Mercedes-Benz Actros Operating Instructions Manual page 316

Trailers/semitrailers
314
Arrangement of connections
Connections for semitrailer (example: semitrailer
tractor vehicle)
Connections for trailer (example: platform truck)
Example: duomatic coupling, front
Connecting cables and compressed-air
lines
! Arrange the cables and compressed-air
lines in such a way that they easily yield to
all movements without tension, kinking or
friction when cornering, etc. Before con-
necting the cable, make sure the voltage
rating of the consumer equipment on the
trailer is correct.
X
With dual coupling head: push down and
hold the lever at dual coupling head B.
X
With dual coupling head: connect the
compressed-air lines.
X
With dual coupling head: swing upwards
and release the lever at dual coupling head
B.
X
Without dual coupling head: connect brake
line coupling head : (yellow).
X
Without dual coupling head: connect sup-
ply line coupling head ; (red).
The shutoff valves in the coupling heads
i
open automatically when the connection is
made.
X
After connecting the compressed-air lines
to the trailer, adjust the brake pressure
regulator (if installed).
X
Semitrailer tractor vehicle: connect 24 V
(15‑pin) power supply plug ? to the trailer.
X
Platform truck: connect the power supply
of the trailer to 24 V (15‑pin) socket ?.
On trailers with a 12 V power supply: use
i
12 V (13 pin) trailer power socket C.
Turn signal monitoring is also active when
i
using LED tail lamps. A system failure is
indicated by the lamps flashing at double
the frequency or by a display message in
the driver information system.
X
Semitrailer tractor vehicle: connect
ABS/BS (5‑/7‑pin) connecting cable plug
= to the trailer.
X
Platform truck: attach the connecting cable
from the trailer to ABS/BS (5-/7-pin)
socket =.