Troubleshooting Guide - Makita AC001 Owner's Manual

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.
PROBLEM CAUSE
Excessive Defective
tank pressure
pressure - switch.
safety valve
pops off. Improper
wiring.
Air leaks at Fittings are
fittings. not tight
enough.
Air leaks at Defective or
or inside dirty check
check valve.
valve.
Air leaks at Defective
pressure pressure
switch switch
unloader unloader
valve. valve, or
defective
check valve.
Air leaks in Defective air
air tank or tank.
at air tank
welds.
Air leaks Blown head
between gasket.
head and
valve plate.
Page 14
CORRECTION
Move the pressure switch lever to the
"OFF" position. If the unit doesn't shut
off, unplug. If the electrical contacts are
welded together, replace the pressure
switch.
If the contacts are good, check to see if
the pin in the pressure release valve is
stuck. If it does not move freely, replace
the valve.
Adjust or replace pressure switch.
Tighten fittings where air can be heard
escaping. Check fittings with a soap and
water solution. DO NOT OVER TIGHTEN.
A defective check valve results in a
constant air leak at the pressure release
valve where there is a pressure in the tank
and the compressor is shut off. Remove
and clean or replace check valve. DO
NOT OVER TIGHTEN.
Contact a trained service technician.
Air tank must be replaced. Do not repair
the leak. WARNING DO NOT DRILL
INTO, WELD OR OTHERWISE MODIFY
AIR TANK OR IT WILL WEAKEN. THE
TANK CAN RUPTURE OR EXPLODE.
Replace gasket or contact Authorized
Service Technician.