8.6.2. Faults in the crane
Faults in the crane must be rectified immediately.
DANGER
• Only correct yourself the faults that according to the table you may rectify.
• Follow the instructions exactly!
• All other faults may be dealt with only by personnel in a HIAB service workshop!
Fault
Probable cause
Action
The hydraulic pump makes a
noise. Three causes:
Warning!
Stop using the crane
immediately!
Oil tank filler cap air
filter is blocked.
Clear the blockage or replace
the entire filler cap.
Oil level in the tank is
too low.
Top up the oil tank and bleed
the hydraulic system.
The pump is faulty.
Go to a HIAB service
workshop.
The stabiliser extensions do not
slide out.
The extensions are
still locked.
Unlock the extensions.
Hydraulic fault.
Go to a HIAB service
workshop.
The slewing movements are
irregular or cause abnormal
noises.
Insufficient oil in the
hydraulic system.
Top up the oil tank.
Insufficient oil in the
gear box.
Top up the oil in the gear box
to the required level.
Bearing assemblies
and pinion are not
properly lubricated.
Lubricate the bearing while
slewing.
Bearing assemblies
or pinion are
damaged.
Go to a HIAB service
workshop.
Add-on equipment does not work
properly.
Connectors not
properly connected.
Reconnect the add-on
equipment according to the
instructions.
Other defect.
Go to a HIAB service
workshop.
Leak on hydraulic system: leaking
coupling, hose or line.
Danger! Keep well away from
an oil leak.
1. Press a Stop button.
2. Disengage the PTO.
3. Contact a HIAB service
workshop.
Maintenance and Service
Jonsered 1250RZ -1500RZ R CE
67