TM  10-3930-643-34 GENERAL  SUPPORT  ENGINE,  FUEL,  EXHAUST  AND  COOLING  MAINTENANCE. 13-4. Crankshaft. (Sheet 5 of 9) CLEANING/INSPECTION Dry  cleaning  solvent  P-D-680,  used for cleaning parts, is toxic and flammable.  Use  only  in  well ventilated areas. Wear protective goggles and gloves. Do not smoke or allow open flames or sparks in areas where cleaning solvent is used or stored. Avoid contact with eyes, skin or clothing. If contact with eyes is made, flush with cold water and seek medical attention  immediately. If contact with skin or clothing is made, flush with cold water. If you become  dizzy  while  using  cleaning solvent, get fresh air immediately. 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.). 11. Wash  crankshaft  (8)  with cleaning solvent P-D-680. Use nylon brush to remove  deposits and sludge from internal oil passages. 12. Clean all other parts with cleaning solvent  P-D-680. Dry  thoroughly  with compressed air. Refer to paragraph 2-8. Go to sheet 6 13-29

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