I am brand new to model railroading. I have a prewar (1938) American Flyer train set and a number of accessories that have been in the family since the 1940's. The train was always under our Christmas tree, but unfortunately I was never the one to set it up. The internet has provided a wealth of information to help me get started, but now I have run into a roadblock with my transformer.
I have an American Flyer model 7 transformer. It has four posts.From left to right I will number them 1, 2, 3, and 4. Post 1 (far left) is Base. Posts 1 to 2: 7 to 14v. Posts 1 to 3: 14 to 22v. Posts 2 to 3: 7v only. Posts 3 to 4: Connect Whistle 9v.
The train will run with track power 14 to 22v. The motor will hom but not run on 7 to 14v. I am confused and certainly do not want to burn up a motor by applying too much voltage.
Is anyone familar with this transformer and what voltage levels should be used?
Thanks for any help.
If the locomotive is reasonably well lubricated and runs at the speed you want, the voltage is not too high. Use 1-3.
Bob Nelson
Welcome to the forum!
Your train should run at the upper end of the 7-14 volt range. More than likely the locomotive needs to be serviced if it has not been. The motor needs to be cleaned and lubricated, and the gears need to have all old grease removed and fresh grease put in. The axle bearings need a drop of oil also. Use hardware store naphtha to clean all old dirt and grease from the loco, motor and wheels. Be sure to clean the wheels of the tender if you have a steam locomotive, and clean the track also with the naphtha. After a thorough cleaning and lube, the loco should run better at a lower voltage.
What is the loco number on the cab?
Larry
Thanks for the information Larry. The locomotive is a No. 425.
I was hoping to use a fixed voltage for my accessories, but it does not look like I can do that with this transformer.
Dave
You may get 15 volts between posts 2-4. At 75 watts, the transformer will power your train and a few acessories.
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