Instructions to Replace Drive Gear on Garage Door Opener

shftdJanuary 28, 2009

It is model 139.18847. The part is shown in the owner's manual as number 17 - shaft bearing kit. The shaft bearing kit has several pieces - bearng, washers and collar. The piece that broke is the bearing. It is (or would be if I could get it in place without breaking it) closest to the worm gear.

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You may need to file any burrs on the motor shaft. Other than that the bearing should slide on and off with ease.

    Bookmark   January 29, 2009 at 4:59PM
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OK thanks. My neigbour gave me a spare bearing. I will make sure the shaft is smooth before putting the new bearing on. Much appreciated!

    Bookmark   January 29, 2009 at 11:48PM
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