Manitowoc Grove GMK 5250L Operating Instructions Manual page 3

1
1.1
G
With reduction
switched on
With reduction
switched off
Additional page GMK
Reduction of slewing speed – can be switched
on and off
In addition to the specifications in the lifting capacity table and operating
manual supplied, the automatic reduction of the slewing speed can be
switched off under certain conditions.
Important notes
These additional pages describe only this special function.
Also observe all specifications and safety instructions in the Operating
Instructions and lifting capacity table supplied.
Risk of accidents due to excessive slewing speed!
Observe the specified maximum permissible slewing speeds. This prevents
the truck crane from being subjected to excessive dynamic loads, which
can lead to damage to crane sections and the truck crane overturning.
Always slow down and accelerate the slewing movement slowly and avoid
swinging loads.
When reduction is switched off, you as crane operator are responsible for
a slewing speed that is suitable the current loading case.
Depending on the degree of utilisation and the working radius, the slewing
speeds are automatically reduced to the maximum permissible levels listed
in the lifting capacity table under the comments on slewing speed.
If the maximum slewing speeds listed in the supplied lifting capacity table are
exceeded, the buzzer tone sounds and a warning symbol is displayed.
The slewing speed is not reduced.
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