Garage Door Gear And Sprocket Broken

A new front sprocket costs about 150 200 include the labor to install it.

Garage door gear and sprocket broken. Follow the steps in this repair guide and video to replace the gear and sprocket assembly in craftsman chamberlain and liftmaster chain drive garage door openers. Garage door service repair. Replace a broken gear and sprocket assembly with the manufacturer approved replacement part. This is the part that connects the motor to the chain or belt.

After several years the garage door springs become weaker causing more stress on this particular part causing it to fail and wear out. At custom door sales we employ a team of knowledgeable technicians who deliver personalized assistance to your garage door repair needs in new hope maple grove and the surrounding twin cities metro areas. This was a craftsman model 139 53976srt. The chain wraps around this sprocket as well as the gear and sprocket at the motor.

This repair guide and video show how to replace a chain drive garage door opener gear and sprocket assembly. One of the most common repairs on a liftmaster garage door opener is a broken gear sprocket. 041c4220a is a complete chain drive gear and sprocket replacement kit. With over 65 years in the business we are fully equipped to repair both residential and commercial door.

Sprocket is at the end of the opener rail closest to the garage door opening. This gear set worked great and replaced a broken one in my 2002 1 2 hp chamberlain liftmaster yesterday. It wasn t listed for the same model but after looking online it seems that most garage door openers made after 1984 use the same sprocket assembly. This video from sears partsdirect shows how to replace the gear and sprocket assembly on a chain drive garage door opener.

If the gear and sprocket assembly breaks the motor runs but the door won t move. It was a perfect replacement and the garage door is working. This gear and sprocket assembly is compatible with various chain drive garage door openers. If your garage door opener s motor runs but the chain doesn t move the gear and sprocket assembly might be broken or worn.

Chain drive garage door openers have a sprocket that is attached at the top of the motor. This is a video on how to change the gear sprockets in a craftsman garage door opener. Helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the chain drive gears. Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door.