New Holland 12628: Left Rear Wheel Speed Sensor - Air Gap (Signal Missing)

The left rear wheel speed sensor is not providing a signal due to an incorrect air gap. This may result in improper speed readings and affect the performance of the tractor's systems that rely on wheel speed data.

1. 1

   The air gap between the sensor and the target

2. 2

   The position of the left rear wheel speed sensor

3. 3

   The integrity of the sensor wiring and connections

1. 1

   Measure the air gap

   Use a feeler gauge to measure the air gap between the left rear wheel speed sensor and the target. Compare the measurement to the specifications provided in the service manual.

2. 2

   Adjust the sensor position

   If the air gap is not within the specified range, adjust the position of the left rear wheel speed sensor to achieve the correct gap.

3. 3

   Verify the signal

   After adjustments, check if the signal from the left rear wheel speed sensor is now being received correctly by the system.