I just bought a Hardinge HC to work on as a refurbishing project with my kids.
Problem 1:
The turret seems to be stuck and not index. In this video you can see into the turret gearbox (cover removed):
Non-functioning Turret Indexing on a Super Precision Hardinge HC Chucker Lathe - YouTube
Recommendations? I'm going to look more closely at the gearbox action and then take apart the turret if need be.
Anybody have a video of their functioning gearbox?
Problem 2:
The Variable speed drive doesn't seem to adjust. The jackscrew just stays in place and does not rotate to move the nut up/down in response to turning the speed adjust controls up top. I can turn the jackscrew by hand. Video:
Non-Functioning Varispeed on Hardinge Super Precision HC Chucker Lathe - YouTube
Should I try racking the nut most (all?) of the way to the top?
Problem 1:
The turret seems to be stuck and not index. In this video you can see into the turret gearbox (cover removed):
Non-functioning Turret Indexing on a Super Precision Hardinge HC Chucker Lathe - YouTube
Recommendations? I'm going to look more closely at the gearbox action and then take apart the turret if need be.
Anybody have a video of their functioning gearbox?
Problem 2:
The Variable speed drive doesn't seem to adjust. The jackscrew just stays in place and does not rotate to move the nut up/down in response to turning the speed adjust controls up top. I can turn the jackscrew by hand. Video:
Non-Functioning Varispeed on Hardinge Super Precision HC Chucker Lathe - YouTube
Should I try racking the nut most (all?) of the way to the top?