3406B DIESEL TRUCK ENGINE Caterpillar


Governor

Usage:

(1) Setscrew. Adjustment for fuel ratio control.

(2) Nut. Tighten to a torque of ... 1.70 ± 0.25 N·m (15 ± 2 lb in)

(3) Lever for manual shutoff.

(4) Setscrew. Adjustment for dimension (6).

(5) Nut. Tighten to a torque of ... 1.70 ± 0.25 N·m (15 ± 2 lb in)

(6) Dimension at shutoff. With manual shutoff lever (3) at the maximum shutoff position, the distance from the end of the lever assembly to the face of the rear governor housing must be ... 28.8 ± 0.5 mm (1.13 ± .02 in)

NOTE: Make sure setscrew (4) is adjusted to give dimension (6) at assembly.

(7) Setscrew. This setscrew is used for the adjustment of dimension (6) on engines that use a shutoff detent.

NOTE: Setscrew (7) is not functional on truck engine arrangments. Make sure nut (8) is tightened to the correct torque to hold setscrew (7) in position.

(8) Nut. Tighten to a torque of ... 1.70 ± 0.25 N·m (15 ± 2 lb in)

(9) Broken link spring. See the Miscellaneous Spring Chart.

(10) Torque for screws ... 3.4 ± 0.5 N·m (31 ± 4 lb in)

(11) Spring to center or preload the flyweights. See the Miscellaneous Spring Chart.

(12) Dashpot spring. See the Miscellaneous Spring Chart.

(13) Governor spring. See the Governor Spring Chart.

(14) Overfueling spring (if equipped). See the Miscellaneous Spring Chart.

(15) Tighten the insulated terminal in governor housing to a torque of ... 3.4 ± 0.5 N·m (31 ± 4 lb in)

(16) Setscrew. Adjustment for torque rise setting.

(17) Setscrew. Adjustment for fuel setting.

(18) Nut. Tighten the nut on setscrews (16) and (17) to a torque of ... 1.70 ± 0.25 N·m (15 ± 2 lb in)

(19) Bumper spring. See the Miscellaneous Spring Chart.

(20) Lever. Install the shutoff lever as illustrated. Angle (A) and angle (B) from the vertical centerline must be ... 30°

(21) Guide. The distance from the end of the guide to the housing gasket surface is dimension (C) ... 11.80 ± 0.25 mm (.464 ± .010 in)

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