adjusting the Wheels with an AC loco ? is it written anywhere this is what you have to do, I have many DC and AC locos from Roco and never experienced this before. what type of double switches are we talking about the early or later ones ? has the slider been changed ? is it a silent slider ? is the slider sitting in the groove properly ? just let it run very slowly and watch what happens with the wheels and slider when you go over the turnout.

good luck

regards,

John

Hello Peter,

accidentally I read in the German Stummi community about a similar problem of a Roco Railjet. But the writer traced it back to the current conducting couplers at the train.

This especially happens when the loco pushes the train while leaving the shadow station via a switch into a slope (<3%), the coupler kicks down so that it can hit the higher pusher of the K-turnouts and the train stucks, he was writing.

Although you have the problem when your loco pulls the train, but in both cases it is a Roco Railjet on K-tracks turnouts. Maybe it gives you another idea.

regards

Wolfgang

Hi!
I have no problems on C track.

The Roco slider has two black plastic parts that can be taken off, making the slider a bit narrower (and potentially a bit noisier).
Worth a try to take the plastic parts off. They are just clipped on and can easily be re-installed.

Well I'm dammed if I do and I'm dammed if I don't. The problem appears to be that with the 2260 double crossover the 13.8 mm wheel spacing is too tight, the wheel lifts on the guide and causes the loco to go in the switched direction rather than straight. If I adjust the wheel spacing to anything less than 14 mm this occurs. However, if I am at 14 mm it will derail at the standard 22715/16 and 2265/66 turnouts.

I have taken Tom's advice and removed the plastic from the slider, but unfortunately this had no effect.

Finally - success!!!

Since it was obvious that I am dealing with a fraction of a mm one way or the other which would allow the loco to go through the various switches I decided to adjust the flange spacing as close as possible for the 2262 double crossing which appeared to require the largest spacing. I rolled only the axle over the switch and adjusted the flange spacing until it would not lift at the guide. Estimate it is somewhere around 13.95 - 13.98 mm. Reassembled all and the loco now goes through all switches consistently. Thank heaven for the Forhmann tools designed for this adjustment.

Only problem now is with the numerous disassembly and assembly, the slider screw can no longer be tightened. For now I filled the hole with Teflon plumbing thread tape and it is at least holding the screw.

Peter