Manitowoc Grove GMK4100L-1 Operating Manual page 644

Crane operation
11.4 Operation of the rated capacity limiter
11 - 56
To enable the slewing movement, you must
reduce the working radius correspondingly,
for example, to 16 m (52.5 ft) for slewing into
slewing range
– 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
à
type; p. 11 - 54.
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 combina-
tions, a small working radius and a small load
it is possible for the stability towards the rear
to become endangered within the slewing
1
range .
1
The range
empty and slewing out of range
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
3 302 690 en
2
.
in the diagram would then be
4
1
is enabled and displayed.
Operating manual
would be
GMK4100L-1