Crane operation
10.5 Crane operation with main boom
Operating Instructions GMK5250L 3 302 633 en 10 - 97
27.09.2017
Switching on
the telescoping
mechanism
After the ignition is switched on, all of the power units will be switched off
and the lamps in the corresponding buttons will light up only dimly.
• Press the button (1) once.
– The lamp in button (1) lights up brightly.
– The symbol (2) is green when the telescoping mechanism is
switched on.
If the control lever is assigned more than one function, all other power units
which are assigned the same control lever movement are switched off;
à Control lever configuration, p. 8 - 14.
You can display the operating hours (1) of the telescoping mechanism;
à p. 10 - 130.
Function of the
control lever
This section only describes the function of the control lever. Before tele-
scoping, a number of prerequisites need to be fulfilled as well.
– Before manual telescoping;
à p. 10 - 100.
– Before telescoping with teleautomation;
à p. 10 - 110.
– Before telescoping with a folded swing-away lattice;
à p. 10 - 96.
You can adjust the sensitivity of the control levers to suit the operating con-
ditions;
à Setting the characteristic curves for the control levers, p. 10 - 126.
.
s
G
Risk of accident due to unexpected crane movements!
In the case of multiple configuration, check whether the control lever
Telescoping function is switched on before you move the control lever for
telescoping.
This prevents accidents caused by unexpected derricking!
G
Risk of accidents due to gaps in monitoring!
Boom extension will only be monitored completely if
– the lifting limit switch is correctly rigged;
à p. 11 - 120,
– the lifting limit switch is not overridden;
à p. 10 - 82.
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