- Open the front access door on the left side of the machine.
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NOTICE When performing maintenance above ground level, always use appropriate devices such as ladders and man lift machines.
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Illustration 1 g01266485 - Squeeze the outlet tube (1) slightly in order to purge the dirt from the outlet tube.
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Illustration 2 g01266486 - Loosen the cover latches (2) and remove the air cleaner cover.
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Illustration 3 g00101415 - Remove the primary filter element from the air cleaner housing.
- Clean the air cleaner cover and the inside of the air cleaner housing.
- Inspect the O-ring seal on the air cleaner cover. Replace the O-ring seal if the O-ring seal is worn or damaged.
- Install the clean primary filter.
Note: Refer to "Cleaning Primary Air Filter Elements".
- Install the air cleaner cover and close the latches securely.
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Illustration 4 g00101416 Note: Install the air cleaner cover properly. The arrows must point upward.
- Change the filter if any of the following conditions occurs:
- Restricted Air Filter indicator on the monitor panel still comes on.
- Exhaust smoke is still black after the installation of a primary filter.
- Close the access door.
Cleaning Primary Air Filter Elements
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Cat recommends certified air filter cleaning services available at participating Cat dealers. The Cat 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. |
When the primary air filter element is cleaned, check for rips or tears in the filter material. Replace the primary air filter element after the primary air filter element has been cleaned six times. 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.
| NOTICE |
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Cat recommends certified air filter cleaning services available at participating Cat dealers. The Cat 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. |
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 5 | 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 air flows inside the element along the length of the filter 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 6 | 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. 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 7 | 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.