HANDLING
WORKING WITH COUPLING EQUIPMENT
Operating Manual MT 25 / 30 YT 109
DANGER!
Danger of injury!
Persons can be run over if the semi-trailer brake is
accidentally released.
X Replace damaged or worn coupling heads of the
brake and supply line immediately.
X Keep the sealing surfaces of the coupling heads
clean.
X Make sure during hitching that the brake and supply
lines cannot be nicked, worn through or torn off dur-
ing the drive.
X Be sure to precisely follow the sequence when
uncoupling the brake and supply lines. First, discon-
nect the supply line (red), then the brake line (yel-
low)
Hitching procedure
Fig. 99: Connections
1 Electrical connection
2 Supply line (red)
3 Brake line (yellow)
X
Lower the fifth wheel coupling until you can drive
underneath the semi-trailer.
The kingpin needs to lock in properly.
X Drive carefully in reverse.
The kingpin and the fifth wheel coupling have to lock in and
the control lights 2 und 3 light up.
X Lift the fifth wheel coupling.
The semi-trailer supports have to be at least 20 cm off the
ground.
X Connect the semi-trailer's connectors to the MT.
First, the coupling head of the brake line (yellow), then the
coupling head of the supply line (red) and electrical line.
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