Question about Lionel Cw 80 Transformer

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Transformer doesn't shut off completely

I have a new Lionel set with a CW-80 transformer.  At first it worked fine.  Gradually it began behaving strangely.  More throttle was needed to get the train moving, train speed changed abruptly without any throttle change, the reverse function became erratic, and then the engine stopped moving.  It's not dead completely, lights and sounds still come on, but erratically.  The power to the track never shuts off completely like it used to.  Even at zero throttle, lights and sounds still come on.
Your help is greatly appreciated.  Thanks in advance.

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: My new Lionel CW-80 trans former stopped working

I did the same thing as brian-sw. Opened the unit, removed the old in-line fuse and added an external fuse holder to make it easier to replace in the future. Transformer is difficult to open unless you have the triangular security screw driver. Security bits can be purchase from Harbor Freight but you will need to adapt them to fit into the channels where the screws are recessed. It certaintly would have been nice if Lionel installed an external fuse or circuit breaker. Guess they didn't want to loose the repair business.

Posted on Dec 19, 2008

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  • 1 Answer

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?

Posted on Jan 07, 2009

  • 2 Answers

SOURCE: lionel CW - 80 transformer

Check out this link, I think it will help.

http://www.lionel.com/media/servicedocuments/71-4198-251.pdf

Posted on Jan 20, 2009

  • 4 Answers

SOURCE: Can I use the cw-80 transformer on any Lionel

You should be able to. The Lionel transformers all put out AC power, not DC and many Marx and American Flyer transformers will work too. The real question is total amount of power being drawn and whether or not you have the wattage to match your engine and accessories. With the CW-80 though, it should put out plenty. I run my pre-war 1666E engine pulling a full compliment of metal cars with no problems using a CW-80.

Posted on Feb 10, 2011

  • 13 Answers

SOURCE: is lionel 40 watt transformer from toy train

need a larger out put transformer 90 watt or greater....

Posted on Nov 20, 2011

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You can't. These transformers aren't user serviceable. You can thank the Federal Government for that. If you can find the special tool to remove the case, you'll be able to open the transformer. For service, contact Lionel customer service or take the transformer to a Lionel Service Center.

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On the base of the transformer you will find 4 tamper proof screws that you will need to remove to open the case. A triangular blade screwdriver will be need to do this. Once removed the tamper proof screws can be replaced with self tapping screws.
Silverhill Tools ASDTR1 Triangle Screwdriver

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Can I use the cw-80 transformer on any Lionel train set from year 1948 to the preasant , thanks George


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