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Atlas/Dapol Track Cleaning Car with Railpro?

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CPRail:
I saw that too. One has to wonder for a 9V max system, just how much current is running through there that it can melt rosin core solder which has a general melting point of ~ 360° F (182° C)??

gregeusa:
no, if run OVER 9v the solder may melt... assume 12v (typical HO DC voltage) now you are running the motor 50% in excess of design voltage, remember motors are usually nonlinear at the extremes...

I would guess the copper "springs" (look at the pictures) to the axles have too much resistance and create heat....

CPRail:
Ahh, that would explain why I read a reference to hard-wiring the pickups.

I gotta crack this thing apart in the next day or so and see what I'm working with here!

gregeusa:
yeah, run it at 9 volts and check the current draw, then run it briefly at 12v and note the current.

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