Garage Door Broken Sprocket

Slide the outer trolley away from the inner trolley.

Garage door broken sprocket.

Lay the chain on the garage floor while you complete the repair. Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Tighten the bolts on. Pull the chain off the motor unit sprocket and out of the chain spreader.

Another common cause for a loose chain could be the front sprocket breaking. This sprocket is typically used on a soled keyed garage door shaft. Around this sprocket as well as the gear and sprocket at the motor. If it s the gear and the sprocket that s no longer working on your garage door opener then you ll need it replaced.

Sprocket is at the end of the opener rail closest to the garage door opening. 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. Drill through the sprocket and shaft and install a bolt hardened bolt if needed through the shaft.

The springs on the garage door will eventually weaken putting stress on the bushing. They connect the motor to the chain or belt. Simply remove those for replacement. A new front sprocket costs.

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. Can be used on tube shafts. 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.

Garage door installation and replacement costs may vary according to style and size. The gear and sprocket assembly dri. 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. This gear kit on amazon.