8
TEBS E
Installation notes
for vehicle installation and retrofitting
150
8.5
Installation height sensor
Height sensor with extension and linkage
Height sensor 441 050 100 0 is used to both measure the normal level for vehicles
with electronic air suspension (ECAS functions) and for determining the axle load
with mechanical suspension.
– Install the height sensor in such a way that the two mounting holes are horizon-
tal and facing upward.
A lever is used for linking the height sensor lever.
The maximum excursion of the lever ± 50° may not be exceeded.
The length of the height sensor lever can be set.
– On vehicles with long compression travel, use a longer lever.
The lever length should be chosen so that the entire suspension path of the
frame utilises a deflection of at least ±30°.
It is important that the height sensor always moves freely across its operating
range, and that the lever can only move in the way intended.
The height sensor and the level both have a fastening hole (4 mm) for locking
the lever into the optimum position for the normal level.
The linkage for the height sensor should be fastened so that the lever is hori-
zontal at normal level.
The connection to the axle may be achieved by means of the linkage.
The rubber link of the lever should be connected by a 6 mm rod (solid) to the
linkage on the axle.
ECAS vehicles
Diagram, see chapter 12.4 ‘GIO diagram’, page
.
1-point control
– Move the height sensor to the middle of the main axle to prevent damage to the
height sensor when travelling around curves with large vehicle inclination.
2-point control
– On drawbar trailers, move the height sensor to the middle of the front axle and
rear axle to prevent damage to the height sensor when travelling around cor-
ners with a large vehicle inclination.
On semitrailer vehicles, move the height sensors as far away to the left and
right of the vehicle centre as possible. Make sure that damage cannot be
caused when cornering.
Drawbar trailer
Semitrailer
Height sensor ‘rear axle left’
Rear
Left
Height sensor ‘front axle right’
Front
Right
