3606, 3608, 3612, 3616 and 3618 Engines Tachometer Caterpillar

Speed Sensor

The engine speed sensor sends the engine speed signal to the tachometer.

Illustration 1	g00562936

1. Adjust the sensor's clearance from the flywheel.

   1. The engine is secured. Install the sensor until the sensor contacts the flywheel.

   2. Back off the sensor (2.5 ± 0.1 turns).

   3. Measure clearance between the flywheel and the electronic sensor (1). The clearance should be 1.55 mm (0.061 inch) to 1.83 mm (0.072 inch).

2. Tighten locknut (2) to a torque of 45 ± 7 N·m (33 ± 5 lb ft).