DeVilbiss Air Power Company FAC1025, Owner'S Manual

Page: 10 / 16

10 — ENG
Defective air tank.
CORRECTION
Excessive tank pressure -
safety valve pops off.
Pressure switch does not shut off mo-
tor when compressor reaches “cut-
out” pressure. Move the pressure switch lever to the “OFF” posi-
tion. If the outfit doesn’t shut off, unplug. If the
electrical contacts are welded together, replace
the pressure switch.
Pressure '"cut-out" too high. Return the outfit to an authorized dealer to check
and adjust, or replace switch.
PROBLEM
Air leaks at fittings. Tube fittings are not tight enough. Tighten fittings where air can be heard escaping.
Check fittings with soapy water solution.
DO NOT
OVER-TIGHTEN.
Air leaks at or inside check
valve. Defective or dirty check valve. A defective check valve results in a constant air leak
at the pressure release valve when there is pressure
in the tank and the compressor is shut off. Remove
and clean or replace check valve.
DO NOT OVER-
TIGHTEN.
Defective pressure release valve.
Defective check valve.
Air leaks at pressure switch
release valve.
Remove and replace the release valve.
Air leaks in air tank or at air tank
welds.
DO NOT DRILL INTO, WELD OR OTHERWISE
MODIFY AIR TANK OR IT WILL WEAKEN.
THE TANK CAN RUPTURE OR EXPLODE.
TROUBLESHOOTING GUIDE
PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED
AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS,
UNPLUG THE COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.
CAUSE
Pressure reading on the regu-
lated pressure gauge drops
when an accessory is used.
It is normal for “some” pressure drop to
occur.
If there is an excessive amount of pressure drop
when the accessory is used, adjust the regulator
following the instructions on page 7.
NOTE
Adjust the regulated pressure under
flow conditions (while accessory is be-
ing used).
Air tank must be replaced. Do not repair the leak.
A defective check valve results in a constant air leak
at the pressure release valve when there is pressure
in the tank and the compressor is shut off. Remove
and clean or replace check valve.
DO NOT OVER-
TIGHTEN.