Disassemble Gun for Needle/O-ring Replacement
3:12
9:19
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At 3:12 in
How to clean & rebuild a Graco Contractor II gun. Graco Sprayer Tips.
What happens here
If the gun is leaking paint from the needle, it's time for a rebuild (recommended every two years). First, squeeze and hold the trigger. While holding the trigger, use a crescent wrench to unscrew the front part of the gun where the needle is housed. Once the front housing is removed, you will see the needle exposed. Next, unscrew the back of the gun, which releases the spring and allows the needle to be fully removed. Note that the needle has a small rubber O-ring.
Goal: Disassemble the spray gun to access and replace the needle and O-rings.
Tools and materials
- Crescent Wrench — Unscrewing the front and back housings of the gun
- Graco Contractor II Spray Gun Graco — The main tool being disassembled
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