The easiest way to run in a 540...

I have to let out the secret after all these years!

Get the new motor, DO NOT oil the bushings!

Connect it across a 12v car battery until you hear it start to make that awful screech, usually about 10 - 15 minutes or so.

At this point, disconnect it, oil the bushes, a couple of comm drops and you're ready to go.

It allows the bushings to loosen up with minimal wear to the brushes (keeping maximum tension on the springs), remember, these motors were originally designed for cordless drills etc.



thank me later!