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MY PNEUMATIC STAPLE GUN WON'T WORK/ looses air through firing lever.How do I repair it? Where do I put the oil in?

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  • David Ford
    David Ford May 11, 2010

    What is the brand and model number and I will try and help



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I would agree with rowdy that the make and model number are essential to getting the right parts - If you have that information, just find a dealer that supports your brand. That being said, air leaking out the trigger area is likely to be an O-Ring or Seal problem. Pneumatic staplers have O-rings and Seals that need to be replaced periodically. Most have rebuild kits available that contain all the O-Rings and Seals that need to be replaced. Many staplers have O-rings and/or Seals on or near the trigger shaft that can wear and allow air to leak out

Posted on Mar 14, 2009


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3 Answers


First, undue the four cap screws that hold the manifold on, re: top of the gun, then remove the "driver blade", with needle nose pliers. There will be a little "***", grab it with the pliers and pull straight out.

Once the driver blade is out, remove the o'ring at the top. Wrap some teflon tap around the crack where the driver blade o'ring sits about two spins with the teflon tape, then re-insall the o'ring.

put back together.

Oil goes in the "air inlet fitting at the back of the gun where the air hose hooks up, just couple drops of pheumatic air tool oil, re: 30 weight non-detergent oil, like sewing mahine oil ect. its available everywhere.

Make sure you install the driver blade the way it came out, so "watch" as you remove it. If the driver blade is busted, or cracked you'll have to replace it, can get them at any tool store or on line. about 20-40 bucks.

should work fine.

UPR, Under Pressure Repair Ent.
Kelowna, BC Canada.

Mar 11, 2009 | Tools & Hardware - Others

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