TM  10-3930-638-24&P 4-3.   FUEL   SYSTEM   MAINTENANCE   (cont) b. Fuel Injection Pump (cont). STEP LOCATION INSPECTION  (cont) 18 cont) ITEM EXAMINE FOR SPECIFICALLY INSPECT 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. e.  Pumping Hold  rotor  under  clean  oil  and plungers (122) insert plungers into their bore. With your thumb and forefinger  over  shoe  slots, tilt from side to side several times to determine complete freedom of movement. Re- versing or interchanging ini- tial positions may be neces- sary as these are matched parts.  If  plungers  are  sticking, but  not  visibly  damaged,  clean both  plungers  and  bore  with a soft brush and cleaning sol- vent  P-D-680 4-108