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Very interesting problem. Does not matter in which direction the engine (steam Loco) is moving. The engine can't completly clear that  turnout? It will stop dead. Two ways to get moving again,(1) Pour the juice on that loop to above 12 volts of power. Then the will speed right pass the problem area (not cool). (2) When engine stalls must recycle direction with PWZW transformer with the speed control handle. I have enough wiring underneat the layout. Every other track is wired for power. Using 14&16 ga wire. The problem lays in the turnout itself. Meaning the area of track opposite where you wire the turnout. I lose 1/2 of my power in that area of the turnout. And that is what my AC volt meter is telling me? And my ohm meter is saying no current at all in a very short peace of rail. Has anybody ever have this problem. And how can I fix the problem. I would hate to replace that switch. My layout is conventional with no fancy electronics. Just plane simple circa late 1950's. With (3) three PWZW's. Never had this problem b/4. Thank you in advance Mike.

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Originally Posted by Fokker Triplane:

Sir: Is there a certain manuel or book one could buy that would give you step by step detail information how to do this rebuild?


When working on these switches,  it become fairly obvious what needs to be fixed.

Reversing the switch machine was a big problem for me with the new O-72[1980's]  as the mouse trap lock would not engage, and the switch no longer locked in place.

 

Lionel O-72 swiches is why my next layout Was built with Ross switches and gargraves track.

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