Murray 521000x71A Parts Manual

To maintain your Murray 521000x71A Tractor, regularly check the oil level, clean or replace the air filter, inspect the spark plug, and ensure the tires are properly inflated. Also, lubricate moving parts and check belts for wear.
If your tractor won't start, check the battery connections, ensure there's fuel in the tank, and inspect the spark plug for fouling. Additionally, verify that the safety features are engaged properly.
Uneven cutting can be fixed by checking if the mower deck is level, ensuring the blades are sharp, and verifying tire pressure is even. Also, remove any debris stuck under the deck.
It is recommended to use SAE 30 oil for temperatures above 32°F and SAE 5W-30 for temperatures below 32°F for the Murray 521000x71A Tractor.
To change the blades, first disconnect the spark plug, lift the mower deck, and use a wrench to remove the blade bolt. Replace with a new blade and tighten the bolt securely.
Excessive vibration may be due to unbalanced or damaged blades, loose components, or worn belts. Inspect these areas and replace or tighten as necessary.
To improve fuel efficiency, keep the engine properly tuned, clean the air filter regularly, ensure tires are inflated to the correct pressure, and avoid mowing wet grass.
If the transmission is slipping, check the drive belt for wear or damage and replace if necessary. Also, ensure the transmission fluid is at the correct level.
The oil should be changed after the first 5 hours of use and then every 50 hours or annually, whichever comes first.
To adjust the mower deck height, locate the height adjustment lever and move it to the desired position. Ensure both sides are set to the same height for an even cut.