Crane operation
10.4 Operation of the rated capacity limiter
10 - 56 3 302 633 en Operating Instructions GMK5250L
27.09.2017
To enable the slewing movement, you must
reduce the working radius correspondingly,
e.g. to 16 m (52.5 ft) for slewing into slewing
range
2
.
– When telescoping or derricking
The diagram remains at the current posi-
tion. The displays (2) move a corresponding
distance up or down.
In a shutdown range (1) a movement
towards the shutdown limit is continually
reduced until reaching a standstill.
The speed reduction occurs in the same
manner as with the Standard slewing range
type;
à p. 10 - 54.
Special case – disabled range
A slewing range can be disabled in certain
cases.
If e.g. an outrigger span (1) is rigged and oper-
ations are to be performed at the right side,
with large counterweight combinations, a
small working radius and a small load it is pos-
sible for the stability towards the rear to
become endangered within the slewing
range
1
.
The range
1
in the diagram would then be
empty and slewing out of range
4
would be
stopped at the range limit (2).
In this case you can increase the working
radius – assuming this is permitted by the ena-
bled working range and the external condi-
tions. If the required stability is then present,
the slewing range
1
is enabled and displayed.
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