Poulan 2150PR User Manual - Page 14

MAINTENANCE SCHEDULE Check: Fuel mixture level . . . . Before each use Bar lubrication Before each use Chain tension Before each use Chain sharpness . . . . . Before each use For damaged parts . . . Before each use For loose caps Before each use For loose fasteners . . . Before each use For loose parts Before each use Inspect and Clean: Bar Before each use Complete saw After each use Air filter Every 5 hours* Chain brake Every 5 hours* Spark arresting screen and muffler Every 25 hours* Replace spark plug . Yearly Replace fuel filter . . . Yearly * Hours of Operation -Each hour of operation is approximately 2 tanks of fuel. 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 perfor- mance of the engine and increases fuel con- sumption 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 op- eration, or annually, whichever comes first. 1. Loosen 3 screws on cylinder cover. 2. Remove cylinder cover. 3. Remove air filter. 4. Clean the air filter using hot soapy water. Rinse with clean cool water. Air dry completely before reinstalling. 5. Lightly oil air filter before installing to im- prove the efficiency of air filter. Use 2--cycle engine oil or motor oil (SAE 30). Squeeze excess oil from filter. 6. Reinstall air filter. 7. Reinstall cylinder cover and 3 screws. TIghten securely. Air Filter Cylinder Cover Screws Cylinder Cover 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. CLEANING THE SPARK ARRESTING SCREEN Cleaning is required every 25 hours of operation or annually, whichever comes first. Outlet Guide Muffler Backplate Muffler Muffler Bolts Gasket Bolt Cover Locknut 1. Loosen and remove the locknut from the bolt cover. 2. Remove the bolt cover. 3. Loosen and remove the 2 muffler bolts. Remove the muffler, muffler gasket, outlet guide and backplate. Notice the ori- entation of these parts for reassembling. 4. Locate the 2 outlet cover screws on the muffler. Loosen and remove both screws. 5. Remove the outlet cover. Outlet Cover BACK VIEW OF MUFFLER Screws Muffler Spark Arresting Screen 6. Remove spark arresting screen. 7. Clean the spark arresting screen with a wire brush. Replace screen if any wires are broken or screen is blocked after cleaning. 8. Reinstall spark arresting screen. 9. Reinstall outlet cover and 2 screws. Ensure outlet cover and both screws are reinstalled correctly (see illustrations) to prevent damage to the saw. The exhaust outlet must face the chain brake (bar side) of the saw. 14