Driving modes
6.3 Rigging work for driving with a trailer
6 - 12 3 112 xxx en Operating Manual GMK6300L
xx.xx.xxxx
6.3.1 Switching on the slewing gear freewheel
When the main boom is set down on a trailer, the superstructure must be
able to slew when driving around corners. You must switch on the slewing
gear freewheel for this purpose.
• If a houselock is fitted, switch it off; à Switching off the houselock,
p. 11 - 17.
• Place the boom on the trailer as described in section Switching on the boom
floating position
, p. 6 - 13.
Prerequisites
– The engine for crane operation is running.
– The slewing gear brake is released, the lamp (1) has gone out;
à Releasing the slewing gear brake, p. 11 - 97.
Switching on
• Remove the padlock (4) from the bore (2).
• Push the pin (3) inward as far as it will go.
• Secure the pin with the lock in the bore (1)
and remove the key.
• Fit and secure the pin (3) on the other
slewing gear in the same way.
• Open the valve (5) – the slewing gear
freewheel is switched on.
H
Switching off the slewing gear freewheel; Ã p. 12 - 18.
G
Risk of accidents from the houselock being switched on!
Always switch off the houselock before setting down the main boom on the
trailer. Otherwise the superstructure will be unable to slew when driving
around corners.
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