Lionel ZW service manual

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  • Member since
    April, 2003
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Lionel ZW service manual
Posted by Anonymous on Sunday, January 21, 2007 8:33 AM
I just purchased a 275 ZW which "hums" I'd like to repair it. Is there anywhere I can download the service manual?
  • Member since
    July, 2006
  • From: Plymouth, MI
  • 1,615 posts
Posted by chuck on Sunday, January 21, 2007 10:47 AM

Olsen's Toy Train Parts has the service manual on line. 

When everything else fails, play dead
  • Member since
    September, 2002
  • 548 posts
Posted by Chris F on Sunday, January 21, 2007 11:25 AM

Here's the link:

Unfortunately, I couldn't access the site this morning (not uncommon on weekends).  When it's up, enter the library and look for the transformer listings.

IIRC, excessive hum is caused by a loose coil and laminated stack asssembly.  The same problem was found with KW transformers.  Both units were changed to riveted assemblies (the KW in 1957).  Access the KW service section of the site for further information.

  • Member since
    September, 2002
  • 548 posts
Posted by Chris F on Sunday, January 21, 2007 9:58 PM

Here's a link to a previous topic on transformer humming:

Unfortunately, the link to the OGR forum topic that I posted in that topic is no longer active.  If tightening the ears to compress the laminations doesn't work, you might try posting the question on that forum.  The alternative is to live with the humming, or teach it the words.Big Smile [:D]

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