BENDIX EC-60 ABS-ATC STD-PREM CONTROLLERS Introduction Manual page 34

WS-24 ™ Speed
Sensor (90 Deg.)
™
FIGURE 15 - WS-24 WHEEL SPEED SENSOR INSTALLATION
Wheel Speed Sensor Wiring
Route sensor wiring coming out of the wheel ends away
from moving brake components. Sensor wiring needs to
be secured to the axle to prevent excess cable length and
wiring damage. It is required that cable ties be installed to
the sensor wire within 3 inches (76.2 mm) of the sensor
head to provide strain relief.
Following the axle, the sensor wires must be attached along
the length of the service brake hoses using cable ties with
ultraviolet protection and secured every 6 to 8 inches (152
to 203 mm). Sufficient – but not excessive – cable length
must be provided to permit full suspension travel and steering
axle movement. Install wires so that they cannot touch
rotating elements such as wheels, brake discs or drive
shafts. Radiation protection may be necessary in the area
of brake discs.
34
Troubleshooting: Wiring
Speed Sensor
Mounting Block
100 Tooth (typical)
Speed Sensor
Exciter Ring
Hub Assembly
(Continued)
Mounting
Block
Brake Drum
Clamping
Bendix does not recommend using standard tie-wraps to
secure wiring harnesses directly to rubber air lines. This
may cause premature wiring failure from the pressure exerted
on the wiring when air pressure is applied through the air
line. Non-metallic hose clamps or bow-tie tie-wraps are
preferred.
The use of grommets or other suitable protection is required
whenever the cable must pass through metallic frame
members.
All sensor wiring must utilize twisted pair wire, with approx-
imately one to two twists per inch.
It is recommended that wires be routed straight out of a
connector for a minimum of three inches before the wire is
allowed to bend.
Max. Gap
(Sensor to Exciter)
.015 Inches
WS-24 ™ speed
sensor
90° Speed
Sensors
Sensor
Straight Speed
Sensors
Sleeve
100 Tooth
Exciter
Ring