Ian Smith said:Jon Senior said:Ian Smith said:Just over 13 month ago, my replacement Kryptonite lock arrived. I
left it on teh bike racks at work, where it does, admittedly, get
rained on. It has been a bit finicky for teh last month or so now,
but last week it took me about 30 minutes to persuade it to open.
If a lock's getting finicky, that's the time to slather every moving
part with 3-in-1. 99% of the time that will stop things getting any
worse.
Quoted message said:Quoted message said:Have you tried applying oil? I know that your Abus has suffered the same
abuse and still works, but it strikes me that expecting a fairly intricate
mechanism to survive the British Outdoors without any oil is a little
harsh. The real test should be resistance to thieves surely. If it fairs
well in that respect then it's work two drops of 3-in-one every 4 months.
It gets oiled now-and-then, possibly not as often as it could or
should, but it hasn't been entirely abused.
However, I think it's a bit more complex than just rusting / corroding
/ becoming stiff - the key is supposed to go in the hole and turn 180
degrees. What happens is the key goes in, turns 90 degrees and then
jams solid. There's no stiffening, no give, no play - it's as if it's
got to the end of the travel of the mechanism and hit a steel
end-stop. I think something is broken internally and sometimes falls
such that it jams solid. Once, I managed to open it, but it jammed
trying to get the key back out again.
Plus, there's a bit of a different fault anyway - it seems to use
discs as the 'pins'. Occasionally (often enough that I think "oh no
not again" rather than "that's odd"😉 the discs shift round apparently
on their own and I then have to shake or tap it or wiggle a paper-clip
in the keyhole to get the discs to line up enough to get the key in.
I think they just lie where they rest, without being sprung, so if a
jolt displaces them they key then can't get in.
Those are both common for these new disc lock thingies. The first is
because the discs turn 90 degrees before they hit whatever pin
arrangement unlocks them, so if you put the wrong key in you'd get
exactly the same effect.
The second is indeed a pain. Some brands of lock you can get away with
inserting the key into the first disc, wiggling it back and forth until
it inserts a bit further, and so on until you can finally open it.
The disc mechanisms, especially on Kryptos, also seem to be far fussier
than conventional pin-and-tumbler locks. Everything needs to be just
so, and it's entirely possible for something to become not just so
while the bike is locked up.
FWIW I've had good service out of Abus and early Squires, but the later
Squires seem to need far more regular oiling.
Quoted message said:I'm not highly convinced on the resistance-to-thieves anyhow - it's
fairly solid in its components (though nothing like the Abus I use
alongside it), but the U-bit doesn't feel secure in the straight bit
to me. It feels like the notch in the U is not very engaged by the
bit that engages it, and I basically don't trust it.
So, it's not just a one-off jamming that's put me off it - more a
gradual build-up of annoyance and distrust.
regards, Ian SMith
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