New 2 me Tree Mill, lots of questions

[aluminum]

Hello there. Some of you may recognize this mill from my other thread for help with the purchase decision and initial research.

She's home and in my garage. I'll have lots of questions and I appreciate you all so much for already having been so helpful and encouraging with my lathe in the recent past, and now this mill.

So I'll post a bunch of photos as an opener and would like to start by asking for help with identifying power requirements. My assumption was that this would need 3 phase 220v and I would purchase a RPC but I'm seeing on the schematic reference to 440v. Can someone help to clarify?

Thank you.

 

[Martin W]

Wow, what a beauty. You did well! It will clean up nicely. Looks like a dual voltage 220/440 motor. Contact an electrician to get the proper RPC and wire requirements. Or be patient and someone here will be along to give you better guidance.
Martin W

 

[markba633csi]

Machine is dual voltage so might be already set for 220v

 

[Karl_T]

Your print references both voltages. Look top center on it and then look at the connections of the little transformer.

I will just mention a VFD would be nice on this unit. A bit more work to install but gives nice variable speed. Several threads on this VFD vs. RPC. You read and decide.

If going RPC there a couple real nice RPC kits where you just supply a used 3 phase motor. Much more cost effective.

 

[piper184]

Looks like a good machine. You will get quite an education about it as you take it apart for cleaning and or restoration. Lubing and minor repairs will get it up and running.
I like the older electrical boxes were they actually were big enough to work in and not have everything jammed in tight.
+1 on the VFD idea. You can get pretty decent ones for not much money and they not only allow speed control, but they are fairly quiet. Most come with the option for remote control switches or the control panel can be removed and extended with a long ribbon cable.

 

[OTmachine]

Your print references both voltages. Look top center on it and then look at the connections of the little transformer.

I will just mention a VFD would be nice on this unit. A bit more work to install but gives nice variable speed. Several threads on this VFD vs. RPC. You read and decide.

If going RPC there a couple real nice RPC kits where you just supply a used 3 phase motor. Much more cost effective.

Needs an RPC, as it has multiple 3PH motors, (spindle, drives, spindle brake).

 

[Flyinfool]

Nice find
I love my Tree, even though it is older than I am.
I used to work in the very building that was the home of Tree. There are to this day Tree stickers and logos everywhere in that old building.

As OT mentioned, there are 3 motors, You either need 3 VFD or one RPC. I went the route of RPC on my Tree. That same RPC also powers my lathe and surface grinder.

On the Tree, assume nothing. When I bought mine I was told the power feed did not work The motor would run but once engaged it could be stopped with light pressure from one finger. It turned out the the Spindle motor was wired for 220 and the drive motor was wired for 440 and being fed 220. Switched the wires and all was good. It also meant that the drive mechanism was essentially still factory new because it had never been used.