UT
Handbook for Use and Maitenance – 50000 WB-80-87-95
Edition
01/11
Revisione
00
26
50000WB_e111_E.doc
When retracting or extending the main boom, make sure to reduce
speed in conjunction with the passage from one to the next extension. The
operation is requested in order to prevent stress on the cylinders structure,
and it also prevents dangerous load oscillations.
DANGER OF OVERTURNING
When rotating, use great care when moving from areas with greater stability to areas
with less stability.
When the load approaches
the support line of the
front
stabilisers,
(for
cranes installed behind
the driver’s cab) use
particular care because
the load carrying capacity,
on the front, is usually
greatly reduced, which
means that the vehicle is
very likely to overturn
(Picture 12).
DANGER OF OVERTURNING
The crane is equipped with a mechanical loocking system (a pin) the
prevents the rotation in the front area (for cranes installed behind the cab).
It is the duty of the installer to install the pin in those cases when the
stability on the front is not enough. As an option it is possible to ask for the
installation of a double load limiting device.
Use the crane, only after having checked that the installer complies
with the Cuntries roules.
DANGER OF COLLISION
With vehicle on a slope, do not rotate the load in the direction where the
horizontal moment,
Picture 21