3116 and 3126 Truck Engines Alternator – Remove and Install

Removal Procedure


Illustration 1 g00609523

Typical Example

Note: Release the tension on the belt at the belt tightener, if the engine is not equipped with a belt tensioner.

1.Use Tooling (A) to release the tension on belt tensioner (5) .

2.Remove drive belt (4) from the drive pulley on alternator (3) .

3.Place an index mark on the wires of harness assembly (1) that are connected to the alternator. Disconnect harness assembly (1) from the alternator.

4.Remove bolts (2) .

5.Remove alternator (3) from the mounting bracket.

Installation Procedure

Illustration 2 g00609523

Typical example

1.Position alternator (3) on the mounting bracket. Install bolts (2) .

2.Use Tooling (A) to install drive belt (4) on the drive pulley of the alternator.
Note: Adjust the tension on the drive belt if the engine is not equipped with a belt tensioner. Refer to the Operation and Maintenance Manual for the correct adjusting procedure.

3.Connect harness assembly (1) to the alternator. Use the index marks to correctly connect the harness assembly. Tighten the mounting bolt for the ground wire to a torque of 6.2 ± 0.6 N·m (54 ± 5 lb in). Tighten the mounting bolt for the battery wire to a torque of 11.3 ± 2.3 N·m (100 ± 20 lb in).

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