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HYDRAULIC SCREW COMPRESSORS
MAINTENANCE
FAILURE
REASON
CORRECTIVE ACTION
Compressor is over heating
Insufficient cooling
capacity of hydraulic
system.
Check and ensure sufficient
cooling capacity if nesessary.
High ambient temperature.
Check installation location of
compressor. Arrange sufficient
cool intake air for compressor.
Compressor oil does
not circulate through
heat exchanger due the
incorrect operation of
faulty thermostatic by-pass
valve.
Check. Replace thermostatic by-
pass valve if necessary.
Compressor oil does
not circulate through
heat exchanger due the
incorrect operation of
faulty heat exchanger by-
pass valve.
Check. Replace heat exchanger
by-pass check valve if necessary.
Insufficient cooling
capacity.
Check. Improve cooling capacity
if necessary.
Dynaset oy offers wide range of
hydraulic components including
oil coolers.
FAILURE
REASON
CORRECTIVE ACTION
Compressor is over heating.
Oil level is too low.
Check the oil level. Fill if
necessary.
Oil filter soiled.
Replace oil filter cartridge.
Oil thermostat faulty.
Replace oil thermostat.
FAILURE
REASON
CORRECTIVE ACTION
Safety valve blows off (at
a permissible operating
pressure).
Safety valve pressure
setting too low.
Chack. Adjust if necessary.
Air-oil separating element
dirty-
Replace air-oil separating
element.
Safety valve defective.
Replace safety valve.
Pressure control valve
setting too high.
Check and adjust if necessary.
Incorrect operation of
minimum pressure valve.
Check minimum pressure
valve for smooth movement;
if necessary ensure smooth
operation or replace.
Summary of Contents for HKR 1300
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