Pressure Washer Maintenance Checklist

DEWALT pressure washer — cordless 20V/60V unit, 2100 PSI electric, and 3000 PSI gas model cleaning a driveway and car

Pressure Washer Maintenance Checklist

Regular maintenance helps your pressure washer perform efficiently and extends its lifespan. Whether you own an electric or gas model, a few simple checks after every use can prevent costly repairs.


Daily Maintenance

After every use:

  • Turn off the machine and disconnect the power.
  • Release any remaining water pressure.
  • Drain water from the hose and pump.
  • Clean dirt from the exterior.
  • Inspect hoses and fittings for leaks.

Weekly Maintenance

If you use your pressure washer regularly:

  • Clean the spray nozzle.
  • Check the high-pressure hose for cracks.
  • Inspect O-rings and seals.
  • Tighten loose connections.
  • Clean the water inlet filter.

Monthly Maintenance

  • Check the pump for leaks.
  • Lubricate moving parts if recommended.
  • Inspect the spray gun and trigger.
  • Test all nozzle tips.
  • Replace damaged accessories.

Gas Pressure Washer Maintenance

For gas-powered models:

  • Check engine oil.
  • Clean or replace the air filter.
  • Inspect the spark plug.
  • Check fuel lines for leaks.
  • Use fresh gasoline.

Storage Tips

  • Store indoors in a dry place.
  • Protect from freezing temperatures.
  • Keep hoses neatly coiled.
  • Cover the machine to prevent dust buildup.

Maintenance Checklist

✔ Clean machine after use

✔ Drain water

✔ Check hoses

✔ Clean nozzles

✔ Inspect O-rings

✔ Check pump

✔ Replace worn parts


Conclusion

A few minutes of routine maintenance after each use can significantly extend the life of your pressure washer. Following this checklist helps ensure reliable performance, prevents breakdowns, and keeps your machine ready for the next cleaning job.

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