Husqvarna LC 121P Operation Manual - Page 12

MAINTENANCE TO CHANGE ENGINE OIL (See Fig. 13) NOTE: Before tipping lawn mower to drain oil, empty fuel tank by running engine until fuel tank is empty. 1. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. 2. Remove engine oil cap; lay aside on a clean surface. 3. Tip lawn mower on its side as shown and drain oil into a suitable container. Rock lawn mower back and forth to remove any oil trapped inside of engine. TAB SLOT CARTRIDIGE FILTER COVER FIG. 14 CONTAINER FIG. 13 4. Wipe off any spilled oil from lawn mower or side of engine. 5. Slowly pour oil down the oil fill spout, stopping every few ounces to check the oil level with the dipstick. 6. Stop adding oil when you reach the FULL mark on the dipstick. Wait a minute to allow oil to settle. 7. Continue adding small amounts of oil, rechecking the dipstick until oil level settles at FULL. DO NOT overfill, or engine will smoke heavily from the muffler on startup. 8. Always be sure to retighten oil dipstick before starting engine. 9. Reconnect spark plug wire to spark plug. MUFFLER Inspect and replace corroded muffler as it could create a fire hazard and/or damage. SPARK PLUG Replace spark plug 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 the "PRODUCT SPECIFICATIONS" section of this manual. CLEANING IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER HOUSING FREE OF BUILT-UP GRASS AND TRASH. CLEAN THE UNDERSIDE OF YOUR MOWER AFTER EACH USE. AIR FILTER (See Fig. 14) Your engine will not run properly and may be damaged by using a dirty air filter. Replace the air filter every 100 hours of operation or every season, whichever occurs first. Service air cleaner more often under dusty conditions. TO CLEAN AIR FILTER 1. Remove cover. 2. Carefully remove cartridge. 3. Clean by gently tapping on a flat surface. If very dirty, replace cartridge. 4. Install cartridge, then replace cover. CAUTION: Petroleum solvents, such as kerosene, are not to be used to clean cartridge. They may cause deterioration of the cartridge. Do not oil cartridge. Do not use pressurized air to clean or dry cartridge. CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. • Clean the underside of your lawn mower by scraping to remove build-up of grass and trash. • Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life. • Keep finished surfaces/wheels free of all gasoline, oil, etc. • With the exception of the water washout port (if equipped), we do not recommend using a garden hose to clean the outside of your lawn mower unless the electrical system, muffler, air filter and carburetor are covered to keep water out. Water in engine can result in shortened engine life. 12