Crane operation
11.3 Crane operation with main boom
11 - 60 3 112 993 en Operating manual GMK 6400
12.07.2013
• On the RCL, check whether the lamp II is on.
If lamp
II flashes, switch over the display; Ã p. 11 - 33.
• Check whether the current reeving of the auxiliary hoist is displayed,
e.g. 10. Correct the reeving if necessary;
à p. 11 - 29.
Lifting 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. 11 - 108.
H
The maximum rope speed is continuously decreased automatically from a
degree of utilisation of 80% onwards. Higher speeds are only enabled again
when the degree of utilisation is below 80% and the control lever has been
put in the initial position once.
When the hoist drum is turning, you will notice a pulse on the slewing indi-
cator (1).
You can regulate the speed by moving the control lever and changing the
engine speed with the accelerator.
You can set the desired engine speed (idling speed) with the button (1);
à p. 10 - 12.
G
Risk of accident 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 - 126
– The lifting limit switch is not overridden;
à p. 11 - 62
– The lowering limit switch is correctly set;
à p. 11 - 62
G
Risk of accident by suspended loads
Never turn off the engine with a suspended load. 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 backwards
Lowering:
• Push the control lever forwards
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