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TC Series Hydraulic Brake ABS System

030.1-7

Component Removal and Installation

Sensors

•

Sensor Lubrication Specification

Meritor WABCO specifications require a sensor

lubricant to have the following properties.

1. Lube must be mineral oil-based and contain

molydisulfide.

2. Lube should have excellent anti-corrosion and

adhesion properties, and be capable of

continuous function in a temperature range of

3. –40° to +300° Fahrenheit.

Wheel Speed Sensor Replacement – Front

Axle

Removal

CHOCK THE WHEELS TO PREVENT

THE VEHICLE FROM MOVING.

SUPPORT THE VEHICLE WITH SAFETY

STANDS. DO NOT WORK UNDER A

VEHICLE SUPPORTED ONLY BY JACKS.

TO AVOID DAMAGE TO THE

ELECTRICAL SYSTEM OR ABS

COMPONENTS, WHEN WELDING ON AN

ABS-EQUIPPED VEHICLE DISCONNECT

THE POWER CONNECTOR FROM THE

ECU.

1. Apply the parking brakes. Chock the rear tires

to prevent vehicle movement.

2. Disconnect the fasteners that hold the sensor

cable to other components.

3. Disconnect the sensor cable from the chassis

harness.

4. Remove the sensor from the sensor holder.

5. Twist and pull the sensor to remove from the

sensor bracket, see Figure 2—Knuckle Mounted

Sensor.

Figure 2—Knuckle Mounted Sensor

Knuckle Mounted Sensor Installation

1. Connect the sensor cable to the chassis harness.

2. Install the fasteners used to hold the sensor cable

in place.

3. Apply a Meritor WABCO recommended

lubricant to the sensor spring clip and sensor.

4. Install the sensor spring. Make sure the spring

clip tabs are on the inboard side of the vehicle.

5. Push the sensor spring clip into the bushing in

the steering knuckle until the clip stops.

6. Push the sensor completely into the sensor

spring clip until clip contacts the tooth wheel.

7. Fasten the sensor cable with tie wraps every 12

inches. Properly bundle and store excess cable

in the sub frame, see Figure 2.1—Bundle Excess

Cable.

Figure 2.1—Bundle Excess Cable