I have 3 Atlas switchers to use on my modular switching layout. They all perform extremely well
However----all 3 emit a whining/growling noise at a certain low speed/low RPM. It varies among the three from barely audible, noticeable, and almost annoying. I have serviced the gears and bearings in the drive trucks but the noise remains unchanged.
All three locos are used with history unknown to me.
I am reluctant to remove the bodies just to snoop around looking for trouble. I am puzzled as to whether this is just a common trait for these switchers---or whether the growling whine is indicative of wear of the drive components. Loose or UNbalanced flywheels?
Your input is welcome---I know some of you have considerable collections of --and considerable experience with-- this particular model.
As an aside---is there any other 'O' scale switcher that performs so well at low speed? The Sunset 44 ton switcher runs a distant second, I believe?? -Salty Rails-
