I do not own any power nailers but have seen many brought into the work place (read goverment projects
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) The compressed air models for roofing could be notorious for being filled up with shingle sand. We figured that once the gun was fired, the immediate rush of air that was drawn in to replace the air that had been displaced created a slight vacuum that would cause this.
Perhaps the gun that is used for the framing does the same thing but draws in small amounts of saw dust? at any rate, cleaning up the inside of the guns was much more common than having to replace a seal depending on the usage.
Dale, Ouch & Ouch!!!
I have had a couple incidents with the Chainsaw over a 10yr period but thats another story!...I still have all of my appendages though
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