Quote:
Originally Posted by Mr. Lim
Please do exactly what is stated above. Do not take any shortcuts.
Remove all your breakers from your drivetrain.
Put one in, check that the motor for that breaker is both:
a) running - a dead motor work will against you, and can cause potential brownouts
b) is running in the CORRECT DIRECTION - this is very likely the problem as you are browning out even when you are up on blocks. My best bet is that you have a gearbox with multiple motors going into to, and one of them is running in the wrong direction.
Remove that breaker, and install it on the next drivetrain motor. Do not install more than 1 breaker at a time when doing this check.
There are a lot of posts in this thread with a lot of "noise" but please ensure you do this 100% before moving on.
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These are the most concise instructions that will likely locate the source of your problem.
The one other thing I would suggest would be to do a "pull test" on every wire connection to make sure every crimp is done correctly. I know you have stated "I can say with 100% certainty that our wiring is not the problem. The wiring is pristine, and correct." but you have not indicated how you have verified that your opinion is correct. I cannot count how many times I have been asked to look at "pristine" and "correct" looking crimps that, later, failed the pull test.