Garage Door Broken Sprocket

Can be used on tube shafts.

Garage door broken sprocket.

Pull the chain off the motor unit sprocket and out of the chain spreader. Lay the chain on the garage floor while you complete the repair. If it s the gear and the sprocket that s no longer working on your garage door opener then you ll need it replaced. When used on tube shafts it is advisable to fill the tube shaft with a steel or wood dowel in the area of the sprocket and through bolt the sprocket.

A new front sprocket costs. Slide the pulley toward the garage door until the chain is stretched tight then move it toward the motor until the middle of the chain touches the upper side of the chain arm. As the bushing wears down on top of the unit the teeth of the gear will slowly grind down. Sprocket is at the end of the opener rail closest to the garage door opening.

Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Another common cause for a loose chain could be the front sprocket breaking. Slide the outer trolley away from the inner trolley. The springs on the garage door will eventually weaken putting stress on the bushing.

Garage door installation and replacement costs may vary according to style and size. They connect the motor to the chain or belt. Simply remove those for replacement. Https amzn to 2uwvnkj i m working on a chain drive opener.

The gear and sprocket assembly dri. If yours is a belt drive you need a kit like this https amzn to 2zqns. Around this sprocket as well as the gear and sprocket at the motor. This video from sears partsdirect shows how to replace the gear and sprocket assembly on a chain drive garage door opener.

If it is just a gear you are replacing you should remove it after you have unbolted assembly and replace it with a new one by going in reverse order. This home depot guide will explain the cost to install garage doors and openers or replace existing ones so you can decide which options are best for your budget. This gear kit on amazon. If it is the entire assembly you need just replace the assembly with your new one.