Manitowoc GROVE GMK 6400, Operating Manual

Page: 630 / 960

Crane operation
11.3 Crane operation with main boom
11 - 60 3 112 993 en Operating manual GMK 6400
1
2
.0
7.
201
3
•
On the RCL, check whether the lamp
II
is on.
If lamp II flashes , switch over the display;
à
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