Dynaset HKR 2000 - Page 63

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HYDRAULIC SCREW COMPRESSORS
MAINTENANCE
FAILURE REASON CORRECTIVE ACTION
Excessive compressor oil
consumption or oil in air
delivery line.
Lubrication nozzle in
compressor oil return line
clogged or faulty.
Check. Replace nozzle if
necessary.
Compressor oil return line
check valve clogged or
faulty.
Check. Replace check valve if
necessary.
Air-oil separating
element(s) clogged or
faulty.
Check. Replace air-oil separating
element(s) if necessary.
Oil level too high.
Check oil level. Drain and replace
oil if necessary.
Operating pressure and
delivery quantity are not
in the permissible range.
Check hydraulic pressure and
ow. Adjust if necessary.
FAILURE REASON CORRECTIVE ACTION
Compressor does not
produce compressed air.
Delivery line is closed. Check.
Air pressure control valve
failure or incorrect setting
(i.e. adjusted pressure
is lower than setting of
minimum pressure valve).
Check. Adjust if necessary.
Air intake valve does not
open.
Check the valve and air pressure
control valve. Replace parts if
necessary.
FAILURE REASON CORRECTIVE ACTION
Air pressure does not achive
requested rate.
Air pressure control valve
incorrect setting.
Check. Adjust if necessary.
Safety valve opens due
the incorrect setting of air
pressure control valve.
Check. Adjust air pressure
control valve if necesasry.
Failure in hydraulic system.
Check that hydraulic pressure
and ow are sucient. Adjust if
necessary.
Check that hydraulic motor of
the compressor for possible
leakage. Replace shaft seal if
necessary.
Air intake lter clogged. Check. Replace lter.
Air-oil separating
element(s) clogged of
faulty.
Check. Replace air-oil separating
element(s) if necessary.