Fault
Probable cause
Action
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.
12.9.2. Faults on the CE device
Faults in the crane must be rectified immediately.
Every CE device is tested before delivery. If you encounter problems, check the troubleshooting
chart below before contacting Hiab service workshop.
DANGER
• Only correct yourself the faults that according to the table you may rectify.
• Follow the instructions exactly!
• All other faults must be corrected by personnel in a HIAB service workshop!
Fault
Action
The crane cannot be operated (oil
flows in unloaded circuit). The
warning triangle possibly double-
blinks.
1. Check that the stop button has been released.
2. Check that there are no other hydraulic/mechanical
faults – PTO can be activated, etc.
3. Check that the wire from the dump valve to the
electric unit is undamaged
4. Disconnect the Hirschmann connector from the
dump valve and measure that there is a voltage of
24 VDC between terminals 1 and 2
5. If the dump valve receives 24 VDC but oil still flows
in unloaded circuit, the dump valves must be
replaced at Hiab service workshop.
The warning triangle in the CE
electric unit double-blinks
regardless of the crane’s load.
1. Check that the stop button has been released.
2. Check that all the cables are undamaged
3. Go to a Hiab service workshop
The warning triangle does not
blink/ stay lit at maximum load.
Go to a Hiab service workshop
The truck’s engine stops when the
hydraulic PTO is switched on,
when the crane’s CE system
controls the engine stopper.
1. Check that the stop button has been released.
2. Check the conections
3. Go to a Hiab service workshop
Maintenance and Service
Jonsered 1188S CE
89
