MAINTENANCE 24.2 WHEN REQUIRED 24.2.1 CLEAN OR REPLACE AIR CLEANER ELEMENT WARNING Never clean or replace the air cleaner element with the engine running. When using pressurized air to clean the element wear safety glasses or goggles to protect the eyes. Checking If air cleaner clogging caution lamp (1) on the maintenance monitor flashes, clean the air cleaner element. Cleaning or Replacing Outer Element 1. Remove wing nut (2), and cover (3), take out outer element. 2. Clean the inside of the air cleaner body. 3. Direct dry compressed air, less than 7 kg/cm , (100 psi) to 2 element from inside along its folds, then direct it from outside along its folds and again from inside.
1) Remove one seal from the outer element whenever the outer element has been cleaned. 2) Replace the outer element which has been cleaned six times repeatedly or used throughout a year. Replace the inner element at the same time. 3) If the dust indicator display red immediately after the outer element has been cleaned, replace both inner and outer elements, even if the outer element has not been cleaned six times. 4) Check inner element mounting nuts for looseness and, if necessary, retighten. Replace seal washer (5) or wing nut (4) with new parts if they are broken. NOTE: After cleaning and drying the element, check it by shining a light through it.
If small holes or thin cracks are found, replace the element. When cleaning the element, do not hit it or beat it against anything. Do not use an element that has any damaged folds, gaskets or seals. 5) After cleaning, reinstall. 3-31 WA320-3MC