Warco Major mill wiring

Hello,

I am hoping someone can help me please. I have a Warco Major mill/drill MD30B and while trying to fault find too the switch wiring apart without taking a photo I also have 2 wiring diagrams and neither make sense to me with the numbered wires to the switches.

The pictures show the wiring diagram in the back of the mill and my switch panel. the wires are as follows. Red:7 Balck:8 White: 0,2,3, Two 4’s one has three connections, 5,6 and another 8.

if someone has a Warco Major Mill/Drill and would mind taking a picture of there switch wiring that would be amazing. or could explain the sequence. Any help would be greatly appreciated as at the moment i can't use it at all...

Edited By Stuart Barker 1 on 01/07/2014 16:02:13

Can you describe the button panel, EM stop with light to right and power on to left, you dont have reverse on the motor so what do the green buttons do.

Martin P

Twist emergency stop to release and engage power so the light is on, the lower green buttons are forward and reverse, the white button top left is normal stop.

then the diagram you are showing doesnt show FWD or Reverse

Martin P

that diagram in in the back of the mill, i have another which is this.

The drawing is self explanatory, based on what you have shown so far SQ1 is an option, I think, as you only have shown four buttons, KM1 and KM2 are the coils for the motor contacts, SB3/SB4 are the FWD/REV buttons, SB1 is the EM stop and SB2 is the stop button,FU1 and FU2 are fuses and the quartered circle is the lamp, connect your numbered wires upto the various listed parts.

Martin P

Ok, but i dont have a wire labeled 1 to go to my EM stop button. I have a 4 wire with three terminals starting at the light and then another singe 4 wire.

Sorry to be so thick! i just cant get my head around it.

do you have a wire from the light and a wire from the fuse, if yes put these into one side of the EM stop or seek an electrician that can do it for you.

Martin P

Hi Stuart,
Looking at the diagram that you have labelled "that diagram in in the back of the mill" (Which must be the correct one as the other does not support motor reversal.) I think you should have five wires (And possibly an earth) from where ever the transformer, fuse and the two contactors are located. can you confirm if this is correct and if so how are they labelled ? Also do you have a multimeter ? Even I would always make a note or take a photograph of connections before removing them to save the effort of tracing the wiring. I agree with Martin's comment that you see help from someone with some electrical knowledge. Ii is very much easier to sort things like this out when you have access to the machine. This is another case where a profile might help solve the problem quickly.

Les.

Edited By Les Jones 1 on 02/07/2014 08:08:38

I have just read through the thread again and the statement "Twist emergency stop to release and engage power so the light is on" would suggest that the mill is not wired in quite the same way as the second diagram suggests. It suggests that the top wire from the indicator lamp connects after the emergency stop button. This means that it may be connected to point 2, 3, or 4 rather than point 1 as shown in the diagram. If connected as the diagram it would remain on even when the emergency stop button was pressed in.

Les.

Hello Stuart,

I know this is a long shot,But I noticed you have a Warco Major MD30B, Which is the same model I have and was just wondering if you could tell me how to tram the head? The only manual I could find was for a different model of Major which has two bolts to undo, Mine as far as I can see only has one large nut with a large chrome handle that you can undo to pivot the head or crank the handle to raise and lower on the rack and pinion. How does anyone know how these mills work? As I can't find any thing on you tube that specifically says what each handle, Bolt , etc does and the manuals are next to useless. Perhaps you could tell me a book that covers the use of this type of Round Column Mill.

I think tramming is only possible using shims under the column base plate.

regards

Thank you.

This is what I thought until a you tube video by multiple people kept saying just undo a couple of bolts and tap lightly with mallet. to set it up and then found when Warco sent a PDF of thier current major it was different too. But at the end of the day tramming for this model is basically stuffing a packing piece to which ever side levels the head measurement on a DTI.

Is there a way to measure for being dead centre of the table I.E so it doesn't cut an uneven depth as well as the height?

Thats shown in the Utube link i put in your first thread.