i HAVE A PAIR OF 2023 DIESELS THAT I RUN TOGETHER BACK TO BACK, WITH A 20 YEAR OLD ELECTRONIC REVERSE UNIT REPLACING THEIR E UNITS. tHIS WAY, THEY PROCEED AHEAD TOGETHER AFTER STOPPING FOR SEVERAL SECONDS AS THEY MIGHT AT A BLOCK SIGNAL. OBVIOUSLY, I HAVE A CHOICE AS TO WHICH UNIT IS IN THE LEAD POSTION. WHEN i RUN WITH LOCO A AS THE FIRST, IT WILL FREQUENTLY HAVE ITS COUPLER RIDE UP AND OUT OF THE COUPLER OF ITS MATE; WHEN I REVERSE THEM THE PROBLEM DISAPPEARS, BUT THIS MEANS THAT THE RUNNING SEQUENCE IS NOW REVERSED AND THE TRAIN MOVES BACKWARDS AFTER BEING AT A STOP.. I AM AWARE THAT OVER THE YEARS THE COUPLERS HAVE DEVELOPED PLAY IN THE WAY IN WHICH THEY ARE MOUNTED AND THIS IS THE PROBLEM. I COULD TRY TO REPAIR THE COUPLING WHICH I DON'T REALLY HAVE THE TOOLS OR SKILL TO DO. 2 POSSIBLE FIXES: A (PREFERRED BY ME) IF i REVERSE TWO LEADS ORIGINATING IN THE ELECTRONIC REVERSE UNIT WHERE THEY CONNECT TO THE MOTOR, WILL THAT RERERSE THE BEHAVIOR OF THE MOTORS (BOTH ARE CONTROLLED BY THE SAME ELECTRONIC REVERSE UNIT) SO THAT I COULD SIMPY TURN THE LASHUP AROUND?. POSSIBILITY 2 WOULD BE TO GET A SMALL PIECE OF SHEET METAL, AND DRILL AND TAP THE COUPLERS AND SCREW THE SHEET METAL ON TOP OF COUPLERS PERMANENTLY CONNECTING THEM. IDEAS?
Check the couplers for alignment. If the locos have been dropped in the distant past, it is possible that one of the couplers is not aligned correctly. With the locos on the track, look to see if the couplers mate properly. If one is higher than the other, you will experience the problem you describe. I just looked at my 2023, and the couplers are attached to a flat piece of steel that is attached to the truck. You should be able to bend this if necessary without disassembling anything. Be gentle. I would recommend you grab the coupler with a pair of needle nose pliers.
Bruce
On the other hand, the problem may not be allignment, but too much 'play' between the truck and the body frame. For this problem, I recall previous posters have recommended adding a washer between the truck and frame to eliminate tilting of the truck.
Typically this is a problem with longer consists. With just 2 engines moving together, for this to be a problem, one must be trying to pull away from , or pushing into the other. This possibly explains why it only happens in one direction. Perhaps the motors could be made more synchronous by careful attention to lubrication and/or other maintenance on the laggard.
runtime
Don't you have three wires connecting to the motor, one to the field and the other two to the brushes? In any case, swapping the two to the brushes should do what you want.
Bob Nelson
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