Grizzly Industrial G8688 - Manual

-4- Model g8688 (Mfg. 3/09+) The information contained herein is deemed accurate as of 1/3/2010 and represents our most recent product specifications. Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. PAGE 1 OF 3 Model G8688 MACHINE DATA...

-6- Model g8688 (Mfg. 3/09+) 4. ALwAys usE HEArING prOTEcTION wHEN OpErATING MAcHINEry. Machinery noise can cause permanent hearing damage. 5. wEAr prOpEr AppArEL. do not wear loose clothing, gloves, neckties, rings, or jewelry which may get caught in moving parts. Wear protective hair covering to c...

-8- Model g8688 (Mfg. 3/09+) Additional safety for Metal Lathes 1. rEAD AND uNDErsTAND THIs MANuAL bEfOrE OpErATING THIs MAcHINE. yOur sAfETy AND THE prOpEr usE Of THIs MAcHINE Is yOur rEspONsIbILITy. 2. cLEArING cHIps. do not clear chips by hand. use a brush, and never clear chips while the lathe i...

Model g8688 (Mfg. 3/09+) -9- sEcTION 2: cIrcuIT rEQuIrEMENTs figure 2. typical 5-15 plug and receptacle. Grounding Prong is Longest of the Three Prongs Current Carrying Prongs Grounded Outlet 110v Operation full Load Amperage Draw this machine draws the following amps: amp draw ........................

-10- Model g8688 (Mfg. 3/09+) the Model g8688 was carefully packed when it left our warehouse. if you discover the machine is damaged after you have signed for delivery, please immediately call Customer Service at (570) 546-9663 for advice. Save the containers and all packing materials for possible ...

Model g8688 (Mfg. 3/09+) -11- Inventory after all the parts have been removed from the two boxes, you should have the following items: box 1: (figures 3 & 4) Qty A. Model g8688 Mini lathe ............................ 1 b. lathe dog ................................................... 1 c. hex Wre...

-12- Model g8688 (Mfg. 3/09+) Hardware recognition chart

Model g8688 (Mfg. 3/09+) -13- 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-rial. working clearances Consider existing and anticipated needs, size...

-14- Model g8688 (Mfg. 3/09+) the lathe should be mounted or placed on a strong well lit workbench of sufficient height so that you do not need to bend your back to per-form normal operations. To bolt the lathe to your workbench: 1. remove the four M6-1 screws that secure the rubber feet and chip tr...

-16- Model g8688 (Mfg. 3/09+) the purpose of the test run is to make sure the lathe is working properly. To perform the test run: 1. inspect the machine to ensure that all hand tools are out of the way, the chuck key is removed from chuck, and nothing is imped-ing the movement of the chuck. Check th...

Model g8688 (Mfg. 3/09+) -17- Damage to your eyes, lungs, and ears could result from using this machine without proper protective gear. Always wear safety glasses, a respirator, and hearing protection when operating this machine. Loose hair and cloth- ing could get caught in machinery and cause seri...

-18- Model g8688 (Mfg. 3/09+) figure 12. rear controls. 5 6 5. HIGH/LOw range control: Shifts the spin- dle speed range from high range, 0-2500 rpM to loW range, 0-1100 rpM. Note: DO NOT shift from HIGH to LOW while the lathe is running! 6. LEADscrEw fOrwArD/NEuTrAL/ rEvErsE Lever: Changes leadscrew...

Model g8688 (Mfg. 3/09+) -19- Changing jaws on the 3-jaw chuck is straight for-ward, but attention must be paid to the sequence in which the jaws are loaded into the chuck. To replace the jaws: 1. unplug thE lathE! 2. remove all of the jaws on the chuck by turn- ing the chuck key counterclockwise. 3...

Model g8688 (Mfg. 3/09+) -23- steady rest the steady rest serves as a support for long round shafts (l/d ratio of 3:1 or greater). the steady rest can be placed anywhere along the length of the workpiece. To install /use the steady rest: 1. place the steady rest on the lathe bedways so the triangula...

-24- Model g8688 (Mfg. 3/09+) the cross slide moves perpendicular to the longi-tudinal axis and features a scale on the handwheel that displays graduations of one thousandths of an inch (0.001"). To adjust the cross slide: 1. using the handwheel, back the cross slide away from your starting poin...

Model g8688 (Mfg. 3/09+) -25- carriage the longitudinal movement of the carriage (car-riage feed) on the Model g8688 can be controlled both manually and automatically. To move the carriage feed manually: 1. rotate the handwheel clockwise to move the carriage right and rotate the handwheel coun-tercl...

-26- Model g8688 (Mfg. 3/09+) the Model g8688 can be geared for a variety of different feed rates, so a chart is placed on the drive cover of the lathe that explain how to set up the gear combinations for threads per inch. the chart for metric thread pitches is included in the manual. See figure 27 ...

Model g8688 (Mfg. 3/09+) -27- for example if you wanted to cut a 1 ⁄ 4 " x 20 thread on a piece of round stock. 1. unplug thE lathE! 2. remove the gear cover. 3. loosen the adjuster to disengage the gears from each other. 4. remove the gears in place and replace with the 40, 65, & 55 tooth g...

-28- Model g8688 (Mfg. 3/09+) sEcTION 5: AccEssOrIEs aCCESSoriES G9256—6" Dial caliper G9257—8" Dial caliper G9258—12" Dial caliperthese traditional dial calipers are accurate to 0.001" and can measure outside surfaces, inside surfaces, and heights/depths. Features stainless steel, s...

-30- Model g8688 (Mfg. 3/09+) • Daily: Clean all machined surfaces, including chuck, and apply a thin film of iSo 68 gear oil or 10-30W synthetic motor oil. • Daily: put a few drops of iSo 68 gear oil or 10-30W synthetic motor oil on the bearing on each end of the leadscrew. you will need to remove ...

Model g8688 (Mfg. 3/09+) -31- sEcTION 7: sErvIcE Troubleshooting Motor & Electrical Symptom possible Cause possible Solution Machine does not start or a breaker trips. 1. Fuse has blown.2. Emergency stop push-button is engaged/ faulty. 3. plug/receptacle is at fault or wired incorrectly.4. Compu...

Model g8688 (Mfg. 3/09+) -35- 3. place the dead center in your tailstock. 4. attach a lathe dog to the bar stock and mount it between the centers (figure 40). 5. turn approximately 0.010" off of the diam- eter. Tailstock Alignment figure 39. Finished dead center. the tailstock on the Model g8688...

Model g8688 (Mfg. 3/09+) -37- Electrical components figure 43. g8688 Fuse location. Emergency Stop Switch Fuse rpM dial F/o/r toggle figure 44. g8688 Motor location. rear Motor Brush figure 45. g8688 Wiring diagram. RPM Dial F/O/R Spindle Toggle Emergency Stop Switch Motor Fuse Printed Circuit Board

-38- Model g8688 (Mfg. 3/09+) 54 55 121 56 57 50 58 59 52 51 59 63 62 64 75 75 71 70 79 21 85 84 83 65 66 68 67 52 86 83 87 88 89 21 20 19 69 82 81 80 78 96 98 98 67 107 108 20 109 110 111 112 113 87 83 18 9 63 62 61 60 22 45 46 47 48 52 53 49 44 43 42 41 17 16 10 15 11 12 14 38 37 36 35 6 8 26 25 2...

Model g8688 (Mfg. 3/09+) -39- parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 1 P8688001 BED WAY 52 PSB68M CAP SCREW M6-1 X 8 2 P8688002 3 JAW CHUCK 53 P8688053 COVER 3 P8688003 SPINDLE 54 PSB108M CAP SCREW M5-.8 X 45 4 PSS12M SET SCREW M6-1 x 25 55 P8688055 THREADS CUTTING CHART 6 PN01M HE...

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Model g8688 (Mfg. 3/09+) -45- 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 ...

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