TM 5-4310-343-35
Trouble
Probable Cause
Remedy
Pumping oil through
Rings, cylinders,
See trouble, "Excessive
compressor.
plungers, or pistons
blow-by".
worn or scored or in-
correctly assembled or
poor fit of parts.
High oil throughout.
Excessive cam assembly
Replace worn component.
(keystone) or crank-
shaft Journal clear-
ance.
High oil pressure.
See trouble, "High oil
pressure".
Faulty picking.
Replace pecking.
Insufficient speed end
Lack of lubrication.
Check oil level.
overheating of compres-
Insufficient ambient
Operate unit under pre-
sor unit.
cooling air.
scribed conditions .
Broken fan spring.
Replace spring.
Broken oil pump shaft.
Replace shaft.
Inability of compres-
Basic compressor fail-
Remove motor from basic
sor unit to turn over
ure or motor failure.
compressor and check
or reach speed.
each for freedom of
movement.
4-7
