13–9/10–641 Page 50
SYMPTOM
POSSIBLE CAUSE
REMEDY
Compressor is low on
1.
Restricted air filter.
1.
Clean or replace filter.
delivery and pressure.
2.
Sticking inlet valve.
2.
Inspect and clean inlet
valve.
3.
Unload pressure adjusted
3.
Adjust the unload pressure.
too low.
See Manual 13–9/10–647.
4.
Minimum pressure valve
4.
Disassemble and clean
stuck closed.
valve.
High discharge air
1.
Thermostatic mixing
1.
Repair or replace valve.
temperature.
valve stuck open.
2.
Dirty or clogged cooler face.
2.
Clean cooler.
3.
Insufficient cooling
3.
Provide unrestricted supply
air flow.
of cooling air.
4.
Clogged oil filter or
4.
Replace filter or clean
cooler (interior).
cooler.
5.
Low compressor oil.
5.
Add oil to proper level.
Excessive Oil Consumption
1.
Oil carryover through lines.
1.
See “Oil Carryover”, below.
2.
Oil leaks at all fittings
2.
Tighten or replace fittings
and gaskets.
or gasket.
Oil Carry–Over
1.
Overfilling the reservoir.
1.
Drain excess oil from
system.
Air/oil under pressure will cause severe personal injury or death. Shut down com-
pressor, relieve system of all pressure, disconnect, tag and lockout power supply
to the starter before removing valves, caps, plugs, fittings, bolts, and filters.
2.
Clogged, broken or loose
2.
Tighten or replace faulty
oil return lines
lines.
3.
Ruptured oil separator
3.
Replace element.
element.
4.
Loose assembly.
4.
Tighten all fittings and
gaskets.
5.
Foam caused by use of
5.
Use Gardner Denver
R
incorrect oil.
AEON
t
9000 SP
Lubricating Coolant.
6.
Inoperative minimum
6.
Clean out or replace valve.
pressure valve.
