Extract Needle, Spring, and O-rings

2:00

11:06

65.2K views

At 2:00 in

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

Watch on YouTube

What happens here

After removing the handle, locate the needle. Often, the needle may be gummed up with dried paint and stuck. Use a non-metallic tool, such as the plastic handle of an old toothbrush, to carefully push the needle out from the rounded side towards the back of the gun. Avoid using metal tools that could scratch the needle. Note that there's a small O-ring on the needle's packing. Remove the internal spring and also the O-rings from the handle and the fluid section using the small flathead screwdriver. Be extremely careful not to damage or stretch these O-rings, as they are crucial for sealing. If replacing packings, new O-rings are typically included. Place all these components into the lacquer thinner for soaking.

Goal: Extract the internal needle, spring, and all O-rings from the gun body.

Tools and materials

Cup for thinner — Soaking disassembled parts
Graco Contractor II Gun Graco — The spray gun being disassembled
Plastic toothbrush handle — Pushing out the needle without scratching it
Small flathead screwdriver — Carefully removing O-rings
Lacquer thinner — Soaking gun parts

What they say

(1,658 characters)

Hide

fall. Now, this end of the gun comes off. I'll just drop that down. There's a spring inside there. And now the seat, the needle and seat is sitting inside there. And you've got to take and press the needle out from the round side. It's going to be pushed out the back of the gun. A lot of times this needle's in there is in there pretty hard. It's gummed up and it doesn't come out. Sometimes you can push it out with your hand. Again, I just got it pushed out with my plastic toothbrush. Got that thing. It's pretty gummed up. And this one gun was leaking. were having problems. Couldn't get it cleaned good enough. So, it's got a lot of gunk and around it. And it's probably why it was sticking pretty bad. Just a lot of built up. It's been about 2 years since we cleaned this one. Just going to drop those parts. Now, I can just take and unscrew the bottom part of my gun apart again. Going to pull that apart. There's an O-ring on this part of the gun, too. Going to pull out my filter. I'm gonna take and drop all my parts in into lacquer thinner. I can begin cleaning those parts. Before I drop them into lacquer thinner, there's going to be three O-rings, too. There's And I'm going to use my little tiny flathead screwdriver. I also have a Pro Gold Pro Towels that I actually use to actually clean my hands while I'm working, too. they start to get too greasy and dirty. Pro Gold Pro Towels work excellent for cleaning your hands. And it's a citrus based cleaner on those towels. It'll take any grease and grime off your hands. So, I'm going to pull off the O-ring off the handle. There's a O-ring off on the fluid section part of the end of the gun.

Auto-generated from the video audio.