Hardinge HC rebuild

[BillTodd]

The serial number is on the flat around the spindle lock, and is 1020/1 if I have it correct it may be from the early half of the 1930's

I doubt it's that old. HLV's that had a similar hand-wheel speed control and bed-design date from the late 1940's to 1960 when the HLV-H was introduced. I'd guess yours is not older than the mid 1950's and maybe as late as the 1960's.

It looks in pretty good condition for an HC; they tend to have a hard life - I repaired a couple of handles on a pair of late 70's vintage HC's a week or two ago that looked far worse. (The plastic carriage handles had worn right through their spindle - How many time must the carriage been up and down to do that???)

The turret should spin to the next index as the lever is opened - There's a lever and ratchet system under the turret that is either worn, broken or, most likely, gummed-up with congealed coolant.


[edit]

I believe the brake is similar to the HLV-H i.e. a solenoid operated lever with a cork pad onto the motor.

Does the solenoid operate? (you'll hear it go clunk as the motor is powered) Or is there no braking? (replace the cork)

The power feed is the same as my one by the look of it - They're easy enough to fix, if the motor is OK. Check the motor brushes and winding resistances first.



Bill