TM  10-3930-638-24&P 2-56.   HYDRAULIC   LIFT   SYSTEM   MAINTENANCE   (cont) d. Lift Chains and Pulleys (cont). STEP LOCATION ITEM ACTION REMARKS REMOVAL 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 immed- iately.  and  obtain  medical  aid  immediately. 1 Mast assembly, a. Four hose fittings (1) Tag, clean, loosen, Use cleaning solvent P-D-680 inner  mast disconnect  and cap b. Four tension tubes (2) Install  1/4-20  nuts  Hold  tension  tubes  in  position CHANGE  2  2-403