I have this safe that a man brought me. It's a Sentry V332 safe and I am trying to manipulate it. I haven't started yet, just turned the dial. When I turn to the right, I can hear two wheels pick up and if I stop at zero and reverse my direction, the first wheel will pick up at 94 and the second at 85. I'm not sure exactly why that is because I thought they would both pick up at the same spot. Also, if I turn the key to the left as I'm dialing, the dial catches very distinctly at three numbers. I'm sure that these are not the combination numbers but any idea why it's doing that? But what I would like to know is what type of lock this is and exactly how it works. I've attached two pics.

