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    Balancing Torsion Springs

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    lothian

    Posts : 2
    Join date : 2018-03-26

    Balancing Torsion Springs

    Post  lothian on Mon Mar 26, 2018 9:44 pm

    Q: What is the correct procedure to balance torsion springs AND counter-balance the weight of the door.

    I'm spending waaaay too much time winding, unwinding, winding, unwinding the torsion springs on my 425lb 16' x 7' garage door. I can't keep the torque in balance between the springs.

    I followed the demonstrations in various YouTube videos exactly: I tighten the set screws after I've cranked the springs to the set number of turns, then release the locking-pliers that keep the shaft from turning. But each time, the left-side of the door lifts up and jambs the bottom-right roller in its track. This happens every... single... time.

    My intuition tells me I'm over-winding the springs. Fine. I unwind both springs then wind and tighten in 5 turn increments. Excruciating. When I approach the "set number of turns", I stop and check the weight of the door. It's still to heavy, so I add two more turns and check again. Still too heavy. So I add two more turns and... sproing! ...the left-side of the door lifts up and jambs the bottom-right roller in its track. Interestingly, backing off the springs from the "set number of turns" does nothing to lower the left side of the door. I have to completely release all tension on both springs, then stand on the left-side door rib to bottom out the garage door.

    What am I doing wrong?


    Last edited by lothian on Wed Mar 28, 2018 9:36 am; edited 4 times in total

    lothian

    Posts : 2
    Join date : 2018-03-26

    Re: Balancing Torsion Springs

    Post  lothian on Wed Mar 28, 2018 9:34 am

    Healed!

    I figured it out!
    There was absolutely nothing wrong with the procedure or the products. The problem was due a tool failure: my locking-pliers were worn out!

    The procedure for winding torsion springs requires securing the shaft with a pair of locking-pliers. Turns out, my locking-pliers (that I always clamped the pliers on the left-side of the shaft) would slip on the shaft after I finished winding one spring and moved to the other. D'oh!

    I purchased two shiny new 10" Vice-Grip RW pliers and chomped both on to each end of the shaft. I wound the torsion springs to the specific number of turns and released the clamps--and the door works flawlessly. 

    The law of parsimony strikes again! Sometimes you gotta step back from a problem to see how simple its cause.
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    JSGarageDoor

    Posts : 7
    Join date : 2018-04-07
    Location : Minnesota

    Re: Balancing Torsion Springs

    Post  JSGarageDoor on Sat Apr 07, 2018 5:38 am

    What size springs did you put on the door?

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    Re: Balancing Torsion Springs

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