Instructions On Replacing Gears In Garage Door Opener

Garage door opener won t open all the way fix.

Instructions on replacing gears in garage door opener.

Use a step ladder to access the garage door opener s power cord and motor unit. Https amzn to 2uwvnkj i m working on a chain drive opener. Lower the motor unit down. This was a craftsman model 139 53976srt.

Slide the outer trolley away from the inner trolley. 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. The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor. Remove the chain and cable assembly.

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. It is easier to replace the gear with the opener trolley in the up position. Pull the chain off the motor unit sprocket and out of the chain spreader. Pull the emergency release rope and then shut the garage door by hand.

Replacing a garage door opener gear is not a difficult project but does require some care and attention to detail. Although the gear is stripped it will still turn in the same direction it normally turns to open the door. I don t know what it is. Unplug the garage door opener.

I followed the instructions here and replace the main gear including shaft 41c4220a i didn t replace the worm gear. On first few moves the door opens closes fine without any noise but the noise comes out again afterwards. Do the edges appear to be worn down or shredded. If the door is closed push the wall.

Drive gear bore size. This gear kit on amazon. 1 2 drive gear outside diameter. My garage door opener 1 2 hp craftsman model 13953600 has grinding noise when door open close.

Lay the chain out on the garage floor while you complete the repair. If yours is a belt drive you need a kit like this https amzn to 2zqns. Examine the white plastic gears. Position a work table near the area under your motor unit to hold the garage door opener.

If so you will. This is a video on how to change the gear sprockets in a craftsman garage door opener. This gear is situated between the belt and the motor drive. How to replace worn gears in a garage door opener preparation.

2 3 4 drive gear number of teeth.