Lionel Transformer Type LW Whistle Button Problem - Model Train Forum - the complete model train resource
Model Train Forum - the complete model train resource  

Go Back   Model Train Forum - the complete model train resource > Scale Specific Model Train Forum > O Scale
Forgotten your password?

O Scale Atlas, Bachman, Hornby, K-Line, Lionel and classic toy train discussion.


Reply
 
Thread Tools Display Modes
Old 02-16-2012, 11:40 AM   #1
epattyj
Hobo
 
Join Date: Jan 2012
Location: Palm Bay, FL
Posts: 11
Lionel Transformer Type LW Whistle Button Problem

I bought a Lionel Type LW transformer and when I depress the Whistle button I can see a change in voltage on my layout but the two trains I tested do not whistle with this transformer. I tried an old #2055 steam engine and a new Strasburg #475 steam engine. The Lionel 2055 is typically hooked up to a Type CW transformer and since both the engine and the Type LW transformer are postwar I expected that they should be comaptible.
I wired the transformer per the transformer's manual but did also test reversing the leads. When I open the transformer and depresss the Whistle button I can see that it slides down to make a new contact with a copper head. I do not see any loose or broken wires. I did have to reset the lever for the Direction button because it was working in reverse (making contact instead of breaking contact). So I am sure someone was under the cover before me.
Does anyone have any ideas on troubleshooting this problem? It is a great little transformer but without the whistle button functioning I hesitate to use it.
epattyj is offline   Reply With Quote
Old 02-16-2012, 12:21 PM   #2
gunrunnerjohn
Admin
 
gunrunnerjohn's Avatar
 
Join Date: Nov 2010
Location: SE-PA, USA
Posts: 21,828
Scales Modeled: O-gauge 3-rail
Images: 4
Would the Lionel LW Transformer Maintenance Manual help?
gunrunnerjohn is offline   Reply With Quote
Old 02-16-2012, 01:43 PM   #3
epattyj
Hobo
 
Join Date: Jan 2012
Location: Palm Bay, FL
Posts: 11
This is awesome. Thank you!
epattyj is offline   Reply With Quote
Old 02-16-2012, 01:48 PM   #4
gunrunnerjohn
Admin
 
gunrunnerjohn's Avatar
 
Join Date: Nov 2010
Location: SE-PA, USA
Posts: 21,828
Scales Modeled: O-gauge 3-rail
Images: 4
Glad we could assist, let us know if you sort it out.
gunrunnerjohn is offline   Reply With Quote
Old 02-16-2012, 02:28 PM   #5
BigAl56
Engineer
 
BigAl56's Avatar
 
Join Date: Dec 2011
Location: Chicago
Posts: 882
Scales Modeled: O
Images: 17
If the power is dropping severely when you press the Whistle control that is usually caused by a shorted or worn out rectifier disk. Lionel postwar transformers used a crude diode device to create DC used to operate the whistle. Over time they can wear out. These donut shaped disks are common replacement parts. I recommend replacing it.
BigAl56 is offline   Reply With Quote
Old 02-16-2012, 03:02 PM   #6
tjcruiser
Moderator
 
tjcruiser's Avatar
 
Join Date: Jan 2010
Location: Rhode Island
Posts: 14,683
Scales Modeled: HO ... and growing Lionel O
Images: 64
When you press the whistle button, you should have a DC signal sent out to the track ... initially around 3 V to trip the whistle relay, then around 1 V to hold it there.

Can you use a meter to check for the DC signal?

TJ
tjcruiser is offline   Reply With Quote
Old 02-16-2012, 03:45 PM   #7
gunrunnerjohn
Admin
 
gunrunnerjohn's Avatar
 
Join Date: Nov 2010
Location: SE-PA, USA
Posts: 21,828
Scales Modeled: O-gauge 3-rail
Images: 4
Actually, if the rectifier was shorted, the power would just go up, since it's in series with the boost winding. If the power drops, that's usually a sign that the parallel resistor or the contact for it on the whistle switch is not working. Usually, it's the switch, the resistors are pretty robust.
gunrunnerjohn is offline   Reply With Quote
Old 02-16-2012, 03:54 PM   #8
big ed
Railroad Baron
 
big ed's Avatar
 
Join Date: Jun 2009
Location: New Jersey
Posts: 17,204
Scales Modeled: O right now. HO packed/ small N scale table, G scale for under the Christmas tree.
Quote:
Originally Posted by epattyj View Post
I bought a Lionel Type LW transformer and when I depress the Whistle button I can see a change in voltage on my layout but the two trains I tested do not whistle with this transformer. I tried an old #2055 steam engine and a new Strasburg #475 steam engine. The Lionel 2055 is typically hooked up to a Type CW transformer and since both the engine and the Type LW transformer are postwar I expected that they should be comaptible.
I wired the transformer per the transformer's manual but did also test reversing the leads. When I open the transformer and depresss the Whistle button I can see that it slides down to make a new contact with a copper head. I do not see any loose or broken wires. I did have to reset the lever for the Direction button because it was working in reverse (making contact instead of breaking contact). So I am sure someone was under the cover before me.
Does anyone have any ideas on troubleshooting this problem? It is a great little transformer but without the whistle button functioning I hesitate to use it.
I have to ask.

When you tested the engines I guess you had the tenders hooked to them?

I know the 2055, I don't know about the 475, but the whistles are in the tenders.

I don't know how new you are to trains so I thought I would mention that.

You would be there for a while trying to get the whistle to blow in just the engine.
__________________
Never Enough Room,Time or Money for all the Trains!
I like ALL SCALES/GAUGE'S, I don't discriminate.

big ed is offline   Reply With Quote
Old 02-16-2012, 04:32 PM   #9
epattyj
Hobo
 
Join Date: Jan 2012
Location: Palm Bay, FL
Posts: 11
LOL yes the tenders are hooked up I tested them using other transformers first.
Lots of awesome information from all you guys. I will post what I find if I get it working.
epattyj is offline   Reply With Quote
Old 02-16-2012, 04:39 PM   #10
big ed
Railroad Baron
 
big ed's Avatar
 
Join Date: Jun 2009
Location: New Jersey
Posts: 17,204
Scales Modeled: O right now. HO packed/ small N scale table, G scale for under the Christmas tree.
USA

Quote:
Originally Posted by epattyj View Post
LOL yes the tenders are hooked up I tested them using other transformers first.
Lots of awesome information from all you guys. I will post what I find if I get it working.

OK, I had to ask.

We can eliminate that being the problem.

Back to the electrical guru's.
__________________
Never Enough Room,Time or Money for all the Trains!
I like ALL SCALES/GAUGE'S, I don't discriminate.

big ed is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


» Visit These Sites:
LGB World

Or Our European Train Website ModelRailForum




All times are GMT -5. The time now is 06:44 PM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©2008-2013 Model Train Forum