Märklin old Signal 446

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Rocca		#1 Posted : 03 October 2021 11:37:02(UTC) Retweet
Joined: 28/01/2004(UTC) Posts: 617		Dear Friends, as you remember, maybe, I'm just working on a vintage layout, all with 3600 tracks and with Locos serie 800. Well, now I'm into solving a problem with a 446. I've connected everything, but first of all in signal section the loco always stops no matter if the light is red or green, second, sometimes a short is coming out in this part of the layout, where the signal is and the light od the trafo becomes off. You have here some pictures of the section. Have you any suggestion to solve the problem, please? Best regards Stefano


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kiwiAlan		#2 Posted : 03 October 2021 11:58:09(UTC) Retweet
Joined: 23/07/2014(UTC) Posts: 8,103 Location: ENGLAND, Didcot		Originally Posted by: Rocca Dear Friends, as you remember, maybe, I'm just working on a vintage layout, all with 3600 tracks and with Locos serie 800. Well, now I'm into solving a problem with a 446. I've connected everything, but first of all in signal section the loco always stops no matter if the light is red or green, second, sometimes a short is coming out in this part of the layout, where the signal is and the light od the trafo becomes off. You have here some pictures of the section. Have you any suggestion to solve the problem, please? Best regards Stefano That signal base plate is getting awful close to the center rail connections. Are you sure that isn't the source of the short?


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Rocca		#3 Posted : 03 October 2021 14:45:05(UTC) Retweet
Joined: 28/01/2004(UTC) Posts: 617		Originally Posted by: kiwiAlan Originally Posted by: Rocca Dear Friends, as you remember, maybe, I'm just working on a vintage layout, all with 3600 tracks and with Locos serie 800. Well, now I'm into solving a problem with a 446. I've connected everything, but first of all in signal section the loco always stops no matter if the light is red or green, second, sometimes a short is coming out in this part of the layout, where the signal is and the light od the trafo becomes off. You have here some pictures of the section. Have you any suggestion to solve the problem, please? Best regards Stefano That signal base plate is getting awful close to the center rail connections. Are you sure that isn't the source of the short? Dear Alan, thank you so so much for the suggestion. I've put now the signal base plate not so close to the central rail and now the short troubles seem corrected. The troubles with the loco non getting current with any position, red or green, of the signal, still remain. Have you any suggestion for sorting that too, please? I've had an inspection of all the cables inside and all is well soldered. Best regards Stefano


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Martti Mäntylä		#4 Posted : 03 October 2021 19:29:02(UTC) Retweet
Joined: 15/11/2018(UTC) Posts: 398 Location: Uusimaa, Helsinki		This is a possibly relevant picture from "Signalbuch für die Signale 446": Sometimes the metal connectors shown in red in the picture fail to provide a good connection: they may be twisted out of shape, or the contact surfaces may be dirty. The proper operation of the signal can be tested by connecting a lamp to the Oberleitung sockets on the right side of the signal (as shown in the picture).
		- Martti M. Era III analog & digital (Rocrail, CAN Digital Bahn, Gleisbox/MS2, K83/K84), C & M tracks, some Spur 1
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Rocca		#5 Posted : 03 October 2021 21:13:31(UTC) Retweet
Joined: 28/01/2004(UTC) Posts: 617		Originally Posted by: Martti Mäntylä This is a possibly relevant picture from "Signalbuch für die Signale 446": Sometimes the metal connectors shown in red in the picture fail to provide a good connection: they may be twisted out of shape, or the contact surfaces may be dirty. The proper operation of the signal can be tested by connecting a lamp to the Oberleitung sockets on the right side of the signal (as shown in the picture). Thank you so much for your suggestion. I'll have a look on the signal tomorrow afternoon. Good evening!! ii is for me 21.12pm form now1 Beste regards! Stefano


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