SCREW 3153647 - Caterpillar

Illustration 1 g00845023
(1) Speed sensor for the governor
(2) Speed sensor for the service meter
Remove the speed sensors from the flywheel housing. Inspect the condition of the ends of the sensors. Check for signs of wear and contaminants.
Clean the metal shavings and other debris from the faces of the sensors.
Illustration 2 g00318744
Speed sensor
Install the speed sensor in the flywheel housing. Turn the sensor clockwise until the sensor contacts the teeth of the flywheel ring gear.
Turn the sensor 1/2 of a turn (180 degrees) counterclockwise. Maintain a clearance of 0.56 mm (.022 inch) to 0.84 mm (.033 inch) between the sensor and the teeth of the flywheel ring gear. Tighten the locknut to 45 7 N m (33 5 lb ft).