Hi all,
I have a Trek U-lock (says it's made "by kryptonite") that has developed a nasty habit.
Every once in a while, when you put the key in the lock it will get stuck and, though still keeping about 90% of its turning range, it won't come out unless you spray WD40* or similar on the lock and turn the key back and forth several times.
Doesn't seem to make a difference if you close the lock "empty" or with the U-rod, if you turn the key fast or slow, or if you push/pull the key while doing so. Only the WD40 seems to make a difference. Since the lock seems made of thin metal sheets, and the grooves on the key are quite sharp, I don't know if a touch of flint paper on it would help or make things worse.
So, is there a way to solve the problem, or it's time for a new U-lock? Any idea of what is causing this mess (worn out/loose lock, perhaps)?
* I've read I should have used graphite powder... but when you're in a hurry a spray works better.
I have a Trek U-lock (says it's made "by kryptonite") that has developed a nasty habit.
Every once in a while, when you put the key in the lock it will get stuck and, though still keeping about 90% of its turning range, it won't come out unless you spray WD40* or similar on the lock and turn the key back and forth several times.
Doesn't seem to make a difference if you close the lock "empty" or with the U-rod, if you turn the key fast or slow, or if you push/pull the key while doing so. Only the WD40 seems to make a difference. Since the lock seems made of thin metal sheets, and the grooves on the key are quite sharp, I don't know if a touch of flint paper on it would help or make things worse.
So, is there a way to solve the problem, or it's time for a new U-lock? Any idea of what is causing this mess (worn out/loose lock, perhaps)?
* I've read I should have used graphite powder... but when you're in a hurry a spray works better.
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