Poulan PO18H42STA User Manual - Page 18

MAINTENANCE ENGINE COOLING FINS (See Fig. 14) Remove any dust, dirt or oil from engine cooling fins to prevent engine damage from overheating. • Remove oil fill cap/dipstick. • Remove hex bolts from blower housing and lift housing 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. HEX BOLTS BLOWER HOUSING HEX BOLTS OIL FILL OPENING AIR SCREEN HANDLE PRE-CLEANER COVER CARTRIDGE BASE TABS SLOTS FIG. 15 MUFFLER Inspect and replace corroded muffler and spark arrester (if equipped) as it could create a fire hazard and/or damage. SPARK PLUGS ENGINE COOLING FINS SPARK PLUG 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. FIG. 14 IN-LINE FUEL FILTER (See Fig. 16) The fuel filter should be replaced once each season. If fuel ENGINE OIL FILTER filter becomes clogged, obstructing fuel flow to carburetor, Replace the engine oil filter every season or every other oil change if the tractor is used more than 100 hours in one year. replacement is required. • With engine cool, remove filter and plug fuel line sections. • Place new fuel filter in position in fuel line with arrow AIR FILTER (See Fig. 15) Your engine will not run properly using a dirty air filter. Replace pre-cleaner after every 25 hours of operation or every season. Service paper cartridge every 100 hours of pointing towards carburetor. • Be sure there are no fuel line leaks and clamps are properly positioned. • Immediately wipe up any spilled gasoline. operation or every season, whichever occurs first. Service air cleaner more often under dusty conditions. CLAMP CLAMP • Pull up on air filter cover handle and rotate towards engine. • Remove cover. • Carefully remove air filter cartridge and pre-cleaner FUEL FILTER from base. FIG. 16 • Clean base carefully to prevent debris from falling into carburetor. CLEANING NOTE: If very dirty or damaged, replace cartridge. • Place new pre-cleaner and cartridge firmly in base. • Align tabs on cover with slots in blower housing and replace cover. • Hook handle on cover and push down on handle to • Clean engine, battery, seat, finish, etc. of all foreign matter. • Keep finished surfaces and wheels free of all gasoline, oil, etc. • Protect painted surfaces with automotive type wax. close. We do not recommend using a garden hose or pressure 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 washer to clean your tractor unless the engine and transmission are covered to keep water out. Water in engine or transmission will shorten the useful life of your tractor. Use use pressurized air to clean cartridge. compressed air or a leaf blower to remove grass, leaves and trash from tractor and mower. 18