MAINTENANCE OF THE SUBDRIVE ASSEMBLY - cont

MAINTENANCE OF THE SUBDRIVE ASSEMBLY - cont - TM-5-3820-256-24-1_86

MAINTENANCE OF THE SUBDRIVE ASSEMBLY - cont - TM-5-3820-256-24-1_88

TM-5-3820-256-24-1 Drilling System Manual
Page Navigation
66

c. Examine the clutch FACINGS for being scored, burned or cracked; inspect driving TEETH for wear or damage and measure thickness of the facings. Replace any clutch facing that is badly scarred, burned, or has driving teeth which are worn and/or damaged, or if the facing thickness is worn to under 5/16 of an inch. d. Inspect the FRICTION SURFACES on the clutch body and pressure plate for being flat, smooth, and free from cracks and heat checks. The drive BOSSES and KEYWAY of the clutch body, and the adjusting ring THREADS and boss NOTCHES of the pressure plate should be examined for wear, and if worn excessively, should be replaced. e. Inspect the INNER FACE and THREADS of the adjusting ring for wear or damage. If worn excessively, replace adjusting ring. f. Examine all lever and link pins and pin holes in links, release levers, release sleeve and pressure plate for wear. If pins and pin holes in parts are worn excessively, parts must be replaced. g. Inspect the FINGERS of the adjusting ring lock for wear. Replace lock if fingers are worn excessively or have been damaged. Lock must have sufficient tension to hold adjusting ring from turning when clutch is operating. h. Examine the WEARING SURFACE of release sleeve collar and mating surface on release sleeve. If parts show excessive wear, they must be replaced. i. Inspect the surface of the clutch release yoke fingers and mating TRUNNIONS on the release sleeve collar for wear. If parts are worn excessively, they must be replaced. j. Examine threads, keyways, and pilot bearing surface of drive shaft. k. Check the pressure plate separator springs for being broken or weak. Approximate spring pressure is 15 to 20 lbs. with spring compressed to 13/16 of an inch. 4-6.2.4 Assembly. NOTE Use steps a. through n. to assemble the clutch assembly, then the remaining steps to assemble the power take-off assembly. a. Place the clutch body (H1) on workbench with hub end (release lever bosses) of pressure plate up. Place clutch pressure plate separator springs (H36) in holes provided in plate next to release lever bosses. b. Place the pressure plate (H3) on top of the clutch body (smooth face down) with notches in pressure plate in line with the release lever bosses of the clutch body, then lower pressure plate down on the three pressure plate separator springs (H36). 4-56

Privacy Statement
Press Release
Contact