Does anyone have any experience in replacing the motor for lifting the pipes? Is there any special way that motor has to be timed or indexed so that when it is lifted the crane moves over the off load ramp? Lionel has no service literature on this unloader.
Thans
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It looks like the motor shaft has a flat on it and is keyed to the gearbox. Electronics with optical sensors and a micro switch takes care of the proper movement of the mechanism.
Larry
Thanks Larry but that is the wrong motor. Part # 6SP2983205 was the original number which has been replaced by 6102062150. These both have worm gears. The worm drives two other gears which turn a square drive to raise or lower the pulley via the string. My question is what controls the stop of the string at the lowest and highest point to stop the current flowing to the motor preventing it from burning out?
Sorry, the numbers you give are for the complete gearbox, and I did not see the motor on it. Not having a unit in front of me, and seeing that there are optical sensors and a micro switch in the parts list, I would say that the design, using electronic components, limits the travel of the mechanism. Look at the mechanism and see if you can find them.
Larry
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