Pressure Washer Maintenance Tips

Most of these practices take very little time and cost very little to do! It’s time and money well spent when it comes to maintaining your pressure washing equipment.


  • COLD WATER RINSE after using the burner. Turn off the burner switch, and run cold water until the water feels cool to the touch, takes 1-3 minutes.
  • Change ENGINE OIL every 3-6 months or every 50-100 hours. Engines vary so refer to the owners manual.
  • Change PUMP OIL annually at minimum or every 300 hours, whichever comes first. Use 30W – NON DETERGENT.
  • Only use DETERGENTS APPROVED to run through pressure washing equipment; failure to do so could damage the pump and coil – both costly to fix.
    Check HOSES, NOZZLES and WANDS for wear daily and replace as needed.
  • Replace O-RINGS or stop leaks quickly to save life on the pump un-loader.
  • Stick with ONE TYPE OF FUEL – diesel or kerosene to fire the burner. Should see a clear vapor over the coil; no white or black smoke should be visible.
  • Training, TRAINING, training. Make sure operators understand equipment and proper maintenance procedures.


  • Do NOT let WATER FREEZE anywhere in the unit, it will ruin the machine. (Be prepared to Winterize Your Pressure Washer)
  • Do NOT leave the PUMP IN BYPASS longer than 3-5 minutes. When walking away from the machine a good rule of thumb is to turn it off!