C280-16 Tier 4 Marine Engine and C280-12 Tier 4 Marine Engine Caterpillar

Removal Procedure

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NOTICE
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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NOTICE
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates.

1. Drain the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
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   Illustration 1	g03820103

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   Illustration 2	g03820105

2. Remove bolts (1) and (3). Remove brackets (2) and cover (4).
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   Illustration 3	g03820106

3. Remove bolts (5), nuts (7), and covers (6).
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   Illustration 4	g03820126

4. Remove nuts (8) and bolts (9).
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   Illustration 5	g03820124

5. Remove bolts (10) and fold flexible shield (11) out of the way.
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   Illustration 6	g03820127

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   Illustration 7	g03820129

6. Remove bolts (12), bolts (14), nuts (13), and shield assembly (15).
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   Illustration 8	g03820130

7. Disconnect the exhaust connection to the turbo. Attach a suitable lifting device to air inlet elbow (17). The weight of air inlet elbow (17) is approximately 30 kg (66 lb).

8. Remove nuts (16) and air inlet elbow (17) from the turbo.
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   Illustration 9	g03820133

9. Remove bolts (18) and bellows assembly (19). Remove the gaskets.
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   Illustration 10	g03820136

10. Remove bolts (21) and (22). Remove bellows assemblies (20) and (23). Remove the gaskets.
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    Illustration 11	g03820137

11. Remove bolts (24) and cover (25).
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    Illustration 12	g03820138

12. Attach Tooling (A) and a suitable lifting device to turbocharger (27). The weight of turbocharger (27) is approximately 715 kg (1576 lb). Remove bolts (26) and remove turbocharger (27). There are six bolts in total.
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    Illustration 13	g03820140

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    Illustration 14	g03820141

13. Release latches (28). Remove bolts (29) and (32). Remove shield assemblies (30) and (31).
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    Illustration 15	g03820142

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    Illustration 16	g03820144

14. Remove bolts (33), (34), and shield assembly (35).
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    Illustration 17	g03820810

15. Remove bolts (36) and shield assembly (37).

Installation Procedure

1. Install turbocharger (27) in the reverse order of removal.

   Note: Apply Tooling (B) to all of the hardware for the exhaust shielding and the turbo shielding prior to installation.

   1. Ensure bellows (20) are installed in the direction of flow as indicated by the arrows.

   2. Apply Tooling (B) to bolts (21).

   3. Tighten bolts (18) to a torque of 120 ± 20 N·m (89 ± 15 lb ft).