[kevinpea]

Hi All
I bought a Bachmann 4-8-4 in America whils't on holiday there.I was assured that it was capable of running ok on 3rd radius track.On testing it would not clear the first curve so I decided to put in another circuit of 4th radius.It clears the curves in reverse but going forwards the first of the 4 driving wheels comes off the track after 3 inches of the curve,and then then the front bogie also derails.Have I got a bad one or does it need an even bigger radius.
Any suggestions would be appreciated.
Kevin

 

[pedromorgan]

first of all, which one is it?

I have one that is fine on 3rd radius but dosent like reverse curves. can you run it very slowly and try to see exactly whats causing the problem?

Peter

 

[York Puffer]

Used a Bachmann 2 10 2 for the first time today, may have smaller wheel diameter, but fine on 3rd and even does 2nd!!! rad curves, requires a little restraint over points, but does not like curved points, (that part not nailed down yet though and it is uneven).

I have removed the front bogie though, flies off even if you just sneeze.

Used an Atlas GE Dash 8-40-B for first time, beautiful. More Atlas locos for me.

 

[York Puffer]

http://www.bachmanntrains.com/home-usa/boa...pic,6978.0.html

Kevin you may find an answer in that link.

Brand new curved was buckled so raising the leading axle and missing the guide rail, tweak with pliers.

 

[kevinpea]

Hi All
I have now managed to get it round the track forwards and backwards at about half speed on 3rd and 4th radius without derailing by relaying the track but even the long points seem to be too much for it.I'm thinking now of using it as a shuttle on a long straight.Thanks for the suggestions.
Kevin