Crane operation
11.3 Crane operation with main boom
11 - 74 3 112 xxx en Operating Manual GMK6300L
xx.xx.xxxx
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) will be green if 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 operation are switched off;
à Control lever configuration, p. 9 - 18.
You can have the operating hours of the telescoping mechanism displayed;
à p. 11 - 109.
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. 11 - 77.
– Before telescoping with teleautomation;
à p. 11 - 89.
You can adjust the sensitivity of the control levers to the operating condi-
tions;
à Setting the characteristic curves for the control levers, p. 11 - 106.
.
G
Risk of accident due to unexpected crane movements!
In the case of multiple configuration, check whether the control lever func-
tion
Telescoping is switched on before you move the control lever for tele-
scoping.
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. 12 - 106,
– The lifting limit switch is not overridden;
à p. 11 - 60.
S
Risk of damage to the hoist rope!
The rope can become slack if the hook block touches the ground during
retraction operations. Rope loops will form, which can cause the load to slip
and damage the hoist rope.
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