Crane operation
10.5 Crane operation with main boom
10 - 86 3 302 633 en Operating Instructions GMK5250L
27.09.2017
Raising and
lowering
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.
You can regulate the speed by moving the control lever and changing the
engine speed with the accelerator.
H
The maximum derricking speed will automatically be reduced as the system
length is increased. If you now reduce the working radius (e.g. by retracting
the telescoping), the derricking speed will automatically be increased again.
You can adjust the desired engine speed (idling speed) with button (1);
à p. 9 - 7.
You can limit the maximum derricking speed;
à p. 10 - 123.
G
Risk of accident due to unexpected crane movements!
If assigned more than one function, check that the
Derricking control lever
function is switched on before you move the control lever for derricking.
This prevents accidents due to unexpected crane movements.
Lowering
the boom:
Push the control lever to the right – the main boom is
lowered.
Raising
the boom:
Push the control lever to the left – the main boom is raised.
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