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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 LUBRICATING   SYSTEM 6. EXCESSIVE   ENGINE   OIL   CONSUMPTION Step 1. Check oil lines and connections for leaks. Step 2. Clean and inspect crankcase breathers (Refer to Paragraphs 4-11, 4-15, 6-16, or 7-14  for  appropriate  engine  model). Step 3. Check blower oil seals for leaks. a. Remove air inlet housing. When Inspecting a fingers,  equipment Run engine at iow WARNING biower  on  a  engine  with  the  engine  running,  keep and ciothing away from moving parts of the biower. speeds  oniy. 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  4.  Check  for  blue  smoke.  Inspect  exhaust  manifolds  and  stacks  for  wetness  or  oil discharge. NOTE If wetness or oil discharge is present in exhaust manifolds, it is usually an indication of worn valve guides. Low  compression  readings  will  indicate  worn  out  cylinders. Step 5. Check vehicle for leaks in air cleaner system which would allow contaminated air to enter  engine.  Perform  cylinder  compression  test  (Refer  to  Para  8-14). Step 6. Check turbocharger oil drain and supply lines for leakage. END  OF  TEST 2-10


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