A few months ago I posted regarding a problem with my front door's Abloy: after locking it, rotating the key back to the vertical position for key removal would usually start to retract the deadbolt - which obviously it shouldn't do until the key is rotated much further. I'd go back and forth a few times, and eventually the deadbolt would stay in the locked position and the key could be removed. I was curious if this could indicate the need for cleaning, and you folks replied in the affirmative.
I yanked the mechanism, threw it in the ultrasonic cleaner with paint thinner, and sure enough some visible black grunge was blasted out of the guts. I*lightly* lubricated with a dry road bicycle chain lube (ProGold) and reinstalled. The problem disappeared. Thanks, everyone.
Since that time, I've developed another problem, and it's getting worse: it is getting harder and harder to unlock the door. Turning the key to the point at which the deadbolt would normally start to retract hits a stop - the key just won't turn. I have to go back and forth and back and forth, and eventually (10 times?) the lock opens up with its usual silky smoothness.
Yesterday it took close to fifty times, and I was starting to picture being locked out of my own house.
This guy is about 15 years old. Could something this industrial be wearing out? Or does someone have experience with this issue to suggest a cure? I'm quite fond of the lock and appreciate having something a bit beyond the ordinary.
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