TM  10-3930-638-24&P 4-4.   TRANSMISSION   MAINTENANCE   (cont) c. Transmission Rear Cover (cont). STEP LOCATION ITEM ACTION REMARKS CLEANING WARNING Exercise care when using alkali cleaners to avoid coming in contact with cleaner or breathing vapors to prevent skin rashes and bodily harm. Wear a rubber apron to prevent clothes from coming in contact with cleaner and use cleaner in a well ventilated area. If alkali cleaner is splashed on clothes or skin, flood area with large amounts of water and get immediate medical attention. WARNING Wear  safety  glasses  when  drying  parts  with  compressed  air.  Fail- ure to do so could cause serious injury to eyes and possible blind- ness. If you hurt your eyes or if a foreign object is blown into your eyes, seek medical attention immediately. 29 All parts Clean Clean interior and exterior of parts in hot solution tank with a mild alkali solution. Allow parts to remain in solution long enough to be cleaned and heated. Thor- oughly rinse parts with clean water to remove all traces of alkali. Dry parts thoroughly  immediately  using  moisture free compressed air or clean cloths INSPECTION 30 Rear cover (29) Studs  (31,  32,33, Inspect Check for damaged threads and bent con- and 34) dition. Repair damaged threads by chas- ing with proper size die; replace bent studs 31 Rear cover (29), bear- Inspect Check that all traces of gasket (30) is re- ing caps (3, 9, and 13), moved from mating surface of rear cover. and high and low shift Check that mating surfaces and bores are rail support (23) free from nicks or burrs and cracks are not evident. Remove burrs with a soft hone; if nicks or cracks are observed, re- place part 32 Bearing to flange Inspect Replace if surfaces worn or deformed spacer (16) 33 Mesh lock ball (19) Inspect Replace if deformed or damaged Change  1 4-165