146
Maintenance and Service
Operator's Manual GB
9.6.3
Fault
Probable cause
Action
The slewing movements are
irregular or cause abnormal
noises.
Insufficient oil in the hy-
draulic system.
Top up the oil tank
Insufficient oil in the slew-
ing housing.
Top up the oil in the slew-
ing housing to the required
level.
The upper slewing bearing
is not properly lubricated.
Lubricate the bearing
The bearings in the slewing
housing are damaged.
Go to a HIAB service work-
shop
Add-on equipment does not
work properly (rotator,
hoist, etc.)
Connectors not properly
connected.
Reconnect the add-on equip-
ment, according to the in-
structions.
Other defect.
Go to a HIAB service work-
shop
Leak on hydraulic system:
leaking coupling, hose or
line
Danger! Keep well away
from any oil leak.
1.
Press a Stop button
2.
Disengage the PTO.
3.
Contact a HIAB ser-
vice workshop
The remote control gradual-
ly works less well.
Blocked filter insert
Replace the filter insert.
One remote control function
does not work.
The remote control lever
was not in neutral at start
up.
1.
Push in the
Stop but-
ton
.
2.
Make sure that all lev-
ers are in neutral.
3.
Pull out the
Stop but-
ton
.
9.6.3 Faults in the hoist
Faults in the hoist must be rectified immediately.
DANGER
• Only correct yourself the faults that ac-
cording 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!