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Service the air cleaner only with the engine stopped. Engine damage could result. |
Service the air cleaner filter elements when the engine fault indicator is activated. The engine fault indicator is located inside the cab. The engine fault indicator will activate when there is an inlet air restriction, and the Information Display will provide a message regarding the specific problem. For information regarding the Information Display, refer to Systems Operation, KENR6489, "836K Landfill Compactor, and 834K Wheel Dozer, and 988K Wheel Loader Information Display (touchscreen), LWL".
The engine air filter housings are located behind the access doors at the front of the engine enclosure.
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| Illustration 1 | g03553757 |
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(1) Right-hand engine air filter access door (closed)
(2) Left-hand engine air filter access door (open) | |
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Service the engine air filter elements only when the alert indicator for the intake air filter is flashing. Do not open the filter compartment unless service is indicated. Opening the filter compartment can cause dirt to get into the clean side of the filter housing. |
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Short air filter life can result if the precleaner system malfunctions. If air filter life is drastically reduced from typical for the operating conditions, consult you Cat dealer. |
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Service the engine air filters with the engine stopped. Engine damage could result. |
| NOTICE |
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Do not use the air filter elements for longer than 1 year. |
- Park the machine on a level surface. Stop the engine and engage the parking brake.
- Open left-hand engine air filter access door (1) to service the left-hand engine air filters.
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Illustration 2 g03145457 Components of each engine air filter assembly.
(3) Engine air filter assembly housing
(4) Secondary engine air filter element
(5) Primary engine air filter element
(6) Engine air filter assembly housing cover - Release the latches that secure engine air filter assembly housing cover (6). Remove the cover.
- Grasp the handle that is molded into primary engine air filter element (5) and pull the element from engine air filter housing (3).
- Carefully remove secondary air filter element (4) by pulling out on the element with a circular motion.
Note: Removal of the secondary air filter element allows for more complete cleaning of the engine air filter housing than is possible by removing only the primary engine air filter element.
- Set the secondary air filter element aside in a clean and safe location if the secondary element will be reinstalled after replacing the primary air filter element.
- Cover the engine air filter assembly housing outlet. This outlet is revealed when the secondary air filter element is removed.
- Clean the inside of the air filter assembly housing.
Note: Thorough cleaning of the housing is necessary so that the primary engine air filter element and the secondary air filter element can be installed correctly.
- Uncover the engine air filter assembly housing outlet that was covered in step 7.
- Inspect the secondary air filter element that was removed in step 5. If damage or contamination of the secondary air filter element is found, dispose of the element properly and replace with a new secondary air filter element.
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NOTICE Always replace the primary and secondary air filter elements. Do not clean the air filter elements. Do not wash the air filter elements. Do not use air filter elements with damaged pleats, gaskets, or seals.
- Install the secondary air filter element into the air filter housing. Push the end of the secondary element firmly, but carefully, to position the element into the air filter housing properly.
- Write the date of installation on the secondary air filter element.
- Install a new primary air filter element. Push the element firmly in order to properly seat the element. Write the date of installation on the element.
- Install the air filter housing cover and secure the latches that clamp the cover to the air filter housing.
- Close the left-hand engine air filter access door.
- Repeat the preceding procedure in order to replace the right-hand engine air filter primary elements.
