Aerfast MA1220, Operator'S Manual

Page: 15 / 96

13
TROUBLESHOOTING
Symptom 6: Air leaks from safety relief valve
PROBABLE CAUSE
Possible defective safety relief valve.
Excessive air tank pressure.
REMEDY
Operate safety relief valve manually by pulling on
ring.
If it still leaks, it should be replaced.
Defective motor/pressure switch. Replace.
Symptom 7: Air leaks at fi ttings
PROBABLE CAUSE
Fittings are not tight enough.
REMEDY
Tighten
fi ttings where air can be heard
escaping. Check fi ttings with soapy water
solution. Do not overtighten.
Symptom 8: Air leak in air tank
PROBABLE CAUSE
Defective or rusted air tank.
REMEDY
Remove, clean or replace.
Symptom 10: Air compressor not making enough air
PROBABLE CAUSE
Restricted air intake fi lter.
Defective (reed) valve.
REMEDY
Clean.
Drain air tank and measure pump up time.
Compare tospeci
fi cations. If lower, remove pump
head and inspect valve plate, clean or replace.
Symptom 9: Insu ffi cient pressure at air tool or accessory
PROBABLE CAUSE
Pressure regulator knob not turned to high enough
pressure or defective pressure regulator.
Restricted air intake fi lter.
Air leaks.
Air compressor is not large enough for air
requirement.
REMEDY
Adjust pressure regulator knob to proper setting or
replace.
Clean.
Check for leaks and repair.
Check the accessory air requirement. If it is higher
thanthe CFM or pressure supply of the air
compressor, you need a larger air compressor.
Symptom 11: Moisture in discharge air
PROBABLE CAUSE
Condensation in air tank caused by high level of
atmospheric humidity or air compressor is
not run long enough.
REMEDY
Drain air tank after every use. Drain air tank more
often in humid weather and use an air line
fi lter.
Please dispose of the compressor in the environment as waste. The compressor must be
collected as electrical and electronic equipment separately.
TROUBLESHOOTING
RECYCLING
GB