Poulan PPB335 User Manual - Page 15

Screwdriver 3. While holding the screwdriver in position, remove trimmer head by turning clockwise (looking from bottom of unit). 4. Thread replacement trimmer head onto the shaft by turning counterclockwise. Tighten until secure. 5. Remove the screwdriver. CARBURETOR IDLE SPEED ADJUSTMENT WARNING: Keep others away when making idle speed adjustments. The trimmer head, blade or any optional attachment will be spinning during most of this procedure. Wear your protective equipment and observe all safety precautions. After making adjustments, the trimmer head, blade or any optional attachment must not move/spin at idle speed. The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions: S Engine will not idle when the throttle is released. S The trimmer head, blade or optional attachment moves/spins at idle. Make adjustments with the unit supported so the cutting attachment is off the ground and will not make contact with any object. Hold the unit by hand while running and making adjustments. Keep all parts of your body away from the cutting attachment and muffler. To adjust idle speed: Allow engine to idle. Adjust speed until engine runs without trimmer head, blade or optional attachment moving or spinning (idle too fast) or stalling (idle speed too slow). S Turn idle speed screw clockwise to increase engine speed if engine stalls or dies. S Turn idle speed screw counterclockwise to decrease engine speed if trimmer head, blade or optional attachment moves or spins at idle. WARNING: Recheck the idle speed after each adjustment. The trimmer head, blade or optional attachment must not move or spin at idle speed to avoid serious injury to the operator or others. Idle Speed Screw Air Filter Cover If you require further assistance or are unsure about performing this procedure, contact an authorized service dealer or call 1--800--554--6723. STORAGE WARNING: Perform the following steps after each use: S Allow engine to cool before storing or trans- porting. S Store unit and fuel in a well ventilated area where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc. S Store unit with all guards in place. Position unit so that any sharp object cannot accidentally cause injury. S Store unit and fuel well out of the reach of children. SEASONAL STORAGE Prepare unit for storage at end of season or if it will not be used for 30 days or more. If your unit is to be stored for a period of time: S Clean the entire unit before lengthy storage. S Store in a clean dry area. S Lightly oil external metal surfaces. FUEL SYSTEM Under FUELING ENGINE in the OPERATION section of this manual, see message labeled IMPORTANT regarding the use of gasohol in your engine. Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits during storage. Add stabilizer to the gasoline in the fuel tank or fuel storage container. Follow the mix instructions found on stabilizer container. Run engine at least 5 minutes after adding stabilizer. HELPFUL TIP During storage of your gas/ oil mixture, the oil will separate from the gas. We recommend that you shake the gas can weekly to insure proper blending of the gas and oil. 15