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Slow Runnin Locos for brachline service.

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  • Member since
    January 2002
  • From: Ottawa, Canada
  • 234 posts
Posted by jkeaton on Wednesday, August 4, 2004 9:54 AM
Another way to achieve slow running with Athearns is to install an Ernst gearing kit - they don't have any website that I can find, but Walthers carries them, and they're simple to install. The kits for four and six axle diesels change the gear ratio between the motor and wheels from 12:1 to 32:1, so the locomotive runs about 40% as fast as before. I have a 1980s Athearn SW with an Ernst kit, and it works well. In Walther's on-line catalogue: http://www.walthers.com/exec/search?manu=259&split=30
  • Member since
    December 2001
  • From: San Jose, California
  • 3,154 posts
Posted by nfmisso on Wednesday, July 28, 2004 9:08 AM
The bar has sliding intermittent contact with the bar attached to the trucks. Soldering a jumper wire between the two greatly improves the reliability of the electrical connection.

Kato - yes.

On Athearn: NWSL wheels. On P2K, if the gears crack, replace with Athearn.

If you want a slow smooth running locomtoive, look Hobbytown http://bearlocomo.zoovy.com/ and TVM http://www.lynnet.com/~tigervalley/ with low speed gearing. TVM's low speed gearing provides around 45 mph at 12 V.

Another choice is a Spectrum Shay.

Nigel
Nigel N&W in HO scale, 1950 - 1955 (..and some a bit newer too) Now in San Jose, California
  • Member since
    March 2003
  • From: Nebraska
  • 449 posts
Posted by traingeek087 on Tuesday, July 27, 2004 7:13 PM
What bar that connects the two trucks?

And do Kato engines run that smooth?
Rid'n on the city of New Orleans................
  • Member since
    April 2003
  • 305,205 posts
Posted by Anonymous on Tuesday, July 27, 2004 7:02 PM
QUOTE: Originally posted by coal drag

With the Athearns, if you haven't already, take the bar that connects the 2 trucks and toss it. Remove the top copper bar on top of the motor and remove it. Be careful not to lose the brush spring and brush. Now solder a wire from the copper bar and each truck re-assemble everything and you'll have a better running engine, and maybe slower also.


Why does it help by removing the bar?
  • Member since
    July 2003
  • 59 posts
Posted by coal drag on Tuesday, July 27, 2004 6:34 PM
With the Athearns, if you haven't already, take the bar that connects the 2 trucks and toss it. Remove the top copper bar on top of the motor and remove it. Be careful not to lose the brush spring and brush. Now solder a wire from the copper bar and each truck re-assemble everything and you'll have a better running engine, and maybe slower also.

The only other way to lower the running speed of an Athearn is to put about a million (real) miles on the loco. It'll run so smooth that you can pass it off as a Kato !!!
  • Member since
    March 2003
  • From: Nebraska
  • 449 posts
Slow Runnin Locos for brachline service.
Posted by traingeek087 on Tuesday, July 27, 2004 4:02 PM
I want to recreate a portion of a branchline that is about 30 miles away. What I mean is I wan't it to split off of my single track mainline, run in view for about 5-10 feet, run into the closet to a reverse loop/staging that will connect to another part of the layout. The prototype runs about 10 mph, I could go with 20 or so, but I can't find a motor that will run that slow constantly. Most of my fleet of locos are Athearn engines and Proto 2000. Can anyone help me?
Rid'n on the city of New Orleans................

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