Mercedes-Benz Actros 2017, Operating Instructions Manual

Page: 400 / 436

result of a loss of compressed air, the
brakes may overheat and be damaged.
Charge the compressed-air system or dis-
engage the spring-loaded parking brake
manually.
R
For vehicles with air suspension, check the
driving level during towing/tow-starting
and correct it if necessary. Otherwise, parts
of the vehicle or the air suspension could be
damaged.
R
Before towing, switch off Active Brake
Assist. Otherwise, Active Brake
Assist could brake the vehicle while it is
being towed. This could cause the brakes to
overheat and be damaged.
If you transport the vehicle on a low-loader, the
permissible vehicle height may be exceeded.
Pay attention to the headroom clearance of
buildings, e.g. bridges.
Before towing away, agree on a clear signal with
the towing vehicle driver. Both you and the tow-
ing vehicle driver must adapt the driving style
used to the more difficult conditions.
Information on charging the compressed-air
system using an external compressed-air
source can be found in the "Charging the
compressed-air system" section (
Y
page 394).
Information on releasing the spring-loaded park-
ing brake can be found in the "Releasing the
spring-loaded parking brake" section
(
Y
page 400).
Coupling jaw
Example: coupling jaw
Use the front coupling jaw for manoeuvring,
tow-starting and towing away.
The coupling pin is prevented from rotating (e.g.
when towing with a steel rope) by locking spring
=
with a retaining pin.
X Vehicles with a large approach/departure/
overhang angle: fold down the collapsible
step.
X
Remove coupling pin cover
:
forwards.
X Grasp licence plate holder
;
at the sides and
swing it down.
X
Using a thumb, push locking spring
=
with
the retaining pin upwards and, in doing so,
release coupling pin
?
.
X
Turn coupling pin
?
clockwise by 90° and
pull it upwards and out.
X Attach the towbar.
X Insert coupling pin
?
downwards through
the tow bar eyelet and turn it anti-clockwise
by 90° to its original position.
The retaining pin engages audibly.
X Position coupling pin cover
:
and clip it in
place.
398
Jump-starting, tow-starting and towing away
Breakdown assistance