Mainshaft Sensor: Service and Repair

Mainshaft Speed Sensor Replacement

1. Disconnect the connectors from the mainshaft and [1][2]countershaft speed sensors.





2. Remove the bolt securing the mainshaft speed sensor, then remove the mainshaft speed sensor from the end cover.





3. Remove the bolt securing the [1][2]countershaft speed sensor, then remove the countershaft speed sensor (A) and the washer (B) from the transmission housing.
4. Replace the O-rings (C) with new ones before installing the sensors.
5. Install the mainshaft speed sensor, then connect the connector.
6. Install the [1][2]countershaft speed sensor with the washer, then connect the connector.