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Disassemble Gun and Remove Old Packing

2:06
10:41
12K views

At 2:06 in

HVLP Gun Repair Tip. Repacking A Maxum Spray Gun.

What happens here

Start by removing the needle from the back of the gun. Unscrew the back nut that secures the needle and packing. The demonstrator shows using a pick to push the old packing through the mechanism, and then using a needle-like pick to reach in, grab, and pull out the old packing. In the example, the old Teflon packing had unwound into a tape-like string due to wear, emphasizing the need for replacement.

Goal: Disassemble the sprayer by removing the needle and the back nut, then use specialty picks to carefully extract the worn Teflon packing. Note that the packing may appear as unwound Teflon tape if severely damaged.

Tools and materials

  • 10mm Wrench
  • Picks from Cleaning Kit
  • New Teflon Packing

What they say

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to have so to remove the packing i um took off the needle and the nut off of the back the back nut off the back of this gun right here to remove the packing what that's going to look like on this maximum two gun right here we're just going to remove the back cap that has the needle exposed we're going to pull this needle out here's the needle set the side don't want to damage that needle don't want it to fall in the ground keep in a safe spot because it can just roll right off your table whatever you're working on you're gonna have a knot right on the back here that's going to have the packing behind that i'm just going to use a 10 millimeter wrench to remove this nut to expose the packing back there and it's not like super easy to get to um it's easy to take off but not so easy to put back on so i'm just going to unscrew this nut and it's this brass nut right here i'll just use my needle just to point to it that's the nut right there just gonna unscrew that pull the trigger back just with my fingers unscrew it it's going to come off and that's the packing nut that's what keeps the packing pushed in there and tight and sealed so i'm going to remove that set that aside you're going to want to clean that thing now to remove the packing and put a new packing in if you're going to remove it you're going to have to take off the front of your gun here and then you should have one of these tools right here that comes with your gun to unscrew the needle nozzle set right here and that's going to expose the inside where you can actually you know get in there and push out the old packing packing is not going to go into this side it's going to go into the back side so this gun i've already removed the packing what happened is um with one of the this gun right here it was leaking out of the trigger we had another gun customer was cleaning and they noticed a piece of the teflon this teflon was sticking out didn't know what it was reached in with um some needle nose grabbed it and started unwinding this teflon pack and it's really it's kind of just like teflon tape pipe tape so it's just just kind of wrapped up and that was sticking out of the gun customer started pulling on it and all of a sudden the packing starts unwinding now the gun's going to leak so you're going to have to replace it so now to replace the the

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