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Insert New Packing and Reassemble Gun

4:42
10:41
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At 4:42 in

HVLP Gun Repair Tip. Repacking A Maxum Spray Gun.

What happens here

After cleaning the gun thoroughly with a solvent like lacquer thinner or acetone, drop the new Teflon packing into the appropriate slot. This often requires some dexterity, possibly using a pick to guide it, as the opening is small. Once the packing is seated, reattach the packing nut. It's important to only hand-tighten the packing nut initially to avoid damaging the new packing. After the packing nut is installed, insert the lubricated needle into the gun from the back, ensuring it slides in smoothly. Finally, reattach the nozzle assembly to the front of the gun.

Goal: Carefully insert the new Teflon packing into the designated slot, then reattach the packing nut, making sure not to overtighten it. Reassemble the rest of the gun components including the needle and nozzle.

Tools and materials

  • 10mm Wrench
  • Picks from Cleaning Kit
  • Titan Piston Lube (or similar lubricant)

What they say

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replace it so now to replace the the packing of the gun just want to make sure this gun is now it's all torn apart make sure you clean it extremely well black or thinner i like using acetone to clean my guns out this packing is just going to drop right in the back and it's going to have to just use your fingers to try to get it in there and get this packing to drop in there you know there's no front side or back side but they're just up and down so you kind of got to work it that's where your picks can come into handy you can grab a pick you can set that down there and i just dropped it right in there using my pick there's a lot of different shapes of picks in my kit right here and we have these things available at paint life supply now you're going to take your the packing nut i'm going to put this back in there this is where it kind of gets a little bit difficult but there's no easy way i'm trying to hold this trigger up and then i'm trying to drop that knot down inside there straight in once i get it straight i can start with my fingers and once again i'm trying it's not easy for me to do on and show on video but we'll try to get it in here best we can this technique this is a new technique i'm trying that's not working here i'll try to do it like this way oh my gosh there we go got it in there so now once your packing nut is in there and all the frustration is gone trying to balance that and get your fingers in there and twist that thing in now i'm going to take my 10 10 millimeter wrench and tighten this up now this is a very critical step and putting this packing in and tighten this nut you're going to cinch this up just until it pushes that packing in and seats it so not very tight at all i don't want to just tighten and wrench it down so this is a critical part so i'm tightening up and i feel that it's once i feel it's seated down in there i feel like it's seated now all right so now once you've get the packing in there and your um packing nut has tightened down not over tighten we're going to install our needle now another step just to get that needle to slide in there easily easily or a little bit more easy and to lube the packing i'm just going to rub down my needle if you've got some piston lube so tighten piston lube i can just rub some of that on my needle it's going to make it glide in lubricate that teflon packing so i'm going to stick my needle back in it's going to glide right in now i can take my cap it's going to screw my cap right back…

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