John Deere 125 and 140 High-Pressure Operator's Manual
![John Deere 125 and 140 High-Pressure manual cover](/images/1a35afbd2713c01ec96e9452/thumbs/thumb175x175.webp)
To start the John Deere 125 high-pressure washer, ensure the water supply is connected, turn the water on, then switch the fuel valve to the 'on' position. Pull the choke lever to start if the engine is cold. Pull the starter cord briskly. Once started, gradually push the choke lever back in.
It is recommended to check the oil level before each use and change it every 50 hours of operation. Clean the water screen regularly and inspect the high-pressure hose for any leaks or damage. Additionally, replace the spark plug annually or after 100 hours of use.
If the John Deere 125 pressure washer isn't building pressure, check for a blocked nozzle, inspect the water inlet for obstructions, and ensure the high-pressure hose is not kinked. Ensure there are no leaks in the system and that the pump is working correctly.
To winterize your John Deere 140, drain all water from the pump, hoses, and gun. Add a pump saver antifreeze solution to protect the pump from freezing. Store the washer in a dry, sheltered location to prevent any damage from cold temperatures.
The recommended oil for the John Deere 125 high-pressure washer is SAE 30 for temperatures above 40°F (4°C) and 10W-30 for temperatures below 40°F (4°C). Always ensure the oil is clean and at the correct level before operation.
To clean the nozzle of your John Deere 140, turn off the machine and disconnect the spray wand. Use a nozzle cleaning tool or a small piece of wire to clear any debris from the nozzle. Rinse with water and reconnect the wand.
Water leaking from the pump of a John Deere 125 may indicate worn seals or gaskets. Inspect the pump for any visible damage and consider replacing the seals. Ensure all connections are tight and not cross-threaded.
To adjust the pressure on the John Deere 140, use the adjustable nozzle or replace it with a nozzle of different orifice size. For specific adjustments, consult the user manual for instructions on adjusting the unloader valve if applicable.
If the engine won't start, check for fuel in the tank, ensure the fuel valve is on, and verify the spark plug is clean and connected. Ensure the choke is set correctly and inspect the air filter for blockages. If problems persist, consult a professional technician.
The spark plug on a John Deere 140 should be replaced annually or after every 100 hours of use, whichever comes first. Regular replacement ensures efficient engine performance and reduces the risk of starting issues.