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Stesso

Clear Obstruction and Reassemble Hose

3:21
6:04
547.4K views

At 3:21 in

How To Fix An Airless Sprayer That Is Not Priming.

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What happens here

Once the lower fluid section is exposed and any debris in the hose has been cleared, reach inside the fluid section to dislodge any obstructions from the ball check valve. The presenter suggests using a small flathead screwdriver, a 'five-in-one' painter's tool, or needle-nose pliers to reach inside and clear the obstruction. The goal is to free the ball, allowing it to re-seat properly. After clearing the debris, reattach the intake hose by pressing it firmly back into the lower fluid section until the retention spring clicks into place.

Goal: Remove debris from the ball check valve and reattach the intake hose.

Tools and materials

  • Airless Paint Sprayer Graco — The sprayer being serviced
  • Flathead Screwdriver — To reach inside and clear debris from the ball check valve
  • Intake Hose — The hose being reattached
  • Needle-Nose Pliers — Alternative tool for clearing debris, especially if the retention spring is broken

What they say

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ball to seat improperly. Now, just to replace our fluid hose, we're just going to stick our fluid hose back up inside there. We're just going to press it all the way up inside. And then got our springs in the way here. It's going to push up inside there and it'll go up inside just about an eighth of an inch. And you're going to see a ring inside there that your retention spring falls into. Going to squeeze that retention spring. Place that back inside there. With this retention spring broken, it's a little bit harder to reinstall, but got it in there. Need to order myself a new retention spring. That way, I don't have to use a pair of needlenose pliers to remove it. So, typically you can fix that problem with the sprayer not priming with no tools. Sometimes the piece of debris that's up inside there that won't pass through

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