TM 5-3810-300-24 & P2
TROUBLESHOOTING (continued)
Noisy Operation :
Loose drive pulley.
Excessive carbon in cylinder head or discharge line.
Worn or burned out bearings.
Excessive wear.
Compressor Passes Excessive Oil:
Excessive wear.
Dirty air strainer.
Excessive oil pressure.
Oil return line or passage to engine compressor crankcase flooded.
Oil seal ring in end cover excessively worn.
Back pressure from engine crankcase.
Piston rings improperly installed.
Compressor Does Not Unload:
Defective unloading piston grommet.
Unloading cavity plugged with carbon.
Unloading mechanism binding or stuck.
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