Author Topic: Need help repairing an ME turnout  (Read 1492 times)

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mike_lawyer

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Re: Need help repairing an ME turnout
« Reply #15 on: March 08, 2023, 12:25:46 PM »
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Success!  I was able to solder in PC board ties for the throwbars and the broken tie.  Everything is running well now.  Glad I was able to get the turnouts fixed instead of having to remove and install new ones.

robert3985

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Re: Need help repairing an ME turnout
« Reply #16 on: March 09, 2023, 04:08:27 PM »
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I can take a picture tonight, I accidentally melted the tie that the PCB board should rest against.  I also had some silver solder migrate in between the closure rail and the stock rail.

I am thinking for the melted tie that maybe I should just cut that tie out and glue in a replacement wooden tie in its place, then try to resolder the point rails to a new PCB rail. 

As far as cleaning the solder off the stock rails, any recommendations?

Mike

Although Mike @mike_lawyer has already fixed his turnout, here's a simple tip to keep solder from "migrating" where you don't want it to.  Just cover areas you don't want solder to go by marking the copper with a #2 or HB pencil on your PCB tie.  This is especially good for making sure that there isn't any solder, or even a fillet on the filed side of your closure point toes down at the throwbar.  Additionally, the graphite acts as a lubricant for easy throwbar sliding on the underside of the stock rails.

Additionally, when I'm fixing ME turnouts, I replace the short ties (headblocks) on either side of the throwbar with long PCB ties if I've removed the over-center spring to use a Tortoise underneath since this is a weak point on all N-scale turnouts.

Cheerio!
Bob Gilmore