C12.9 Marine Engines Caterpillar

Start By:

1. Remove Clutch (Supercharger)

Removal Procedure

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Illustration 1	g06038462

1. Remove cable assembly (1), cable assembly (2), and cable assembly (3).
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   Illustration 2	g06011217

2. Loosen clamp (4). Loosen collar (6) and remove pipe assembly (5).
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   Illustration 3	g06037969

3. Remove clamps (7). Remove bolt (8). Remove pulley (9) and belt tensioner assembly (10).
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   Illustration 4	g06038110

4. Remove nut (11). Remove Bolt (13) and bracket (12). Remove tube assembly (14).
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   Illustration 5	g06038148

5. Remove pulley (16) and bolt (15). Remove bolts (17) and bolts (22). Remove bolt (18), bolt (19), and bolt (20). Remove support (21).
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   Illustration 6	g06038166

6. Remove nut (23) and bolt (25). Remove alternator assembly (24).

Installation Procedure

1. Install alternator assembly (24) in the reverse order of removal.

   1. Tighten bolt (25) to a torque of 46 ± 5 N·m (34 ± 3 lb ft).

   2. Tighten bolts (20), (19), (18), and (15) to a torque of 75 ± 8 N·m (55 ± 6 lb ft).

   3. Tighten bolt (17) to a torque of 23 ± 2 N·m (204 ± 20 lb in).

   4. Tighten belt tensioner assembly (10) to a torque of 62 ± 5 N·m (46 ± 4 lb ft).

   5. Tighten pulley (9) to a torque of 45 ± 5 N·m (33 ± 4 lb ft).

   6. Tighten clamps (7) to a torque of 3 ± 0.25 N·m (29 ± 2 lb in).