Fortress padlocks

[Mr Ules]

I was recently given a fortress padlock by a friend. He lost the key and asked me if I could make one. I agreed to help him. It managed to pick the lock quite easily however can't seem to remove the cylinder to be able to rekey it. I decided to simply rekey it because it would be faster and easier than impressioning. The problem presented itself when I looked inside the lock. Where there was normally a screw, there was a pin which stuck out. This pin stuck in the opposite direction of the cylinder.
I was wondering what the technique would be to remove the cylinder for rekeying. And, what that pin does. Any information would be appriciated.

[Pickermeapie]

Are you sure its a removable core padlock? Not all padlocks can be rekeyed. and can you rephrase this, I dont quite understand

This pin stuck in the opposite direction of the cylinder.

[Mr Ules]

Yes, the cylinder is removable. And what I meant was that the pin points in the opposite direction of the cylinder. What I'm guessing is that the pin is attached to the top of the cylinder.

[Pickermeapie]

I'm sorry but I still do not understand your description, I think what you might be refering to is somthing i have seen on the Master 7000B Hockey Puck lock whereas the core is actually connected to the cam or shaft. Is this what you have. Sorry I am not being more helpful, a picture may help. Anyone Else?

[raimundo]

the pin probably keeps the cylinder in and should have a screw or something holding it in, rap the lock on a bench in a direction that will drop the pin out of the cylinder and it will all come apart. Its a very old rekeyable type

[Mr Ules]

Thanks for the help