Thanks for the quick reply. Makes sense as the loco runs perfectly well under DCC.

Should the GP30s (eg 60813) come with factory fitted flywheels? Spokesman at Bachmann UK Service Department says yes, but mine doesn't have any fitted and the product diagram sheet, as far as I can make out does not show them, just the plastic housing on both sides of the motor. Or am I missing something?

Not quite as simple as the last post. I to purchased a Forney and the trailing truck had come adrift. Had to remove the coal bunker, circuit board and speaker plate to be able to push the fittings together.

Regards
Allan