Bendix Commercial Vehicle Systems WS-24 ANTILOCK WHEEL SPEED SENSOR - Manual (Page 3)

3
FIGURE 6 - WS-24 ™ WHEEL SPEED
SENSOR INSTALLATION
SPEED SENSOR MOUNTING
BLOCK
100 TOOTH
(TYPICAL) SPEED
SENSOR EXCITER
RING
WS-24 ™ SPEED
SENSOR (90 DEG.)
HUB ASSEMBLY
BRAKE DRUM
PREVENTIVE MAINTENANCE
1. Every 3 months; 25,000 miles; 900 operating hours; or
during the vehicle chassis lubrication interval, make the
visual inspections noted in "SERVICE CHECKS" below.
2. Every 12 months; 100,000 miles; or 3600 operating
hours, perform the OPERATIONAL TEST in this manual.
SERVICE CHECKS
Check all wiring and connectors. Make sure connections
are free from visible damage.
Examine the sensor. Make sure the sensor, mounting
bracket, and foundation brake components are not
damaged. Repair/replace as necessary.
WARNING! PLEASE READ AND FOLLOW
THESE INSTRUCTIONS TO
AVOID
PERSONAL INJURY OR DEATH:
When working on or around a vehicle, the following
general precautions should be observed at all times.
1. Park the vehicle on a level surface, apply the parking
brakes, and always block the wheels. Always wear
safety glasses.
2. Stop the engine and remove ignition key when
working under or around the vehicle. When working
in the engine compartment, the engine should be
shut off and the ignition key should be removed.
Where circumstances require that the engine be in
operation, EXTREME CAUTION should be used to
prevent personal injury resulting from contact with
moving, rotating, leaking, heated or electrically
charged components.
3. Do not attempt to install, remove, disassemble or
assemble a component until you have read and
thoroughly understand the recommended
procedures. Use only the proper tools and observe
all precautions pertaining to use of those tools.
4. If the work is being performed on the vehicle’s air
brake system, or any auxiliary pressurized air
systems, make certain to drain the air pressure from
all reservoirs before beginning ANY work on the
vehicle. If the vehicle is equipped with an
AD-IS
™ air dryer system or a dryer reservoir module,
be sure to drain the purge reservoir.
5. Following the vehicle manufacturer’s recommended
procedures, deactivate the electrical system in a
manner that safely removes all electrical power from
the vehicle.
6. Never exceed manufacturer ’s recommended
pressures.
7. Never connect or disconnect a hose or line
containing pressure; it may whip. Never remove a
component or plug unless you are certain all system
pressure has been depleted.
8. Use only genuine Bendix ® replacement parts,
components and kits. Replacement hardware,
tubing, hose, fittings, etc. must be of equivalent size,
type and strength as original equipment and be
designed specifically for such applications and
systems.
9. Components with stripped threads or damaged
parts should be replaced rather than repaired. Do
not attempt repairs requiring machining or welding
WS-24 ™ SPEED
SENSOR
100 TOOTH
EXCITER
RING
MOUNTING
BLOCK
MAX. GAP
(SENSOR TO EXCITER)
.015 INCHES