Garage Door Broken Sprocket

Tighten the bolts on.

Garage door broken sprocket.

Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. This gear kit on amazon. Garage door installation and replacement costs may vary according to style and size. Drill through the sprocket and shaft and install a bolt hardened bolt if needed through the shaft.

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. Https amzn to 2uwvnkj i m working on a chain drive opener. As the bushing wears down on top of the unit the teeth of the gear will slowly grind down. Simply remove those for replacement.

This video from sears partsdirect shows how to replace the gear and sprocket assembly on a chain drive garage door opener. The springs on the garage door will eventually weaken putting stress on the bushing. Can be used on tube shafts. If yours is a belt drive you need a kit like this https amzn to 2zqns.

They connect the motor to the chain or belt. The gear and sprocket assembly dri. Lay the chain on the garage floor while you complete the repair. Pull the chain off the motor unit sprocket and out of the chain spreader.

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. Sprocket is at the end of the opener rail closest to the garage door opening. 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. Around this sprocket as well as the gear and sprocket at the motor.

This sprocket is typically used on a soled keyed garage door shaft. Another common cause for a loose chain could be the front sprocket breaking. 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. Slide the outer trolley away from the inner trolley.