Crane operation
11.1 Before operating the crane
11 - 18 3 302 690 en Operating manual
GMK4100L-1
23.11.2017
Switching on the houselock
• Select the symbol (5).
• Press the button until the symbol (4) is
displayed –
Houselock switched on.
The display first shows the symbol (1), then (2)
and then shows the symbol (4) when the
houselock is switched on.
If the symbol (3) is displayed:
• Let go of the button.
The lock is blocked and you need to correct
the position of the superstructure as
follows.
• Select the symbol (6).
• Press the button until the symbol (1) is
displayed –
Houselock switched off.
• Apply the slewing gear brake.
• Switch on the slewing gear and slew the
superstructure a little further (minimally).
• Switch off the slewing gear.
• Select the symbol (5).
• Press the button until the symbol (4) is
displayed –
Houselock switched on.
• If symbol (3) is still shown, you must again
correct the position of the superstructure.
S
Risk of damage due to slewing with blocked lock
Before slewing ensure that the houselock is switched off. Otherwise the
system will be damaged during slewing.