Murray 385012x68B Parts Manual
![Murray 385012x68B Tractor manual cover](/images/RMyZWEpqtwZRCrVLQBbBdsMf/thumbs/thumb175x175.webp)
To change the oil, first, run the engine for a few minutes to warm it up. Turn off the engine and disconnect the spark plug. Place a container under the oil drain plug, remove the plug, and let the oil drain completely. Replace the drain plug, refill with new oil, and reconnect the spark plug.
It is recommended to use SAE 30 motor oil for temperatures above 32°F and SAE 5W-30 for temperatures below 32°F. Always check the owner's manual for specific oil recommendations.
Ensure the fuel tank is not empty and the fuel is fresh. Check the spark plug for fouling or damage and replace if necessary. Make sure the air filter is clean and the battery is charged. If the problem persists, inspect the ignition system.
Clean the tractor thoroughly, removing all debris and grass clippings. Change the oil and air filter. Add fuel stabilizer to a full tank of gas to prevent moisture accumulation. Remove the battery and store it in a cool, dry place. Cover the tractor to protect it from dust and moisture.
To adjust the cutting height, locate the height adjustment lever, typically found near the driver's seat. Move the lever to the desired position to raise or lower the mower deck. Ensure both sides of the deck are at the same height for an even cut.
Excessive vibration can be caused by unbalanced or damaged blades, loose components, or debris stuck in the mower deck. Inspect the blades for damage and balance, tighten any loose parts, and remove any debris from the deck.
To replace the spark plug, first disconnect the spark plug wire. Use a spark plug wrench to remove the old plug. Check the gap on the new spark plug, adjust if necessary, and install it by hand to avoid cross-threading. Tighten with the wrench and reconnect the spark plug wire.
Check the PTO (Power Take-Off) switch to ensure it's in the 'engage' position. Inspect the mower deck belt for wear or damage and replace if necessary. Verify that the battery is fully charged and the safety interlock system is functioning properly.
It is recommended to sharpen the mower blades after every 25 hours of use or at the beginning of each mowing season. Dull blades can tear the grass, leading to an uneven cut and potential lawn damage.
Use a tire pressure gauge to check the pressure in each tire. Refer to the manufacturer's specifications for the correct PSI. Inflate or deflate the tires as needed, and regularly inspect them for wear or damage. Proper tire pressure ensures optimal traction and performance.