189
Coupling and uncoupling
CAUTION: The status of the lock must be checked before every
journey, the slider locks must be fully closed. In other words the
operating cylinder must be fully retracted.
Only start a journey if the lock is correctly closed.
Uncoupling semi-trailer
– Park the vehicle on flat and firm ground.
– Make absolutely sure that the semi-trailer is braked.
– Place wheel chocks in front of and behind the semi-trailer wheels.
– Wind down the semi-trailer supports using quick operation until the feet touch the
ground. Switch to slow operation and wind down a few turns further. Do not lift the
semi-trailer from the fifth wheel.
– Detach the brake pipes and cables for lighting and ABS/EBS.
– If fitted, detach the safety hook or padlock.
– Unlock the fifth wheel by pulling out the handle, as explained in the manufacturer’s
operating, care and maintenance instructions. The jaw is now opened and ready for
uncoupling.
– Slowly drive the tractor from under the semi-trailer.
NOTE: On tractors with air suspension, the remote control of the air
suspension is used for coupling and uncoupling the trailer. When coupling,
the vehicle can be brought to the correct coupling height.
Important
After coupling or uncoupling a semi-trailer, always press the switch for normal driving
height to automatically return to the correct driving height.
D005074
DW63246305.book Page 189 Friday, March 22, 2019 4:54 PM
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