Use these steps to replace the drive belt in craftsman liftmaster and chamberlain garage door openers.
How to replace garage door opener belt.
Look to the end of the rail that hides the screw belt or chain to find the manual pull handle and the bracket to which it attaches.
The belt connects to the trolley and drives the trolley along the rail to raise and lower the door.
Like a chain drive the belt drive operates by moving the rubber belt.
The garage door opener belt is an important part of the workings inside the opener when the belt is not working correctly the door will slip fail to open or come crashing down.
The rubber belt is used to slide the trolley when the door is triggered to open or close the door.
Garage door openers are available with a chain drive screw drive or belt drive.
Chain drives a long chain pulls the door open and closed are the least expensive but they re loud.
Screw drives a long threaded rod drives a mechanism that opens and closes the door are priced in the mid range.
Belt drive garage openers use a rubber belt to open the garage door.
The original style of garage door opener opened and closed with a chain drive.
This is dangerous to anyone standing close or for vehicles driving under the door.
Start your garage door replacement project by removing the old one.
If you can see something that looks like a bicycle chain near the motor unit of your opener consider replacing it with a screw driver or belt drive garage door opener.