DeVilbiss D22073 - Manual (Page 10)

10 - ENG
D22073
Air leaks at pressure switch
release valve. Defective pressure switch release valve.
Defective check valve.
Have checked at an Authorized Warranty Service
Center.
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. Drain tank
then remove and clean or replace check valve. DO
NOT OVER-TIGHTEN.
A defective check valve results in a constant air leak
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 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” position.
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.
Air leaks in air tank or at air tank
welds.
DO NOT DRILL INTO, WELD OR OTHERWISE DO NOT DRILL INTO, WELD OR OTHERWISE DO NOT DRILL INTO, WELD OR OTHERWISE DO NOT DRILL INTO, WELD OR OTHERWISE DO NOT DRILL INTO, WELD OR OTHERWISE
MODIFY AIR TANK OR IT WILL WEAKEN. MODIFY AIR TANK OR IT WILL WEAKEN. MODIFY AIR TANK OR IT WILL WEAKEN. MODIFY AIR TANK OR IT WILL WEAKEN. MODIFY AIR TANK OR IT WILL WEAKEN.
THE TANK CAN RUPTURE OR EXPLODE. THE TANK CAN RUPTURE OR EXPLODE. THE TANK CAN RUPTURE OR EXPLODE. THE TANK CAN RUPTURE OR EXPLODE. 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 NOTE NOTE NOTE NOTE
Adjust the regulated pressure under flow
conditions (while accessory is being
used).
Air tank must be replaced. Do not repair the leak.