Krone Profi Liner - Page 33

RUNNING GEAR OPERATION
Operating instructions • Semitrailer • 505369471-04 • 02/2019
33
► Use the wheel chocks to prevent the
trailer from rolling away (see "5.1 Using
wheel chocks", pg.24).
► Check the attachment and wear of the
kingpin.
► Set the height of the semitrailer coup-
ling using the tractor unit's air suspen-
sion. The coupling plate must be ap-
prox. 50 mm higher than the coupling
plate.
► Prepare and unlock the semitrailer
coupling on the tractor unit.
► Drive the tractor unit toward the centre
until it is approx. 30cm away from the
kingpin.
► Raise the tractor unit's air suspension
until the coupling plate and the
semitrailer plate touch. Do not raise
the semitrailer in doing so!
► Continue to drive the tractor centrally
until the lock engages with the
semitrailer coupling.
► Put the tractor unit's air suspension in
the driving position.
► Perform the start-up test in low gear.
► Apply the parking brake on the tractor
unit.
► Perform a visual inspection:
○ The semitrailer plate must lie against
the semitrailer coupling without an air
gap.
○ The semitrailer coupling must have
locked properly.
► Secure the semitrailer coupling with its
securing device.
► Connect the supply and control lines
(see "5.6 Supply and control connections",
pg.35).
► Retract the landing leg winches (see
"5.2 Landing leg winches", pg.25).
► Put the trailer's air suspension in the
driving position (see "5.9 Air suspension",
pg.43).
► Remove the wheel chocks and prop-
erly secure them (see "5.1 Using wheel
chocks", pg.24).
► Disengage the parking brake on the
trailer (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 (see "7.1
Commissioning before each trip", pg.121).
ü The trailer is coupled and ready to
drive.
Uncoupling
► Lower the trailer's air suspension down
to the mechanical limit (see "5.9 Air sus-
pension", pg.43).
► 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
trailer from rolling away (see "5.1 Using
wheel chocks", pg.24).
► Lift the trailer with the tractor unit's air
suspension.