Pressure Washer Maintenance Guide

After the final use of the year, pressure washers are frequently put away without undergoing any necessary maintenance. Because these machines are used to clean demanding substances like mud, mold, grime, and graffiti, they endure significant wear on the job.  

To ensure several years of service, it is essential to follow specific maintenance procedures both before and after use. Adhering to these steps will help extend the unit's lifespan for many seasons. 

Power Washer Maintenance 

Regular maintenance ensures the safety and dependability of a pressure washer. The following steps should be followed to ensure the unit remains in proper working order. 

Before Using: 

1. Check O-Rings: Inspect the O-rings on the ends of the high-pressure hose for wear and tear. Damaged O-rings can cause serious problems, including leaks and potential injury. Any damaged O-ring should be replaced prior to use. 
2. Secure the Nozzle: Check the nozzle at the end of the wand to ensure it is locked securely in place. 
3. Clear Debris: Care should be taken to never plug the nozzle with debris, dirt, or other obstructions. 
4. Check Fuel and Oil: For gas-powered units, ensure fresh gas and oil are present before starting. Gasoline that has been sitting since the previous season should not be used. If the gas is old, a stabilizer should be added, and the tank topped off with fresh gasoline. 
5. Inspect Spark Plugs: Check the spark plug for corrosion. A corroded spark plug can cause starting difficulties and inefficiency; it should be replaced before operation. 
6. Keep the Spray Open: The spray nozzle should be kept open while the unit is running. Leaving the machine running with the nozzle closed can build pressure in the hose, which could cause damage. 
7. Ensure Water Flow: The pressure washer should never be run without an adequate water supply. An insufficient water supply can cause internal pressure to increase excessively. 

After Using: 

1. Power Down: Switch the power to "Off" and unplug the unit. This should always be the first step to avoid injury or equipment damage. 
2. Clean Chemical Intake: Locate the chemical/detergent intake and clean it thoroughly with water. Any residue or buildup must be rinsed away until the water running out of the intake is clear. 
3. Remove External Grime: Wash away dirt and grime from the unit to prevent erratic behavior during future use. 
4. Drain Excess Water: All excess water should be drained before storage. Water left inside the machine can attract insects or promote the growth of mold and bacteria. 
5. Proper Storage: Store the pressure washer in a well-ventilated area away from the elements, such as sun, rain, and snow. The storage location should be inaccessible to children to prevent injury. 

Important Note: 

Always follow manufacturer instructions regarding the use of the pressure washer, and the unit must be maintained properly to ensure the safety of the operator and others. 

If a pressure washer or high-pressure hose shows any signs of wear and tear, use should be discontinued immediately. A new hose should be purchased; repairs to a high-pressure hose should never be attempted. If the unit itself is damaged or excessively worn, it should be taken to a repair shop or replaced with a new unit.