Disassemble Fluid Section and Handle

0:49

11:06

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

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What happens here

Begin disassembly by unscrewing the fluid side "diffuser" from the top of the gun using the 5/8 inch wrench. It's crucial to squeeze and hold the trigger while doing this. This action retracts the internal needle, preventing it from being scored or damaged by the seat as the diffuser is removed. Scoring the needle can lead to leaks. Once loosened, unscrew the diffuser completely by hand and place it into a designated cup for parts. Next, unscrew the other end of the gun, which includes the handle assembly. This part does not require the trigger to be held during removal. After unscrewing, an internal spring and the needle assembly will be accessible.

Goal: Safely remove the fluid side diffuser and handle assembly to expose internal components for cleaning.

Tools and materials

5/8 inch wrench — Loosening and removing gun sections
Cup for parts — Collecting small disassembled parts
Graco Contractor II Gun Graco — The spray gun being disassembled

What they say

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together. And I'm done with my 5/8 inch wrench. And going to get ready to take 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. I'm going to take the other end of the gun off. And this this end of the gun's not essential to actually pull the trigger. I actually just hold the trigger cuz I'm squeezing onto the gun. So, I'm just holding the gun tight so it doesn't fall. Now, this end of the gun comes

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