DeVillbiss Air Power Company SP-100-F Troubleshooting Guide download pdf (Page 24)

TROUBLESHOOTING CHART (Continued)

CAUSE

Restrictedair intake.

PROBLEM

CompressorOverheating (Cent)

Improperlevel and/orgrade of oil

used.

Excessive BeltWear

Reduced Air Delivery

Water inCrankcase; oil appears

milky in color.

Excessive Water in AirReceiver

Tank.

Damaged valves(intakeand/or

exhaust).

Loose belt.

Pulley misalignment.

Loose pulley.

Compressor valvesleaking,

stickingorcarboned up.

Worn rings.

Head gasket leaking.

Restrictedair intake.

Loose drivebelt.

Unit notreachingproperoperat-

ingtemperature becausethe

compressorrunsfrequently and

is oversizedfor the air require-

ment.

Humid operating conditions.

Condensation inthe air receiver.

CORRECTION

Remove and clean orreplace air

filter.

Check for proper oillevelsand

recommended oilusage.

Repairor replace as necessary.

Adjust belt tension.

Align pulley to within 1/16 inch of

the flywheel.

Check forworn key or pulley

bore. Also check for bent engine

shaft. Replace or repairas

necessary.

Tighten pulley set screw orbolt.

Replace.

Replace.

Tighten or replace gasket.

Clean orreplace.

Tighten butdon'tovertighten.

Consult withfactory or dealer.

Relocate compressoroutfit.

Change oilfrequently. Avoid

cylinderrustingand ringwear.

This is a normal resultof com-

pressing air and notdue to faulty

equipment.This conditioncanbe

correctedby drainingthe air

receiverdaily.

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