Crane operation
11.4 Operation of the rated capacity limiter
11 - 60 3 302 819 en Operating manual
GMK3060
13.12.2018
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 position.
The displays (2) move a corresponding dis-
tance 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 man-
ner as with the Standard slewing range type;
à p. 11 - 58.
Special case – disabled range
A slewing range can be disabled in certain cases.
If for example, an outrigger span (1) is rigged and
operations are to be performed at the right side,
with large counterweight combinations, a small
working radius and a small load it is possible for
the stability towards the rear to become endan-
gered 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 enabled working
range and the external conditions. If the required
stability is then present, the slewing range
1
is
enabled and displayed.
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