Weird acceleration behavior.

My Legacy SD60E has started a weird behavior where as its accelerating and reaches speed step 23 it slows to a speed slower that step 22 but continues to accelerate.  Any thoughts on this? It's really peculiar. This doesn't occur with my other legacy engine an FEC E44AC.

Original Post

Any chance your engine might have an item number?  Remember, Lionel did Legacy in modular boards and the later and greater RCMC system.

 

 

TCA-79-13758

T.T.O.S.-3057

LCCA-28444

LOTS-RM-4833

MTH Railroaders Club-17209

MTH DCS and Wi-Fi  Beta Tester

MTH Factory  Certified Technician-6 schools.   Repair Technician #990284

LIONEL Factory Trained Certified  Repair Technician #10140

Member Mid America 3 Railers and NJ HiRailers

 

 

 

There’s something about speed step 23. This sounds ridiculous, but on my scale Lionel B&O F3 the engine would run fine for several minutes at step 23 and all of a sudden it would stop. When I backed off to step 22 it started moving normally. Mike from Lionel said to just replace the main board but at $100.00 I decided it’s cheaper to just bypass step 23 and go right to step 24 or 22. After several months running like this I was cleaning the wheels and noticed one of the rollers had a small bind to it. I oiled both the rollers and has now been running at step 23 for several years perfectly. I just have no explanation for this other than electronics and AC trains can have unexplained gremlins hiding within.

Rod Miller

Lagerstout posted:

Actually somehow in the past 24hrs the issue resolved itself when I ran the engine this evening.

Usually when a symptom "resolves itself" that is not really what happened. It's an intermittent thing. If you did not find what was causing it, the behavior will happen again.

RoyBoy

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Alan Mancus


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