Hardinge HC rebuild

[northumbrian]

I've been talking to ZMT services, the bed plate needs to be reground as it's worn in the middle, so I'll get a new solenoid and get the powerfeed motor done too while I'm at it.

n.rat, I'm interested in a swap, as the manual I have is for the later models. Can you post a pic of the front cover so I can see if it's my HC?

[n.rat]

northumbrian,

I've tried to attach a couple of photographs of the manual, but the files are too large. There is no date information in the manual, but the UK addess is given as Exeter. The photographs on page three illustrate the Early model HC, with speed control by a handwheel on the front of the cabinet. Also, the cross-slide is much smaller and simpler than the one on my machine.

I had my bed plate reground (top surface only) by Triple T engineering at Shildon. They did an excellent job at reasonable price. One consequence, however, is that I now have a bit of backlash in the carriage rack/handwheel, due to the slight lowering of the carriage relative to the bed-mounted rack. The rack is doweled to the bed casting, so it's difficult to make any adjustment to its location. Backlash is now about 30 thou, as indicated at the dial. This could be compensated by using thicker teflon on the carriage underside.

I've been talking to ZMT services, the bed plate needs to be reground as it's worn in the middle, so I'll get a new solenoid and get the powerfeed motor done too while I'm at it.

n.rat, I'm interested in a swap, as the manual I have is for the later models. Can you post a pic of the front cover so I can see if it's my HC?