My town always does a 4th of july flea market/community wide garage sales/junk show. ... Often its way overpriced junk/treasure and fun to look at but seems the auctions are much better way to find deals. In fact i saw a few folks selling the same stuff they got at auctions over the past year for 200% markup or better.
But when driving past yard sales i saw a full table of bright green ryobi power tools from the road. I had to stop and get a better look. Had several drills, impacts, palm sander and then two items that caught my eye, a buffer and a cailk gun. I already have some ryobi 18v batts anyways (really prefer my dewalts tho) but i figured what the heck.
Talked him down from 50 to 30 for the pair so $15 a peice. He didn't have a chrged batt to test them tho so i was nervous.
Get home and the buffer powers right up no problem. Great. Switch batt to the caulk gun and nothing happens. I think, damn, serves me right. Should never bought a used batt tool especially untested.
So i figure im stuck lets take it apart see if a battery lead is broken or something easy/obvious.
Get the plastic split and there's a crazy lookong gunk build up on a half inch dia area near the rear of the gun. Start picking it out and some nasty maggot but **** is stuck in it. There was such a nest built up it expanded and closed the shut off switch to stop the motor when the caulk tube is empty. I know, no pic or it didnt happen so....
I got it apart, cleaned out, and back together in probably 15 mins and now it works fine. Or at least seems too, have to get a caulk project to be sure but at least the motor spins and the bar moves.
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