Question about Makita AF505 2" Brad Nailer

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I have a Mikata AF505 brad nailer that won't fire. The idler does not depress the firing pin, but I can depress the pin with a screwdriver and a brad is ejected properly into a piece of wood. It worked fine the last time I used it, probably a couple of months ago. What could be causing this problem?

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Posted on Jan 02, 2017

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SOURCE: porter cable brad nailer only fires brad on second trigger pull

The dent in the wood is not caused by the air. It's caused by the set that drives the brad. Are you oiling it consistenly? Are the brads the right manufacturer for your porter cable brad nailer? From the information you give it appears that the brads are not advancing correctly or that the air pressure is not sufficient to dislodge the brad from the brad strip on the first strike - it takes an additional strike to break it free. The standard for adding oil is to add ten drops of air tool oil for every hour of operation. That seems like a lot, but the correct amount of oil is a sure way to prevent most air tool problems.

Posted on Aug 29, 2009

Testimonial: "Thanks for the info. I was not oiling it at that rate. Is there anything I can do to fix the issue now that I didn't prevent it?"

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