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My BEX pneumatic staplegun stopped working, looses air through release lever. How do I service it? And also, where do you put the oil in?

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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.

Posted on May 18, 2009

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You need an overhaul kit for the stapler. Sounds like an O-ring is leaking or damaged causing air to release. If it is a decent, named brand stapler, the manufacturer usually offers overhaul kits to replace o-rings and gaskets etc.

Regarding the oil, you simply put a drop or two of air tool oil into the air connector that you hook up to the air hose. When the stapler is fired, the compressed air blows and distributes the air tool oil throughout the stapler. Usually you only need one or two drops before each daily use, but if you are firing a lot of staples in a day (say 400-500 etc), an extra drop or two after lunch or half way through the project won't hurt.

Posted on Mar 13, 2009

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Put the oil into the air chuck attached to the staplegun every second or third time you use it before attaching your air hose. only a drop or two is lots.

Posted on Feb 20, 2011

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