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  1. #1
    Join Date
    Feb 2020
    Location
    Australia
    Age
    62
    Posts
    2

    Default Sheraton Lathe Type A

    Hi All.

    New member. I just joined today after buying a Sheraton Type A Lathe.

    Seems to work great... Very smooth and all the gears and cogs look in great condition.

    Have posted a picture.

    I do know it was sold under a few different names.

    I know it needs a good clean up and will do this over the coming days.

    Interested if any members can help me with a couple of questions.

    1. Is there a manual available here from members ?

    2. How do you put into reverse ? Motor only seams to go the 1 way. Sure the manual would help, as it would for all the gear settings and other stuff.

    Look forward to some responses.

    Regards


    Mike
    Attached Images Attached Images

  2. #2
    Join Date
    Aug 2019
    Location
    Sydney, Australia
    Age
    52
    Posts
    92

    Default

    Hi Mike. Welcome to the club!


    I have a Hercus 9" lathe which is similar to this. The Boxford and Myford lathes are also similar they are all copies of the American Southbend lathe. See Sheraton Lathe - South Bend Copy & Conquest


    1. Not sure manuals exist, but the "Textbook of Turning" by Hercus is a reasonable starting point.


    2. No reverse, because all these lathes use a screw thread to hold the chuck/faceplate on the spindle.
    If you reverse the rotation, the chuck unscrews and falls off!
    It is possible to use collets inside the spindle instead of a chuck, and wire the motor for reverse,
    but not many people ever need to do that.
    Disengaging the drive belts, and using your hand to turn the chuck backwards, is usually good enough.

  3. #3
    Join Date
    Feb 2020
    Location
    Australia
    Age
    62
    Posts
    2

    Default Update

    OK. As per the attached pictures.

    Many cans of degreaser, solvents, pressure cleaning, then re grease and all is well.

    It works great see attached pictures.

    2 levers however on the Left Hand side, I do not understand what they are for.

    Lever 1 (towards the rear), although it just engages 2 cogs as per picture 2, just stalls the motor totally. Is lever 2 (which is fixed by a bolt associated to the same function and what are they for ?

    Help would be appreciated.

    I have also seen clips where these units do run forwards and backwards .... Does anyone know is a different motor required ? Are there any advantages ? Apart from the before mentioned items, it runs beautifully and has a new lease on life.

    Please see pictures.

    Regards

    Mike
    Attached Images Attached Images

  4. #4
    Join Date
    Aug 2019
    Location
    Sydney, Australia
    Age
    52
    Posts
    92

    Default

    Lever 1 is called the "back gear lever" and has to be used with "the bull gear lock-pin" un-locked.
    If you look in the headstock, on the chuck side, there is a pin poking through the large gear.
    (you might need to turn the chuck or drive belt around by hand to see it)

    Lever 2 is for controlling the power feed; for cutting automatically, or for machining threads.
    It rotates the long feed screw under/behind the carriage, and has 3 positions for cutting left & right.


    See pages 7 & 8 – "The Headstock" – in the "Text Book of Turning"


    Note: Never use the levers when the motor is running. It is bad for the gears.
    Always hand-rotate the spindle while nudging either lever into position.

    Note 2: As you noticed, the spindle locks if you use lever 1 without pulling that little pin.
    That is handy for mounting/unmounting the chuck, but only gently. No hammering

    Note 3: Grease? These things are meant to use oil - especially the external gears.
    If you look at picture 3, you will see little oil holes in those tumbler gears.
    That have felts in them that slowly lubricate the shafts those gears sit on.
    (and these are other places that just leak oil onto the surfaces)
    Oil drips and sprays everywhere, but that is how these old lathes work
    Last edited by nigelpearson; 16th Feb 2020 at 04:37 AM. Reason: "manual" ref, oil not grease

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