3412E Petroleum Engine Caterpillar

Removal Procedure

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Illustration 1	g01193861

1. Loosen clamp (3). Remove clamp (3) and breather assembly (1) .

2. Remove O-ring seal (2). Discard the O-ring seal.

Note: Clean the breather elements with clean, nonflammable solvent. If the breather elements remain contaminated after the cleaning, discard the breather assemblies and obtain new breather assemblies. Do not attempt to disassemble the breather assemblies. Allow the breather elements to dry before installation.

3. Turn the breather assembly upside-down in order to inspect the condition of the breather elements.

Installation Procedure

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Illustration 2	g01193861

1. Apply clean engine oil to new O-ring seal (2). Place the O-ring seal on breather assembly (1) .

2. Place clamp (3) around the part of breather assembly (1) that will be attached to the valve covers. Install breather assembly (1). Tighten the clamp to a torque of 4.5 ± 0.5 N·m (40 ± 4 lb in).