Re: PSX-AR Installation Query

Don Vollrath

Filling an isolating gap with styrene does prevent a steel wheel from falling into the crack and touching both rails at the same time.... except possibly in curves where the side of the wheel flange May touch the side of the rails. This requires a wider filled gap. AND it doesn’t cover the case where multiple axles and wheels are electrically connected together at a power pickup truck. Think - another loco or passenger car truck

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