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b. Cleaning TM 9-2815-237-34 2-40. FAN DRIVE REPAIR (Cont’d) WARNING l Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use only with effective chip guarding and personal protective  equipment  (goggles/shield,  gloves,  etc.). l Do not use compressed air to spin bearings. Spinning a dry bearing with compressed air may cause injury to personnel or damage  to  equipment. 1. Clean shaft assembly (7) and housing (2) with compressed air and wipe with clean cloth. 2.  Clean  all  other  parts  in  accordance  with  para.  2-9. c.  Inspection NOTE For  general  inspection  instructions,  refer  to  para.  2-10. 1.  Inspect  cylinder  assembly  (9)  for  damage.  Replace  if  damaged. 2. Inspect dust seal (10) for cracks in the seal or pieces missing from it. Replace dust seal (10) if cracked  or  pieces  missing  from  it.  Ensure  lip  of  seal  is  facing  out. 3. Inspect roller bearings (3) and (4) in housing assembly (2) for damage. Replace fan drive assembly if  damaged. 4. Inspect lip seal (5) in housing assembly (2) for damage. Replace fan drive assembly if damaged. 5. Inspect studs (1) on housing assembly (2) for stripped threads. Replace if damaged. 6. Inspect seal surface (6) on shaft assembly (7) for damage. Replace fan drive assembly if damaged. 7. Inspect bearing (8) on shaft assembly (7) for damage. Replace fan drive assembly if damaged. 2-150


 


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