My lock gets stuck

[feerbau]

Hi, I'm new to this and I'm having problems while trying to open a lock. When I get to set the pins, the lock turns a little but it gets stucl. Sometimes I'm able to open it, but sometimes it gets stuck. Here is a video of what happens.
If anyone can help me with this I would appreciate it.

Images
Video

Thank in advance.

[feerbau]

Sorry, here i provide some info of my lock



It's Bulit


Also it says Hardened on it

[ShadowXT]

Probably just a crappy lock with bad machining finish and tolerances. Try some good quality lube and spray it good. I'm not talking about WD40.

[feerbau]

I have already done that, i dont think that's the problem because i have opened it many times, and still opening but without knowing what i touch...
It just opens.

[GWiens2001]

My quick guess would be that it is, as stated, a cheap lock.

Suspect it has a short key pin coupled with a short driver pin. If the lock is not picked to the right position, then both the key pin and driver pin are below the shear line, leaving the spring to block the shear line. It allows the plug to turn further than a false set, but not far enough to operate the locking dogs enough to open the lock.

Just my two cents.

Gordon