PERIODIC SERVICE 50 B Cleaning Air Cleaner Primary Element 1. Remove the air cleaner cover and primary element. 2. Clean the primary element: (1) When dry dust adheres to the element, blow compressed air from the inside, turning the element. Pressure of compressed air must be under 205 kPa (2.1 kgf/cm , 30 psi). (2) When carbon or oil adheres to the element, replace the element with new one even if it has not been used for 1 year. 3. Replace the primary element: Once yearly or after every sixth cleaning, whichever comes first.
C Evacuator Valve Open the evacuator valve once a week under ordinary conditions - or daily when used in a dusty place - to get rid of large particles of dust and dirt. B Cleaning Pre Cleaner Element 1. Remove the Pre cleaner element. A Check to see if the evacuator valve is blocked with dust. A Check the rubber seal. Replace if damaged. (1) Pre cleaner element (2) Intake air line 2. Wash the pre cleaner in warm water with detergent. Rinse the pre cleaner thoroughly until all traces of detergent are eliminated. Squeeze out excess water. Allow the pre cleaner to air dry. 3. Reinstall the pre cleaner.
(1) Secondary (safety) element (2) Primary element (3) Rubber seal (4) Evacuator valve (5) Cover A The air cleaner uses a dry element, never apply oil. A Do not run the engine with filter element removed. A Be sure to refit the cover with the arrow (on the rear of cover) upright. If the cover is improperly fitted, evacuator valve will not function and dust will adhere to the element. A Do not touch the secondary element except in cases where replacing is required. (See "Replacing Air Cleaner Secondary Element" in "EVERY 1 YEAR" in "PERIODIC SERVICE" section.)