RUNNING GEAR OPERATION
42
Operating instructions • Load Carrier • 505410638-02 • 07/2019
Fig. 5-27:
Example pictogram of electronic-
ally controlled air suspension
To prevent chassis damage, the version
with the lifting-lowering valve with auto-
matic ride height resetting automatically
sets the trailer back to the driving position
when the vehicle speed exceeds 15 km/h.
NOTE
Driving with the wrong lifting height
causes material damage!
Driving at the minimum or maximum lifting
height on an electronically controlled air
suspension can cause material damage to
the trailer.
► Do not drive at the minimum or max-
imum lifting height.
CAUTION
Risk of accidents due to tipping move-
ments!
If there is an improper power interruption,
this may, among other things, result in the
valve switching states being unclear on
electronically controlled air suspension
systems. Unclear valve switching posi-
tions can result in tipping movements in
the longitudinal direction of the loading
surface on lift axle controls. These are es-
pecially dangerous when using a forklift to
load or unload from the rear.
► Properly shut down the entire elec-
tronic system before hitching and un-
hitching the trailer.
► Before disconnecting the supply lines
(compressed air, vehicle electronics
and ISO-7638 EBS power supply),
switch the ignition in the tractor to
"off" (terminal 15 = de-energised).
Optionally, KRONE trailers can also be fit-
ted with a system for electronically con-
trolled air suspension, e.g. via Wabco's
ECAS system. It electronically controls the
vehicle's ride height if there is a power sup-
ply and an adequate compressed air sup-
ply.
KRONE trailers with electronically con-
trolled air suspension can be optionally
equipped with various electronic control
devices (control box, SmartBoard, elec-
tronic buttons, etc.).
Fig. 5-28:
Example of a control box (Wabco)
