Trouble Shooting, Oil Carry-Over - Gardner Denver EDF-KB Operating And Service Manual

SYMPTOM
Compressor is low on
delivery and pressure.
High discharge air
temperature.
Excessive Oil Consumption
Oil Carry–Over
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.
POSSIBLE CAUSE
1. Restricted air filter.
2. Sticking inlet valve.
3. Subtractive pilot or unload
pressure adjusted too low.
4. Minimum pressure valve
stuck closed.
1. Thermostatic mixing
valve stuck open.
2. Dirty or clogged cooler face.
3. Insufficient cooling
air flow.
4. Clogged oil filter or
cooler (interior).
5. Low compressor oil.
1. Oil carryover through lines.
2. Oil leaks at all fittings
and gaskets.
1. Overfilling the reservoir.
2. Clogged, broken or loose
oil return lines
3. Ruptured oil separator
element.
4. Loose assembly.
5. Foam caused by use of
incorrect oil.
6. Inoperative minimum
pressure valve.
13–8–606 Page 45
REMEDY
1. Clean or replace filter.
2. Inspect and clean inlet
valve.
3. Adjust the valve or unload
pressure. See page 24.
4. Replace valve.
1. Repair or replace valve.
2. Clean cooler.
3. Provide unrestricted supply
of cooling air.
4. Replace filter or clean
cooler.
5. Add oil to proper level.
1. See "Oil Carryover", in this
section.
2. Tighten or replace fittings
or gasket.
1. Drain excess oil from
system.
2. Tighten or replace faulty
lines.
3. Replace element.
4. Tighten all fittings and
gaskets.
5. Use Gardner Denver
AEON 4000 or 9000 SP
Lubricating Coolant.
6. Replace valve.