ENGINE COOLING FINS Clean cartridge by tapping gently on flat surface. If very dirty or damaged, replace cartridge. Reinstall cartridge, nut, precleaner, cover and secure with knob(s). IMPORTANT: Petroleum solvents, such as kerosene, are not to be used to clean the cartridge. They may cause deteriora- tion of the cartridge. Do not oil cartridge. Do not use pressurized air to clean or dry cartridge. Remove any dust, dirt or oil from engine cooling fins to prevent engine damage from overheating. Remove screws from blower housing and lift housing and dipstick tube assembly off engine. Cover oil fill opening to prevent entry of dirt.
Use compressed air or stiff bristle brush to thoroughly clean engine cooling fins. To reassemble, reverse above procedure. Cover Knob Screws Blower Housing Screws _Cover Foam _-_---_ Cartridge Pre-Cleaner _ut _ _-Paper Dipstick Tube Assembly Cartridge -- Base MUFFLER Plug Engine Cooling Inspect and replace corroded muffler and spark arrester (if equipped) as it could create a fire hazard and/or AIR FILTER Your engine will not run properly using a dirty air filter. Clean the foam pre-cleaner after every 25 hours of operation or every season. Service paper cartridge every 100 hours of operation or every season, whichever occurs first. Service air cleaner more often under damage.
SPARK PLUGS Replace spark plugs at the beginning of each mowing season or after every 100 hours of operation, whichever occurs first. Spark plug type and gap setting are shown in "PRODUCT SPECIFICATIONS" section of this manual. dusty conditions. Remove knob(s) and cover. TO SERVICE PRE-CLEANER IN-MNE FUEL FILTER Slide foam pre-cleaner off cartridge. Wash it in liquid detergent and water. Squeeze it dry in a clean cloth. Saturate it in engine oil. Wrap it in clean, absorbent cloth and squeeze to remove excess oil. The fuel filter should be replaced once each season. If fuel filter becomes clogged, obstructing fuel flow to carbure- tor, replacement is required.
With engine cool, remove filter and plug fuel line sections. Place new fuel filter in position in fuel line with arrow pointing towards carburetor. Be sure there are no fuel line leaks and clamps are properly positioned. Immediately wipe up any spilled gasoline. If very dirty or damaged, replace pre- cleaner. Reinstall pre-cleaner over cartridge. Reinstall cover and secure with knob(s). TO SERVICE CARTRIDGE Remove cartridge nut. Carefully remove cartridge to prevent debris from entering carburetor. Clean base carefully to prevent debris from entering carburetor. Clamp_amp 20 Fuel Flit er _'"_.____