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I have the following problem with a select few of my TMCC locomotives. When they are creeping, they come to a stop, the clicking starts and I lose all ability to control the engine. The headlight doesn't blink at all. It happens at different spots on the track for each locomotive. If the locomotive is moving above a crawl it will get through the area of trouble.  If I shut off power and turn it back on, I can address the locomotive, but as soon as it starts to move the clicking noise starts and I lose control of the engine. I have to drag the engine a few inches until it will respond to my CAB1. I don't have to readdress the locomotive to have control. 

I installed a ground plane where tracks were close together or crossed over each other and cleaned the track many times, but the problem still persists. 

I have searched the forum and internet about this problem and only found someone mentioning it is caused by a failure of communication between the tender and locomotive, but this happens with my GG1 also.

Any help would be appreciated.

David

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The layout is 20 x 8. The additional ground wire is under the upper track and between tracks where they are close to each other. This is connected to the ground male prong of a three prong plug which doesn't have any other wire attached. The outlet which it is plugged into is new and when I installed it I made sure it was well grounded within the electric panel. It is not the same outlet or circuit which the transformers are plugged into. 

When this problem happens I remove the engine from the track or move it from the area and clean the area of track where the engine started making the clicking sound and move the engine back onto that section of track. The rollers are clean. 

I agree it probably has something to do with how the locomotive is picking up the power and signal of the track. What mystifies me (I'm thinking out loud here) is the engine is still getting power since all the lights are on and not blinking, and smoke is being produced, but something is interfering with the TMCC signal. The voltage is 17 to 18. The outside rails are grounded and the power houses and transformers are in phase.

Just to be sure, I will tonight clean the rollers and wheels of one of the offending engines and clean the track to make sure that isn't the cause of the problem.

Maybe a better way to describe this clicking noise is it sounds like static.

 

David 

Everyone:

Thanks for all your help in trying to figure out the cause of the problem. Last night I was able to get a locomotive to stall and start clicking.  After the locomotive stalled I moved it and gave the section of track a good cleaning with alcohol. I ran the locomotive through the area several times without any problem. It did stall when it reached another portion of track. I repeated the cleaning again with the same positive results.

I definitely have to raise my standard of track cleaning. Knowing the static happens when the voltage goes below 11 or 12 volts also confirms why the problem started. Tonight's job is hand clean all the tracks and then run a train with the track cleaning car.

Again thanks,

David

Ted Bertiger posted:

Muscle power in those arms will clean those tracks. Scotchbrite pads and some alcohol, not beer, will do it.

So how hard is Scotchbrite in relation to the plating on the rails. Will it remove plating at all or is it too soft for that?

On another note, a friend of mine used to have to clean his N gauge (KATO) track every week. So instead of using alcohol (isopropanol), he used a very sparing amount of WD40 (the miracle cure for everything ) on a cloth covered pad and his track stays conductive without weekly cleaning. Maybe it retards the oxidation of whatever plating there is on the rails? Also I would be concerned about the rubber tires on the engines, I don't know what kind of traction KATO uses on their engines. 

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