M300 Suds Pump with inverter

I can check it later with a meter, as the tank also needs to be repaired I may just buy a new 240v single phase setup. As it's a hobby lathe I may not even really use coolant, my old Harrison never had a working suds pump.

Now you have your motor dismantled it might just be very easy to bring out those three extra connection to convert to Delta. Look in the stator for a lump/bump like connection, and see if you can see three thin wires going to the lump/bump. This lump/bump is often opposite end to the other output wires. Should you be lucky, then part the three wires, then carefully attach three individual insulated wires, one at a time long enough to reach the terminal box. You must find a safe route within the stator for the new wires to run, they must not rub on the rotor when its revolving. and each connection must be carefully insulated. When completed, get your friendly electrician with his 500 volt DC Megger to carry out an insulation test. There was an excellent article on "HERE" some time ago about the same thing. It can be done and many have already done it, nothing complicated, just be careful. John

I have had a quick look for the star connection to see if it can be separated into 3 individual cables but at the moment I can't find it. I can only see two cores that come out the winding and go back in. We have Megger's at work, I work in the engineering department of Southampton docks.

Hi Martin over the years I have repaired many coolant tanks and I found a good degrease, poke out any holes and then give it a coating of resin filler plastic metal making sure that holes are proud on the outside and repaint. Then take the pump if it is viable, to the local motor repair shop as they are not expensive and more knowledgeable than me.

David