RUNNING GEAR OPERATION
36
Operating instructions • Load Carrier • 505410638-02 • 07/2019
!
WARNING
Risk of accident due to insufficient air
supply pressure!
If the air supply pressure is < 4.5 bar, the
trailer can no longer be stopped using the
service brake. If the pressure is < 2.5 bar
on the red coupling head, the trailer will
automatically be stopped via the spring
storage.
► As soon as the warning display/warn-
ing lamp lights up (red and yellow),
stop the trailer and park at a suitable
location.
► Check the pressure supply and call a
repair service if necessary.
!
WARNING
Risk of accident due to pressure loss
inside the brake system!
Pressure loss in the brake system due to
a leak causes a deterioration in the ser-
vice brake's effectiveness until the parking
brake is automatically activated. Uninten-
ded vehicle movement can cause an acci-
dent.
► For extended stops, additionally se-
cure the trailer from rolling away by
using the parking brake and wheel
chocks.
► Have an authorized specialist work-
shop eliminate the leaks.
INFO
The brake system equipment on the trailer
is state of the art. The equipment level of
the brake equipment on the tractor unit
depends on the manufacturer and type.
Likewise, the coupling force controllers of
the tractor units in relation to the trailer
braking and the control system limits also
differ. It is therefore sensible to observe
the braking behaviour of the tractor com-
bination and to adjust it if necessary.
INFO
The trailer may only be towed by tractor
units that ensure the effectiveness of the
EBS system. The EBS system includes
the ABS function (automatic anti-lock sys-
tem ABS), the ALB function (automatic
load-dependent braking), and the RSS
function (vehicle stabilization for air-sus-
pended vehicles). Full EBS functionality is
only ensured when used in conjunction
with tractor units equipped with EBS
equipment (ISO 7638 socket, 7-pin).
Also observe the enclosed supplier
documentation.
KRONE trailers are equipped with a brake
system according to the current version of
UN-ECE Regulation 13.
A system check of the electronic brake
system (EBS) is performed upon turning on
the ignition in the tractor unit and during
the trip. Errors in the EBS brake system
are displayed via a warning lamp/warning
display on the tractor unit's dashboard. The
warning lamp/warning display lights up
after turning on the ignition. If no error is
detected, the warning lamp/warning display
turns off after approx. two seconds.
If an error was detected during the last trip
(e.g. sensor error), the warning lamp/warn-
ing display lights up and turns off if the
speed is > 7 km/h.
► If the warning lamp/warning display
does not turn off at the start of the trip
either, have the fault repaired by a
specialist workshop.
The brake system has two independent
brake circuits:
○
Service brake
○
Parking brake