Hi folks, I think my 8957 needs to go in for repair. I have a motor problem. Any suggestions?
Okay you have a motor problem please explain we may be able to help you if you explain what is going on. Also in the future other than just the number ( which helps a lot ) not all know what is what by number please tell us what type of engine it is as in your case a GP-20 Burlington-Northern is it a pul-mor type motor or is it a can motor?
Life's hard, even harder if your stupid John Wayne
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Okay looked up your engine it has a Pul-mor type motor now all we need to know what is going on as it might not be the motor per-say it could be something else. Those motors are pretty tuff little motors. it may just need some attention like brushes cleaning and lubing etc.
Sorry for the poor information. It is a Pul-mor motor. When I bypassed the e-unit it ran slowly and didn't sould good. I am also thinking I need the plastic repair that I did redone properly. I don't see anyway to replace that bottom plastic piece.
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I think the piece of Plastic your talking about is part number 8030-80 and olsens has it for $10 + shipping but there may be ways to save your piece depends on how bad it is.
mgbbobWhen I bypassed the e-unit it ran slowly and didn't sould good.
What connections to the motor did you make? It sounds like you connected the transformer to the brushes.
Rob
Hi, Jeff from the Train Tender helped me through the wiring process. That being said is there a guide on how to wire various motors when isolated from the e-unit. I have several lionel books but there are only the schematics. I haven't been active working on these things for a couple of years and I have to admit I am a little foggy. Most of what I think I knew has been put in long term memory storage. Slowly coming back but I could use some help. I have installed drive gears, drive wheels and e-units in the past so I have some experience. I am no retired and hope to spend more time catching up on projects.
To test the motor by itself, wire the armature in series with the field. That is:
o Connect one transformer terminal to one of the motor brushes.
o Connect the other motor brush to the field terminal.
o Connect the motor frame (which is probably the other end of the field winding) to the other transformer terminal. If the locomotive is on the track this connection can be through the wheels to the outside rails.
Do not connect the motor field and armature in parallel. The motor may run, poorly, but you risk burning out the windings.
Bob Nelson
Thanks Bob.
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