Ryobi Power Spray Painter Problems

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Ryobi’s power spray painter is designed to reduce strain on your back and arms and features a filter that picks up paint at its lowest point in the reservoir, which locks securely into place to prevent spills. Although the Ryobi power paint sprayer is designed to be almost trouble-free, you may periodically encounter problems such as improper spray or an overheated motor. These issues are often caused by dirty or worn out parts, which you can resolve on your own.

Things You'll Need

  • Water
  • Non-flammable thinner
  • Lubricant

Overheating Motor or Reduced/No Spray

  • Unplug your prayer and remove the paint container from the unit. Pour unused paint or stain into its original container.

  • Fill the paint container with warm water after using latex products or with a non-flammable paint thinner after using oil based paints or stains.

  • Re-attach the paint container to the sprayer unit and plug it in. Spray the contents onto a piece of cardboard or another piece of scrap material. Spray until the paint container is empty.

  • Unplug the paint sprayer and remove paint container. Turn the spray tip counter-clockwise and remove.

  • Remove the suction tube and filter which are located in the pump housing where the paint container attaches.

  • Inspect the atomizer valve assembly which is located behind the spray tip and clean with warm water. Replace the atomizer valve it you’ve run about 7 to 10 gallons of paint or stain through your sprayer.

  • Turn the locking nut located behind the atomizer valve assembly counter-clockwise to remove it. Slide the pump housing assembly off the sprayer.

  • Pull the piston and spring from the pump housing and use the brush provided with your sprayer to clean it.

  • Clean the vent hole inside the pump housing using a paper clip and wash all other parts of the sprayer using water or non-flammable thinner before reassembling.

  • Slide the spring off the piston and place a line of lubricant provided with your sprayer on the piston. If you do not have this lubricant, Ryobi advises substituting vegetable oil.

  • Replace the spring on the piston and insert inside the back of the pump housing. Reinstall the pump housing and push the locking nut into the housing while turning clockwise to secure.

  • Re-insert the atomizer valve assembly in the front opening of the pump housing and replace the spray tip. Turn clockwise to tighten.

  • Make sure you’re using a round-jacketed three-prong extension cord. The wrong type of cord can cause the incorrect amount of power to flow to your Ryobi spray painter and this can cause the motor to overheat.

Splatter, Globbing or Overspray

  • Check the paint container and refill if necessary. If there isn’t enough paint or stain in your sprayer, it will draw air, which may also cause spitting or globbing of paint or stain.

  • Thin the contents of the paint sprayer container according to the product manufacturer’s directions.

  • Check the suction tube, located in the housing which the spray container attaches to, and make sure it is installed securely.

  • Remove the spray tip to access the atomizer valve. Clean this with non-flammable thinner or warm water.

  • Clean the spray tip using water for latex paints or non-flammable thinner for oil based paints.

  • Turn the locking nut located behind the atomizer assembly counter clockwise and slide the pump assembly from the sprayer.

  • Remove the piston and spring assembly and wipe clean. Apply a line of lubricant to the piston and replace in the sprayer. Reassemble all other parts.

Tips & Warnings

  • Avoid using flammable liquids such as paint stripper or remover, brush cleaner, mineral spirits, turpentine, acetone, or gasoline to clean your sprayer or as a thinner.

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