Encoder Motor Sensor Replacement

Encoder Motor Sensor Replacement
Removal Procedure

Important: For ease of reassembly, shift the transfer case to Neutral prior to removing any components.





1. Remove the encoder motor.
2. Place the encoder motor on a clean work bench.
3. Remove and discard 2 screws (2) from the motor cover.
4. Remove and discard 2 screws (1) from the casting.
5. Remove the cover.
6. Remove and save the shim on the output gear.
7. Remove and discard the orange rubber seal from the cover.





8. Remove the output gear (1).





9. Disassemble the harness connector (1) from the encoder.
10. Remove the encoder from the output shaft using a flat-tipped screwdriver.

Installation Procedure





1. Assemble the harness to the NEW encoder with the connector legend -TOP- (1) and the encoder part number facing up.
2. Assemble the output shaft into the encoder being sure to align the encoder tab with the groove on the shaft.
3. Ensure the encoder is seating properly on the output gear.
4. Place the output shaft/encoder on the casting.
5. Place the grommet harness on the casting slot, the flat area on the grommet will be facing up.





6. With the output gear/encoder assembly in hand, carefully align the casting and output gear timing marks (1).





7. At the same time be sure to align the encoder phasing post (1) with the phasing slot (2) in the casting and insert the shaft into the bushing.
8. Verify that the output gear and idler gear are engaged properly.
9. Seat the harness wires on the casting channel.
10. Place the shim on the output shaft gear.
11. Press a NEW seal into the cover.





12. Install the cover.

Notice: Refer to Fastener Notice in Service Precautions.

13. Install 2 NEW screws (1) to the casting.
^ Tighten the screws to 2 Nm (18 inch lbs.).
14. Install 2 NEW longer screws (2) to the motor cover.
^ Tighten the screws to 3 Nm (26 inch lbs.).
15. Install the encoder motor.