Garage Door Trolley Hits Stop Bolt

Your on the right track when you loosen the chain to get it off the stop bolt you are changing the limits. When my craftsman garage door opens up it goes all the way up until the trolley hit the safety pin. First visually verify that the trolley is against the stop bolt make sure the garage doorway is clear of persons or obstructions release the door from the garage door opener by pulling the emergency release handle manually bring the door to the closed position loosen the chain or belt by adjusting the outer nut 4 to 5 turns.

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Was programed and working fine before today.

Garage door trolley hits stop bolt.

Turn it to the middle position yellow line in fig. Do you know what i need to do to limit the movement of the door model 139 53650srt craftsman thanks. 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. Tried to reset opening travel distance but it keeps traveling to the stop bolt and clicking.

The key is that when the garage door opens or closes the centre limit contact moves up and down the centre white plastic drive gear screw. It is a craftsman 3 4hp model 139 53918d. After you adjust the down limit and it still comes up and hits the bolt you may have a. Stop bolt to remove the trolley from the stop bolt follow the steps below.

Trolley on garage door opener hits stop bolt and clicks 10 times. B if the trolley is in the middle of the rail and if it is at the top put it near the travel adjusting screw heads red line in fig b.