COUPLING AS 3651327 - Caterpillar

Remove the cover. Remove the element.
Cover the air inlet opening with a clean cloth, or seal with tape in order to prevent dirt from entering the engine.
Clean the inside of the air cleaner cover and body with a clean, dry cloth.
Clean the element and inspect the element. Replace the element, if necessary. Refer to "Cleaning Paper Air Cleaner Elements".
Remove the seal from the air inlet opening. Install an element that is new or cleaned. Cleaning Paper Air Cleaner Elements
The element can be used up to six times if the element is properly cleaned and inspected. When the element is cleaned, check for rips or tears in the filter material. The element should be replaced at least one time per year. This replacement should be performed regardless of the number of cleanings.Use clean elements while dirty elements are being cleaned.
Do not clean the air cleaner 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 element before cleaning. Inspect the element for damage to the seal, the gaskets, and the outer cover. Discard any damaged elements.There are four common methods that are used to clean elements:
Pressurized water
Pressurized air
Vacuum cleaning
Washing with nonsudsing detergentPressurized Water
Pressurized water will clean the element unless carbon and oil have accumulated on the surface of the element. The maximum water pressure for cleaning purposes must be below 275 kPa (40 psi). Do not use a spray nozzle.Note: When the element is 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 water 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 water directly at the element. Dirt could be forced further into the pleats.Note: Refer to "Drying the Paper Air Cleaner Elements". Refer to "Inspecting the Paper Air Cleaner Elements".Pressurized Air
Pressurized air can be used to clean 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 207 kPa (30 psi).
Illustration 1 g00281692Note: When the paper air cleaner 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 element. Dirt could be forced further into the pleats.Note: Refer to "Inspecting the Paper Air Cleaner Elements".Vacuum Cleaning
Vacuum cleaning is a good method for cleaning paper air cleaner 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