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Originally Posted by FrankJ
Another possibility would be to run it with a known load
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Easier said than done, if you don't have a dynamometer.
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& compare its speed & current draw against a new motor.
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You can compare a questionable motor to a known good motor by using the
same load for each test. You don't necessarily have to know what the numerical value of the load is.
For example, if you have a CIM-powered elevator lift you can measure the lift time for a good motor and a suspect motor (using the exact same throttle command each time), and compare the results.
They showed me a new item and said "we don't know how to list this on the inventory." I took one look, started laughing and said "In my world that is called a game piece, aka, a tote." - RoboMom [more] 
28-05-2015, 16:17
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