14
C o d e Probable Cause
Probable Solution
2 0
Defective gaskets
Replace and torque head bolts to 6 - 7 ft lb
2 1
Fittings not tight enough
Warning : drain air before tightening; tighten fittings where air can
not be heard escaping.Check joint with soap solution.Do not
o v e r t i g h t e n
2 2
Defective or rusted air tank
Air tank must be replaced. Do not attempt to repair air tank
2 3
Pressure regulator knob not turned to high enough pressure
Adjust pressure regulator knob to proper setting or replace.
or defective pressure regulator.
2 4
Hose or hose connections are to small or long.
Replace with larger hose or connectors.
2 5
Possible defective (reed) valve.
Remove pump head and inspect valve plate and (reed) valve. Clear or
replace valves as required.
2 6
Air compressor on unlevel surface.
Do not incline the air compressor more than 10˚ in any direction while
r u n n i n g .
2 7
Crankcase overfilled with oil.
Drain oil. Refill to proper level with D
E
WA LT synthetic oil.
2 8
Plugged crankcase vent.
C l e a n .
2 9
Water in oil due to condensation.
Drain oil. Refill to proper level with D
E
WA LT synthetic oil.
3 0
Condensation in air tank caused by high level of
Drain air tank after every use.
atmospheric humidity.
Drain air tank more often in humid weather and use an air line filter.
3 1
Unit located in damp or humid location.
Relocate unit
3 2
Engine oil too low. Low oil shut off is on.
Add engine oil.
3 3
Manual lock on pilot valve is in the loaded position.
Move manual lock into an in-line position.
3 4
Engine idle speed too low
Increase idle speed
3 5
Vee belt loose
Adjust vee belt
3 6
Engine problem
See “Taking care of unexpected problems” in engine owners manual.
Gas Manual 10-5-01 2/10/03 2:31 PM Page 14
