How To Replace A Trolley On A Garage Door Opener

Pull down on the release cord for the carriage to disengage the carriage from the drive mechanism in the rail.

How to replace a trolley on a garage door opener. The model on the unit is 139 18060 which i can t seem to locate on searspartsdirect website strangely enough. Remove the cotter pin connecting the trolley with a pair of pliers. Next pull the emergency release toward the door. I think the part that broke is a sub component of the trolley.

The trolley on this garage door the part that travels up and down on the rain was broken. Constant rubbing of the rail beam along the side of the trolley will eventually wear away one side of the trolley. Pull the release cord that connects the garage door to the trolley. To start pull the old trolley carriage off clamping the chain to the rail.

Simply raise the door with your automatic opener and it will automatically reconnect. Lower and close the garage door by hand allowing the door arm to pull the carriage to. 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. In the beginning of the video you can hear what this sounds like.

Lots of other garage door openers starting with 189 but not my exact model. Swivel the arm down so that it is even with the side of the door. Run the garage door opener in the up position until it is well onto the rail or until it stops at the up position. Position a ladder underneath the trolley.

This will disconnect the door from the motor. When the springs can t handle the weight it puts the burden on the opener which then weighs down the trolley carriage. Close the door by hand so that the trolley is a the outer end of the rail. Run the garage door opener in the down direction until the trolley and rack come off the end of the rail.

They help to carry and balance the weight of the garage door so your garage door lifts properly.