09-11-2019, 10:23 PM
I dismantled the sine plates from the chuck so I could get to the bottom of it (literally and figuratively). Found this warning stamped into the bottom of the chuck
One of those 'doesn't seem like so much of a bargain now' moments.
I decided to forge ahead anyway. Removed the screws around the perimeter of the underside that obviously hold the sandwich together. I began to tap the base off the chuck with a brass drift; it dd not want to come apart. After a minute or so of tapping around the perimeter, I tried the on/off lever again and it moved! Worked it back and forth a bit and it came free, tested the magnet and it was switching on & off.
There's a little plug in the base of the chuck, I removed this and could see some movement of the internals but they were obvuiously caked in old cruddy lubricant. I filled the chuck with prepwash and sloshed it around a bit, worked the mechanism a bit, sloshed it around a bit more then drained it and filled it with fresh 80w90 gear oil. Put a bit of thread sealant on the plug, also on the screws that hold the sine bar onto the base of the chuck itself as a couple of these holes penetrate into the cavity. It now works like a charm. Next thing will be to mount it and dress the surface; I'll do the bottom and then the top.
One of those 'doesn't seem like so much of a bargain now' moments.
I decided to forge ahead anyway. Removed the screws around the perimeter of the underside that obviously hold the sandwich together. I began to tap the base off the chuck with a brass drift; it dd not want to come apart. After a minute or so of tapping around the perimeter, I tried the on/off lever again and it moved! Worked it back and forth a bit and it came free, tested the magnet and it was switching on & off.
There's a little plug in the base of the chuck, I removed this and could see some movement of the internals but they were obvuiously caked in old cruddy lubricant. I filled the chuck with prepwash and sloshed it around a bit, worked the mechanism a bit, sloshed it around a bit more then drained it and filled it with fresh 80w90 gear oil. Put a bit of thread sealant on the plug, also on the screws that hold the sine bar onto the base of the chuck itself as a couple of these holes penetrate into the cavity. It now works like a charm. Next thing will be to mount it and dress the surface; I'll do the bottom and then the top.
Lathe (n); a machine tool used in the production of milling machine components.
Milling Machine (n); a machine tool used in the production of lathe components.
Milling Machine (n); a machine tool used in the production of lathe components.