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  1. #1
    Post number two it might as well be my new baby.

    Bought this Hardinge HC off ebay, it runs, but the brake and the power feed are buggered.

    It is also, absolutely filthy, which has prompted me reading the Hardinge/Feeler rebuilds on here to do the same. Pull it to pieces and rebuild it properly.
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    Last edited by northumbrian; 01-11-2012 at 11:46 AM.

  2. #2
    The turret is not an automatic indexer, you have to turn the turret by hand then lock it in place with the handle.
    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

    The machine was originally owned by Flight Refuelling Ltd, which make air to air refuelling equipment for military aircraft, I wonder which parts this machine made.
    For the last ten years it has been used by a small engineering company in Reading, for small runs of parts.

    More pics to follow

  3. 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
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    Last edited by BillTodd; 01-11-2012 at 02:39 PM.

  4. #4
    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

  5. #5
    The Turret before stripping apart.
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    As you can see no ratchet to rotate the turret

    The following pics, stripping down the turret and cleaning up the bits.
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  6. The Following User Says Thank You to northumbrian For This Useful Post:


  7. 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 )

  8. #7
    They scrub up quite nicely don't they
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  9. #8
    Looking at the turret I cannot see anywhere a ratchet system could be, it looks very basic indeed.

    Here's the Bakelite ring, I don't actually know if Bakelite is still used or not?
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  10. Looking at the turret I cannot see anywhere a ratchet system could be
    No you're right - On the one's I have seen (later models), it's very obvious.

  11. #10
    Quote Originally Posted by BillTodd View Post
    No you're right - On the one's I have seen (later models), it's very obvious.
    Exactly, the manual I downloaded does not match this machine, some bits do but most of it does not.

    The carriage and cross slide are different too. Not sure if this one has powerfeed to the cross slide or not.
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