Has anyone else had a similar problem with their Bachmann
RS-3? I am wondering if this problem stems from the fact that
the Bachmann wheelsets essentially snap into place and don’t
have much room to move around.
– Eric M.
A.
Jeff Shultz recommended checking the wheelsets with an
NMRA gauge, and inspecting the wheels to see if one of them is
loose or tight, or the wheel isn’t on the axle quite square.
Prof Klyzlr added another possibility. Are both wheelsets gauged
such that they are equal on centerline? It is possible that the
wheels can be correctly gauged in terms of how far apart the
wheels are, but one wheel can be closer to or farther from the
track center line.
His quick extreme example [2] shows a freight car truck with off-
set wheels. The red line is the track center line. Due to the offset
gauging, both wheelsets are spaced the correct distance apart
1
1. Eric M’s Bachmann RS-3 Sound Value looked great
but had a derailment problem.
