Jaxian
Stainless
- Joined
- Feb 24, 2013
- Location
- Santa Cruz
Hey guys, could use some advice on a problem that cropped with my 10EE the other day.
The machine is a 10EE 1959 with the WIAD. No coolant pump, no ELSR, no hydraulic pump. It is connected to 240v single phase. The machine is very original. Wires have been redone if they looked questionable but same size and grade when replaced so for all intents and purposes a completely original machine electrically. It has worked perfectly for years now and has never demonstrated any odd behavior or issues. It is in a clean temperature controlled area.
Normally I turn on the disconnect on the back of the machine to turn on the power. You can hear the fan turn on in the tube compartment end of the lathe. After a minute or so I hit the START button and it glows green and the machine is then operational. When done I hit the STOP button right below the START and the tubes all go out and the machine is off. The fan is still running until I turn off the disconnect power as I recall.
I went to use it the other day, it's been a few weeks but not very long. Turned on the disconnect, heard the fan spin up, waited a few minutes for the Time Delay tube to do it's thing and then hit the START button.
The machine just turned off. No pop, no delay like a fuse was blowing or a breaker was tripping, no smell, no sounds. Just press START and instantly quiet. I don't recall if the fan was still running after pressing. I cycled the disconnect switch on and off. I pressed the RESET button on the back of the headstock but the machine will not power up now. The green light in the START button never turns on. Also the fan which is normally always on is not running ever.
I started looking at the drawings and trying to trace where the power was stopping. It does get inside the machine. The DC cabinet on the headstock end is completely dead as far as I can tell.
There is power to the Tubes area just waving a chicken stick around to see if there is power. But the fan will not run.
If you look at the attached picture of the wire diagram I have power (120v) at B3 (yellow) at the START button. The other side of the button B1 is only showing like 15v. I expected there to be full 120v power at L2-1 (yellow) but it is only 11v on both sides of the STOP button. It looks like there should be 120v from L2 there.
From tracing the diagram it looks like the fuse at L2-2 should be at 120v (red). I can not find that fuse. I am not sure what O.L.I means. If that is a latching power circuit I would assume that it needs power there so when the START switch is pressed that circuit goes live and lets the power though, except there isn't any power.
I waved the chicken stick around both the fan wires B9 and 73, and also at the 6N060 Time Delay tube and it showed voltage at both. I check the voltage at 73,B9 with a meter to ground and only got 5v. Not surprised it can't turn the fan as the schematic show that being a 145v circuit.
So any help as to were the fuse is that in the red circle is located or ideas as to why the machine is all the sudden dead would be much appreciated. All five fuses I could find, 1 amp, 3 amp, 30 amp all seem to be good.
There was no electrical storms, no movement, no activity at all near the machine what would have caused anything that I can tell. Thanks guys.
EDIT: I have tried re-attching the picture a few different ways and sizes but it keeps auto resizing it and making it hard to read. Sorry about that.
The machine is a 10EE 1959 with the WIAD. No coolant pump, no ELSR, no hydraulic pump. It is connected to 240v single phase. The machine is very original. Wires have been redone if they looked questionable but same size and grade when replaced so for all intents and purposes a completely original machine electrically. It has worked perfectly for years now and has never demonstrated any odd behavior or issues. It is in a clean temperature controlled area.
Normally I turn on the disconnect on the back of the machine to turn on the power. You can hear the fan turn on in the tube compartment end of the lathe. After a minute or so I hit the START button and it glows green and the machine is then operational. When done I hit the STOP button right below the START and the tubes all go out and the machine is off. The fan is still running until I turn off the disconnect power as I recall.
I went to use it the other day, it's been a few weeks but not very long. Turned on the disconnect, heard the fan spin up, waited a few minutes for the Time Delay tube to do it's thing and then hit the START button.
The machine just turned off. No pop, no delay like a fuse was blowing or a breaker was tripping, no smell, no sounds. Just press START and instantly quiet. I don't recall if the fan was still running after pressing. I cycled the disconnect switch on and off. I pressed the RESET button on the back of the headstock but the machine will not power up now. The green light in the START button never turns on. Also the fan which is normally always on is not running ever.
I started looking at the drawings and trying to trace where the power was stopping. It does get inside the machine. The DC cabinet on the headstock end is completely dead as far as I can tell.
There is power to the Tubes area just waving a chicken stick around to see if there is power. But the fan will not run.
If you look at the attached picture of the wire diagram I have power (120v) at B3 (yellow) at the START button. The other side of the button B1 is only showing like 15v. I expected there to be full 120v power at L2-1 (yellow) but it is only 11v on both sides of the STOP button. It looks like there should be 120v from L2 there.
From tracing the diagram it looks like the fuse at L2-2 should be at 120v (red). I can not find that fuse. I am not sure what O.L.I means. If that is a latching power circuit I would assume that it needs power there so when the START switch is pressed that circuit goes live and lets the power though, except there isn't any power.
I waved the chicken stick around both the fan wires B9 and 73, and also at the 6N060 Time Delay tube and it showed voltage at both. I check the voltage at 73,B9 with a meter to ground and only got 5v. Not surprised it can't turn the fan as the schematic show that being a 145v circuit.
So any help as to were the fuse is that in the red circle is located or ideas as to why the machine is all the sudden dead would be much appreciated. All five fuses I could find, 1 amp, 3 amp, 30 amp all seem to be good.
There was no electrical storms, no movement, no activity at all near the machine what would have caused anything that I can tell. Thanks guys.
EDIT: I have tried re-attching the picture a few different ways and sizes but it keeps auto resizing it and making it hard to read. Sorry about that.