Garage Door Chain Sprocket Broke

If yours is a belt drive you need a kit like this https amzn to 2zqns.

Garage door chain sprocket broke. Liftmaster 41a3261 1 chain drive dual gear sprocket assembly. The front sprocket is at the end of the opener rail closest to the garage door opening. This gear kit on amazon. Chain and links in steel nickle and stainless steel.

Long lengths up to 100 continuous lengths. Pull the chain toward the garage door and hold it in position. Press down on the chain with your finger. Thread the nut s facing the door clockwise until it meets the bracket then release the chain.

A new front sprocket costs about 150 200 include the labor to install it. Days from east coast to the foothills of the west coast. Liftmaster 41a4837 1 worm gear and retainer. Many uses can be used for parallel spring assemblies connecting side mount garage door openers as a garage door jackshaft sprocket and attaching chain hoists.

A broken garage door chain will immediately impact your garage door s operation and render its automatic motorized capability effectively useless. Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor. 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. Slide the outer trolley away from the inner trolley. Eventually this will cause the sprocket to snap off. 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.

When the bushings collapse on the top plate the chain or belt becomes loose causing more friction on the gear sprocket. Liftmaster 41a5585 gear and sprocket assembly. Immediate troubleshooting is required and a new garage door chain will need to be installed in place of the old one. You just don t realize how much you.

This gives the appearance of a broken chain or belt. One of the most common repairs on a liftmaster garage door opener is a broken gear sprocket. Https amzn to 2uwvnkj i m working on a chain drive opener. Five days sooner than estimated.

Another common cause for a loose chain could be the front sprocket breaking. The chain wraps around this sprocket as well as the gear and sprocket at the motor.