What does the 'spanner 10' refer to?

Just to help anyone here is how I wired the contactors for single-phase.

Now all is left is to re-wind the tape over the coil that you initially removed and re-build the contactor. You should do all three contactors if you want to use all the stock buttons and use a 240V coolant pump too. The wiring also has to be changed. You cannot use the overload feature on the stop ...

I twisted the wire, turned it around the coil a couple of turns and scraped the insulation off it for soldering:

Now I un-wound the contactor. I didn't count the turns I removed but there must have been a thousand or more. I then reinforced the tail for soldering by making half a dozen loops and twisting them together.

I recently bought a Viceroy 280 synchro which was fitted with a 3-phase motor and pump. Since I don't have 3-phase power and didn't want to run a 3-phase converter and lose the stock buttons I decided to convert the machine to single phase. Before you start, make sure you take photos and notes of al...

Not to worry, I have it sorted now I think. Running a single-phase motor with reverse and 240V coolant pump off the standard buttons & contactors

Does anyone have a wiring schematic for the synchro? I need to double-check my installation.

Thx
Pete.

I've converted my lathe to single-phase so I have a standard Viceroy 3 phase motor for sale. It's off my 280 synchro but I'm sure it will fit most lathes of this type.

£25 & postage

Pete

I think the safest bet is to find a length of cross-slide or compound-slide screw and grind it to make a tap, then use that to produce a nut. That way we can guarantee having the right thread form. I've been on the look-out for such a thing without any luck so far.

Just to follow-up. Andy is right the 3-phase contactors won't pull-in with 240V power - but I've found a way to make them do it! I will start a new thread in the Machines section detailing the process. You can keep all the stock buttons and contactors and run a single phase motor no problem (so far)...

The handwheel is for moving the cross-slide. The knurled wheel is for zero-ing the dials. You hold the handwheel tight and turn the knurled part to line up 0 with the pointer. On the scale it should tell you the graduations, it will be either 0.001" or 0.02mm. Knowing this will help. hi pete thanks...

Thx Andy.

Hi Andy. I just won a 2HP single-phase motor last night on ebay, so I'll be using that. I have no problem running the extra wires to the motor and no problem at all mounting it. Luckily it has the 19mm shaft already which is handy so I can fit the drive pulley straight on. I'm hoping to use a capaci...

The handwheel is for moving the cross-slide. The knurled wheel is for zero-ing the dials. You hold the handwheel tight and turn the knurled part to line up 0 with the pointer.

On the scale it should tell you the graduations, it will be either 0.001" or 0.02mm. Knowing this will help.

Hi William. The truth of the matter is that I am no longer sure what the heck they have produced for a cross-slide screw. I'm still working on it. My gut feeling is that it's an imperial screw but testing with a dial suggests otherwise. First question is - is your lathe imperial or metric? Does it h...

...see above

Got it all done now thanks for the help. It was a simple slide-on fit on the shaft and held with a bolt & cap-washer as shown in the wadkin manual. The retaining bolt I found in the bottom of the machine, the pulley had slid along the shaft and spun when the key had cleared the keyway causing the sh...

Here you go William: EDIT: PLEASE DISREGARD THE PREVIOUS INFO. Basically I assumed that since the dial was marked as .100"/turn and the screw thread was .500" OD they must have used an imperial screw. TUrns out that four turns of the dial moves the cross-slide 9.98mm so now it looks like we have a s...

I'll measure the thread on my synchro this weekend for you William. I will be able to give you the pitch but I don't know much about the forms used though having th epitch is a start. When I get a motor I could try to turn you a thread.