HOLDER A. 2F7509 - Caterpillar

Illustration 1 g00667337
Installation of the speed sensor (1) Speed Sensor (2) Locknut (3) Magnetic Core (4) Gear (5) Flywheel HousingPrior to replacement of the sensor, ensure that the sensor has failed. Always check that the power is available to the sensor. Measure the voltage between the contacts of the sensor. Check for metal shavings on the magnetic tip or the gear teeth.Perform the following procedure in order to replace the speed sensor.
Turn the key start switch and the disconnect switch to the OFF position.
Slowly tighten speed sensor (1) into flywheel housing (5) until magnetic core (3) contacts gear (4) .
Turn speed sensor (1) counterclockwise. The turn should be approximately 3/4 of a rotation.
Tighten locknut (2) to a torque of 25 N m (18.4 lb ft).
Verify that the sensor corrects the problem.