Murray 385003x52A Parts Manual
![Murray 385003x52A Tractor manual cover](/images/OBBzRKySgMHZQYEZqTxOEPlH/thumbs/thumb175x175.webp)
To change the oil, first locate the oil drain plug beneath the engine. Place a suitable container under the plug, unscrew it, and allow the old oil to drain completely. Replace the drain plug and refill the engine with new oil as specified in the user manual.
Use a spark plug type that matches the specifications in the owner's manual, typically an RJ19LM or equivalent. Ensure the spark plug gap is set correctly before installation.
Blades should be sharpened at least once a season or every 25 hours of use. If you notice uneven grass cutting or torn grass blades, it may be time to sharpen the blades.
Check the battery connections and ensure they are clean and tight. Verify the fuel level and condition, ensuring it's fresh. Inspect the spark plug for wear or damage. If the problem persists, consult a professional technician.
To adjust the cutting height, locate the adjustment levers near each wheel. Move the levers to the desired position, making sure all wheels are set to the same height for an even cut.
Before storing, clean the tractor thoroughly, change the oil, and run the engine until it runs out of fuel to prevent carburetor issues. Remove the battery and store it in a cool, dry place. Consider using a fuel stabilizer if fuel is left in the tank.
An overheating engine might be caused by blocked airflow, low oil levels, or a dirty air filter. Clean any debris from the engine cooling fins, check the oil level, and replace the air filter if necessary.
First, disconnect the spark plug wire. Remove the mower deck and locate the drive belt. Carefully remove the old belt and position the new belt following the belt routing diagram in the manual. Reinstall the mower deck and reconnect the spark plug wire.
Excessive vibration could be due to unbalanced or damaged blades, loose components, or worn pulleys. Inspect the blades for damage, and check all bolts and pulleys for tightness and wear. Balance or replace blades if necessary.
To clean the carburetor, first remove it from the engine. Disassemble it carefully and clean each part with carburetor cleaner. Reassemble the carburetor and reinstall it on the engine, ensuring all connections are secure.