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Westward Operating Instructions and Parts Manual
Symptom (s)
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is
used.
Compressor is not
supplying enough
air to operate
accessories.
Regulator knob
has continuous
air leak.
Regulator will
not shut off air
outlet.
Portable Air Compressor
Possible Causes (s)
1.
It is normal for "some"
pressure drop to occur.
1.
Prolonged excessive use
of air.
2.
Compressor is not large
enough for air
requirement.
3.
Hole in hose.
4.
Check valve restricted.
5.
Air leaks.
1.
Damaged regulator
1.
Damaged regulator
Corrective Actions (s)
1.
NOTE: Adjust the regulated
pressure under flow
conditions (while accessory is
being used).
1.
2.
3.
4.
5.
1.
1.
17- ENG
Model 4YD76B
If there is an excessive
amount of pressure drop
when the accessory is
used, adjust the regulator
following the instructions
in the "Description of
Operation" paragraph in
the "Operation Section.
Decrease amount of air
usage.
Check the accessory air
requirement. If it is
higher than the SCFM or
pressure supplied by
your air compressor, you
need a larger
compressor.
Check and replace if
required.
Remove and clean, or
replace.
Tighten fittings.
Replace
Replace
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