PERIODIC SERVICE 20 ENGLISH AIR CLEANER Since the air cleaner employed on this engine is a dry type, never apply oil to it. 1. Open the evacuator valve once a week under ordinary conditions - or daily when used in a dusty place. This will get rid of large particles of dust and dirt. 2. Wipe the inside air cleaner clean with cloth if it is dirty or wet. 3. Avoid touching the element except when cleaning. 4. 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). 5. Replace the element every year or every 6 cleanings.
B 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 For the air cleaner with a dust cup (optional) Remove and clean out the dust cup before it becomes half full with dust; usually once a week, or even every day if the working surroundings are dusty. Install the air cleaner dust cup with "TOP" indicated on the rear of the cup in the up position.
(However, it may be installed in either direction when the cover is placed at the lower part.) A If the dust cup is mounted incorrectly, dust or dirt does not collect in the cup, and direct attachments of the dust to the element will cause its lifetime to shorten to a great extent. (1) Air cleaner body (2) Element (3) Wing bolt (4) Evacuator valve A Make sure the wing bolt for the element is tight enough. If it is loose, dust and dirt may be sucked in, wearing down the cylinder liner and piston ring earlier and thereby resulting in poor power output. A Do not overservice the air cleaner element. Overservicing may cause dirt to enter the engine causing premature wear.
Use the dust indicator as a guide on when to service. (1) Air cleaner body (2) Element (3) Wing bolt (4) Dust cup (5) "TOP" mark