ROAD OPERATIONS
Operating instructions • Semitrailer • 505369471-04 • 02/2019
123
► Remove the wheel chocks and prop-
.
► Disengage the parking brake on the
(see "5.8.2 Parking brake", pg. 40)
► Check for clearance:
Clearance
Requirement
Bending angle to
the left and the
right
Max. 90°
Tilt angle
Max. 6° to the front, max.
7° to the rear
Swing radius
There must be sufficient
distance between the rear
wall of the driver's cab on
the tractor and the trailer.
The two vehicles should
not come into contact
when turning a corner.
Supply lines
The supply lines must
hang freely. They may not
hang too low and rub, nor
be pulled too tight when
cornering.
► Carry out a departure check
Commissioning before each trip", pg. 121)
.
ü
The trailer is coupled and ready to
drive.
Uncoupling
► Lower the trailer's air suspension down
.
► Park the trailer on a load-bearing and
level surface.
► Position the semitrailer as stretched as
possible.
► Apply the parking brake on the trailer
(see "5.8.2 Parking brake", pg. 40)
.
► Use the wheel chocks to prevent the
.
► Lift the trailer with the tractor unit's air
suspension.
► Support the trailer with the landing leg
winches
(see "5.2 Landing leg winches",
► Disconnect the supply and control
lines
(see "5.6 Supply and control connec-
► To compensate for the length of the
overall combination, briefly release the
parking brake on the trailer.
► Prepare and unlock the semitrailer
coupling on the tractor unit.
► Observe the operating instructions for
the tractor unit and the semitrailer
coupling.
► Slowly drive the tractor unit out by ap-
prox. 30 cm.
► Lower the tractor unit's air suspension
by 5 - 10 cm.
► Fully drive the tractor unit out.
► If necessary, lower the lift axle.
ü
The trailer is uncoupled.
► After uncoupling, set the air suspen-
sion of the tractor unit to the driving
position.
7.3
Manoeuvring the trailer
without a connected com-
pressed air supply
INFO
Manoeuvring without a connected com-
pressed air supply is only permissible in
exceptional cases.
To manoeuvre the trailer without a connec-
ted compressed air supply, the service
brake
(see "5.8.1 Service brake", pg. 40)
be released.