Poulan Pro 331 Operator's Manual

To start the Poulan Pro 331 Trimmer, ensure the trimmer is on a flat surface. Set the choke to the 'start' position, press the primer bulb 6 times, and pull the starter rope until the engine fires. Move the choke to 'run' and pull the starter rope again to start.
Use a mix of unleaded gasoline and 2-cycle oil at a ratio of 40:1 for the Poulan Pro 331 Trimmer. Ensure the gasoline has an octane rating of 87 or higher.
To replace the trimmer line, remove the spool from the trimmer head, cut a piece of line about 25 feet long, and wind it tightly around the spool in the direction indicated. Secure the line in the holder and reattach the spool.
If the trimmer is not starting, check the fuel level and quality, ensure the spark plug is clean and properly connected, and verify that the air filter is not clogged. Replace any damaged parts as necessary.
To clean the air filter, remove the air filter cover and take out the filter. Wash it with soapy water, rinse thoroughly, and let it dry completely before reinstalling it.
Regular maintenance includes checking and cleaning the air filter, inspecting the spark plug, cleaning the trimmer head, and ensuring all bolts and screws are tight. Perform these checks every 25 hours of use.
Excessive vibration can be caused by an unbalanced trimmer head or damaged components. Check the trimmer head for wear and balance, and inspect the drive shaft for any bends or damage.
If the line keeps breaking, ensure you are using the correct line diameter, check for sharp edges on the trimmer head, and avoid hitting hard surfaces. Replace the trimmer head if it is damaged.
For winter storage, drain the fuel tank, clean the trimmer thoroughly, and store it in a dry place. Remove the spark plug and add a few drops of oil into the cylinder to prevent rust.
Yes, the Poulan Pro 331 Trimmer can be used for edging. Turn the trimmer head so that the line is vertical, and carefully guide it along the edge of the lawn for clean cuts.