Crane Operation With Main Boom; Checks During Crane Operation - Manitowoc Grove GMK4100L-1 Operating Manual

11.5
11.5.1
Horizontal
alignment
G
Safe distances
Operating manual
GMK4100L-1

Crane operation with main boom

Checks during crane operation

During crane operation, the truck crane may tilt if the ground gives way due
to varying loads.
Risk of accidents if the truck crane is not level
The RCL calculates the working radius from the length and angle of the
main boom. The actual working radius changes and there is a danger of the
crane overturning if the truck crane is not level.
•
Check the horizontal alignment of the truck crane during crane operation
on the display (1);
Due to deformation of the frame, the horizontal alignment can change by up
to 2° when the superstructure is turned from the 0° or 180° position.
If the truck crane does not return to the horizontal position after being
turned back to the 0° or 180° position, you must immediately determine
the cause and eliminate it and, if necessary, realign the crane. Observe the
position of the superstructure when doing so;
on outriggers horizontally , p. 12 - 58.
During crane operation, always ensure that the truck crane and the load are
at a sufficiently large distance to objects and persons. Pay particular atten-
tion to objects that pose a direct danger (for example, gas containers or
scaffolding).
Keep a safe distance to electrical cables;
lines , p. 12 - 16.
à
p. 12 - 58.
à
3 302 690 en
Crane operation
11.5 Crane operation with main boom
à
Levelling the truck crane
Safe distance from overhead power
s
11 - 73