C9.3 Engines for Caterpillar Built Machines Diesel Particulate Filter - Remove and Install - Diesel Oxidation Catalyst, Clean Emissions Module Caterpillar

Removal Procedure

Start By:

1. Remove the Soot Antenna.

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Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.

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Wear goggles, gloves, protective clothing, and a National Institute for Occupational Safety and Health (NIOSH) approved P95 or N95 half-face respirator when handling a used Diesel Particulate Filter or Catalytic Converter Muffler. Failure to do so could result in personal injury.

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Illustration 1	g02178145

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Illustration 2	g02178157
View from below clamp assembly (6).

1. Loosen clamp assembly (6).

2. Disconnect temperature sensor (3) and tube assembly (5).

3. Loosen clamp assembly (1) and slide the clamp assembly away from catalyst (4).

4. Disconnect clamp assembly (2) and use Tooling (A) in order to remove diesel oxidation catalyst (4). The weight of the diesel oxidation catalyst is approximately 21 kg (46 lb).

5. Discard clamp assembly (1).

Installation Procedure

1. Install the diesel oxidation catalyst (4) in reverse order.

   1. Install new clamp assembly (1). Tighten clamp assembly (1) to a torque of 50 ± 1 N·m (37 ± 1 lb ft). Do not use power tools in order to tighten clamp assembly (1).
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      Illustration 3	g02178157
      View from below clamp assembly (6).

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      Illustration 4	g02178059
      Cutaway view of clamp assembly (6) in position on the assembly.

   2. Verify that the cup of the ball joint (G) does not touch the radius of the ball (F). Position ball clamp (6) and hand tighten ball clamp (6). Ball Clamp (6) should be in the center of the joint. Dimension (C) and Dimension (D) should be equal within 2 mm (0.08 inch). Repeat the measurements every 90° around ball clamp (6). If necessary, adjust ball clamp (6). Do not use power tools in order to torque clamp assembly (6). Torque ball clamp (6) to a torque of 35 ± 2 N·m (26 ± 1 lb ft).
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      Illustration 5	g02178066

   3. Apply Tooling (D) to the threads of clamp assembly (2) for a Distance (X). Distance (X) is 25 mm (1 inch) above the trunnion. Use hand tools in order to tighten clamp assembly (2). Tighten clamp assembly (2) to a torque of 16.5 ± 1.5 N·m (146 ± 13 lb in).

   4. Tighten temperature sensor (3) and soot sensor (6) to a torque of 45 ± 5 N·m (33 ± 4 lb ft).