3406B (PEEC III) TRUCK ENGINE Caterpillar


Fuel Rack Controls

Usage:


Side View Of Governor And Fuel Injection Pump Group

(1) Shutoff solenoid (energized to run). Tighten to ... 70 ± 10 N·m. (50 ± 7 lb ft).

(2) Fuel rack servo valve.

(3) Shutoff lever group.

(4) Manual shutoff. Shut off override shaft and lever assembly.

(5) Clearance between cam retainer (6) and speed sensor (8) ... 0.76 ± 0.15 mm (.030 ± .006 in)

NOTE: This distance is set by turning speed sensor into threads until magnet is against the gear tooth while the engine is stopped. Now, back speed sensor out 1/2 turn ± 30° and tighten the nut to a torque of ... 13.5 ± 1 N·m (10 ± 1 lb ft)

(6) Cam retainer.

(7) 1N3801 Spring.

Length under test force ... 26.33 mm (1.037 in)

Test force ... 4.45 ± 0.22 N (1.000 ± .050 lb)

Free length after test ... 49.29 mm (1.940 in)

Outside diameter ... 11.32 mm (.446 in)

(8) Speed sensor.

(9) Oil pressure sensor.

(10) Boost pressure sensor.

(11) Transducer module.


Top View Of Governor Housing

(12) Fuel rack.

(13) Magnet.

(14) Rack position sensor. See Testing and Adjusting section for correct installation.

(15) O-ring seal.

(16) Nut. Tighten to a torque ... 55 ± 7 N·m (41 ± 5 lb ft)

(17) Adjusting collar.

(18) Spring.

(19) O-ring seal.

(20) Rack Solenoid (BTM).

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