Malfunctions during crane operation
14.7 Hydraulic emergency operation as per BGR 159
14 - 58 3 302 633 en Operating Instructions GMK5250L
27.09.2017
(A) – Emergency operation position
• Close the valve 7 – lever (1) at right angles to
the line.
(B) – Crane operation position
• Open the valve 7 – lever (1) parallel to the
pipe.
For slewing After switching over the valves behind the crane cab, you must additionally
close one valve on the slewing gears.
(A) – Emergency operation position
• Close the valve 6 – lever (1) at right angles to
the line.
(B) – Crane operation position
• Open the valve 6 – lever (1) parallel to the
pipe.
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