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Posted on Jan 11, 2018

Lionel Trainmaster KW 190 Watt Transformer

The connecting posts on the back side of the transformer are loose, causing the transformer not to work. I can tighten a couple of them, but the C and D posts are very loose. I can't seem to tighten them or find a way to open the transformer case to trouble shoot inside. Can anyone help with this issue?

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Mel Lynch

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  • Posted on Nov 08, 2018
Mel Lynch
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The Lionel postwar 190watt transformer is an excellent power supply for trains. If one or more of the binding posts are loose ("U,A,B,C,D" Terminals") you will need to replace the binding post, use a T-159 replacement Binding Post. The original posts are soldered and crimped on.
The T-159 replacement binding post is bolted on. UNPLUG THE TRANSFORMER Carefully pull/pry up the handles and remove them remove the 4 Philips screws on the top, lift off the case top, the binding posts stay with the body of the KW.
Remove the loose bindings post one at a time as needed. Be sure to get any wire reattached. Reverse the procedure to reassemble.
Lionel Trainmaster KW 190 Watt Transformer - img_1714-5hjdpyhc5slt0igtdkxovnan-4-0.jpg

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Jan 07, 2009

SOURCE: Lionel train power issue

Answer a number of questions:
Is the tranformer power adequate for the train and is it a working tranformer?
Will the train run by connecting the wires directly to the two points of the train (wheels and center rail connector)?
Are the tracks new?
Is the lockon new?

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A

Anonymous

  • Posted on Dec 24, 2010

SOURCE: We have a Lionel 80-watt

This transformer is difficult to open unless you have the triangular security screw driver. Security bits can be purchased at any Harbor Freight tool store but you will need to adapt them to fit into the channels where the screws are recessed. Click on the link below to view the correct tool needed to correctly open this unit up:
http://www.amazon.com/Silverhill-Triangle-Screwdriver-Roomba-Happy/dp/B001F3FUBK/ref=sr_1_1?ie=UTF8&s=hi&qid=1277110784&sr=8-1-spell

Anonymous

  • 1 Answer
  • Posted on Dec 25, 2010

SOURCE: New Lionel Polar Express train set-up issue. The

My son just got this train and we are having the same problem. Taking the last car off solved the problem for us. I think it has something to do with accessories and the transformer voltage output (See page 14 and 15 of the instructions).

I have still not determined why it won't run with the final car but am assuming it has something to do with the lights on the cars pulling too many amps and not enough left to run the train. I will let you know if I find a solution. If anyone else knows how to solve the issue, any assistance would be greatly appreciated.

Thanks

Anonymous

  • 6 Answers
  • Posted on Dec 26, 2010

SOURCE: Please provide me with the

  1. ho u can do that
  2. um
  3. hrer

Anonymous

  • 10 Answers
  • Posted on Aug 04, 2011

SOURCE: No longer have manual for

See link below to PDF file with instructions to your transformer. It looks like you are correct with regards to the wiring with what I can see in the manual.

Hope this helps and good luck

www.lionellines.com/files/manuals/KW_Manual.pdf

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Hope this helps and good luck

www.lionellines.com/files/manuals/KW_Manual.pdf

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