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TM    9-2815-202-34 (4) (5) (b) (c) Wash  passages  by  flushing  with  dry  cleaning  solvent. Dry  passages  by  blowing  them  out  with  compressed  air. CAUTION Do not allow cleaning solvent to be in contact with seals, cables, and flexible hoses. Cleaning  solvent  will  cause  leather,  rubber,  and  synthetic  materials  to  dry  out,  rot,  and become  stiff. Oil  Seals,  Cables,  and  Flexible  Hoses. Clean oil seals, cables, and flexible hoses with soap, water, and a stiff brush. Ball  Bearings. (a) (b) (c) (d) After  removing  surface  oil  and  gum  deposits,  place  bearings  in  hot  oil  (140oF)  to  loosen congealed oil and grease. Wipe bearing dry; do not use compressed air. After cleaning, coat bearings with a light film of oil and wrap in paper until parts are inspected  and  assembled. See  TM  9-214  for  information  on  care  and  maintenance  of  bearings. b.   Inspection (1) (2) General. Procedures for inspection will be the same for a great percentage of the parts and components.  To  avoid  repetition  of  instructions,  the  general  procedures  for  inspection  are detailed in paragraphs below. The engines are precision built and repair standards found in App G for the component parts have been fixed at extremely close tolerances. Be sure to use prescribed  inspection  equipment  for  inspecting  component  parts  having  extremely  close tolerances  where  cracks  and  other  damage  cannot  be  spotted  visually.  Replace  parts  or components  that  fail  to  meet  inspection  criteria. Castings. (a) (b) (c) Inspect  all  ferrous  and  nonferrous  castings  for  cracks  using  a  magnifying  glass  and  a strong light. Check  particularly,  areas  adjacent  to  studs,  pipe  plugs,  threaded  inserts  and  in  sharp corners  and  fillets. Inspect machined surfaces of castings for nicks, burrs or raised metal. 3-3


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