Well, it happened again, another machine followed me home this week. I just picked up Harig Super 618. I spent a lot of time reading all I could on the machine before I went to look at it. The seller let me spend all the time I needed to inspect it. He bought it as part of group buy and had never used it. It came with rotary center/tailstock installed so suspect it was used as a cylindrical grinder or tool grinder more than a surface grinder. It is a rack & pinon, pure manual machine. Although the machine looked rough, I determined the spindle bearings and column ways to be in good shape, which would have been a deal breaker for me. Beyond the cosmetic issues there are some other issues that I'll need to deal with, the worst of which is about .030 backlash in the cross-feed leadscrew. I think I can replace that without too much trouble.
The other thing that concerned me was that a previous had installed a hand pump one-shot oiler. I suspect the original oil pump failed and this was the solution rather than replacing the original pump. I did determine the hand pump does provide adequate oil to all areas; I just hope it was used often. So, I removed the table and saddle and inspected all the ways. While they are worn as expected it does appear to be consistent along the length of travel. My plan is to clean them up with a flat stone, reinstall them temporarily and check for any taper in the longitudinal and cross travels. If this checks out ok then I'm planning to do a complete restoration.
It did not come with a wheel adapter removal tool. It is my understanding that this screws into the adapter and then uses a center screw to push on the spindle shaft to remove the adapter. Do anyone know where to get one of these or know the diameter and thread pitch so I can make one. I think it is LH thread?
Lastly, I'd like to go back with a circulating oil pump and was looking for any ideas on what type of pump I can get to do this.
Thanks in advance for any help. I've never used a surface grinder before so I'm sure I may have more questions.
Jim
The other thing that concerned me was that a previous had installed a hand pump one-shot oiler. I suspect the original oil pump failed and this was the solution rather than replacing the original pump. I did determine the hand pump does provide adequate oil to all areas; I just hope it was used often. So, I removed the table and saddle and inspected all the ways. While they are worn as expected it does appear to be consistent along the length of travel. My plan is to clean them up with a flat stone, reinstall them temporarily and check for any taper in the longitudinal and cross travels. If this checks out ok then I'm planning to do a complete restoration.
It did not come with a wheel adapter removal tool. It is my understanding that this screws into the adapter and then uses a center screw to push on the spindle shaft to remove the adapter. Do anyone know where to get one of these or know the diameter and thread pitch so I can make one. I think it is LH thread?
Lastly, I'd like to go back with a circulating oil pump and was looking for any ideas on what type of pump I can get to do this.
Thanks in advance for any help. I've never used a surface grinder before so I'm sure I may have more questions.
Jim