A reminder for those who own any articulated Locos

Always a good idea to check your equipment from time to time. We don't run our automobiles without oil changes, tire rotation, new filters and, in the Good Old Days (not so much...) frequent plugs, points, condenser, timing maintenance - and more. These little RR machines of ours are just that: machines, and they need regular inspection and attention.

The specific problem you had would really only apply to Lionel Lionmaster, MTH RK and K-line "sub-scale" articulateds, as they are constructed pretty much the same way - very much like a diesel loco with swiveling engine "trucks", disguised as back-to-back steam engines.

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The upper-end/1:48 articulateds are constructed more like the real thing (fixed rear engine, swinging, not swiveling, front engine), and will have their own sets of needs. They also have one big motor and a long jointed driveshaft. They need eyeballing, too.

Has never had this issue on any of his Lionel, K-Line, or MTH steamers.  Only thing it happened on was a RMT GG1.  But since he had the K-Line GG1 too it was easy to know where the screws went.