Storing a Hot Water Pressure Washer

ENGINE: The engine instruction manual accompanying your unit lists specific procedures for maintenance of the engine. Following the engine manufacturer's recommendations will extend engine life.

PUMP: Change the pump oil after the first 50 hours of operation. After initial change, every 3 months or 250 hour intervals are recommended. If oil appears dirty or milky, changes may be required in greater frequency. Use Mi‑T‑M pump oil #AW-4085-0016 and fill only to the center of the oil sight glass. DO NOT overfill.

COUPLERS: There are o-ring seals inside the couplers which will deteriorate. To replace, simply install a replacement o-ring to correct the leak. (Additional o-rings can be purchased from your dealer.)

NOZZLE: Water flow through the spray nozzle will erode the orifice, making it larger, resulting in a pressure loss. Nozzles should be replaced whenever pressure is less than 85% of the maximum. The frequency of replacement will depend upon such variables as mineral content in the water and number of hours the nozzle is used.

FUEL WATER SEPARATOR: The fuel filter has a built in water separator. Occasionally the water has to be drained from the separator. Follow the procedures listed below:

  1. Check the collection bowl daily.
  2. Ensure the unit is off and place an oil catch basin under the fuel cartridge.
  3. Loosen the drain plug to allow the fuel/water contaminants to flow into the catch basin.
  4. Retighten the drain plug when completed.
  5. Dispose of drainage according to environmental regulations in your area.