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) f. Reverse and Second Clutch Assembly (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. 3 Bearings (4, 8, 10) Clean Use  cleaning  solvent  P-D-680.  Immerse bearings in cleaning solvent and move 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 this process until bear- ings are thoroughly clean. Dry bearings with moisture-free compressed air. Direct air stream across bearing. Do not spin the bearings when drying. Rotate bearings slowly by hand to facilitate drying. All other parts Clean 4 Use  cleaning  solvent  P-D-680.  Immerse parts in cleaning solvent and move slowly up  and  down  until  parts  are  thoroughly cleaned.  Dry  parts  thoroughly  using moisture-free  compressed  air  or  clean cloths 4-199