4-8-4 Niagara

[Beastherc]

I recently purchased a Niagara 4-8-4.  Excited, I bypassed the DCC and set on the track.  I'll be darned, but after a week I can't get it to run more than 6 inches without jumping the track.  Forget curves and switches.  The floating trucks just wont stay on.  How do I adjust?

[the Bach-man]

Dear Beast,
I'd say the first thing to check is that the lea and trailing truck wheels revolve freely, and then check the gauge. If you're still having trouble, check back.
Have fun!
the Bach-man