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John D
DRIVETRIBE
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Comments by "John D" (@johnd8892) on "James May reassembles train" video.
At 1:17 from the service sheet you should be able to see a tiny ball bearing that should be located at the end of the motor shaft. Should be one at each end of the motor shaft. In disassembly it is easy to lose these bearings if not careful. Has James lost these or not put them back where they should be with the right amount of play? If not the motor will be far to noisy and or tight and not work with near sewing machine smoothness as they should. Useful to use the multimeter to test the current draw of the motor when running in on its own for a few minutes at about 6 volts. Should draw around 200mA or less from memory. If much more current is drawn then there are some problems still to be addressed. Useful for each assembly step is to check the current draw is not increasing too much indicating more problems from that step. Never heard of any model train recommending grease to be used as motor shaft bearing lubrication. In the Hornby Dublo and Wrenn locos you should see a felt oil retaining pad at the end of the motor shaft to retain the recommended light oil. Grease is for the sliding spinning nature of the worm and worm wheel gears.
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