New used 70-210 4-5.6 owner question

[pserko]

A silly question.

I just bought a used 70-210 Nikon lense ( in great condition) and can't seem to get the zoom to work. There is a button on the side of the lense that I assume is a lock, tried to push it but not sure which way it goes. I'd be grateful if someone would enlighten me on its operation since I don't want to force anything and dont' have a manual.

Looked for manuals online but couldn't find one. Does anyonw know if there are such things online?

Thanks

[pserko]

I figured it out.. thanks