Record 52 1/2 Bad Half Nut?

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  • #664667
    Ryan Bailey
    Participant

    Hello All,

    I just finished up my workbench and the vise I installed just isn’t working properly. I have a newer 52 1/2 that often slips when tightening or loosening right after the QR lever is used. I disassembled, cleaned and lubricated all moving parts and tried the trigger spring in a range of positions. I’m out of ideas. The half nut does look a little worn in the center (flat spots) and on one end the final thread casting is pulled away from the assembly. I just don’t know how worn is too worn. Any info or ideas appreciated.

    Cheers!

    #664669
    Ryan Bailey
    Participant

    Photos:

    Attachments:
    #664694
    Darren
    Participant

    Mine has always done that randomly on tightening, right after using the QR in either direction.

    I’ve gotten into the habit of turning the handle anti-clockwise until the QR button pops back to the fully released position before tightening up on something.

    It has had no detrimental effect on how well the vise works.

    Also, I’m sure I’ve seen Paul doing that on his QR vise ?

    Darren.

    #664695
    Ryan Bailey
    Participant

    Thanks for the reply. Seems if I push or pull by the screw before tightening it will pop in place too. Just didn’t seem normal to me but then again I’m new to this type of vise.

    #664729
    Larry Geib
    Participant

    Get into the habit of stopping short of the work so you can take a turn or two to engage the nut. You have to line up the threads on the nut with the threads on the screw.
    Do it so you don’t put pressure he jaws til the nut is fully engaged.trying to clamp before the speed nut is fully engaged wears the threads out faster. Record’’s asymmetric threads are supposed to engage a little quicker, but you still have to turn before you apply pressure to the jaws.

    Dieter Schmidt has directions on the site for the clone they sell.

    • This reply was modified 2 years, 5 months ago by Larry Geib.
    Attachments:
    #664812
    Ryan Bailey
    Participant

    Thanks for the input, Larry. That makes sense. I’ll give that a try. Another confusing part is sometimes it pops out CW other times it’s CCW.

    #664825
    Austin Conner
    Participant

    Thank you so much Larry for the answer and Ryan for the question.

    I’ve had this problem as well and was certain I had damaged my vise somehow.

    #665051
    Benoît Van Noten
    Participant

    I do as Tenijn here above does.

    #665121
    Darren
    Participant

    Is this the behaviour you are seeing?

    https://www.dropbox.com/s/4w6ejhh6zblq6fx/IMG_0041%202.mov?dl=0

    This is what happens on my vise.

    HTH

    Darren.

    #665156
    Ryan Bailey
    Participant

    Darren,

    Yep, that’s pretty much what happens to my vise. Sometimes it’s light movement other times it’s much more pronounced.

    https://www.dropbox.com/sh/b03qn4peirf4zlj/AADh4UDt0KAtEzdYVcZO1fa8a?dl=0

    Thanks for taking the time to upload a clip. Older record vises look the best to me.

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