193
Coupling and uncoupling
NOTE: When coupling,
check the coupling head
rubbers of the air pipes of
both the truck and the
trailer for possible
damage.
Uncoupling the trailer
– Park the vehicle on flat and firm ground.
– Make absolutely sure that the trailer is braked.
– Place wheel chocks in front of and behind the trailer's rigid axle wheels.
– Detach the brake pipes and cables for lighting and ABS/EBS.
– Pull up the lever (B) up in to its locked position. The trailer coupling can only be
opened in the centre position or the two outer positions of the coupling jaw. (If the
coupling jaw is crooked, the coupling pin cannot be unlocked!)
NOTE: Before lever (B) can be pulled up on trailer couplings with
manual unlocking, the safety pawl (A) must be pulled from the coupling
and turned 90°.
– Set the towbar supports to the height of the trailer coupling. See the manufacturer's
operating instructions.
– Slowly drive the truck away from the trailer.
6.4 CONNECTING THE BRAKE PIPES
The vehicle has automatic coupling heads which are used to connect the brake pipes.
Connect the brake pipes with these coupling heads. These coupling heads have safety
lugs which make it impossible to connect the brake pipes incorrectly. The coupling
heads on the (semi-) trailer must of course have corresponding safety lugs.
If a mistake is made while connecting the brake pipes, the air brakes on the (semi-)
trailer do not release.
D002069
DW63246305.book Page 193 Friday, March 22, 2019 4:54 PM
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