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Reassemble the Gun

6:44
9:19
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At 6:44 in

How to clean & rebuild a Graco Contractor II gun. Graco Sprayer Tips.

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What happens here

After replacing or thoroughly cleaning the needle and O-ring, reassemble the gun. First, clean the gun housing completely. Insert the new or cleaned needle back into the gun, ensuring it passes through properly. Reinstall the spring, then screw the back part of the gun (spring housing) back on and tighten it until snug. Now, attach the front part of the gun. Remember the critical step from disassembly: squeeze and hold the trigger down while screwing the front part of the gun onto the threads. This prevents the needle from scarring the new or clean seat. Use the crescent wrench to tighten the front part until it is snug. Release the trigger.

Goal: Reassemble the gun with new or cleaned internal components

Tools and materials

  • Adjustable Crescent Wrench — Tightening the gun's housing parts
  • Needle — The main component controlling paint flow
  • O-Ring — Ensuring a tight seal around the needle

What they say

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part. Once you get the new one, just clean this gun out really good. Then you'll just set it back inside there. You want to make sure it goes through. You'll see the the two rails and they'll fall through. Once those rails fall through, we're just going to stick our spring back in. And you're just going to tighten this all the way down. It's good and snug. Never fails. Phone rings. Won't ring until you do a video. Crazy. Now you just take and screw this thing down. Now it's tight. Now we're on the end of the gun. Make sure, very, very important, actually squeeze that trigger. If you, if you don't squeeze that trigger, you will ruin the end of the ball. You'll scratch the ball and the gun will leak. You'll scratch the end of a brand new ball and the gun will leak again. Keep squeezing the trigger. Screw it back on till it's just tight. Release the trigger. Put the gun back together. The gun is ready to go. So, you can take that whole

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