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Service the air cleaner only with the engine stopped. Engine damage could result. |
Service the air cleaner filter element when the yellow piston on the engine air filter service indicator enters the red zone or the indicator reads
- Remove cover (1) for the air filter housing.
- Remove primary filter element (2) from the air filter housing.
- Clean the inside of the air filter housing.
- Clean the vacuator valve on the cover for the air filter housing.
- Install a clean primary air filter element. Install the cover for the air filter housing.
Note: Refer to "Cleaning Primary Air Filter Elements".
- Reset the engine air filter service indicator.
- Close the access door.
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| Illustration 1 | g00102316 |
If the yellow piston in the indicator moves into the red zone after starting the engine or the exhaust smoke is still black after installation of a clean primary filter element, install a new primary filter element. If the piston remains in the red zone replace the secondary element.
Cleaning Primary Air Filter Elements
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AVSpare recommends certified air filter cleaning services available at participating AVSpare dealers. The AVSpare cleaning process uses proven procedures to assure consistent quality and sufficient filter life. Observe the following guidelines if you attempt to clean the filter element: Do not tap or strike the filter element in order to remove dust. Do not wash the filter element. Use low pressure compressed air in order to remove the dust from the filter element. Air pressure must not exceed Do not use air filters with damaged pleats, gaskets, or seals. Dirt entering the engine will cause damage to engine components. |
The primary air filter element can be used up to six times if the element is properly cleaned and if the element is properly inspected. When the primary air filter element is cleaned, check for rips or tears in the filter material. The primary air filter element should be replaced at least one time per year. This replacement should be performed regardless of the number of cleanings.
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Do not clean the air filter elements by bumping or tapping. This could damage the seals. Do not use elements with damaged pleats, gaskets, or seals. Damaged elements will allow dirt to pass through. Engine damage could result. |
Visually inspect the primary air filter elements before cleaning. Inspect the air filter elements for damage to the seal, the gaskets, and the outer cover. Discard any damaged air filter elements.
There are two common methods that are used to clean primary air filter elements:
- Pressurized air
- Vacuum cleaning
Pressurized air can be used to clean primary air filter elements that have not been cleaned more than two times. Pressurized air will not remove deposits of carbon and oil. Use filtered, dry air with a maximum pressure of
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| Illustration 2 | g00281692 |
Note: When the primary air filter elements are cleaned, always begin with the clean side (inside) in order to force dirt particles toward the dirty side (outside).
Aim the hose so that the air flows inside the element along the length of the filter in order to help prevent damage to the paper pleats. Do not aim the stream of air directly at the primary air filter element. Dirt could be forced further into the pleats.
Vacuum cleaning is another method for cleaning primary air filter elements which require daily cleaning because of a dry, dusty environment. Cleaning with pressurized air is recommended prior to vacuum cleaning. Vacuum cleaning will not remove deposits of carbon and oil.
Inspecting the Primary Air Filter Elements
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| Illustration 3 | g00281693 |
Inspect the clean, dry primary air filter element. Use a 60 watt blue light in a dark room or in a similar facility. Place the blue light in the primary air filter element. Rotate the primary air filter element. Inspect the primary air filter element for tears and/or holes. Inspect the primary air filter element for light that may show through the filter material. If it is necessary in order to confirm the result, compare the primary air filter element to a new primary air filter element that has the same part number.
Do not use a primary air filter element that has any tears and/or holes in the filter material. Do not use a primary air filter element with damaged pleats, gaskets or seals. Discard damaged primary air filter elements.
Storing Primary Air Filter Elements
If a primary air filter element that passes inspection will not be used, the primary air filter element can be stored for future use.
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| Illustration 4 | g00281694 |
Do not use paint, a waterproof cover, or plastic as a protective covering for storage. An air flow restriction may result. To protect against dirt and damage, wrap the primary air filter elements in Volatile Corrosion Inhibited (VCI) paper.
Place the primary air filter element into a box for storage. For identification, mark the outside of the box and mark the primary air filter element. Include the following information:
- Date of cleaning
- Number of cleanings
Store the box in a dry location.