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LOCOMOTIVES STALLING ON TRACK

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  • Member since
    January 2009
  • From: Bakersfield, CA 93308
  • 6,526 posts
Posted by RR_Mel on Thursday, April 2, 2020 3:26 PM

A thought occurred to me.  If the section of track at the interchange is isolated with insulated joiners check to see if the wires to the section where the problems occur are reversed.  If the gap at the joiners is wider than wheel contact it could be that the momentary abrupt change in polarity could be your problem.
 
 
 
 
Mel
 
 
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
  • Member since
    March 2011
  • 1,950 posts
Posted by NVSRR on Thursday, April 2, 2020 2:58 PM

A lighted passenger car would do the same.    A good idea to check the area out.   

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

  • Member since
    January 2009
  • From: Bakersfield, CA 93308
  • 6,526 posts
Posted by RR_Mel on Thursday, April 2, 2020 12:42 PM

Many many years ago I installed a 12 volt bulb on a box car using the trucks for power pickup looking for problems.  I just pushed it around watching the bulb to flicker.
 
I was 14 at the time and didn’t have a multimeter back then.  That was in the early 50s and back then the rails were iron or steel and tough to keep clean.  It really helped me back then, you might give that a try.  Watch for the bulb to flicker before the locomotive stalls, several cars between the bulb car and the locomotive would extend the warning before the locomotive stalls.
 
 
Mel
 
 
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
  • Member since
    December 2015
  • From: Shenandoah Valley
  • 9,094 posts
Posted by BigDaddy on Thursday, April 2, 2020 11:52 AM

eds-trains

                I have been working on my small 5’ x 12’ HO layout for about 10 years. It is powered by 16 ACV output from aModel Rectifier Corp. Dual Loco transformer connected to a NCE DCC 5 amp SB3a smart booster. The booster is connected to a DCC Specialties PSX-1 power shield circuit breaker before connecting to 14 awg buss. 

20 awg feeders are spaced every 3 feet +/-.

 The trains had been working great up until 6 months ago. We were about to move so I had to take everything down and disconnect all electrical components and box them for the move. As it turned out the house selling deal fell through twice and we decided to stay put. I have since reconstructed the layout and have been running trains.

Everything seemed to be ok except for a little hesitation of the locos on the track in the center of the layout where I have an interchange. Now the hesitation has become stalls. This starts about 2’ to 3’ both before and after the interchange.

I have added feeders to these areas and have very carefully cleaned the track and wheel sets with very little change. I have checked the output voltage at the booster (13.9 ACV) and along the track where the stalls occure (13.7 ACV) using my digital multimeter. However, I don’t have anything to determine current draw at these locations.

Without have much else to do during these crazy times, I’m very frustrated. I would greatly appreciate any help or suggestions from my Model railroad family. 

 

Stay Well

Ed

Sorry but I had to make it more readable.

You mention Interchange as if there is something special about wiring an Interchange.  Did you disconnect any feeders in prep for the move?  Is there any indication this is a short?

 

Henry

COB Potomac & Northern

Shenandoah Valley

  • Member since
    January 2009
  • 59 posts
LOCOMOTIVES STALLING ON TRACK
Posted by eds-trains on Thursday, April 2, 2020 11:45 AM

                I have been working on my small 5’ x 12’ HO layout for about 10 years. It is powered by 16 ACV output from a 

Model Rectifier Corp. Dual Loco transformer connected to a NCE DCC 5 amp SB3a smart booster. The booster

is connected to a DCC Specialties PSX-1 power shield circuit breaker before connecting to 14 awg buss. 

20 awg feeders are spaced every 3 feet +/-.

 

The trains had been working great up until 6 months ago. We were about to move so I had to take everything

down and disconnect all electrical components and box them for the move. As it turned out the house selling

deal fell through twice and we decided to stay put. I have since reconstructed the layout and have been

running trains. Everything seemed to be ok except for a little hesitation of the locos on the track in the center

of the layout where I have an interchange. Now the hesitation has become stalls. This starts about 2’ to 3’ both

before and after the interchange. I have added feeders to these areas and have very carefully cleaned the

track and wheel sets with very little change. I have checked the output voltage at the booster (13.9 ACV) and

along the track where the stalls occure (13.7 ACV) using my digital multimeter. However, I don’t have anything to

determine current draw at these locations. Without have much else to do during these crazy times, I’m very

frustrated. I would greatly appreciate any help or suggestions from my Model railroad family. 

 

Stay Well

Ed

Ed

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