Craftsman 919.167460, Operator'S Manual

Page: 16 / 36

16 - ENG D24072
PROBLEM
CAUSE
CORRECTION
Possible defect in safety valve. Operate safety valve manually by
pulling on ring. If valve still leaks,
it should be replaced.
Defective check valve. Remove and clean, or replace.
Knocking Noise.
Compressor is not supplying
enough air to operate accessories. Prolonged excessive use of air.
Compressor is not large enough
for air requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Restricted air intake filter
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.
Clean or replace air intake filter.
Do not operate the air compressor
with the filter removed. Refer to
the “Air Filter” paragraph in the
“Maintenance “ section.
Damaged regulator Have checked by a Trained
Service Technician. Regulator knob has continuous air
leak.
Regulator will not shut off air
outlet.
Damaged regulator Have checked by a Trained
Service Technician.