feed out of tailstock. -47- G9972Z 11" x 26" Lathe w/Gearbox...
(see handwheel back-and-forth until the backlash figures 72–73). amount is acceptable. re-install the compound slide. Compound slide Fasteners (1 of 2) figure 72. Compound slide fasteners. -48- G9972Z 11" x 26" Lathe w/Gearbox...
Gib Adjustments the gibs on the Model g9972z control the accu- racy of the cross slide and compound slide move- ments. these gibs are sliding plates that either increase or decrease pressure on the sliding components around them. Compound slide...
When you are satisfied with the adjustment, keep the set screws from moving while you re-tighten the hex nuts, then re-install the thread dial. -50- G9972Z 11" x 26" Lathe w/Gearbox...
Lower the motor to produce reasonable ten- sion on the ribbed belt, then re-tighten the motor mount hex nuts. re-install the V-belt and close the cover. -51- G9972Z 11" x 26" Lathe w/Gearbox...
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When the dial indicator needle stops mov- ing, there will be no spindle end-play and no bearing preload. it is essential that you find this point without tightening the spanner nut too much and inadvertently preloading the spindle bearings. -52- G9972Z 11" x 26" Lathe w/Gearbox...
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Do not overtighten the outer spanner nut because additional pressure can force the bearings even tighter against the races in the headstock and cause the headstock to compress, crack, or cause bearing failure. -53- G9972Z 11" x 26" Lathe w/Gearbox...
Technical source. Support at (570) 546-9663. The photos and diagrams included in this section are best viewed in color. You can view these pages in color at www.grizzly.com. -54- G9972Z 11" x 26" Lathe w/Gearbox...
P9972Z0517 SLIDE BLOCK P9972Z0537 CAP SCREW M8-1.25 X 35 P9972Z0518 CHIP GUARD P9972Z0538 CAP SCREW M6-1 X 35 P9972Z0519 CAP SCREW M6-1 X 12 P9972Z0539 HANDLE BOLT P9972Z0520 SET SCREW M6-1 X 16 -63- G9972Z 11" x 26" Lathe w/Gearbox...
CAP SCREW M8-1.25 X 25 P9972Z0629 SPRING PLATE P9972Z0614 CAP SCREW M6-1 X 12 P9972Z0630 THREADED COLLAR P9972Z0615 SET SCREW M5-.8 X 16 P9972Z0631 SET SCREW M8-1.25 X 16 P9972Z0616 HEX NUT M5-.8 -64- G9972Z 11" x 26" Lathe w/Gearbox...
MUST maintain the original location and readability of the labels on the machine. If any label is removed or becomes unreadable, REpLAcE that label before using the machine again. contact Grizzly at (800) 523-4777 or www.grizzly.com to order new labels. -70- G9972Z 11" x 26" Lathe w/Gearbox...
Do you think your machine represents a good value? _____ Yes _____No Would you recommend Grizzly Industrial to a friend? _____ Yes _____No Would you allow us to use your name as a reference for Grizzly customers in your area? Note: We never use names more than 3 times.
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FOLD ALONG DOTTED LINE Place Stamp Here GRIZZLY INDUSTRIAL, INC. P.O. BOX 2069 BELLINGHAM, WA 98227-2069 FOLD ALONG DOTTED LINE Send a Grizzly Catalog to a friend: Name_______________________________ Street_______________________________ City______________State______Zip______ TAPE ALONG EDGES--PLEASE DO NOT STAPLE...
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.