Caterpillar — Engine Crankcase Breather - Clean/Replace
Maintenance · Crankcase breather (3054E and 3056E Engines)
From a Caterpillar owner's manual covering: 3054E, 3056E, C12. Check it applies to your exact model before use.
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Before you start
- Ensure that the components of the breather assembly are installed in the correct positions. If not installed correctly, engine damage can result.
Procedure
- Loosen hose clamps (1). Remove the hoses (2) from the breather assembly (3).
- Remove two bolts that hold the breather assembly (3) to the cylinder block. Remove the breather assembly.
- Discard the breather assembly (3). Install a new breather assembly by using the two bolts.
- Install the hoses (2) and tighten the hose clamps (1).
Specs & values
- Refer to the Operation and Maintenance Manual, "Torque Specifications" for the correct torques.
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.