Service manual

Group 59 Anti-Lock Brake System (Bendix) Service Procedures
Rear Axle Sensor Replacement
Removal
PERSONAL INJURY HAZARD! Before working on a
vehicle, set the parking brakes, place the transmission
in neutral, and block the wheels. Failure to do so can
result in unexpected vehicle movement and can cause
serious personal injury or death.
1
Park the vehicle on a level surface, ap-
ply the parking brake, and block the
front wheels. Ensure the vehicle igni-
tion is OFF and transmission is in
neutral.
2
Raise the tire with the sensor to be re-
placed off the ground. Place jack
stands under the axle.
3
Release the parking brake and back
off the slack adjuster to release the
brake shoes.
4
Remove the wheel from the axle.
5
Remove the brake drum.
6
CAUTION
Possible sensor damage. DO NOT pull on the sensor
cable in order to remove it. This may damage the sen-
sor.
Note: It may be necessary to wedge a
screwdriver between the tooth wheel
and the sensor in order to loosen it
from its mounting block. Use extreme
care not to damage the tooth wheel or
the sensor.
Using a slight twisting motion, remove
the sensor from its mounting block.
7
Remove the sensor spring clip from
the mounting block.
8
Disconnect any cable ties that hold the
sensor to the brake chamber hose or
frame components.
9
Disconnect the sensor cable from the
chassis harness.
Installation
1
W5000635
1) Spider mounting bolts 4) Spring clip
2) Sensor bracket 5) Tooth wheel
3) Sensor
Note: Spring clip must be installed
with the flange stops facing the in-
board side of the vehicle.
Push the sensor spring clip all the way
into the mounting block.
2
Insert the sensor cable through the
hole in the spider. Route the cable to
the frame rail.
66