TM 10-3930-643-34 HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE. 12-19. Hydraulic Reservoir and Filter. (Sheet 7 of 11) CLEANING/INSPECTION 33. Purge and clean hydraulic reservoir (35). If welding is required, use steel. Purging and cleaning must be performed  according  to  purge  section of TB 43-0212. l TOXIC/FLAMMABLE 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. l COMPRESSED AIR HAZARD 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.). 34. Clean all other parts except plates (51 thru 54) with cleaning solvent P-D-680. Dry thoroughly with compressed air. Refer to paragraph 2-8. 35. Inspect hydraulic reservoir (35). If leaks are evident and welding is required,  refer  to  TM  9-237,  Welding Theory  and  Application. 36. Inspect all other parts. Refer to paragraph 2-9. Go to sheet 8 12-176

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