Liftmaster Garage Door Trolley Jammed Into Stop Bolt

Eventually it becomes a problem with driving the door into the ground or in your case driving the trolley up onto the bolt.

Liftmaster garage door trolley jammed into stop bolt.

I decided to unbolt the chain from the trolley to allow the opener to move again. See how to get the trolley off the stop bolt or stop tab. Get shopping advice from experts friends and the community. The trolly was parked where the door would normally remain closed.

Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. When i disconnected the door it seemed to open and close by hand smoothly. Back off the uptravel limit screw 2 turns. When my craftsman garage door opens up it goes all the way up until the trolley hit the safety pin.

Recently it opened all the way until the trolley hit the bolt that stops it from going any further. Typically this is caused by a mis adjustment. The up down limit screws are on the opener body with arrows above to indicate increase. Once it topped out the opener stuck there.

Loosen the chain or belt to relieve the tension then press the door control to run the trolley to the close position. We design and engineer residential garage door openers commercial door operators and gate entry systems. The trolley can become lodged against the stop bolt tab because the door has either opened or closed too far. Do you know what i need to do to limit the movement of the door model 139 53650srt craftsman.

What you need to do is back off the uptravel limit adjustment. A problem came along after the assembly was complete and i tested the garage door opener. When i pushed the button the door began to open but it didn t stop and hit the stop bolt causing a lot of stress on the chain. I have compared with the other garage door opener i have and it stops on the way up 1 2 inch before the trolley hits the safety screw bolt.

Opener trolley is stuck against the rail stop bolt.