Originally Posted by
Cecilia S.
when full-pedal-pushed, the movable part of the rheostat does not contact those two copper pieces. Should they? Thank you in advance! Would you like me to post a photo to be clear, or was the description clear enough?
That buzz suggests it's resistance from the machine, but Tammi's pic is
here and the copper strips extend toward each other from the terminals at the side and they are indeed supposed to make contact. I think your description was fine.
You can bend them or move the rheostat so they do make contact. Tammi's page is very good at explaining how it works.
Oh and if you want to check it, you can connect the two wires inside together. When you switch the machine on it will be running at full speed for sure. For those who are gasping right now, obviously this is just to test and you wouldn't leave it like that!