How To Replace Garage Door Opener Trolley

Swivel the arm down so that it is even with the side of the door.

How to replace garage door opener trolley.

Close the door by hand so that the trolley is a the outer end of the rail. Simply raise the door with your automatic opener and it will automatically reconnect. Remove the cotter pin connecting the trolley with a pair of pliers. Position a ladder underneath the trolley.

To start pull the old trolley carriage off clamping the chain to the rail. Pull the release rope on the trolley and put the door all the way down. Remove the fastener ring from the straight door arm connected to the outer trolley. Remove the pin that holds the rail to the bracket on the wall above the door.

Pull the release cord that connects the garage door to the trolley. Constant rubbing of the rail beam along the side of the trolley will eventually wear away one side of the trolley. The liftmaster 41b3869 1 garage door opener belt drive trolley sold by north shore commercial door replaces the whole opener and is easy to install. Shut the garage door if it s not already closed.

The belt connects to the trolley and drives the trolley along the rail to raise and lower the door. This will allow the trolley and rack to run off the end of the track. Use these steps to replace the drive belt in craftsman liftmaster and chamberlain garage door openers. If the belt breaks or is worn replace it with the manufacturer approved replacement part.

In the beginning of the video you can hear what this sounds like. The trolley on this garage door the part that travels up and down on the rain was broken. Next pull the emergency release toward the door. Lower and close the garage door by hand allowing the door arm to pull the carriage to.

This will disconnect the door from the motor. This diy repair guide explains how to replace the drive belt on a belt driven garage door opener. There is a clip holding the pin in the bracket. Pull the emergency release rope to release the trolley from the garage door.