16
MANOEUVRES OF THE CRANE LOADS
(version with lifting moment limiting device)
16.1
Generality
(!)
Before manoeuvering the load, verify that the working area is suitable
for your crane.
The lifting curves of the capacity plate indicate the maximum load that the
crane can lift at a certain radius and at a certain height. To utilize the maxi-
mum capacity of the crane, it is necessary to position the inner boom as indi-
cated on the capacity plate. During load handling, do not exceed the reach
limits given, or the load indicated on the above mentioned charts. If the limits
are exceeded, the limiting device, allowing all manoeuvres, which reduce the
lifted load within the permitted reach limits and forbid all other manoeuvres,
will be immediately activated.
Lifting moment limiting device
A characteristic which permits the classification of cranes is their lifting capa-
city or maximum lifting moment. The moment is defined by the value obtained
from the weight of the load to be lifted (kg) by its distance (meters) from the
centerline of the crane rotation.
The device called “lifting moment limiting device” preserves the crane structure
from overloads, as it prevents any movement which increases the value of the
moment up to the maximum established value.
16
CONTROLS TO
OPERATE THE CRANE
GR2_45»60_3_4_AS_XS
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