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. Wear safety glasses or goggles to protect the eyes when using compressed air to clean the element. Checking If air cleaner clogged caution lamp (1) on the maintenance monitor flashes, clean the air cleaner element. The outer element can be cleaned as many as six times before requiring replacement. 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 after the outer element has been cleaned. 2) Replace an outer element which has been cleaned six times or has been in use for a year. Replace the inner element at the same time. 3) If the dust indicator displays 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, tighten.
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. Do not try to clean the element by hitting or beating it against solid objects. Do not use an element that has any damaged folds, gaskets or seals. 5) After cleaning, reinstall. 3-30 WA420-3MC