725C Articulated Truck Caterpillar

Removal Procedure

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Illustration 1	g03674131

1. Disconnect tube assembly (1).
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   Illustration 2	g03674172

2. Disconnect hoses (2).
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   Illustration 3	g03674194

3. Disconnect tube (3).
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   Illustration 4	g02377458

4. Disconnect hose assemblies (4) and (5).
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   Illustration 5	g02377876

5. Remove four nuts (7) and remove turbocharger (6). Discard nuts (7) and remove the gasket.
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   Illustration 6	g02377938

   Note: Band clamps (8), (9), and (10), are one time use parts. Discard the clamp assemblies if the clamps are loosened.

6. Remove band clamp (8) in order to separate the adaptor from the turbine housing. Discard band clamp (8).

7. Remove band clamp (9) in order to separate the turbine housing from the cartridge assembly. Discard band clamp (9).

8. Remove band clamp (10) in order to separate the compressor housing from the cartridge assembly. Discard band clamp (10).

9. Remove adapters (11) from the cartridge assembly.

Installation Procedure

Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.

1. Install turbocharger (6) in the reverse order of removal.

   1. Install new band clamp (9). Tighten band clamp (9) to a torque of 18 N·m (159 lb in). Loosen band clamp (9) and retighten the clamp to a torque of 13.6 ± 1.2 N·m (120 ± 11 lb in).

   2. Install new band clamp (10). Tighten band clamp (10) to a torque of 13.6 ± 1.2 N·m (120 ± 11 lb in).

   3. Install new band clamp (8). Tighten band clamp (8) to a torque of 12 ± 4 N·m (106 ± 35 lb in).

   4. Apply Tooling (A) to the threads of new nuts (7) prior to installation.

   5. Tighten nuts (7) to a torque of 70 ± 5 N·m (52 ± 4 lb ft).

   6. Put clean engine oil in the oil inlet of the turbocharger after assembly or before installation. This action will provide lubrication during start-up and during storage.