KAESER CSD 75, Руководство по обслуживанию, Страница: 78 / 81

Appendix
11 --- 73
11.3 Trouble shooting: Possible cause ---Remedy
Do not attempt to carry out any repair until you are certain of its cause.
11.3.1 Airend temperature is too high (greater than 167
•
F-- 200
•
F)
Possible cause: Remedy:
Cooling air inlet or outlet is too close to
wall or other blockage. Situate unit for adequate air flow.
Air intake filter mats are clogged. Clean the mats or replace if necessary.
Ambient temperature is too high. Provide cooler air from other source or
move compressor to a cooler location.
See chapter 1.6.
Ambient temperature too low. Provide warmer air from other source
or move compressor to warmer loca-
tion or add a cabinet heater. See chap-
ter 1.6.
Cooling air supply is inadequate. Provide required amount of ventilation.
If cooling air outlet duct is used it may
be too narrow or too long. Consult authorized KAESER distributor
for duct requirements.
On air cooled units the fins of the cool-
ers (oil cooler and air aftercooler) are
clogged. Clean with compressed air, water or
steam injector. See chapter 9.4.
On water cooled units the heat ex-
changer elements may be clogged. Inspect heat exchanger elements.
Clean or replace as necessary.
Oil level is low. Check oil level and add necessary
amount of recommended oil.
Check dirt trap strainer in oil return line
for possible contamination.
Thermostatic valve is not functioning
correctly. Check the valve spring and actuating
piston. Replace defective parts.
Idle pressure is too low for proper oil
circulation. Check idle pressure at the separator
tank. If the pressure is low check the
inlet valve. Adjust inlet valve to main-
tain adequate idle pressure.
Wrong oil is used. Drain old oil completely and replace
with recommended type.
Consult authorized KAESER distributor
for other oil types not listed.
Oil filter is clogged. Replace filter.
Airend is defective. Check airend and replace if defective.
11.3.2 Motor overload relay switches the unit off
Possible cause: Remedy:
Overload relay is defective or setting is
wrong. Check line current and adjust overload
relay as necessary.
Replace relay if defective.
Attention!