C3.3B Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines – Muffler – Remove and Install

Removal Procedure

Start By:

  1. Remove radiator and hydraulic oil cooler.

------ WARNING! ------

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


------ WARNING! ------

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.


------ WARNING! ------

The muffler, catalytic converter/muffler, and diesel particulate filter will become extremely hot during engine operation. A hot muffler, catalytic converter/muffler and diesel particulate filter can cause serious burns. Allow adequate cooling time before working on or near the muffler, catalytic converter/muffler and diesel particulate filter.


    Illustration 1g03381350

  1. Remove exhaust pipe assembly (1) and nuts (2) .

    Illustration 2g03381458

  1. Remove bolts (4) .

  1. Use suitable lifting device to remove the muffler (3). The weight of the muffler (3) is approximately 32 kg (70 lb).

Installation Procedure

  1. Install muffler (3) in the reverse order of removal.

    1. Tighten bolts (4) to a torque of 52 ± 3 N·m (38 ± 2 lb ft)

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