Poulan 271470 User Manual - Page 19

ELECTRICAL REPAIR PARTS TRACTOR -- MODEL NUMBER 271470 21 22 42 24 41 43 27 27 26 40 27 27 25 33 30 16 16 8 2 48 27 52 29 28 30 CLEAN AIR SCREEN Air screen must be kept free of dirt and chaff to prevent engine damage from overheating. Clean with a wire brush or compressed air to remove dirt and stubborn dried gum fibers. ENGINE COOLING FINS 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 proce- dure. Blower Housing Screws Screws Dipstick Tube Assembly Air Screen TO SERVICE CARTRIDGE • Remove cartridge nut. • Carefully remove cartridge to prevent debris from entering carburetor. Clean base carefully to prevent debris from entering carburetor. • 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 deterioration of the cartridge. Do not oil cartridge. Do not use pressurized air to clean or dry cartridge. Cover Knob Cover Cartridge Nut Foam PreCleaner Paper Cartridge Base Engine Cooling Fins Spark Plug 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 dusty conditions. • Remove knob(s) and cover. TO SERVICE PRE-CLEANER • 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. • If very dirty or damaged, replace precleaner. • Reinstall pre-cleaner over cartridge. • Reinstall cover and secure with knob(s). MUFFLER Inspect and replace corroded muffler and spark arrester (if equipped) as it could create a fire hazard and/or 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. IN-LINE FUEL FILTER The fuel filter should be replaced once each season. If fuel filter becomes clogged, obstructing fuel flow to carburetor, 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. Clamp Clamp Fuel Filter 19