Briggs & Stratton 425604x18B Parts Manual
![Briggs & Stratton 425604x18B Tractor manual cover](/images/NWjfoqFOfRmxgCNLFgwtPhaE/thumbs/thumb175x175.webp)
To change the oil, first run the engine for a few minutes to warm it up. Then, turn off the engine and remove the oil drain plug to allow the old oil to drain completely. Replace the drain plug and fill the engine with the recommended oil type and quantity. Consult the owner's manual for specifics.
Check the battery connections for corrosion and ensure they are tight. Verify that there is enough fuel in the tank and that the fuel valve is open. Inspect the spark plug for wear and replace if necessary. Also, make sure the PTO is disengaged and the transmission is in neutral.
The blades should be sharpened after approximately every 25 hours of use, or more frequently if you notice a decrease in cutting performance. Regular inspection and maintenance of the blades ensure optimal cutting and grass health.
Use fresh, unleaded gasoline with a minimum octane rating of 87. Avoid using gasoline with more than 10% ethanol content, as it can cause damage to the engine components.
Check if the tire pressure is even on all sides and adjust if necessary. Inspect the mower deck for level alignment and adjust according to the manufacturer's instructions. Also, ensure the blades are sharp and not damaged.
Remove the air filter cover and take out the filter. If it's a foam filter, wash it with warm soapy water, rinse, and let it dry completely before reinstalling. For paper filters, gently tap to remove debris, or replace if excessively dirty.
Regularly clean the engine cooling fins and air intake screens to prevent debris buildup. Ensure the engine oil level is adequate, and replace the oil and filter at recommended intervals. Avoid overloading the tractor during operation.
Inspect the battery terminals and cables for corrosion and ensure they are securely connected. Test the voltage regulator and alternator for proper function. If necessary, consult a professional technician for further diagnostics.
Thoroughly clean the tractor and remove all debris. Drain the fuel system or add a fuel stabilizer to prevent gum deposits. Change the oil and remove the battery, storing it in a cool, dry place. Cover the tractor to protect it from dust and moisture.
Locate the cutting height adjustment lever, usually positioned on the side of the tractor. Move the lever to the desired height setting, ensuring both sides are adjusted evenly for a consistent cut. Refer to the manual for specific height settings.