1 Introduction
7
Meritor WABCO Maintenance Manual MM-0112 (Revised 07-05)
Figure 1.6
ABS Sensors
ABS sensor systems consist of a tooth wheel mounted on the hub of
each monitored wheel and a sensor installed so that its end is
against the tooth wheel. The sensor continuously sends wheel
speed information to the ECU. A sensor clip holds the sensor in
place at the tooth wheel.
The type of axle determines sensor mounting location.
앫 Steering axle sensors are installed in the steering knuckle or in a
bolted-on bracket.
앫 Drive axle sensors are mounted in a block attached to the axle
housing or in a bolted-on bracket.
Check the wheel speed sensors for correct alignment and apply
lubricant to the sensor and sensor clip whenever wheel-end
maintenance is performed. Refer to Section 3 and Section 4.
Figure 1.6
1002007e
REAR ABS
VALVE PACKAGE
WHEEL
SPEED SENSORS
FRONT ABS
VALVE PACKAGE
ECU
WHEEL
SPEED SENSORS
4S/4M CONFIGURATION — ABS ONLY
ELECTRICAL LINES
AIR LINES
xxxxx xxxxx
xxxxx xxxxx
472 500 30. 0
MADE IN GERMANY
001 20/98
LAMPS