TM9-2815-202-34 4-40.  FUEL  INJECTOR  ASSEMBLY  REPAIR  (Cont) b.   Cleaning l Dry  cleaning goggles and contact with WARNING solvent  P-D-680  is  toxic  and  flammable. gloves  and  use  only  in  a  well-ventilated Wear protective area. Avoid skin, eyes, and clothes and don’t breathe vapors. Do not use near  open  flame  or  excessive  heat.  The  flash  point  is  100^oF-138°F (38^o-50^oC).  If  you  become  dizzy  while  using  cleaning  solvent,  get  fresh air immediately and get medical aid. If contact with eyes is made, wash your  eyes  with  water  and  get  medical  aid  immediately. l Compressed  air used  for  cleaning  purposes  will  not  exceed  30  psi.  Use only  with  effective  chip  guarding  and  personal  protective  equipment (goggles/shield,   gloves,   etc). Wash all parts with cleaning solvent and dry with clean, filtered compressed air. Use lint free towels to wipe off parts. Clean out passages, drilled holes and slots in all injector parts. (1) Injector   spray   tip (a) Soak spray tip in cleaning solvent to  loosen  carbon. CAUTION Do not contact needle valve seat with  carbon  removing  tool  during spray could (b) (c) tip insertion or-valve seat be  damaged. Insert carbon removing tool (26) and  clean. Clean spray tip orifices with pin vise (27) and cleaning wire (28). CAUTION Do not buff spray tip area excessively. Do not use a steel wire buffing wheel or spray tip holes may be distorted. (d) Clean exterior of spray tip with brass  wire  buffing  wheel. 4-224