Poulan Pro PR185H42STE Operator's Manual

Ensure the parking brake is engaged, the blades are disengaged, and the throttle is set to the choke position. Turn the key to start the engine and once it starts, move the throttle to the fast position.
Check the fuel level, ensure the battery is charged, inspect the spark plug for wear or damage, and verify that the fuel filter is not clogged.
Change the oil after the first 5 hours of operation and then every 50 hours or once per season. Use SAE 30 oil for optimal performance.
Regularly clean the mower deck to prevent grass buildup, check for and tighten any loose bolts, and sharpen or replace blades as needed.
Ensure the tire pressure is equal on all sides, check that the blades are sharp and not damaged, and adjust the deck leveling if necessary.
Excessive vibration could be due to unbalanced or damaged blades, loose engine mounts, or debris lodged in the mower deck. Inspect and address these areas accordingly.
Clean the tractor thoroughly, change the oil, add a fuel stabilizer to the tank, remove the battery, and store it in a dry, covered location.
Inspect the steering linkage for wear or damage, ensure all steering components are properly lubricated, and check the tire pressure.
Refer to the manual for your specific model, but generally, you will need to remove the mower deck, release the tension on the belt, and then replace it with a new one following the belt routing diagram.
Ensure the battery terminals are clean and free of corrosion, check the electrolyte level if applicable, and keep the battery charged, especially in cold weather.