Instructions On Replacing Gears In Garage Door Opener

Unplug the garage door opener.

Instructions on replacing gears in garage door opener.

I followed the instructions here and replace the main gear including shaft 41c4220a i didn t replace the worm gear. If your garage door opener runs when you press the button but the door won t open this is likely the part that needs replacing 41a2817 drive gear. Replacing a garage door opener gear is not a difficult project but does require some care and attention to detail. It is easier to replace the gear with the opener trolley in the up position.

Step 1 unplug opener before doing any work on the garage door opener you must unplug the opener to guard against the possibility of an accident. Examine the white plastic gears. Drive gear bore size. Lay the chain out on the garage floor while you complete the repair.

Slide the outer trolley away from the inner trolley. If yours is a belt drive you need a kit like this https amzn to 2zqns. The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor. 1 2 drive gear outside diameter.

Remove the chain and cable assembly. My garage door opener 1 2 hp craftsman model 13953600 has grinding noise when door open close. Pull the emergency release rope and then shut the garage door by hand. Garage door opener won t open all the way fix.

Lower the motor unit down. Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast. Although the gear is stripped it will still turn in the same direction it normally turns to open the door. Do the edges appear to be worn down or shredded.

On first few moves the door opens closes fine without any noise but the noise comes out again afterwards. Position a work table near the area under your motor unit to hold the garage door opener. This gear is situated between the belt and the motor drive. Pull the chain off the motor unit sprocket and out of the chain spreader.

This was a craftsman model 139 53976srt. Https amzn to 2uwvnkj i m working on a chain drive opener. If so you will. How to replace worn gears in a garage door opener preparation.

I don t know what it is. If the door is closed push the wall. Use a step ladder to access the garage door opener s power cord and motor unit. 2 3 4 drive gear number of teeth.

Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley.