Murray 42538x30A Parts Manual

To start the Murray 42538x30A Tractor, ensure that the tractor is on a level surface, the brake is engaged, and the PTO switch is off. Insert the key into the ignition and turn it to the 'start' position. Once the engine starts, release the key.
It is recommended to use SAE 30 oil for temperatures above 32°F (0°C) and SAE 5W-30 for temperatures below 32°F (0°C) in the Murray 42538x30A Tractor.
The oil should be changed every 50 hours of operation or at least once per mowing season, whichever comes first.
If the tractor won't start, check the battery connections, ensure the spark plug is clean, verify that the fuel tank has fresh fuel, and make sure the safety features are properly engaged.
To adjust the cutting height, move the height adjustment lever located near the driver's seat to the desired position. Ensure the tractor is turned off and the blades are not engaged while making the adjustment.
Check that the blades are sharp and properly balanced, ensure the tire pressure is equal on all sides, and verify that the cutting deck is level.
After each use, wash the mower deck with a hose to remove grass clippings and debris. Avoid using high-pressure water as it may damage the components.
Excessive vibration may be caused by unbalanced blades or debris caught in the mower deck. Inspect and clean the deck, and ensure the blades are properly balanced and tightened.
To replace the spark plug, disconnect the spark plug wire, remove the old spark plug using a socket wrench, and install a new spark plug. Make sure to set the correct gap according to the manual before installation.
Regular maintenance includes checking and changing the oil, replacing the air filter, inspecting and sharpening the blades, checking tire pressure, and cleaning the mower deck.