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How to strip down a hilti dx450 nail gun - Tools & Hardware - Others

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I suggest calling 1-800-879-8000 or going to the website and downloading a schematic for this tool. Let me know if you need more help

Posted on Sep 16, 2009

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When you take the cocking lever and go foward with it to advance the booster strips you will notice that it is connected to a lever on top of the tool housing. With the cocking lever foward you put your finger on the lever on the housing holding it foward. Come back slightly with the cocking lever will release it. Then you can unscrew the front baseplate and remove the front guide, piston and piston guide. I would not suggest you go any further than that.

Posted on Oct 09, 2009


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Driver slides over the top of the nail bending it and jamming it. It will drive the 1st nail then jams.

Most jamming is caused by either wrong type of nail in gun or the driver blade tip is no longer square. Easy to check both. With nails removed strike nose of gun down against rubber mat or soft wood to move driver down for examination. It should look square. If edges look rounded or chipped, remove driver and use grinder to adjust. To check nails for good fit, lay a strip of nails on the magazine. Align the first nail with the center line of the path of the driver. The rest of the strip of nails should align with the angle of the rails on the magazine + or - 5 degrees ok but any more difference will cause jam. Good luck

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Why is my hilti gx120 nail gun nail gun reading gas as empty when it's full

AR you pushing down on the tip of the air gas tip. Are the gas cartridges old?

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1 Answer

Hilti dx450

I would not try to do this job your self as if you manage to put it to back together and something's not right it will cause you injury. would take it to some who knows what they are doing with this model.

Oct 04, 2013 | Home Fencing

1 Answer

Need nails for RN312 Framing Gun

Special order only and they are expensive. We used to sell the Spotnails MNS5 which was the same tool as the Hilti. All we have left are some 8 penny nails. We have inquired about more as Spotnails does not produce them anymore and the cost wasn't worth it. You will be better off to buy a newer gun that shoots a more common nail.

Jul 31, 2012 | Air Tools & Compressors

1 Answer

Can anyone help. ive got a hilti dx450 that won't fire, ive stripped it down and given it a good clean but still no luck getting it to work. could anyone tell me if there should be some sort of firing...

You are correct on the firing pin. Those rim fire caps have to be struck by a firing pin or it won't fire. Pull the head apart and see is the firing pin stuck or missing.

Oct 03, 2017 | Cars & Trucks

1 Answer

I have an old hilti DX450 and some parts must be missing, would you have a picture of the nail gun with all the parts listed Thank you


Mar 03, 2011 | Home Fencing

1 Answer

I have had to strip the nail gun down to get water out of it after being flooded. What type of grease or Lubricant do I use when re-assembling

Most nail gun manufacturers make an assembly grease but a light grease like lithium will work, it's just to lube the rings during assembly. Most of it will get washed away by the gun oil you put in the gun each time you use it.

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My husband has a Hilti RN312 nail gun and can not find nails for it, do you have an idea where we could find some?

The company below sells a full line of nails for your gun. The rn312 uses 17 degree nails and can be ordered from Good luck with your nailing projects.

Aug 05, 2010 | Hilti Tools & Hardware - Others

1 Answer

With the finish pro 35 can you use any 15 gauge strip of nails,glued or plastic strip

i believe that gun takes 16 gauge nails, and yes, all 16 gauge nails are the same, as long as they are strait, not angled

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I have bought a tacwise 140EL nailer/stapler. I

Turn the gun upside down and pull out the black plastic loading thingy, drop the nails in the left hand side of the gun,press against side with finger and slide black loading bit back over top of nails-hey presto!

Oct 13, 2009 | Tools & Hardware - Others

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