C12.9 Marine Engines Caterpillar

Removal Procedure

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Illustration 1	g06031953
View from above the high-pressure turbocharger.

1. Remove nuts (1). Remove bolts (2) and remove heat shield (3).
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   Illustration 2	g06032029

2. Remove nut (4).
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   Illustration 3	g06031637

3. Remove bolts (5) and heat shield (6).
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   Illustration 4	g06032251
   View below the low-pressure turbocharger.

4. Remove bolts (7) and bracket (8).
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   Illustration 5	g06032280

5. Remove bolts (9). Remove heat shield (10).
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   Illustration 6	g06046463

6. Remove bolts (11) and remove heat shield (12).
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   Illustration 7	g06046471

7. Remove clamps (13) and (17). Remove pipe assembly (14). Remove heat shield (15) and heat shield (16).
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   Illustration 8	g06046474

8. Remove gaskets (18) from both ends of pipe assembly (14).
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   Illustration 9	g06047112

9. Remove bolts (19) and nuts (20). Remove heat shield (21).
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   Illustration 10	g06047129

10. Remove bolt (22) and plate (23).
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    Illustration 11	g06048372

11. Remove bolts (24) and remove heat shield (25).
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    Illustration 12	g06048432

12. Remove bolts (27) and disconnect tube assembly (26). Remove tube assembly (28).
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    Illustration 13	g06048705
    View below the turbocharger.

13. Remove P-clip (29). Remove tube assembly (26).
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    Illustration 14	g06048766
    View above the turbocharger.

14. Remove tube assembly (30).
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    Illustration 15	g06048776

15. Remove clamps (31) and boot assembly (32). Remove clamp (33).
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    Illustration 16	g06048828

16. Remove bolts (34) and disconnect tube assembly (35). Remove bolts (36) and remove turbocharger (37).

Installation Procedure

1. Install turbocharger (38) in the reverse order of removal.

   1. Tighten nuts (37) to a torque of 71 ± 7 N·m (52 ± 5 lb ft).

   2. Tighten nuts (36) to a torque of 42 ± 4 N·m (30.97752 ± 2.95024 lb ft).

   3. Tighten bolts (34) to a torque of 23 ± 2 N·m (204 ± 18 lb in).

   4. Tighten clamp (33) to a torque of 6 ± 0.6 N·m (53 ± 5 lb in).

   5. Tighten clamps (31) to a torque of 11 ± 1 N·m (97 ± 9 lb in).

   6. Tighten tube assembly (30) to a torque of 30 ± 3 N·m (266 ± 27 lb in).

   7. Tighten P-clip (29) to a torque of 9 ± 1 N·m (80 ± 9 lb in)

   8. Tighten tube assembly (28) to a torque of 30 ± 3 N·m (266 ± 27 lb in).

   9. Tighten bolts (27) to a torque of 25 ± 2.5 N·m (221 ± 22 lb in).

   10. Tighten tube assembly (26) to a torque of 60 ± 6 N·m (44 ± 4 lb ft).

   11. Tighten clamp (17) to a torque of 20 ± 2 N·m (177 ± 18 lb in).

   12. Tighten clamp (13) to a torque of 20 ± 2 N·m (177 ± 18 lb in).