Spicer Single Drive Axles Service Manual: Single Reduction & Single Reduction with Differential Lock - Manual (Page 51)

48
Inter Axle Speed Sensor
Ser
vice Procedure
Install Inter-Axle Speed Sensor
Except for routing the wires between the sensor and the
plated connector, procedures for installing both drive axle
speed sensors are identical. The instructions which follow
cover the long arm (plain half) side speed sensor and require
careful routing of the 6 inch long connector wires to prevent
pinching between the head and housing.
1 - Wires seated in channel
2 - Connector hole is on carrier mounting surface
3 - 6 inch long wires
4 - Sensor terminals positioned near carrier mount-
ing surface
Procedure -
1. Lubricate interior rotor with axle lube or grease.
Check that the rotor turns freely by hand.
2. Mate the rotor and the sensor assembly.
3. Align the sensor/rotor assembly with the face of the
adjuster so the terminals are nearest the carrier
mounting surface.
4. Orient the sensor to line up the holes in the sensor
with the threaded holes in the adjuster. Rotate the
sensor in either direction to get the fit that keeps the
terminals near the carrier mounting surface. This
final adjustment should only require a slight shift in
sensor position.
5. Apply Loctite to the four mounting screws. Install
the screws and tighten in a “star” pattern to maintain
sensor alignment. Torque to 28–32 in.lbs. (3.2–3.6
N•m). (A preferred tightening approach is the “turn
of bolt” method: torque screws finger tight then
tighten additional 1/4 turn).
6. Attach the two round terminals to sensor. Either wire
can connect to either sensor blade. Make sure termi-
nals are not bridged and connectors are not touch-
ing. Torque to 10–15 in.lbs. (1.1–1.7 N•m).
7. Before sealing wires in place, check sensor continu-
ity by measuring the resistance between pins on the
outside of the connector. Resistance between con-
nector pins should be 1125 to 1375 ohms.
8. Check wire routing. Make sure wire is seated in the
cast-in channel and will not get pinched when the
head is reassembled to the housing. Seal wire in
place with RTV.
9. To replace sensor on the short arm (flanged half)
side, repeat previous steps. Since connector location
is inside the mounting surface, there is less concern
for pinching of the shorter 4 inch connector wires.
However, before final assembly, check wire position
and routing to make sure it is not crimped or
pinched.
1 - Installed position of axle shaft
2 - Sensor terminals positioned near connector hole
3 - Axle housing
4 - 4 inch long wires
5 - Connector hole is not on carrier mounting sur-
face
6 - Axle carrier
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