Toro 900 51215 Operator's Manual
![Toro 900 51215 Trimmer manual cover](/images/rUzDZCpdWIVruJjrHdFcBDzM/thumbs/thumb175x175.webp)
To start the Toro 900 51215 trimmer, ensure it's filled with the correct fuel mixture, switch the choke to the closed position, press the primer bulb several times, and then pull the starter cord until the engine starts. Once started, gradually open the choke.
The Toro 900 51215 trimmer requires a mixture of unleaded gasoline and high-quality 2-cycle oil at a 50:1 ratio. Make sure the gasoline has an octane rating of 89 or higher.
To replace the trimmer line, turn off the trimmer and disconnect the spark plug. Remove the spool cap, take out the old line, and insert a new line by following the directional arrows on the spool. Ensure the line is securely in place before reattaching the cap.
If the trimmer won't start, check the fuel level and ensure it's fresh. Inspect the spark plug for wear or damage and replace if necessary. Also, ensure the air filter is clean and not clogged.
The air filter should be checked and cleaned after every 10 hours of use. If you operate the trimmer in dusty conditions, consider cleaning it more frequently to ensure optimal performance.
Yes, the Toro 900 51215 trimmer can be used for edging by rotating the trimmer head to align with the edge of the lawn or walkway. Ensure you maintain a consistent angle for a clean edge.
Regular maintenance tasks include checking and replacing the spark plug annually, cleaning or replacing the air filter regularly, maintaining the correct fuel mixture, inspecting and replacing the trimmer line, and cleaning the trimmer after each use.
To improve performance, use fresh fuel mixed with high-quality 2-cycle oil, clean or replace the air filter regularly, check the spark plug condition, and ensure the trimmer line is the correct size and properly installed.
During the off-season, drain the fuel tank and run the engine until it stops to clear any remaining fuel. Clean the trimmer thoroughly, inspect for any damage, and store it in a dry, cool place away from direct sunlight.
Excessive vibration can be caused by a bent shaft, damaged trimmer head, or incorrect installation of the trimmer line. Inspect these components and replace any damaged parts. Rebalance the trimmer line if necessary.