I got a 28x28 x 42(including wheels)Diebold safe .I want to reset the combo the door is open .there is a short pin inserted in the center of the lock back. I don't know much about safes but I have better than average mechanical skills .I could reset with proper instructions .If needed I can take a bunch of pics .I assume it is pretty old and very heavy. A friend gave it to me and it is at his house .I don't want to take it home till I get it reset .I believe it is a 3 number ....left right left right .thanks Pat