AndyA
Plastic
- Joined
- Feb 9, 2009
- Location
- Near Dallas, TX
I've recently bought a 10EE. It's a 1969, SN 49902. This would have originally been a modular drive, but sometime in its past it got converted to a 3ph scr drive.
The seller claims it was pulled from a working setup (yeah, you know how that goes). I did a look-over the electricals and didn't see any obvious problems. So I applied 3ph (the blower comes on). I hit the "on" button on the right side cntl panel (relays click). I move the spindle control to run.... nothing happens and the "flt trip" light illuminates on the drive. So.... now I'm going to start looking a little deeper.
It looks like it has the original motor (at least it's a motor with the integral gearbox). I haven't stuck my head in there far enough to read the nameplate. The cover on the wiring box on top of the motor is loose, and there are new looking wirenuts. So somebody's been in there jacking around.
Can somebody point me to information about the motor wiring? What resistance should I expect on what wirings? Any other things to look for to indicate problems with the motor? The motor spins freely via moving the belts.
This is a 4k spindle with ELSR. Inch only. The ways look to be in reasonably good condition. Putting a mag base on the carriage and a dial test indicator on the front face of the vee only shows 0.0005" over the carriage movement range. I'm not sure how accurate of a check this is, but at least the needle isn't waggling all over the place. The tailstock is operates smoothly. It also has a taper attachment.
Things I need to fix:
The drive!!!!
The taper attachment is missing the micrometer knob/shaft/screw, the magnifier is broken, and it's missing the bed clamp.
Mr. Torque sheared off the shaft on the speed potentiometer. The bevel gear and the top of the shaft are missing. There may be enough shaft remaining for me fit a new bevel gear, or I may be needing a new potentiometer.
The spindle control lever on the carriage is worn. I don't know if this is in the carriage or in the switch at the ELSR end.
It needs a good cleaning all around. I need to go into the head and clean the oil tubes. I took a quick peek in there and it looks clean without obvious problems. I can turn the spindle by hand and go through all the gears without problems. The lower gearbox shifts between backgears and direct (when manually bypassing the lockout). All sight glasses have oil. The "quick change" gearbox appears to be overfilled. I'm not sure if that indicates a problem with leakage from the spindle. The compound, cross slide, carriage, and apron could all use a disassemble and through cleaning.
I haven't found any information on this drive. I'm hoping someone here is familiar with it. I can't even seem to find a manufacturer.
This board is under the headstock where the module would have been. There are jumpers for 240/480. These were already set for 240volt. This board appears to be control only.
Flip up the first board and this is underneath. This board appears to be the power. On the right side there are three incoming leads labeled "L1","L2","L3". These are each fused. The silkscreen mentions "SCR" and it appears these are on the backside of the board and mounted to a large aluminum heatsink on the other side. I'm guessing the red lumps are current measuring transformers.
The frontside-right cabinet.
This is my first 10EE. I'm upgrading from a South Bend 9". Things didn't just plug-and-play, but I wasn't really expecting them to. I bought the machine under the assumption the drive wasn't going to work. I'm currently into it for $850. I'll probably have 4 or 5 times that much in it after buying chucks and tooling. It came with no tooling. Hopefully it will turn out to be as good a lathe as everyone says it is.
The seller claims it was pulled from a working setup (yeah, you know how that goes). I did a look-over the electricals and didn't see any obvious problems. So I applied 3ph (the blower comes on). I hit the "on" button on the right side cntl panel (relays click). I move the spindle control to run.... nothing happens and the "flt trip" light illuminates on the drive. So.... now I'm going to start looking a little deeper.
It looks like it has the original motor (at least it's a motor with the integral gearbox). I haven't stuck my head in there far enough to read the nameplate. The cover on the wiring box on top of the motor is loose, and there are new looking wirenuts. So somebody's been in there jacking around.
Can somebody point me to information about the motor wiring? What resistance should I expect on what wirings? Any other things to look for to indicate problems with the motor? The motor spins freely via moving the belts.
This is a 4k spindle with ELSR. Inch only. The ways look to be in reasonably good condition. Putting a mag base on the carriage and a dial test indicator on the front face of the vee only shows 0.0005" over the carriage movement range. I'm not sure how accurate of a check this is, but at least the needle isn't waggling all over the place. The tailstock is operates smoothly. It also has a taper attachment.
Things I need to fix:
The drive!!!!
The taper attachment is missing the micrometer knob/shaft/screw, the magnifier is broken, and it's missing the bed clamp.
Mr. Torque sheared off the shaft on the speed potentiometer. The bevel gear and the top of the shaft are missing. There may be enough shaft remaining for me fit a new bevel gear, or I may be needing a new potentiometer.
The spindle control lever on the carriage is worn. I don't know if this is in the carriage or in the switch at the ELSR end.
It needs a good cleaning all around. I need to go into the head and clean the oil tubes. I took a quick peek in there and it looks clean without obvious problems. I can turn the spindle by hand and go through all the gears without problems. The lower gearbox shifts between backgears and direct (when manually bypassing the lockout). All sight glasses have oil. The "quick change" gearbox appears to be overfilled. I'm not sure if that indicates a problem with leakage from the spindle. The compound, cross slide, carriage, and apron could all use a disassemble and through cleaning.
I haven't found any information on this drive. I'm hoping someone here is familiar with it. I can't even seem to find a manufacturer.
This board is under the headstock where the module would have been. There are jumpers for 240/480. These were already set for 240volt. This board appears to be control only.
Flip up the first board and this is underneath. This board appears to be the power. On the right side there are three incoming leads labeled "L1","L2","L3". These are each fused. The silkscreen mentions "SCR" and it appears these are on the backside of the board and mounted to a large aluminum heatsink on the other side. I'm guessing the red lumps are current measuring transformers.
The frontside-right cabinet.
This is my first 10EE. I'm upgrading from a South Bend 9". Things didn't just plug-and-play, but I wasn't really expecting them to. I bought the machine under the assumption the drive wasn't going to work. I'm currently into it for $850. I'll probably have 4 or 5 times that much in it after buying chucks and tooling. It came with no tooling. Hopefully it will turn out to be as good a lathe as everyone says it is.