20 Most Recent Lionel Cw 80 Transformer Questions & Answers

I have had the same problem with my polar express, which i just bought recently. Having to send it to the USA from the UK would be very expensive so i decided to open it up myself. The tamper proof screws were a bit of a problem getting into it. I ground down an old screw driver into the triangle shape to undo them. I then replaced them with self taping srews the same size.
The Problem I found was simple, there is an internal (250V, 8Amp) fuse soldered onto the red wire on the secondary winding of the transformer. The red wire going from the transformer to the PCB, the fuse has black heatshrink over it.
There is no room inside the housing of the controller to fit a fuse holder. I fitted a box on the side of it with a panel mount fuse holder. drilled a hole through the housing, fitted longer red wires, so they could go through to the terminations on the back of the fuse holder.
At least now I can change it simply if it blows again.

hope this is of help to you.

Lionel Cw 80... | Answered on Jul 22, 2018

Looking at auction pictures, I'm going to say that odds are the fuse is located in the main unit. You can pick up those tamper proof screwdrivers at Harbor Freight pretty cheap. Please make sure that you've properly discharged the unit before attempting any repairs.

Lionel Cw 80... | Answered on Oct 25, 2017

Fixya is unable to advise parts sources.

Lionel Cw 80... | Answered on Aug 13, 2017

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.

Lionel Cw 80... | Answered on May 22, 2016

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

Lionel Cw 80... | Answered on Oct 09, 2014

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:

Lionel Cw 80... | Answered on Jun 16, 2014

New wire and plugs are available at chuckstrains.com , they can also tell you how to get into it

Lionel Cw 80... | Answered on Jun 16, 2014

The internal fuse is probably blown. Contact Lionel at Lionel.com for instructions on how to get a replacement.

Lionel Cw 80... | Answered on May 06, 2014

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