Up for sale is this 1964 Monarch 10EE tool room lathe. It is the 20″ between centers model and it has the electronic lead screw reverse function (ELSR). This was originally a module drive machine but it has been converted at some point in its life. The original 5HP General Electric DC motor and original back gear assembly is still in use and has not been removed. The previous owner has installed a Hampton Products Co. solid state DC converter in the machine. I do not know anything about this drive but it does appear this company is still in business. I am able to power this machine up and get the spindle running. The ELSR functions exactly like it is supposed to. The speed change is done with a potentiometer near the coolant on/off switch. I can not get the machine to go over 1000 RPM the way it is set up but it does move into forward and reverse with the lever just as I would expect it to do. I could not get the coolant pump contactor to engage with the switch. I have not tried to troubleshoot these two issues. The spindle sounds nice and smooth and the back gear works as it should. The back gear is louder in forward than it is in reverse which seems normal to me. All the power feeds work as expected and the gearbox shifts into all positions like expected. The half nuts operate like expected and the carriage moves fine when they are engaged. The machine is running in many of the photos. This is 230V 3 phase powered.
I have cleaned this machine up a bit and topped it off with oil but it is being sold as-is like it sits. This would make a great project for anyone who is looking to own one of these great American lathes. I have a forklift and can load this onto a truck or trailer. I could make a skid for this machine for a fee. Local pick up is preferred and payment is to be made by cash or a bank check. This machine is powered and available for test in New Berlin, WI. Machine is FOB New Berlin, WI. Thank you for looking.