I just purchased a New (old new stock) Bachmann GE44 Ton Switcher with on board dcc. First run out of the box it sounds like a corn shucker - runs OK forward and reverse but I am concerned about the noise. This is a 2003 unit and I am sure it has been sitting somewhere on a shelf for awhile. I am thinking it needs lubrication but, would like some opinions on what to use or could there be something else wrong? Got a good deal on it so I want to salvage it if possible. Your thoughts?