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It would help if you can give more information, like what version of an MTH engine do you have and what type of transformer are you using with it? "Need info"; quote from movie "Short Circuit."

Most MTH PS-2 engines won't work properly with a CW-80 transformer.

Since it is an MTH engine use an MTH transformer with it. Logic would dictate using an MTH transformer, as Mr. Spock would say.

Lee Fritz

Marty Fitzhenry posted:

Did you change the battery before trying to start it?  If it has the old white battery in it and you attempted to start it, you have a problem.  You want a new green MTH battery in it.  Let us know where you are at with that and we may be able to let you know what is going on.

hello , i m near of paris , battery is changed , but no changes , only two bells and the noise of the engine

The way the control system of this locomotive works is you must only use 0-18V AC power, the center rail is hot and the outside rails are the return.  Put a new green battery from MTH in it.  The battery may read as charged, but due to age as soon as there is a power draw from the locomotive, the battery will go to low and cause issues.  Until you have a new MTH battery, a normal 9V battery from Duracell or Energizer will work for a couple weeks.

With track power off, place locomotive on the track.  Now turn the power up to 12-14V, you will hear the double bell and the engine starting sounds.  Once the sound shave all started, reduce the power to 8V, and you might get a air hiss sound.  Now push the direction button on the transformer and let go, or if there is no direction button, turn the power off then back on to 8V and the locomotive should now cycle into forward without losing any sounds.  If the sounds stop, the battery is bad.  If the sounds don't stop and you get a double bell again, then you were over 10V.  Once the locomotive is moving forward, a press of the direction button, or turning the power off then back on, will cause the locomotive to change direction states, going forward, then neutral, then reverse, then neutral, and starting back over in forward.  If the power gets cut off about 5 seconds then it will start up again in the same state as when first placed on the track, which is called the reset state.

david-from-france posted:

hello , i ve only analogic electric source , i made run old electric rolling stock like jep an hornby , it for that i believe that this doodlebug can drive also

I am not familiar with the reverser devices in JEP and Hornby. They may be manual reverse. 

Try interrupting the power a few times to see if the DCRU will change states. 

Is your mains 50hz (50 cycle electricity)?

Regards,

Lou N

 

 

 

 

 

 

 

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