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290 Driving mode
Extend the saddle supports on the semi‐
#
trailer; see the manufacturer's operating
instructions.
Set the trailer's towbar support to the height
#
of the trailer coupling; see the manufacturer's
operating instructions.
Remove the cables and compressed-air lines
#
(
page 291).
/
Open the trailer/fifth-wheel coupling; see the
#
manufacturer's operating instructions.
Vehicles with a trailer: drive forwards slowly.
#
Vehicles with a semitrailer: drive forwards
#
slightly until the fifth-wheel kingpin is free.
Semitrailer truck with air suspension: lower
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the chassis (
page 262) until there is a gap
/
between the semitrailer plate and the fifth-
wheel coupling.
Drive forwards fully.
#
Fit the mudguard centre parts.
#
Cables and compressed-air lines
Notes on cables and compressed-air lines
& WARNING Risk of falling when connect‐
ing/disconnecting the compressed-air
lines without climbing aids
If you climb onto or down from the vehicle in
order to connect/disconnect the cables and
compressed-air lines without appropriate
climbing aids, you could:
slip and/or fall
R
damage components, e.g. the battery
R
cover, and fall as a result
burn yourself on hot components
R
Always use secure climbing aids, e.g. a
#
suitable ladder.
& WARNING Risk of burning due to the
cover of the silencer being hot
The cover of the silencer can get very hot
when driving. You could burn your feet if, for
example, you step on this cover in order to
connect/disconnect the cables and
compressed-air lines.
Never step on the cover of the silencer.
#
When operating additional consumers on your
trailer/semitrailer, make sure that no overloading
occurs. If you fit several reversing lamps on the
trailer/semitrailer, for example, the reversing
lamps may fail as a result of overloading.
Connecting cables and compressed-air lines
* NOTE Damage to cables and
compressed-air lines
If cables and compressed-air lines are not
sufficiently slack when cornering, this can
lead to damage.
The cables and compressed-air lines may
come under tension, kink or rub against other
components.
Pay attention to the voltage of consum‐
#
ers in the trailer when connecting
cables.
Keep the hydraulic lines such that they
#
can manage all movements when cor‐
nering etc. without tensioning, kinking
or rubbing.
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