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Stesso

Disassemble Fluid Side Diffuser

0:54
11:06
65.2K views

At 0:54 in

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

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What happens here

Using the 5/8 inch wrench, carefully unscrew the fluid side 'diffuser' at the top of the gun. It's crucial to squeeze and hold the trigger while unscrewing this part. If the trigger is released, the needle and seat inside could become scored, leading to potential leaks in the future. Once loosened, fully unscrew and remove the diffuser, noting the small O-ring on it, and place it into a cup for cleaning.

Goal: Remove the fluid side diffuser without damaging the internal needle and seat.

Tools and materials

  • 5/8 inch Wrench — To loosen and remove the diffuser
  • Graco Contractor II Gun Graco — The main assembly being worked on
  • Plastic Cup — To hold the removed diffuser for cleaning

What they say

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the two ends of the top of the gun off. And when you actually begin taking the fluid side section of the gun off, you want to make sure you squeeze the trigger. Squeeze the trigger cuz there's a needle and a seat that sets inside there. And if you try to unscrew this thing with the trigger let go, it could actually score the end of that needle. And then you'll actually get your gun possibly it'll possibly leak once you actually put it back together. So squeeze that trigger. Going to take Sometimes those things are on fairly tight. Loosen it up. Got it off. And I'm going to unscrew it all the way. And I got one part right here. And this part's got a little O-ring on it. And I've got a cup I'm going to be putting my parts in there.

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