TM 10-3930-638-24&P    4 - 4 .     T R A N S M I S S I O N     M A I N T E N A N C E     ( c o n t) d. Gear and Clutch Group (cont). STEP LOCATION ITEM ACTION REMARKS CLEANING WARNING Dry cleaning solvent (P-D-680), used to clean parts is toxic and flammable.  Wear  protective  goggles  and  gloves  and  use  only  in  a well ventilated area. Avoid contact with skin, eyes, and clothes and don’t breathe vapors. Do not use near open flame or exces- sive heat and don’t smoke when using it. Failure to do so could cause serious injury. If you become dizzy while using cleaning solvent, get fresh air immediately, and get medical attention. If contact with skin or clothes is made, flush with large amounts of water. If contact with eyes is made, wash eyes with water immedi- ately,  and  obtain  medical  aid  immediately. 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. 17 Bearings (4, 8, 13,21, Clean Use  cleaning  solvent  P-D-680.  Immerse 25, 34, 37, 39, 4], bearings in cleaning solvent and move 43, and 50) slowly up and down. Remove bearings. Strike larger side of cone against block of wood  to  dislodge  solidified  particles  of lubricant.  Immerse  again  in  cleaning solvent.  Repeat  process  until  bearings  are thoroughly clean. Dry using moisture- free  compressed  air,  Direct  air  stream across bearing. Do not spin bearings when drying. Rotate bearings slowly by hand to facilitate drying NOTE If low clutch assembly (17), third clutch assembly (19), and for- ward clutch assembly (48) have been repaired don’t perform following  step. CAUTION Don’t immerse low clutch assembly (17), third clutch assembly (19), and forward clutch assembly (48) in cleaning solvent. 4-179