Holbrook C10 #10411 - Page 4
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  1. #61
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    Quote Originally Posted by rustytool View Post
    Cleaning up the steady and follower rests I noticed that one of the bolts on the follower was modified from an off the shelf bolt and that the thread is 3/8-20.
    As are the threaded holes in the saddle that the follower bolts to.
    I want to get a tap to clean out those threaded holes. Am I correct to assume that what I need is a 55 degree BSF 3/8-20 tap and not 60 degree imperial one ?Attachment 270193
    If it's 3/8 x 20 I'd say it's ''almost certainly'' std 3/8 BSF ........to the point that I'd put money on it (but not much cos I'm a tightwad )

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  3. #62
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    Got the oil for gearbox and headstock changed.
    Chucked up a piece of cold rolled and just turned a diameter to see how she runs.
    The spindle is so smooth. All the controls are just where you want them making it a very user friendly lathe.
    It felt like I've been using the lathe for years instead of minutes.
    dscn0281.jpgdscn0282.jpgdscn0283.jpgdscn0284.jpg

  4. #63
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    There is nothing better!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    Enjoy

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  6. #64
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    The manual explains adjusting the plain spindle bearings but not the tapered roller bearings in the high speed model.
    Anyone ever adjust these ?
    The front end of the headstock gets a little warm but I'm not sure if that's normal or if I need to adjust the bearings.
    The is an access cover on the back of the front end headstock that says "remove to adjust bearings".

  7. #65
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    Quote Originally Posted by lucky7 View Post
    Have used a few DS&G's and like them very much (altho would it be too much trouble for an Englishman to make a lathe for someone over 5'2" tall?) and have seen a few Holbrooks, including this one when it lived on the lower mainland. Have never used a Holbrook though. Not sure I understand why the C10 or C13 get so much adoration. Kindly explain?

    L7
    A few minutes at the controls and you will understand and be converted. I have never used a lathe that I like more than my C13. It must have been designed by an accomplished lathe hand, there is nothing stupid about it, all the controls are right where you want them. They move so smoothly and freely there is no comparison. It is as accurate as you could ever want, turn to a number on the cross feed dial and part after part will be dead on size. I could go on but I won't.

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  9. #66
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    But do you know the procedure for adjusting the roller spindle bearings ?

  10. #67
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    Quote Originally Posted by rustytool View Post
    But do you know the procedure for adjusting the roller spindle bearings ?
    How did they get they get too tight? Are they too tight? Have you checked radial and end float on the spindle? Are they getting oil? How long does it take to get warm? What is the actual temperature of warm? I would want answers before monkeying around with some more than likely irreplaceable or at great cost bearings.

  11. #68
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    I chucked a 30" long bar and put a .001 indicator on the spindle nose. Pulling as hard as my skinny little arms could I got about .0005 radial play.
    End play was the same.
    Stone cold with one of those infrared laser heat guns the headstock was 74 degrees.
    Running at 975rpm it got up to 95 degrees after 15 minutes. After 20 minutes it was still 95 degrees.
    I'm going to take your advice and call that good.

  12. #69
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    Quote Originally Posted by rustytool View Post
    I chucked a 30" long bar and put a .001 indicator on the spindle nose. Pulling as hard as my skinny little arms could I got about .0005 radial play.
    End play was the same.
    Stone cold with one of those infrared laser heat guns the headstock was 74 degrees.
    Running at 975rpm it got up to 95 degrees after 15 minutes. After 20 minutes it was still 95 degrees.
    I'm going to take your advice and call that good.
    Treat that baby like a sore dick......dont fu*k with it!

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  14. #70
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    Unless you absolutely have to adjust the bearings, leave well alone, they are apparently a pain to get just right!

  15. #71
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    IMO post's 69 & 70 are very very sound advice.

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  17. #72
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    Quote Originally Posted by Limy Sami View Post
    IMO post's 69 & 70 are very very sound advice.
    Ironic that, post 69!!!!!!

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  19. #73
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    I must be getting old. Took awhile to understand post #72.

    L7

    Love the pics of this lathe.

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