problem with diassembling a mul-t-lock

[Kwick]

i was trying to put out the core of the mul t lock (don't know which model it is, and i made the mistake to rotate the core 90° clockwise. I heard "click", and now i can't move the core or rotating it.

seems like top pins have went into some unused holes in the MTL core.

blocked cylinder : i can't remove the key or pull out/turn the core.



and image of what should have happened inside the cylindre.



any genius here have an idea i didn't had ?

[David_Parker]

Is there any chance you're top inner pins extended into sidebar holes on the side of your key?

[greyman]

Tough luck Get your drill out!

[mhole]

You may be able to 'bump' the pins free by smacking the lock against a hard surface, but you need lots of patience (and even more luck!) to have this work.

Failing that, it's game over

[linty]

those holes are for side pins which are not normally used. It is definitely possible to get it free by smacking it hard against a solid surface, but it can be a pain.

[greyman]

Another thought: you could send it back to MulTLock saying it's a faulty cylinder and ask them to replace it under warranty

[n2oah]

those holes are for side pins which are not normally used. It is definitely possible to get it free by smacking it hard against a solid surface, but it can be a pain.

Ah yes. Those sidepins which don't really do much. I once had a Mul-t-Lock with those pins, I think I just threw them away.

[linty]

They don't do much to thwart picking, and I am not a fan of passive pins in general, but MTL will actually create entire master key systems where all keys are the same cut and only the side pins change.

[Kwick]

thanks to you all for your help

i tried to bump the cylindre with no luck, then i called MTL France and explained my problem, they gave me the number of a MTL reseller and he told me he could replace the cylinder for 250€ (~$375). so nice!

so no i have to sacrifice one side of the lock to get back the core (the only thing i really need)

so i will drill into the cylinder, but i don't know exactly where, maybe in the bottom of the pins and springs chambers.

thanks again.

[Kwick]

thanks to you all for your help

i tried to bump the cylindre with no luck, then i called MTL France and explained my problem, they gave me the phone number of a MTL reseller and he told me he could replace the cylinder for 250€ (~$375). so nice!

so no i have to sacrifice one side of the lock to get back the core (the only thing i really need)

so i will drill into the cylinder, but i don't know exactly where, maybe in the bottom of the pins and springs chambers.

thanks again.

[Beyond]

those holes are for side pins which are not normally used. It is definitely possible to get it free by smacking it hard against a solid surface, but it can be a pain.

Ah yes. Those sidepins which don't really do much. I once had a Mul-t-Lock with those pins, I think I just threw them away.

They're for master keying.

They are important and have a reason, most notably, blocking plug rotation if your key doesn't possess the side cut needed to allow them to recess.

But what would I know, I'm just Mul-T-Lock certified.

[Beyond]

They don't do much to thwart picking, and I am not a fan of passive pins in general, but MTL will actually create entire master key systems where all keys are the same cut and only the side pins change.

Where on earth did you hear this BS?

[Beyond]

i was trying to put out the core of the mul t lock (don't know which model it is, and i made the mistake to rotate the core 90° clockwise. I heard "click", and now i can't move the core or rotating it.

seems like top pins have went into some unused holes in the MTL core.

blocked cylinder : i can't remove the key or pull out/turn the core.



and image of what should have happened inside the cylindre.



any genius here have an idea i didn't had ?

I'm nearly certain the side pins are always on the side of the plug that the key is touching. In other words, they should be at the top in that picture.

I've got a good idea of what may be the problem and how you can fix it without drilling it.

When you attempt to turn the key does it have any "play" or movement? Even if it has just a bit answer yes.

[Kwick]

i was trying to put out the core of the mul t lock (don't know which model it is, and i made the mistake to rotate the core 90° clockwise. I heard "click", and now i can't move the core or rotating it.

seems like top pins have went into some unused holes in the MTL core.

blocked cylinder : i can't remove the key or pull out/turn the core.



and image of what should have happened inside the cylindre.



any genius here have an idea i didn't had ?

I'm nearly certain the side pins are always on the side of the plug that the key is touching. In other words, they should be at the top in that picture.

I've got a good idea of what may be the problem and how you can fix it without drilling it.

When you attempt to turn the key does it have any "play" or movement? Even if it has just a bit answer yes.

yes it have a little bit

as you can see on the pictures, the top pins are stuck into side holes for passive (control) pins.

[n2oah]

those holes are for side pins which are not normally used. It is definitely possible to get it free by smacking it hard against a solid surface, but it can be a pain.

Ah yes. Those sidepins which don't really do much. I once had a Mul-t-Lock with those pins, I think I just threw them away.

They're for master keying.

And that is why MtL's master key systems blow. Well, at least the ones I have seen.