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  1. #1
    Join Date
    Jun 2013
    Location
    Adelaide
    Posts
    13

    Default Dawn No. 9 quick release vice

    Hey all. I recently bought a second hand dawn no 9 quick release vice.

    It is missing the quick release part of it, im guessing a rod slides into where the half nut goes and turns or something to engage / disengage it?

    Does anyone have a drawing or some photos of one they could post?

    I have tried emailing dawn with no reply, i will ring when i get a chance as i think the half nut is buggered also. Hopefully i can still get one 🤔

    Anyway thanks all, have been a long time lurker and found great info here!

    Cheers

    Dan


    Sent from my SM-G930F using Tapatalk

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  3. #2
    Join Date
    Mar 2004
    Location
    Brisbane (western suburbs)
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    77
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    12,095

    Default

    Dan, first, welcome to this section of the Forum.

    Now, to tackle your question: I'm not familiar with the Dawn QR, but the example you have may not use a cam actuated from the front to open the half-nut (someone is sure to know). Some vises used a slightly different set-up, where you simply back-off the screw a bit and the nut opens, allowing you to slide the screw back. It will only tighten under a bit of pressure, so if you are winding it back & forth with nothing to grip, it may appear that the nut isn't holding. That said, they do wear and do need replacing, on many old vises.

    A pic or two might help us to have a better guess at what any problem might be due to....

    Cheers,
    IW

  4. #3
    Join Date
    May 2016
    Location
    Blue Mountains, Australia
    Posts
    462

    Default

    I can post some photos of my Dawn 175 (7") quick release mechanism since it is off the bench currently?

    V

  5. #4
    Join Date
    Dec 2007
    Location
    Sydney
    Posts
    2,205

    Default

    Pretty sure Dawn used the back off system as described by Ian.
    I scored two of these years ago and gave one to my neighbour.
    H.
    Jimcracks for the rich and/or wealthy. (aka GKB '88)

  6. #5
    Join Date
    Jun 2013
    Location
    Adelaide
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    13

    Default

    A photo would be great thanks v. It definately has some parts missing, i will take a photo shortly and post. I rigged it up so the half nut stays engaged but it seems to pop out with too much tension.
    Cheers

    Sent from my SM-G930F using Tapatalk

  7. #6
    Join Date
    May 2016
    Location
    Blue Mountains, Australia
    Posts
    462

    Default

    Hi Dan, here's a few of my 175's QR. It has a 'No.1' lever
    IMG20170625101751-1843x1382.jpg
    Front

    IMG20170625101827-1843x1382.jpg
    Tin guard plate removed

    IMG20170625101917-1382x1843.jpg
    Lever spring

    IMG20170625101946-1843x1382.jpg
    QR 'off'

    IMG20170625101943-1843x1382.jpg
    QR 'on'

    V

  8. #7
    Join Date
    Jun 2013
    Location
    Adelaide
    Posts
    13

    Default

    Ah awesome thanks v.



    This is mine atm! Looks like i might have to rig something up

    Sent from my SM-G930F using Tapatalk

  9. #8
    Join Date
    May 2016
    Location
    Blue Mountains, Australia
    Posts
    462

    Default

    IMG20170625101817-1382x1843.jpg
    Topside spring mech

    IMG20170625101903-1382x1843.jpg
    Underside spring mech

    IMG20170625101719-1382x1843.jpg
    QR 'off'

    IMG20170625101724-1382x1843.jpg
    QR 'on'

    IMG20170625101928-1843x1382.jpg
    QR 'off' again (different angle)

    Hope those might help?

    Vaughan

  10. #9
    Join Date
    May 2016
    Location
    Blue Mountains, Australia
    Posts
    462

    Default

    Looks like it's been decommissioned! Does the vise work regularly?
    Quote Originally Posted by danimac85 View Post
    Ah awesome thanks v.



    This is mine atm! Looks like i might have to rig something up

    Sent from my SM-G930F using Tapatalk

  11. #10
    Join Date
    May 2016
    Location
    Blue Mountains, Australia
    Posts
    462

    Default

    Never gave an underside whole view so here it is
    IMG20170625103926-1843x1382.jpg

    Good luck!

  12. #11
    Join Date
    Jun 2013
    Location
    Adelaide
    Posts
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    Default

    Thats great thanks a lot! Yeah im new to these vices and bought it without knowing the quickrelease was missing! I may be able to make something up to work. Cheers

    Sent from my SM-G930F using Tapatalk

  13. #12
    Join Date
    Jun 2013
    Location
    Adelaide
    Posts
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    Default

    And no it only works if i jam the half nut up into the thread lol

    Sent from my SM-G930F using Tapatalk

  14. #13
    Join Date
    Mar 2004
    Location
    Brisbane (western suburbs)
    Age
    77
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    12,095

    Default

    Yes, well I was wrong about the mechanism - it's not the type I was thinking of, it's similar to the Record system. At least you've got the nut, that's the crucial part, but the missing bits will have to be found or manufactured if you want it to work properly. Some parts were still available from Dawn 8 or 9 years ago, but they may have run out of old stock by now...
    Cheers,
    IW

  15. #14
    Join Date
    Mar 2009
    Location
    Brisbane
    Age
    73
    Posts
    488

    Default

    I have the same model:

    DSC_1578.jpg

    You're missing the flat bar that controls the quick release. It should be a simple job to make one. Let me know if you want the dimensions.

    BTW it's a great vice, and the quick release is invaluable.

    Tony

  16. #15
    Join Date
    Jan 2008
    Location
    Central Coast NSW Australia
    Posts
    1,136

    Default

    Which makes me wonder if the bar was cannibalised to repair another vice. I'd be checking that the half nut is working. I don't think they make them any more. You can still get them in cast iron.

    TT
    Learning to make big bits of wood smaller......

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