Troubleshooting guide

TROUBLESHOOTING CHART (Continued)
PROBLEM CAUSE
Knocking(cont'd) Flywheelloose.
ExcessiveOil Consumption
CompressorOverheating
Loosebelt.
Restrictedair intake.
Compressor overworked.
Poorqualityor automotive
multiviscosityoilused.
Excessiveengineorcompressor
shaftend play.
Compressor overworked.
Check valve restricted.
Dirtycompressor.
Highambient temperature.
Worn orcarbonizedvalves.
Compressortoo closeto wall.
Air leaks in system.
Under sized unit for air require-
ment.
Unloader notoperating.
Remote air intake pipe to small
or restricted.
Insufficient "OFF" time. Com-
pressoris runningalmost
continuously.
CORRECTION
Makesureflywheelistightbytight-
ening screw.Torquescrewto
20 +5 -0 foot-pounds.
Tightenbelt.
Replace.
Reduce air consumptionor add
additionalair compressortotake
upload.
Drainpump and replacewith new
oil.
Checkpulleyand/orflywheel forlat-
eral movements. Contact engine
manufacturerfor repair,or DeVil-
bissif a compressor problem ex-
ists.
Reduceairconsumption oradd ad-
ditionalair compressortotake up
load.
Clean.
Clean.
Use remote air intake.
Replace.
Relocate.
Checkforsourceor leaksandcor-
rect.
Replace with a larger unit,
Replace.
Replaceremoteairintakepipping.
Compressor should not exceed
50% runtime,whichismaximum
30 min/hr. Check for source of
leaksand correct,or replacewith
largercompressor,
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