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Wiring my Beaver Mill

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Robert James 321/12/2016 22:45:19
18 forum posts

I am some what confused. I have a Beaver VBRP MK1+2 Mill. The pig tail coming out of the head has four wires coming from it,,a white, a red, a blue and a green. The green is the ground that I understand. Which of the Coloured are L2, L2, L3. Does it make a difference. I will be running a phase convertor. It has all the lines marked so on it I know which is which on it. I the mill manual it shows two number five connections I understand that if the motor is running backwards you reverse those two wires and it will change directions. Can anyone confirm this for me? Thanks in advance.

John Stevenson21/12/2016 22:48:37
5068 forum posts
3 photos

Doesn't make any difference. It it goes the wrong way then just reverse any two wires.

I usually wire up Red / L1, White or yellow / L2 and Blue L3 but this is just the way i was taught.

Mike Poole21/12/2016 23:47:51
3174 forum posts
72 photos

+1 for RYB, I usually swap YB if it goes the wrong way.


Robert James 322/12/2016 01:20:57
18 forum posts

Thanks guys! I'm in the process of running the conduit for the feed. Do either of you have any experience with The factory push button switches? Mine look like they have disconnected for a while now. I have seen this kind of switch for years in the shop but I have no knowledge of them or how they work. Right now the motor pig tail is just hanging free. It was connected direct to the phase convertor using the switch on the head to turn on and off the motor. Where ever possible I plan to use the factory equipment unless it dosen't work and cannot be replaced. Again Thanks for your help!

Emgee23/12/2016 23:28:42
2317 forum posts
277 photos
Posted by Robert James 3 on 22/12/2016 01:20:57:

Do either of you have any experience with The factory push button switches? Mine look like they have disconnected for a while now. I have seen this kind of switch for years in the shop but I have no knowledge of them or how they work.

Robert, the START or JOG buttons have at least 1 pair of normally open contacs (NO) which close momentarily when pressed, STOP switches have at least 1 pair of normally closed contacts (NC) which open momentarily when pressed although some stop switch operators have a lock off function, these may need the use of a key to reset or simply rotate the button to reset to the NC position.


Robert James 312/01/2017 00:42:31
18 forum posts

An update for anyone needing a new motor start switch. Here in the States I found a company called WEG. They have a nice inexpensive replacement switch, mine cost about 66.00 usd. It works on the 220V 3 Phase I have to run. It senses a phase loss as well as overload conditions. I have one on order if this works as advertised I'm going to replace the suds controler as well. When I get it installed I'll post pictures.

sacha debres17/08/2018 11:03:48
1 forum posts


I am having a problem wiring my motor reversing switch on my beaver milling machine, when i went to replace the old one it came apart before i could make a note of the link wires and other connections.

The problem is i cannot make the wiring diagrams on the internet equate to my switch.

I am using a Kraus maimer ca10 the same as the old, ( small blue round one)

so does anyone have wiring diagram, or at all possible post a couple of pictures of a wired switch.

Many thanks with any help in this matter.


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