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Transformer wiring

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  • Member since
    April 2003
  • 305,205 posts
Transformer wiring
Posted by Anonymous on Thursday, December 4, 2003 11:22 PM
We have a Lionel 027 gauge train set. We are trying to get it operating. We set it up temporarily on the basement concrete floor.Is this going to affect the operation being on the concrete? Also, the transformer we are using is a Lionel, Trainmaster model KW. Is there anyone that can tell us which lugs on the transformer we should use to wire to the track feed? What should the secondary voltage be out of the transformer to the track?
Thank you for your assistance.
  • Member since
    November 2003
  • From: The ROMAN Empire State
  • 2,047 posts
Posted by brianel027 on Friday, December 5, 2003 12:03 AM
Okay, just below your power cord you have your A post and your B post. Below those in the second row are C and D posts, which are closer together. The U posts are on bottom.
You don't mention your engine type, but most older Lionel engines use more power to start up. Really any engine with the open frame AC motor will use more current than a unit with just DC can motors. Extra lighted cars will also draw more current.
Using your U post as the common or ground: Either U-A or U-B will deliver 6-20volts variable to the track with fixed voltage posts U-D giving 20v and U-C giving 6 volts fixed.
Using your C post as the common or ground: Either C-A or C-B will deliver 0-14volts to the track. C-D will give you 14v fixed and C-U will deliver 6 volts fixed.

Just be sure your concrete floor is dry, not damp. Especially with a transformer. Make sure the floor is swept clean first. Dirt, dust or sawdust on the floor can find their way into the locomotive gears. I don't know when the last time was you ran the train? You may want to clean and grease the gears if they look dry. Go to a hobby shop for a good model lubricant. You may also want to clean loco wheels and track. Turn engine upside down on a piece of egg-crate foam, or in your lap. Have your transformer on with wires that have alligator clips (clips make it easy - bare wires will do). Use a napkin damp with 91% isopropyl alcohol (other blends don't clean as well) and with wheels turning, hold the damp towel to the wheels. Wipe down center rail contact rollers too. 91% isopropyl alcohol works good as a track cleaner too.
Good luck. brianel

brianel, Agent 027

"Praise the Lord. I may not have everything I desire, but the Lord has come through for what I need."

  • Member since
    April 2003
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Posted by Anonymous on Saturday, December 6, 2003 1:48 AM
Brianl. Thank you for the information. I really appreciate it. How do i determine what voltage the engines we have require? You indicated in your message to use wires with alligator clips, but other then the center roller where do I connect the other wire to the engine to make it run to clean? Since these engines and cars are at least 49 years old is there any place you might recommend to have any service work done or to purchase parts that mat be required?
Thanks again. Archie
  • Member since
    December 2003
  • From: St Paul, MN
  • 6,218 posts
Posted by Big_Boy_4005 on Saturday, December 6, 2003 2:14 AM
Brian did a nice job describing this. Use the 6-20V for the track and testing. Clip the other lead to any unpainted metal non moving part of the engine. Most of the mechanical parts you might need are available. check your local yellow pages under hobby and look for one that sells Lionel trains. They should be able to help you.

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