Hardinge HC rebuild

[northumbrian]

I am inclined to agree with you, regards the age of the machine... BUT

There are too many "hang on a minute" moments, firstly they're is no ratchet for the turret I have taken plenty of pics and I will upload them as soon as they transferred from the camera.
The two bearings for the turret are ball races, as per later versions if I recall correctly, but the friction surface upon which it rotates, looks to me like bakelite

The Brake is as you say, solenoid actuated lever with a cork, and it looks like both solenoid & cork are buggered.

The powerfeed is I believe just the motor, I have had a look in the control box and everything in there looks OK, biggest pot I have ever seen, didn't know they made that big

Anyway piccies coming

[BillTodd]

I thought all Hardinge turrets were self indexing, these were made for fast production (I could be wrong) so perhaps there are parts missing???

[edit - having seen your pictures] Oh yes, that looks like it just has a ball-bearing detent

The powerfeed is I believe just the motor, I have had a look in the control box and everything in there looks OK, biggest pot I have ever seen, didn't know they made that big

You probably want to hope that it's not the motor :( I doubt they are available from Hardinge for less than an arm & leg and second hand ones from HLV's are almost as rare as originals. Peter Coleman (Yahoo Hardinge group etc.) had to replace his with a three-phase motor (I don't think it was such a huge success)

The 'pot' is a variable transformer or 'variac' - it varies the voltage (rectified to DC) to the armature .

it looks like both solenoid & cork are buggered.

Check the solenoid continuity (it may be just a mechanical problem - It has happened to my HLV-H )