PLEASE READ BEFORE USE AND SAVE
www.mthtrains.com
Compatibility
This engine will operate on any traditional O-
31Gauge track system, including M.T.H.’s
RealTrax® or ScaleTrax™ or traditional
tubular track. It is also compatible with most
standard AC transformers. (See pages 46 and
47 for a complete list of compatible
transformers, power packs, and wiring
instructions.)
RailKing 4-8-8-4
Big Boy Steam Locomotive
OPERATOR’S MANUAL
Freight Yard Sound