Crane operation
10.1 Before operating the crane
Operating Instructions GMK5250L 3 302 633 en 10 - 15
27.09.2017
10.1.7 Locking/unlocking the superstructure
To lock, a pin can extend on the turntable and engage in two locking points
on the carrier.
Locking points The locking points are at 0° and at 180 °C.
• Open the Superstructure lock menu (1).
The display (1) will show the current super-
structure position.
• Slew to the locking point at 0° or 180°.
The display (1) shows positive and negative
values. For an overview;
à p. 10 - 117.
At the locking point, both arrows (2) are
shown.
In the range of ± 20° around the locking point,
an arrow (3) indicates the slewing direction
that leads to the locking point.
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