MTH proto 3 HO PROBLEM

Hi David,

There's a good chance a wire came off the drawbar in either the engine or tender. I've had a few that have had that problem. As for the smoke unit it could also be that a wire came off.

The wires in the early HO engines aren't that flexible and do break off easily. When Iv'e taken some apart Iv'e had some break off.

Ralph

I work on them.  Did your try a reset?  G

David,

There were drawbar issues with some of the HO engines.  They were not allowing a good connection.  They have been redesigned and are available from MTH.  Sorry I do not have a part#.

Dave

Thanks guys for your help. GGG I did try a reset, both a feature and a full reset. It does look like it is the drawbar is the problem.

It can be a boiler board failure too.  That fact this deteriorated in stages (smoke first) could mean something besides just draw bar.  (simple 2 wire system).  You can take shells off to see if a simple wire issue.  G

I think the new Challenger had a newer style drawbar not the older two wire drawbar.  These where redesigned for better contact.  The problem was the thickness of the metal mounting plate not allowing a full connection.

A photo would be nice.

Dave