Fig. 16. Checking Pinion Clearance on Motors with the Intermediate Duty Clutch

Fig. 15. Pinion Drive Clearance Check Hookup

Fig. 17. Checking Pinion Clearance on Motors with the heavy Duty Sprag Clutch

TM-5-3820-256-24-4 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
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ENGINE DIVISION SERVICE MANUAL ELECTRICAL Fig. 16. Checking Pinion Clearance on Motors with the Intermediate Duty Clutch 4. Push the pinion back towards the commutator end to eliminate any overtravel. Measure the distance between the pinion stop and pinion. The clearance should be: a. Intermediate Duty Clutch -- .010 to .140 inch, Fig. 16. b. Heavy Duty Clutch -- 23/64 inch, Fig. 16 and Fig. 17. c. Motors with Spline Drive -- .010 to .070 inch between spline and retainer. 5. Clearance is adjusted by removing plug and gasket on rear housing and turning the adjustment nut, Fig. 17 and Fig. 18. CGES-230 - Page 17

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