Ok , I just got here so I hope everyone is doing well. I have an older model acra mill 3 phase that I bought new several years ago. It has held up pretty well and a few days ago I lost low speed on the machine. The reverse low doesn't work at all and the forward only hums. I don't have a meger to check the windings so I rigged up a light bulb on a 9volt battery and the windings seem to be intact even though I can only check for a circuit not amperage , no broken wires going from the switch to the weather head and no loose connections that I can find. The barrel switch looks kinda cheap so I was wondering if any of you guys had an acra mill and had the low speed go out on the switch . Low is basically all I ever used on the machine . The high speed runs fine on forward and reverse. Thanks for any ideas or help on finding the problem.