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TM  9-2815-202-34 2-5. MALFUNCTION,  TEST  OR  INSPECTION,  AND  CORRECTIVE  ACTION PROCEDURES   (Cont) MALFUNCTION TEST OR INSPECTION CORRECTIVE  ACTION 8.  BLUE  EXHAUST  SMOKE l l Step 1. Check blower oil seals for leaks. a. Remove air inlet housing. WARNING When  Inspecting  a  blower  on  a  engine  with  engine  running,  keep fingers, equipment and clothing away from moving parts of blower. engine  at  low  speeds  only. Run Protective  fan  screens  must  be  installed  prior  to  doing  maintenance  In the  engine  compartment  when  engine  Is  running  or  when  engine  is  in ground  hop  mode.  Contact  with  rotating  fan  can  cause  injury  (reference FM   21-11). b. Operate engine, fluctuating between 650-1200 RPM and inspect blower end plates for evidence of oil leakage past seals. c.  If  leakage  is  detected,  replace  blower  (Refer  to  Para  4-18). Step 2. Check turbocharger for defective oil seals. a. Remove air intake hose and tube and exhaust pipe. b. Check for evidence of oil on compressor or turbine. c. If oil is present, replace turbocharger assembly. d. Install air intake hose and tube and exhaust pipe. Step  3.  Perform  oil  analysis  for  coolant  in  engine  oil.  (Refer  to  DA  PAM  738-750) END  OF  TEST 2-12


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