ML 911 vs. ML 931

[Pyrhhus]

I am trying to distinguish the difference between these two locks. Can anyone clarify any difference between the two?

[Squelchtone]

I am trying to distinguish the difference between these two locks. Can anyone clarify any difference between the two?

911 Exposed Shackle




931 Shrouded Shackle



-Squelchtone

[Pyrhhus]

>< Doh! I feel stupid. Thanks though.

-P

[Pyrhhus]

On an unrelated note, a second question if I may.

I have the ML 911, and for some reason, as soon as I insert my tension wrench in lock (in the "standard" location) the pins seem to lock up and become almost impossible to raise without applying an inordinate amount of force. Even with no pressure on the tension wrench. As soon as I remove the wrench the pins move freely.

Any thoughts as to what could be causing this? The keyway seems pretty standard, and it doesn't seem like the wrench is obstructing my pick in any way.

[ridinplugspinnaz]

On an unrelated note, a second question if I may.

I have the ML 911, and for some reason, as soon as I insert my tension wrench in lock (in the "standard" location) the pins seem to lock up and become almost impossible to raise without applying an inordinate amount of force. Even with no pressure on the tension wrench. As soon as I remove the wrench the pins move freely.

Any thoughts as to what could be causing this? The keyway seems pretty standard, and it doesn't seem like the wrench is obstructing my pick in any way.

In all honesty, it just sounds like you're making the common mistake of applying entirely too much torsion to the cylinder with your wrench. You really never need more than the amount of torque it takes you to turn the key in the lock, and in the case of the 911 (which IIRC contains security pins), you'll probably want to use an even lighter touch than usual.

[Pyrhhus]

That was my thought initially as well, however, this "locking" of the pins occurs with virtually zero tension, and seems to be more a factor of the wrench being in the keyway, than the keyway actually being turned. I'll admit I am rather new, but this is entirely an anomaly from what I have thus far experienced with locks.

[Pyrhhus]

Edit: I just realized in my original post it may not have been clear what I meant when I said "inordinate amount of force." I was referring to the pick pushing up on the pins, not torque on the tension wrench. Sorry.

[Squelchtone]

That was my thought initially as well, however, this "locking" of the pins occurs with virtually zero tension, and seems to be more a factor of the wrench being in the keyway, than the keyway actually being turned. I'll admit I am rather new, but this is entirely an anomaly from what I have thus far experienced with locks.

Pyrhhus,
When you originally wrote that you have the tension wrench in the standard position inside the keyway.. Perhaps your standard isn't what we consider the standard. Please take a pic of the lock with the way you hold it, with the tension wrench in the lock, and your fingers/hand holding the tension wrench, make sure we can see the keyway and the way the wrench is resting within. This is the only way to resolve this, because jsut putting a tension wrench into a keyway, does not make all the pins jam up, it just doesn't happen. No need for the pick in this picture, use your free hand to take the photo.

Thanks,
Squelchtone

[Pyrhhus]

Well, after much futzing around with my point-and-shoot camera trying to figure out how to make an extreme close up, I think I have some pictures for you.

Just to clarify however, I agree completely with you squelchtone that

jsut putting a tension wrench into a keyway, does not make all the pins jam up, it just doesn't happen

. That is precicely why this case is so confusing for me. I tinkered with the lock some more, and I should mention, that I can move the pins with the tension wrench inserted, it is just inordinately difficult compared to moving the pins without the wrench.

I suspect it might just be a case of my being unfamilar with the what is "typical" for a lock, however, I wanted to check for alternative explanations just to be sure.

Pics: