1.1
Malfunction of compressor’s hydraulic
control valve.
1.2
Compressor’s excessive internal pressure.
1.3
Failure in hydraulic system.
1.4
Air pressure in delivery line interferes
compressor’s start.
1.1
Check and repair.
1.2
Release the frame tank’s pressure, for instance, by means of
3-way valve installed to the delivery line).
In case of intermittent / cyclic duty, either electric pressure
switch (-E) or pneumatic cut-off (-PNE) is recommended.
1.3.1
Check whether the hydraulic fluid flow and pressure are
sufficient. Adjust when necessary.
1.3.2
Check the hydraulic motor for possible leakage. Replace
motor if necessary.
1.4
Let off the pressure from the delivery line prior to staring the
compressor.
Ref. to 1.2
1.
COMPRESSOR DOES
NOT START WHILE
CARRIER’S ENGINE IS
RUNNING AND
HYDRAULIC SYSTEM IS
ON.
2.
COMPRESSOR STARTS
HARDLY
See 1.3
See 1.4
3.
AIR PRESSURE DOES
NOT ACHIEVE
REQUESTED RATE.
3.1
Safety valve’s failure or incorrect
setting.
3.2
Failure in hydraulic system.
3.3
Intake air filter is clogged.
3.1
Check and adjust / replace when necessary.
3.2.1
Check whether the hydraulic fluid flow and pressure are
sufficient. Adjust when necessary.
3.2.2
Check the hydraulic motor for possible leakage. Replace
motor if necessary.
3.3
Check and replace.
TROUBLESHOOTING
17/21
MAY CHANGE WITHOUT PRIOR NOTICE
HYDRAULIC COMPRESSOR HK400/8-23_PNE
July 2013 JLe