94
Maintenance and Service
Operator's Manual GB
9.6.2
9.6.2 Faults on the crane
Faults in the crane 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 must be corrected 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 re-
place 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 work-
shop.
The stabiliser extensions do
not slide out.
The extensions are still
locked.
Unlock the extensions.
The slewing movements are
irregular or cause abnormal
noises.
Insufficient oil in the hy-
draulic system.
Top up the oil tank
The column bearings are not
properly lubricated.
Lubricate the bearings
The column bearings 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