Estwing E10GCOMP Manuel page 8

Troubleshooting (Continued)
Problems
Insufficient Output, Low Discharge
Pressure
Engine Stalls
Water in Crankcase, Oil Gets Dirty,
Rusty Valves or Cylinders
Excessive Vibration
Possible Cause(s)
Clogged inlet filter
Leaks in air lines, air valves,
fittings, etc.
Drain valve left open
Defective pressure gauge
Leaking head gasket
Dirty or plugged inter cooler
tubes
Unloader pilot adjusted too low,
or defective
Worn or defective compressor
valves
Worn piston, worn out rings
Restrictive check valve
Compressor incorrectly sized
Faulty unloader/check valve
Valve incorrectly installed
Cycle too short; compressor
does not operate long enough
to vaporize condensed
moisture during compression
Compressor operating outside in
cold conditions or inlet filter not
protected against weather
System pressure leaking back
through check valve when
compressor is stopped
Wrong oil being used
Loose compressor, engine, or
engine guard
Compressor not level
Leg bolts over tightened to floor
08
Corrective Action
Clean or replace as necessary
Replace worn components
as necessary
Close drain valve
Replace pressure gauge
Replace head gasket
Remove and clean inter cooler
tubes
Make necessary adjustments
Replace valves
Replace worn parts
Clean check valve and replace
if necessary
Upgrade to larger compressor
Replace unloader check valve
Install valve correctly
Allow for longer operating cycle
Provide adequate protection
against extreme weather
conditions
Check and replace check valve
if necessary
Drain and replace with proper oil
Tighten components
Level compressor
Loosen leg bolts
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