Hey Gang,
I have 3 Bowser C630Ms that I've converted to RailPro, all done the same with a TCS 8 pin connector stretched (I bought them too short), a LM-3S, a bridge rectifier spliced in as per the instructions on RPUG, a KA-4 and a slightly cut-down iPhone 4 speaker. I did remove the plug for the lights in order to mount the speaker, but I made sure that all pins were removed and the associated mounting hole were kept clear.
I did notice when doing the Motor Draw test that one was a little higher than the others and it needed a little more kick to get moving at 5% throttle compared to the others.
Halfway through a heavy op session (6 hours or so) with the trio, the one that had the higher motor draw would occasionally be shoved by the other three, usually in a switching move, with the unit in question travelling in the forward direction.
I also noticed that every now and then the trio would spool up, be at about 30% throttle and just wouldn't move, until you gave them a gentle nudge.
Figuring it might be a dirty wheel issue, once the units came home, I cleaned the fleet with my trusty Kadee Wheel Cleaner.
Two worked happy happy, but this particular unit would keep giving me a "Motor Overload" or a "Motor Overload +" warning at anything over 62% throttle. The only drag on the drive-train was the light pressure of the brush on the Wheel Cleaner required to maintain electrical contact. I did eventually get the wheels cleaned to my satisfaction, but it was a constant battle waiting for the unit to reset every time the Overload warning would trip.
Any thoughts as to what the issue might be or where I should be looking?