Install New Needle Assembly and Trigger Pin

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How to Repack or Repair A Graco Airless Spray Gun. Graco airless gun repairs.

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What happens here

Take the new needle assembly from the Graco packing kit. Carefully drop the new needle assembly into the gun, ensuring that the small hole in the assembly aligns perfectly with the opening for the trigger pin. Insert the new trigger pin (also from the packing kit) through the trigger and the aligned hole in the needle assembly, allowing it to pop through the other side. Finally, screw the new nut onto the pin and tighten it securely using the 9/32 inch socket and crescent wrench.

Goal: Secure the new needle assembly within the spray gun body.

Tools and materials

9/32 inch Socket — Tightening the new trigger pin nut
Crescent Wrench — Holding the bolt while tightening the new trigger pin nut
New Needle Assembly Graco — Replacing the old, worn needle assembly
New Pin Nut Graco — Securing the new trigger pin
New Trigger Pin Graco — Replacing the old trigger pin

What they say

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Now we're going to begin installing our new needle assembly. And our new needle assembly is right here. Going to drop that right down inside. And you want to see there's a hole in the needle assembly. You want to make sure it goes right through. You can stick your new pin down through the trigger. It's going to pop through the other side. And now we're going to screw our new nut on there.

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