3408C & 3412C INDUSTRIAL ENGINES Caterpillar


Sensors

Usage:

Temperature Sensor

Coolant Temperature Sensor

(1) Sensor assembly.

(2) Receptacle (with Pins A, B, and C).

Pressure Sensor

Oil Pressure Sensor Boost Pressure Sensor

(1) Sensor assembly. Final installation tighten to a torque of ... 10 ± 2 N·m (7 ± 2 lb ft)

(2) Receptacle (with Sockets A, B, and C).

Atmospheric Pressure Sensor

(1) Sensor assembly. Final installation tighten to a torque of ... 10 ± 2 N·m (7 ± 2 lb ft)

(2) Receptacle (with Sockets A, B, and C).

Throttle Sensor

(1) Control assembly.

(2) Plug (with sockets A, B, C, D and plug E).

Rack Position Sensor

(1) Control assembly.

(2) Plug (with pins A, B, C and D).

Digital Speed Sensor

With engine stopped, align the centerline of the ring gear tooth being used with the centerline of the speed sensor access hole. Install the speed sensor in the access hole and turn until the face contacts the ring gear tooth. Then back the sensor out 195 ± 15 degrees.

(1) Final installation tighten the locknut to a torque of ... 13.5 ± 1.0 N·m (10 ± .7 lb ft)

The clearance between the ring gear tooth and the speed sensor must be 0.61 to 0.91 mm (.024 to .036 in).

(2) Receptacle (with pins A, B and C).

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