TM  10-3930-638-24&P 4-3.   FUEL   SYSTEM   MAINTENANCE   (cont) a. Fuel Injector (cont). STEP LOCATION ITEM ACTION REMARKS DISASSEMBLY (cont) 15 Lift  adjusting Remove screw (9) CLEANING  AND  INSPECTION WARNING Dry cleaning solvent (P-D-680), used to clean parts is toxic and flammable. Wear protective goggles and golves 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 17 18 All parts Place in Use cleaning solvent P-D-680 solvent Injector body (11) Clean Use brass wire brush to clean tip of body and exterior of body Injector  body Clean Use cleaning wires P/N 66-0036 in 0.011 in (11) spray orifices diameter, Secure wire in pin vise with en of wire protruding 1/32 inch. A longer length of wire will bottom on opposite wall or sac hole and tends to easily break Use a stone to remove cutting burrs from end of wire. If a small flat is stoned on o side  of  wire,  it  will  facilitate  cutting  carbon from orifice. Insert cleaning wire and ro- tate it until it is free. Flush body and in- spect tip. If any orifices are chipped at edges or eroded to an extent that spray pattern is affected, replace fuel injector 4-82