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 TM 55-1905-223-24-3
Table 2-2. Troubleshooting-Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
d. Remove the test equipment.
STEP 5.
Check for defective turbocharger compressor impeller or turbine wheel as follows:
a.
Remove the intake and exhaust pipes from the turbocharger (para. 2-30).
b.
Visually inspect the turbocharger compressor impeller blades for damage.
c.
If damage is found, replace turbocharger (para. 2-30).
STEP 6.
Check for turbocharger bearings damage.
a.
Refer to PMCS Table 2-1, Item 27.
b.
Replace turbocharger (para. 2-30).
15. Low power or excessive smoke (low turbocharger boost pressure).
STEP 1.
Check for engine overload.
Reduce engine load.
STEP 2.
Check for incorrect turbocharger installed.
Install correct equipment (para. 2-26). Refer to TM 55-1905-223-24P.
STEP 3.
Check for dirty air filter element.
Replace or clean air filter element (para. 2-29).
STEP 4.
Check for intake or exhaust air leaks.
Secure loose or replace damaged piping.
STEP 5.
Check for excessive exhaust restriction.
Refer to Malfunction 14, Step 4.
STEP 6.
Check for intake air restriction.
Refer to Malfunction 14, Step 3.
STEP 7.
Check for defective turbocharger bearings.
a. Refer to PMCS Table 2-1, Item 27.
b. Replace turbocharger (para. 2-30).
STEP 8. Check for malfunction in fuel system.
Refer to Malfunction 25.
16. Turbocharger leaks engine oil or fuel.
STEP 1. Check for defective turbocharger turbine seal.
a. Check turbocharger for oil leaks.
b. Replace turbocharger (para. 2-30).
2-36
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