8
Problem
Cause
Solution
Pressure relief valve may be
clogged up or set incorrectly
Dismount pressure relief valve
and clean with compressed
air, or correct the setting of
the valve
Powerpack does not give
the right oil flow, or r.p.m.
is too high
Pump is worn
Replace pump
The maximum pressure of
the powerpack is too high
Wrong adjustment of
pressure relief valve
Adjust pressure relief valve to
150 bar (see instructions on
page 7)
Leaking shaft seal in pump
Replace pump
Oil level too low
Add oil
Heavy vibrations because of
defective fan blade
or
defective rubber dampers
Replace defective parts
Hydraulic oil is foaming,
and oil is leaking at the air
filter on the filter housing
Too much oil in tank
Drain off oil from tank
Engine does not start
See engine manual