Poulan P4018WT User Manual - Page 15

S Clean the oil holes and bar groove after each 5 hours of operation. Remove Sawdust From Guide Bar Groove Oil Holes S Burring of guide bar rails is a normal process of rail wear. Remove these burrs with a flat file. S When rail top is uneven, use a flat file to restore square edges and sides. File Rail Edges and Sides Square Worn Groove Correct Groove Replace guide bar when the groove is worn, the guide bar is bent or cracked, or when excess heating or burring of the rails occurs. If replacement is necessary, use only the guide bar specified for your saw in the repair parts list or on the decal located on the chain saw. CHECK FUEL MIXTURE LEVEL S See FUELING ENGINE under the OP- ERATION section. LUBRICATION Bar Oil Fill Cap S See GUIDE BAR AND CHAIN OIL under the OPERATION section. INSPECT AND CLEAN UNIT AND DECALS S After each use, inspect complete unit for loose or damaged parts. Clean the unit and decals using a damp cloth with a mild detergent. S Wipe off unit with a clean dry cloth. CHECK CHAIN BRAKE See CHAIN BRAKE in the OPERATION section. CLEAN AIR FILTER CAUTION: Do not clean filter in gasoline or other flammable solvent to avoid creating a fire hazard or producing harmful evaporative emissions. Cleaning the air filter: A dirty air filter decreases the life and performance of the engine and increases fuel consumption and harmful emissions. Always clean your air filter after 10 tanks of fuel or 5 hours of operation, whichever comes first. Clean more frequently in dusty conditions. A used air filter can never be completely cleaned. It is advisable to replace your air fil- ter with a new one after every 50 hours of operation, or annually, whichever comes first. 1. Loosen 3 screws on cylinder cover. 2. Remove cylinder cover. 3. Remove air filter cover and air filter. 4. Clean the air filter using hot soapy water. Rinse with clean cool water. Air dry completely before reinstalling. 5. Reinstall air filter and air filter cover. 6. Reinstall cylinder cover and 3 screws. Tighten securely. Air Filter Cover Cylinder Cover Air Filter INSPECT MUFFLER AND SPARK ARRESTING SCREEN WARNING: The muffler on this product contains chemicals known to the State of California to cause cancer. As the unit is used, carbon deposits build up on the muffler and spark arresting screen, and must be removed to avoid creating a fire hazard or affecting engine performance. Replace the spark arresting screen if breaks occur. Spark Exhaust Arresting Outlet Screen Cover Nut Muffler CLEANING THE SPARK ARRESTING SCREEN Cleaning is required every 25 hours of operation or annually, whichever comes first. 1. Loosen and remove the nut from the ex- haust outlet cover. 2. Remove the exhaust oulet cover. 3. Remove spark arresting screen. Handle screen carefully to prevent damage. 4. Clean the spark arresting screen gently with a wire brush. Replace screen if breaks are found. 5. Replace any broken or cracked muffler parts. 15