TM  10-3930-638-24&P 3-31.   MAST   ASSEMBLY   MAINTENANCE   (cont) b. Side Shifter Frame and Rotation Bearing (cont). (cont) STEP LOCATION ITEM ACTION REMARKS REMOVAL  (cont) WARNING 6 Be sure sling hoist is securely fastened to carriage bearing plate before performing following step. Failure to do so could cause serious bodily injury. CAUTION Roller bearings (15) and shims (16) may fall off carriage bearing plate in following step. h. Carriage bearing Remove Use sling hoist plate  (14) i.  Two  roller  bearings Remove (15) j. Shims(16) Remove k. Two cap screws (17) Remove l.  Two  roller  bearings Remove (18) m. Shims (19) Remove n. Two cam rollers (20) Remove 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. 7 All parts Clean Use cleaning solvent P-D-680. Dry thor- oughly 3-254