Rigging work
12.9 Rigging work on the main boom
12 - 126 3 112 993 en Operating manual GMK 6400
12.07.2013
12.9.5 Installing/removing the lifting limit switch
Function of the lifting limit switch; Ã p. 11 - 62.
For every reeved hoist rope, you must install a lifting limit switch, attach a
lifting limit switch weight and place it around the hoist rope.
Installing the
lifting limit switch
You can attach the lifting limit switch on the right or left side of main boom
head. Install the switch on the side that is closer to the last rope line leading
upwards. There can also be one lifting limit switch installed on each side.
On the left side
• Fit the lifting limit switch (4) onto the holder
(3) and secure it with the retaining pin.
• Remove the bridging plug (2) from the
socket (1).
• Lay the cable (5) in such a way that it will not
be damaged during crane operation and
connect it to the socket (1).
On the right side
• Plug the lifting limit switch (5) onto the
bracket (4) and secure it with the retaining
pin.
• Remove the bridging plug (2) from the
socket (1) and plug it into the dummy socket
(5).
• Lay the cable (6) in such a way that it will not
be damaged during crane operation and
connect it to the socket (1).
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