Driving modes and rigging for on-road driving
6.2 Rigging work for driving with a trailer
6 - 8 3 112 993 en Operating manual GMK 6400
12.07.2013
6.2.2 Switching on boom floating position
If the main boom has been placed on a trailer, the boom floating position
must be switched on so that the main boom can move up and down.
• Enter the RCL code for the current rigging mode.
• Completely retract the main boom.
• Raise the main boom to a permitted angle within the working range.
• Turn the superstructure to the 0° to the rear working position and place the
main boom on a trailer.
• Remove the padlock (2).
• Switch over valve I – lever (1) upwards.
• Secure the lever (1) with the padlock (2).
• Switch the valve IV – lever (3) points down-
wards.
The boom floating position is now switched
on.
H
Switching off the boom floating position; Ã p. 12 - 17.
G
Risk of accident from the boom floating position being switched off
Always switch on the boom floating position when the main boom is on a
trailer.
This prevents the trailer hanging briefly with its full weight on the main
boom on uneven ground, the axle loads from rising suddenly, or the truck
crane from tipping when driving around corners.
G
Risk of accident from the main boom falling down
You may only switch on the boom floating position when the main boom
is already set down on the trailer.
This prevents the raised main boom from falling down.
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