I have a 1967 10ee with tubes. I've had it for 3 years now. When I first viewed it, it ran up to the 4000 rpm. mark. When I brought it home, it never ran more than 1800 rpm
. I have had to move it again to a new location, now it powers up but the fans do not come on nor will the contactors engage. I'm not an electrical engineer like a lot of people here are and I am seriously thinking of a 3hp. 3phase motor with a VFD.
Can anyone recommend the set up I would need to buy? Like which motor and what class. Which VFD and what would the rating be? remember, I'm a Machinist not an electrical engineer.
I'm a one man shop with one lathe...the 10ee. When it's down, I'm dead in the water.
..........Thanx in advance...Martin
Martin, the problem is the machine has received no maintenance for a very long time, and finally quit.
If I were to buy your machine dirt cheap because it doesn't run, I would----
Pull the drive motor, clean and check, or send it out to a pro. This is the heart of the machine, if its dragging, it will stress the drive.
Pull the module, replace all the diodes with 600v 3 amp diodes-there is info here on how to do that-I found the 600v 3amp diodes are tougher then the 1000v 1-amp diodes. Make holders "Do Not Solder them in place in the module"!
Remove the main switch contacts and clean or replace them.
Remove contacts from all relays, clean, and or replace as needed.
Check every screw terminal, and also make sure all wire ends are tight, look for any repaired wires and crimped ends for bad contact or wires out of place, what has been done before may not be right.
Repair the fan, and clean or replace the filter.
Not electrical engineer stuff there, so I bought your lathe, did those things, and now will make a good profit.
Keep this in mind Martin.
The replacement Monarch AC drive is much tougher then the off the shelf magic box drives. The Monarch drive is designed for the machine with separate heavy duty switching and other components to take on the duty of the drive you now have.
The magic box drives have tiny switches within that will not hold up to industrial use, this may not matter depending on use. The hardest function for the drive is rapid threading leaving the half nuts locked in, this is why the Monarch factory conversion would be the best choice for that reason alone.
I have gone though several of these module machines following what I printed here with good results. It is important to obtain the correct for you machine electrical print, I know of three distinct variations of these module drives, with sometimes small changes between.
A quick rehash of what I said, and then what.
Do all those things. Then you have a solid base to go from, if the machine still has some problems, they are much easier to chase down.