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Thread: Have you checked your sheaves lately?

  1. #1
    Join Date
    Aug 2006
    Location
    Maine
    Posts
    382

    Have you checked your sheaves lately?

    For the last year or so one of our garage doors has been hard to operate. Lifting or lowering was getting more and more difficult. Replaced the 30 year old Craftsman opener. Nope. Cleaned and lubricated all of the little rollers on the door sections. Nope. Took off all the trim and refastened making sure there was adequate clearance. Nope.

    This morning I happened to look at the cable and spring assembly. On my doors the cable is attached at the bottom of the door, runs up to a sheave at the top of the door frame and then alongside the rail to the spring. The sheaves are original installation 39 years ago. Each sheave is 3 inches in diameter with a center surrounded by ball bearings - so the sheave can spin or rotate as the door is raised or lowered. The bearing race had rusted away and the shaft was frozen solid. So sheave not spin, so cable has to be dragged across surface, so door hard to raise or lower!

    Never in my wildest dreams would I have thought to check this. Now run out and check your sheaves for free rotation before you forget!
    - - - - - - - - - - - - -
    Jim Mackell
    Arundel, ME

  2. #2
    Join Date
    Aug 2007
    Location
    Dickinson, Texas
    Posts
    7,655
    Blog Entries
    1
    Thanks for sharing this. I am going out to check the tracks on my door.''

    OBTW, it is an overcast drizzling cold day in Galveston County Texas.

  3. #3
    Join Date
    Feb 2003
    Location
    McKean, PA
    Posts
    15,648
    Blog Entries
    1
    Good post, My daughter recently had her garage door almost fall on her car when some of the hinges came loose. The screws had loosened over time an several were missing. It could have been quite costly if it had hit the car.

    I've suggested that they periodically check all the screws and lubricate the pulleys and rollers.

    I also reminded them that when things start making noises that they probably are letting you know they need some minor maintenance before a major repair becomes necessary.
    Last edited by Lee Schierer; 01-02-2019 at 5:29 PM.
    Lee Schierer
    USNA '71
    Go Navy!

    My advice, comments and suggestions are free, but it costs money to run the site. If you found something of value here please give a little something back by becoming a contributor! Please Contribute

  4. #4
    Join Date
    Dec 2005
    Location
    West Lafayette, IN
    Posts
    6,530
    Those noises that things make, on garage doors, machinery cars, etc, is how it talks to say it needs attention. Too many people, including my wife, just turn up the volume on the radio.

  5. #5
    Join Date
    Sep 2009
    Location
    Medina Ohio
    Posts
    4,534
    Just had to go out and adjust the springs on my shop door. I don't have sheaves as I have torsion springs and I was a garage door installer in the 70's

  6. #6
    Join Date
    Sep 2010
    Location
    Livonia, Michigan
    Posts
    780
    Good you found the problem before something broke and dropped the door.

    I've got the springs over the door, the guy that replaced them recommended spraying them with oil so the coils would slide smoothly. It did make opening and closing the door quieter.

    -Tom

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