Crane operation
11.5 Crane operation with main boom
11 - 80 3 302 690 en Operating manual
GMK4100L-1
23.11.2017
• Check whether the current reeving of the auxiliary hoist is displayed,
for example, 6. Correct the reeving if necessary;
à p. 11 - 39.
Lifting and
lowering
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 - 129.
When the hoist drum is turning, you will notice a pulse on the slewing
indicator (1).
You can regulate the speed by moving the control lever and changing the
engine speed with the accelerator.
You can switch on high-speed mode for a higher speed;
à p. 11 - 113.
G
Risk of accidents due to gaps in monitoring
Operation of the hoist will only be monitored fully if:
– The lifting limit switch is correctly rigged;
à p. 12 - 120
– The lifting limit switch is not overridden;
à p. 11 - 82
– The lowering limit switch is correctly set;
à p. 11 - 82
G
Risk of accident by suspended loads
Never switch off the engine whilst a load is suspended. You must have the
control levers at hand in order to intervene at any time.
Always set down the load before you leave the crane cab.
Raising: Pull the control lever to the rear – symbol (3) is displayed.
Lowering: Pull the control lever to the front – symbol (2) is displayed.
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