Malfunctions during crane operation
14.7 Hydraulic emergency operation as per DGUV
Operating manual 3 302 819 en 14 - 57
GMK3060
13.12.2018
14.7 Hydraulic emergency operation as per DGUV
H
This section only applies to the hydraulic emergency operation as per DGUV.
When the truck crane is equipped with the standard hydraulic emergency
operation;
à Hydraulic emergency operation with the hand pump, p. 14 - 51.
With this additional equipment, the truck crane is equipped with an hydraulic
emergency bleed valve in accordance with DGUV. This allows small loads to be
transported in case of emergency, e.g. in the event of an engine failure.
14.7.1 Applications and function
The hydraulic emergency operation in accordance with DGUV enables the
Emergency operation of the GMK3060 and the Emergency supply of
another truck crane.
Emergency operation
In emergency operation, you can drive the main
hoist, derricking gear and slewing gear.
The energy source for the crane's hydraulic
system can be:
– The hand pump (3) for self-supply
– A transformer (4) driven by an external hydrau-
lic energy source for external supply
The hydraulic circuits are switched via the
valves (1).
The control levers (2) are used to control the
direction of movement and the speed.
s
G
Risk of accidents due to improper use!
Use hydraulic emergency operation only to transport small loads in emer-
gencies. Have the malfunction rectified as soon as possible. Crane opera-
tion in hydraulic emergency operation is prohibited since it is not moni-
tored by the RCL.
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