Garage door springs

Discussion in 'Mechanic and Repair' started by mulchmonkey2000, Aug 23, 2002.

  1. mulchmonkey2000

    mulchmonkey2000 LawnSite Member
    Messages: 42

    Does anyone know how to wind the springs used on garage doors. The cables on my fold down ramp in my enclosed trailer snapped today and i'm not sure how the springs get wound. THanks!!:)
  2. captdevo

    captdevo LawnSite Senior Member
    Messages: 932

    in the center or on the sides of the torsion bar there is a knuckle with holes in it.

    with the door closed!

    using 2 strong bars that will fit in these holes (i use 3/8" socket extentions) wind the torsion bar down, alternating holes, the direction the cable will reel out 6-8 revolutions. (depending on door weight)

    (some torsion springs even have a line of paint painted on them, when completely wound up the paint will line up across the spring.)

    leave one bar in the knuckle, levered against the roof to hold the tension.

    connect the cables to the spools and wrap them.

    attach the cables to the door and open the door slowly and remove the bar which was levered holding the tension.


    if it does not have enough tension, place bar in knuckle while door is open, close door to lever tension.

    unhook cables and add a few wraps around the spools and reconnect.


    if it has too much tension, place bar in knuckle just before door closes to lever tension.

    unhook cables and take a couple wraps off the spool.


    i've even seen some doors that have a torsion bar you wind up with a drill.

    let me know how you do.
  3. mulchmonkey2000

    mulchmonkey2000 LawnSite Member
    Messages: 42

    I just got in from putting the new cables on my trailer. Your directions work great. You never realize how heavy those doors are till you try lifting one without any spring tention. Thanks for your help, It was very useful. :D :blob3:
  4. captdevo

    captdevo LawnSite Senior Member
    Messages: 932

    no problem! glad i could help.

    yes, the spring assist is an asset!

  5. drobson

    drobson LawnSite Member
    Messages: 237

    CaptDevo, those were great instructions.. I have been through trying to wind a spring when I had no idea what I was doing and I would have benefitted from your knowledge at the time, although it was a few years ago. I have also had the pleasure of trying to lift a wooden double wide door without the help of the spring so I could get my equipment out of the garage.. I never looked at the spring the same way again.. :)
  6. Gravely_Man

    Gravely_Man LawnSite Silver Member
    Messages: 2,075

    CaptDevo is right on the money with the directions. One word of advice is to be very careful as those springs are under a lot of pressure and are quite dangerous if they cut loose.

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