DeVilbiss Air Power Company Ex-Cell E7540 Manual De Operación página 23

PROBLEM
Pressure reading
on the regulated
pressure gauge
(if equipped)
drops when an
accessory is
used.
Air leak from
safety valve.
Compressor is
not supplying
enough air to
operate acces-
sories.
Restricted air
intake.
CAUSE
It is normal for "some"
pressure drop to occur.
Possible defect in safety
valve.
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.
Loose belt.
Dirty air filter.
If there is an excessive amount
of pressure drop when the
accessory is used, adjust the
regulator as instructed in the
Operation section.
NOTE: Adjust the regulated
pressure under flow condi-
tions (while accessory is being
used).
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
Decrease amount of air usage.
Check the accessory air re-
quirement. 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 re-
moved. Refer to the "Air Filter"
paragraph in the Maintenance
section.
Check belt tension, see Adjust-
ing Belt Tension in the Mainte-
nance section.
Clean or replace. See Air Filter
paragraph in the Maintenance
section.
23-ENG
CORRECTION
A18791