Overture Refinery issue

[BlouReed]

So I found the bolt cutters and the screw driver, I make it into the refinery. Up onto the platform where the controls for the rock crusher are, and I cannot operate the controls. the little hand that indicates you can pick or touch stuff does not appear. I have watched a walkthrough video and you are supposed to be able to make the crusher pistons go up and down to crawl through. but I have no way to operate the controls!!!!!!!!!!!!!!!!