Caterpillar — Engine Air Cleaner Element (Dual Element) - Clean/Replace
Maintenance · Air cleaner elements
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
- Never run the engine without an air cleaner element installed.
- Never service the air cleaner element with the engine running.
Procedure
- Remove the cover. Remove the primary air cleaner element.
- Remove and discard the secondary air cleaner element for every three cleanings of the primary element.
- Cover the turbocharger air inlet with tape in order to keep dirt out.
- Clean the inside of the air cleaner cover and body with a clean, dry cloth.
- Remove the tape. Install the secondary element and a new or cleaned primary element.
- Install the air cleaner cover.
- Reset the air cleaner service indicator.
Specs & values
- The primary air cleaner element may be cleaned up to six times if properly cleaned and inspected.
- The primary air cleaner element should be replaced at least one time per year.
- Air pressure must not exceed 207 kPa (30 psi) for cleaning.
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.