Toro Recycler II Super Pro 21-inch 20438 Operator's Manual
![Toro Recycler II Super Pro 21-inch 20438 Mower manual cover](/images/wlaSaxOXYeUKFHaRMQtlsCSJ/thumbs/thumb175x175.webp)
Ensure the mower is on a flat surface, check the oil and fuel levels, set the throttle to the 'Start' position, and pull the starter rope firmly.
Use SAE 30 oil for temperatures above 40°F (4°C) and SAE 10W-30 for temperatures below 40°F (4°C).
Check the spark plug for fouling, ensure the fuel is fresh, verify the air filter is clean, and make sure the safety handle is engaged.
Regular maintenance includes changing the oil, cleaning or replacing the air filter, sharpening the blade, and checking the spark plug.
Sharpen the mower blade after approximately 25 hours of use or whenever it becomes dull to maintain optimal cutting performance.
Check for a damaged or unbalanced blade, ensure all mounting bolts are tight, and inspect for debris caught in the mower deck.
Ensure the blade is sharp, mow with the correct height setting for grass conditions, and do not mow wet grass to avoid clumping.
The recommended mowing height is generally between 2 to 3 inches, depending on grass type and seasonal growth.
Turn off the mower, disconnect the spark plug wire, and use a brush or cloth to remove grass clippings and debris from the deck and blades.
The model and serial number are usually located on a sticker or plate on the rear of the mower deck or under the seat.