Comments on: Problem with Old Athearn SW7 Loco https://blog.model-train-help.com/2016/01/problem-with-old-athearn-sw7-loco.html?utm_source=rss&utm_medium=rss&utm_campaign=problem-with-old-athearn-sw7-loco Model railroads and model trains Tue, 09 Feb 2016 16:40:01 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Dean Woehrle https://blog.model-train-help.com/2016/01/problem-with-old-athearn-sw7-loco.html#comment-12054 Tue, 09 Feb 2016 16:40:01 +0000 http://blog.model-train-help.com/?p=3906#comment-12054 The tank farm in the picture above bad no roads going to the tanks that oil product does not come and leave by train and also this type of tanks don’t feed or receive by pipeline also the tanks would require a type of dam surrounding the tanks to contain spills

]]> By: Lee Drake https://blog.model-train-help.com/2016/01/problem-with-old-athearn-sw7-loco.html#comment-11890 Fri, 29 Jan 2016 03:32:33 +0000 http://blog.model-train-help.com/?p=3906#comment-11890 From how you described it my guess would be the drive wheels are slipping on the gears on the axles. A common problem with both Athearn and later Proto 2000 drives. Really it is an easy fix, but you will need to replace most likly all four of the drive wheel and gear assemblies. Hope this helps!

]]> By: Bob P https://blog.model-train-help.com/2016/01/problem-with-old-athearn-sw7-loco.html#comment-11886 Thu, 28 Jan 2016 17:51:21 +0000 http://blog.model-train-help.com/?p=3906#comment-11886 In reply to Wayne Mabie.

Check to see if any of the gears are cracked. Since it was sitting for so long this could cause binding. I have had it happen to me on a Proto 2000. Just a thought.

]]> By: Wayne Mabie https://blog.model-train-help.com/2016/01/problem-with-old-athearn-sw7-loco.html#comment-11874 Thu, 28 Jan 2016 05:56:17 +0000 http://blog.model-train-help.com/?p=3906#comment-11874 I had a similar problem, and it was alignment goof on my part. I found it by moving the geartrain and saw that the finial worm gear was misaligned. (use a “glas” to check) and good luck.

]]> By: Frank B https://blog.model-train-help.com/2016/01/problem-with-old-athearn-sw7-loco.html#comment-11869 Thu, 28 Jan 2016 02:58:14 +0000 http://blog.model-train-help.com/?p=3906#comment-11869 Please give the link to the site so we can see what the mechanism looks like !
(There are slightly different methods of gearing.)

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