Caterpillar 3406 — Service Oil Bath-Type Air Cleaner
Maintenance · Engine Air Intake
For the Caterpillar 3406, from the Caterpillar operator's manual.
Applies to: Caterpillar 3406
Parts for this job
Part numbers from the service-parts list for Caterpillar 3406. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Loosen the retaining clamp thumb screw and remove the oil pan from the air cleaner.
- Clean the bottom of the oil pan with clean nonflammable solvent.
- Fill the pan with clean engine oil to the level indicated by the mark on the side of the oil pan.
- Install the oil pan and tighten the retaining clamp.
Full service-parts list: Caterpillar 3406 →
Source: Caterpillar operator'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.