UT
Handbook for Use and Maitenance – 50000 WB-80-87-95
Edition
01/11
Revisione
00
27
50000WB_e111_E.doc
due to the slope, increases. This might exceed the brake torque, and leave
the crane free to rotate without control (Picture 22) and create for both,
persons and objects a serious hazard.
The crane can rotate with 100% capacity with a slope of maximum 5%
with the boom full retracted and the boom angle < 45°. For working with the
boom extended or at high boom angle, the base of the crane must be put in
horizontal level.
During descent with a suspended load, remember that the boom outreach increases
progressively, so be very careful not to overload it. It is a good rule to retract the
telescope before lowering the boom.
Never subject the boom to inverse loads; if this rule is not observed, serious
damage to the structure of the equipment may result. (Picture 23).
Picture 22
