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My K-line K-3380-1361 PRR K-4 W/TMCC/Cruise Control takes a long time to get up to any reasonable speed.  I have to turn the dial on my Cab1 many, many times to get any speed at all.  I have tried resetting the engine and changing the speed steps to 32 but nothing seems to work.  This is something that just started happening.  Appreciate any help to get it back to operating "normally".

Last edited by JDA
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JDA 

I've repaired a few of these in the past, the issue on the few I fixed was the magnet on the flywheel came loose and was hitting/ rubbing on the speed sensor. 

  If this is the case you can try gluing the magnet ring back on to the flywheel and see if it  operates properly. If not then you will most likely have to purchase a Cruise M from Electric Railroad and bypass the  original cruise   

Thanks, Alex 

The second set is actually setting the R2LC TMCC ID and the engine type, those are done in PGM.  The speed steps at the end are done in RUN mode as is the first reset sequence in the document.  They're actually arranged backwards I suspect, you should first do the R2LC settings, then do the cruise reset.  The speed steps can be done anytime in RUN mode.

Since my engine is a command engine with cruise, I started with those instructions and then set the speed steps.  I did use the 128 step option.  All commands were completed in the "Run" mode.  It seemed to work even though I did not use the "Pgm" mode.  If the programming does not stay next time I run the engine, I will make the changes in the "Pgm" mode.

Last edited by JDA

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