TM  10-3930-638-24&P 4-4.    TRANSMISSION    MAINTENANCE    (cont) a. Torque Converter Group (cont). Gears and shafts STEP LOCATION ITEM ACTION REMARKS CLEANING  (cont) 15 Converter housing (51 ) Clean Use  clean  cloths  moistened  with  cleaning solvent P-D-680. Dry with moisture free compressed air 16 Reverse and second Clean Use  clean  cloths  moistened  with  cleaning clutch assembly (53) solvent P-D-680. Dry with moisture free compressed air INSPECTION 17 Bearings Inspect Inspect for wear, chipping, or nicks. Don’t replace a bearing cone or cup individually without replacing mating cup or cone at same time. After inspection, dip bearings in clean, light oil and wrap in clean lint- less cloth or paper for protection until installed. 18 Inspect Inspect  gear  teeth for wear, pitting,  chip- ping, nicks, cracks or scores; replace if these defects are observed. If gear teeth show spots where case hardening is worn through or cracked, replace gear. Remove small nicks with suitable hone. Inspect shafts for bent, sprung, or twisted con- dition;  replace  if  necessary 19 O-rings, metal sealing Discard Use new parts rings,  gaskets,  retain- ing rings, and locat- ing  rings 20 Remaining parts Inspect Check for wear, cracks, bent condition, or distortion. If any of these conditions are noted, replace part REASSEMBLY NOTE Lubricate all seals and O-rings with automatic transmission fluid (refer to current lubrication order) prior to reassembly. 4-143