Crane operation
11.5 Crane operation with main boom
11 - 104 3 302 819 en Operating manual
GMK3060
13.12.2018
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) will light 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 movement are switched off;
à Control lever configuration, p. 9 - 14.
You can display the operating hours (1) of the telescoping mechanism;
à p. 11 - 135.
Function of the
control lever
This section only describes the function of the control lever. Before telescoping,
a number of prerequisites need to be fulfilled as well.
– Before manual telescoping;
à p. 11 - 107.
– Before telescoping with teleautomation;
à p. 11 - 116.
You can adjust the sensitivity of the control levers to suit the operating conditions;
à Setting the characteristic curves for the control levers, p. 11 - 133.
.
G
Risk of accident due to unexpected crane movements!
In the case of multiple configuration, check that 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 incomplete monitoring!
Boom extension will only be monitored completely if
– The lifting limit switch is correctly rigged;
à p. 12 - 95
– The lifting limit switch is not overridden;
à p. 11 - 88.
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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