The machine is a South Bend 9A, made in approximately 1945. It appears to have had relatively light use and had not been thoroughly cleaned in a long time. I am in the process of removing and cleaning all the 'modules', tail stock, apron, and saddle so far. This has left the ways clear for inspection.
First, there is a small section of surface rust on the tail stock flat about 4 inches from the head. This rust is slightly raised and can be felt by physical inspection. It is unlikely that the tail stock will be used in this area but I would like clean up the rust. How can this best be done? Do the chemicals that attempt to reverse oxidation work or do they just product dust? Will removing the rust leave a hole?
Second, there is black stain on various parts of the ways. They do not appear to have any measurable effect on moving parts, saddle, operation. I have cleaned the ways and the saddle and after oiling the surfaces manually operated the saddle on the ways. From an operational perspective the parts appear to be operational. However I would like to remove the black stain. Is anyone familiar with this form of stain? Is there a way to remove it?
Finally, the far end of the ways on the saddle where the cross slide operates is stained. The stain is most similar to a light varnish. The feel is very different from the near end of the ways. The near end is clean and the feel is like the other clean way surfaces. The stained far end has a smooth drag feel. The stain is not rust. What are practices to remove these build up stains? Thanks Dan
First, there is a small section of surface rust on the tail stock flat about 4 inches from the head. This rust is slightly raised and can be felt by physical inspection. It is unlikely that the tail stock will be used in this area but I would like clean up the rust. How can this best be done? Do the chemicals that attempt to reverse oxidation work or do they just product dust? Will removing the rust leave a hole?
Second, there is black stain on various parts of the ways. They do not appear to have any measurable effect on moving parts, saddle, operation. I have cleaned the ways and the saddle and after oiling the surfaces manually operated the saddle on the ways. From an operational perspective the parts appear to be operational. However I would like to remove the black stain. Is anyone familiar with this form of stain? Is there a way to remove it?
Finally, the far end of the ways on the saddle where the cross slide operates is stained. The stain is most similar to a light varnish. The feel is very different from the near end of the ways. The near end is clean and the feel is like the other clean way surfaces. The stained far end has a smooth drag feel. The stain is not rust. What are practices to remove these build up stains? Thanks Dan