[little_one]

Hi folks.

A great condition Grizzly G6760/X6320A mill followed me home. I am really pumped to have it in my garage. It was under power when I checked it out and I can't wait to make some chips with it. Except, I can't figure out how to wire it.

It was wired with a 240 Volt plug. Single phase. My understanding from research is that this particular mill can be connected to 120 Volt OR 240 Volt.

My mill has the YL90L-4 motor and a LW5-16 drum style switch.

It didn't come with the manual so I got a new one from Grizzly. Except, it doesn't go over wiring it 120 Volt.

I tried calling Grizzly tech support but the advice I got doesn't make sense to me. I've had electricians come take a look at it and they can't decipher it either.

Grizzly tech support told me U1 -> T1+T3, U2 -> T2+T4 (I think he should have said V2), Z2 -> T5, and V1 -> T8. And I didn't understand how to connect 120 volt to the drum switch, black/white/ground.
Attachment 383250
Attachment 383252

The motor seems to be connected as such, Z1 black wire, V2 blue wire, U1 red wire, and there is a jumper from V1 to U2 to Z2.

Attachment 383258

The switch is connected as such
T12 - nothing
T8 and T4 have a black jumper
T4 and T2 have a black jumper (T2 is connected to the motor by blue V2)
T10 and T6 have a black jumper (T6 is connected to the motor by red U1)
T9 and T11 have a black jumper (T9 is connected to a red lead from the 240 plug, labeled U)
T7 and T5 have a black jumper (T5 is connected to the motor by black Z1)
T3 and T1 have a black jumper (T1 is connected to the black lead from the 240 plug, labeled V)


I'm under the impression that wiring it with 120 volt 20 amp outlet is just a matter of changing the jumpers around on the switch and inside the motor, but yeah, no one seems to understand it clearly. I need some hand holding. I really don't want to let the smoke out.

Worse case scenario, I have 240 volt power in my garage already (for a Haas TL-2), and I'll have to add another 240 outlet to that circuit, but I don't know if I have proper wire gage to handle increased amps.

So I'm hoping/praying that someone out there in the zone has done this before or knows of someone who has.

[whimsical]

I am not real good with motors but i can usually get it sorted but i would need to meter out the switch and work it out so sorry not a lot of help being so far away. It seems to be a 3 phase motor with caps to create the other 2 phases. I have never played with that sort of motor before.
I responded mainly to point out that the motor will draw less current when it is in 220V mode. The plate shows 17/8.5 A that is 17 for 110V and 8.5 for 220V. So if you have cable for 110V for this motor then the cable will be fine on 220V as it only requires half the current. Remember Power = V X amps