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Check Air Cleaner Service Indicator
Typical air cleaner indicator shown.Your engine may be equipped with a different indicator.A service indicator (if equipped) may be mounted on your dashboard or in the engine compartment. A colored piston showing in the window indicates the need for servicing the air cleaner.Observe the air cleaner service indicator. Clean or replace the air cleaner element when the yellow diaphragm enters the red zone, the red piston locks in the visible position or 25 inches (635 mm) H2O.As the air cleaner element becomes plugged, the difference of air pressure between the inlet side (dirty side) and the engine side (clean side) will increase.If your air cleaner element becomes plugged, the air can split the element filter material. Unfiltered air will drastically accelerate internal engine wear.Your Caterpillar dealer has air filter elements to service most popular makes of trucks. Contact your Caterpillar dealer for the correct filter element to fit your truck.Cleaning Caterpillar Air Cleaner Elements
The Caterpillar air filter element can be cleaned several times before replacement. The element, when cleaned, should be thoroughly checked for rips or tears in the filter material. Replace the primary element at least every year even though it has been cleaned less than the maximum recommendation.Refer to Guideline for Reusable Parts-Procedures to Inspect and Clean Air Filters, form SEBF8062 for information on inspecting, cleaning and reusing Caterpillar air filter elements.
Clean or replace elements at intervals recommended by the air cleaner OEM or truck manufacturer's recommendations and operating (dust, dirt and debris) conditions, or when required by the restriction indicator.Never service the air cleaner with the engine running since this will allow dirt to enter the engine.
Check the precleaner (if equipped) daily for accumulation of dirt and debris. Remove any dirt and debris as needed.Remove and Install Air Cleaner Elements
1. Loosen the retaining bolts and remove the end cover on the air cleaner housing.2. Remove and inspect the element for damaged pleats, gaskets or seals. Replace the element if damaged.3. Clean the inside of the housing.4. Replace the element in the housing.5. Install the end cover on the housing.6. Reset the service indicator by pushing the piston plunger in.Inspecting Element
7. Insert a light inside of the clean, dry element. Inspect it for rips and tears. Discard the element if damaged.8. Wrap and store good elements in a clean, dry place.