Thank you very much for your responses.
I just got a Bron mandoline. In trying it out, I noticed that it makes alot of noise though it doesn't seem to be hitting any of the rotating blades (the crank is hanging down according to the instructions)and the fluted blade is out of the way. As near as I can make out, the noise is coming from the hand guard rubbing on the rails, but I am worried that I am doing something wrong. Any ideas or suggestions would be welcome: I would hate to ruin the mandoline through ineptness.