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Re-lubricate and Reattach O-rings and Filter

5:45
11:06
65.2K views

At 5:45 in

Cleaning A Graco Contractor II Gun. Repair an Airless Spray Gun.

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What happens here

After cleaning, begin the reassembly process. Take the needle and apply a small amount of O-ring lube to the smallest O-ring, then carefully place it back onto the needle in its designated flat spot. Repeat this for the larger O-ring, lubricating it with O-ring lube and placing it back onto the gun's handle. This lubrication is vital for smooth installation and to prevent the O-rings from pinching or tearing, ensuring a tight seal. Next, insert the cleaned filter back into the handle section of the gun, ensuring it is properly oriented.

Goal: Re-lubricate and attach all O-rings and the filter to their respective components.

Tools and materials

  • Filter Graco — Filtering paint
  • Gun handle Graco — Part of the gun's body assembly
  • Needle and packing Graco — Internal sealing component
  • O-ring lube — Lubricating O-rings

What they say

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Now I've set up spent about 30 minutes cleaning my gun in my lacquer thinner solution and we're going to begin the assembly process. And I've got the needle seat packing right here. And I'm going to You got three size O-rings. And I'm going to put those O-rings back together. I'm going to use a little bit of my O-ring lube right here. Lubricate this very tiniest O-ring. I'm going to stick that back on the needle. And you can see exactly it sets right down here in this little flat spot. You can see right where it goes in there. Going to put that O-ring back on. The larger O-ring right here goes on the handle. Going to lubricate that one. Stick it back down the handle. And this O-ring lube will help you assemble the parts a lot easier, too. And I cleaned those O-rings, got any dry latex paint off of them. I clean them with my Pro Gold Pro Towel that has um a citrus cleaner on it and clean those O-rings. The middle O-ring goes on back on the end of the gun tip side. And you can see it just sets right in there. Going to stick that O-ring back on. Make sure there's no dried paint on it. You can see a little bit of dried paint left on this one. I'll just clean it off with my fingernail here.

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