SECTION 7: TROUBLESHOOTING
AIR IN ARC
®
300 SERIES ALL-IN-ONE POWER SYSTEM
®
PAGE - 108
090010-OP_r0
COMPRESSOR (CONTINUED)
Excess amount of oil in air
discharge (continued)
Compressor oil level too high
The correct oil level is the half-way mark on
the dipstick with the compressor shut down,
and the machine on a level surface. Drain
excess oil to correct level.
Tank not positioned with the drain at its
lowest point. Reposition machine.
NOTE:
machine must be operated while on a level
surface in order for proper compressor oil
circulation throughout the system.
Coaleser element plugged or damaged Replace the coaleser element. Consult
Sec-
tion 6.5.6, Replacing the Spin-on Air/Oil
Coalescer
. Order replacement coalescer
element—see
Table 9A: Recommended
Spare Parts List
.
Excessive moisture in the
compressed air
Moisture accumulating in air tank
Drain water from air tank. Refer to
Section
6.5.9, Draining the Air Tank
.
Compressor system fails to build-
up pressure
Service valve is open
Close service valve.
Pressure gauge is malfunctioning
Check pressure gauge function/control line
routing: adjust, repair or replace as
necessary.
Check for proper operation with an auxiliary
air source. Replace if necessary.
Inlet valve Teflon “O” ring popped out of
groove
Replace “O” ring: Refer to
Section 6.5.2,
Repairing the Air Inlet Valve
.
Order inlet
valve repair kit—see
Table 9A: Recom-
mended Spare Parts List
.
Inlet valve piston stuck in down posi-
tion.
Check for proper operation with an auxiliary
air source—replace or rebuild inlet valve.
Discharge piping leaks
Tighten connections; replace faulty piping.
Leaking compressor shaft seal
Replace shaft seal with available kit. Refer
to
Section 6.5.7, Repairing the Compres-
sor Shaft Seal
.
Order shaft seal kit—see
Table 9A: Recommended Spare Parts
List
Soiled inlet valve
Remove valve and clean piston. Refer to
Section 6.5.2, Repairing the Air Inlet
Valve
.
Order inlet valve repair kit—see
Table 9A: Recommended Spare Parts
List
.
Continued on next page
7.2 TROUBLESHOOTING GUIDE
Fault/Malfunction
Possible Cause
Corrective Action
