TM  10-3930-638-24&P 4-3.   FUEL   SYSTEM   MAINTENANCE   (cont) b. Fuel Injection Pump (cont). If necessary If necessary STEP LOCATION ITEM ACTION REMARKS DISASSEMBLY  (cont) CAUTION (cont) In following step, don’t handle rotor shank. r. Rotor (123) Remove 13 Housing a. Four screws (124) Remove (133) b. Two timing Remove line covers (125) c. Two timing Remove line  cover and discard gaskets  (126) d. Two screws Remove (127) e.  Nameplate  (128) Remove 14 Hydraulic head (81) NOTE Don’t  perform  following  steps  unless  vent  wire  and  retainer  are damaged. a. Plug screw (129) Remove If  damaged b. Two plug screws Remove If  damaged (130) c. Vent wire Remove If  damaged.  Grasp  hydraulic  head  in  your retainer (131) hand and shake vent retainer into other hand d. Vent wire (1 32) Remove Use tool P/N 18264 15 Housing Two bushings (134) Remove  only Use proper size sleeve (133) if  damaged 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. 16 All parts Clean Use  cleaning  solvent  P-D-680 4-105