User Manual

221
FAULTS AND REMEDIAL ACTIONS
26. Hydraulic system does not lift
Cause
Hydraulic oil still cold.
Insufficient oil in the hydraulic oil reservoir.
Air drawn in through suction line connections.
Suction filter soiled.
Remedial Action
Let engine run for a few minutes at average
speed before any hydraulic work.
Top up oil level in accordance with specifications.
Seal the connections (at workshop).
Replace suction filter.
27. Heater ineffective
Cause
Heating water valve is partially closed / air filter
dirty.
Remedial Action
Open the heating water valve / replace air filter.
28. Heater fan not working
Cause
Power supply to blower interrupted or blower
failed / blocked.
Remedial Action
Check fuse / power supply, remove foreign
bodies (in workshop).
29. Air-sprung seat fails to adjust
Cause
Compressed air compressor not functioning.
Remedial Action
Check fuse / power supply.
30. Air conditioning does not work
Cause
Remedial Action
Fresh air fan not switched on / not functioning /
temperature selector set at '0'.
Switch on fan / set temperature selector to
desired outlet air temperature / check fuse and
power supply.
AC compressor not functioning - magnetic clutch
not engaging / V-belt is too slack or cracked.
Check fuse / power supply for magnetic clutch or
V-belt.
Insufficient refrigerant in the system (system on,
engine speed 2,000 rpm; ball must be floating in
sight glass on fluid reservoir).
Top up refrigerant (at workshop).
31. Cooling effect of air conditioning inadequate
Cause
Condenser dirty (upstream of engine radiator).
Fresh air/ recirculating air filter dirty.
Evaporator iced up.
Insufficient refrigerant in the system (system on,
engine speed 2,000 rpm; ball in sightglass of fluid
tank must be floating).
Remedial Action
Blow out or spray condenser from inside out.
Blow out recirculated air filter, tap out the fresh air
filter; replace if necessary.
Reset temperature selector; have the cause
rectified (at workshop).
Top up refrigerant (at workshop).