DeWalt D55180T Instruction Manual page 21

5134371,DW55170,ElecComp 2/10/03
C o d e Possible Cause
2 0 Defective motor, motor capacitor or pressure switch.
2 1 Air compressor is not large enough for air required
2 2 Possible defective safety/relief valve
2 3 Excessive air tank pressure
2 4 Defective gaskets
2 5 Fittings not tight enough
2 6 Defective or rusted air tank
2 7 Pressure regulator knob not turned to high enough pressure
2 8 Hose or hose connections are to small or long.
2 9 Possible defective (reed) valve.
3 0 Air compressor on unlevel surface.
3 1 Crankcase overfilled with oil.
3 2 Plugged oil crankcase vent.
3 3 Water in oil due to condensation.
3 4 Condensation in air tank caused by high level of atmospheric
h u m i d i t y.
3 5 Unit located in damp or humid location.
3 6 Tanks have air pressure
2:38 PM Page 16
Possible Solution
Contact D WA LT Customer Service at 1-800-4DEWA LT.
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Check the accessory air requirement. If it is higher than the CFM
or pressure supply of the air compressor, you need a larger air
c o m p r e s s o r.
Operate safety relief valve manually by pulling on test ring. If it
still leaks, replace.
Adjust pilot valve. If problem still exists replace pilot valve.
Replace and torque head bolts to 6 - 7 ft lb
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
Air tank must be replaced. Do not attempt to repair air tank
Adjust pressure regulator knob to proper setting or replace.
or defective pressure regulator.
Replace with larger hose or connectors.
Remove pump head and inspect valve plate and (reed) valve.
Clear or replace valves as required.
Do not incline the air compressor more than 10˚ in any direction
while running.
Drain oil. Refill to proper level with D
C l e a n
Drain oil. Refill to proper level with D
Drain air tank after every use. Drain air tank more often in humid
weather and use an air line filter.
Relocate unit
Bleed tanks fully
16
WA LT synthetic oil.
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WA LT synthetic oil.
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