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I have a central pheumatic stapler model 99640. When I used it, it shot out 2 'L' shape cleat (16G, 2") at the same time instead of 1 cleat. I tried to minimize the gap for the mouth, it end up jamed. Anybody has this experience and know how to solve the problem? Thanks a lot!

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I have noticed that some nailers with this problem have a driver blade that is slightly wider than the width of the cleat thus allowing the driver to actually hit part of the second cleat in the strip. To fix problem the driver blade should be slightly trimmed or tapered. File/grind the driver only on the side facing the cleats. Remove only enough metal to allow driver to hit only one cleat. Taper the grind up about 1/2 inch. This tapering is used on many different drivers including fraiming nailers to prevent the driver from hitting second nail on strip (mainly clip head nails). Only other remedy is to find thicker guage cleats that will still fit thru nose. Good luck with your repair

Posted on Oct 09, 2010

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You didn't list the make and model of your stapler but if it's not driving the staples flush with the surface here are some possible causes:
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Make sure you have enough Air pressure running to the stapler,
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