Reattaching emergency disconnect arm to door operator

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Old 09-06-20, 12:51 PM
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Question Reattaching emergency disconnect arm to door operator

I had to disconnect the door from the opener by pulling the emergency release handle when we lost electricity (so I could open and close the door).

I am now trying to reconnect the door arm to the trolley. When I lift the free end of the door arm up to the trolley they do not meet. The trolley is too close to the door and I'm not able to connect the two pieces--the trolley needs to move about 1.5" for them to line up. I am not able to stop the door at the precise spot to make the connection.

I have a Chamberlain LIftMaster Model T.

Any recommendations so I can reconnect the door arm to the trolley?

Thanks
 
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Old 09-06-20, 01:00 PM
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Push the "open" button. Allow the trolley to move a foot or two and then stop it.
Now open the garage door to match the release mechanism.

Many time the opener is set to close to hard which makes it hard to reconnect.
 
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Old 09-06-20, 08:50 PM
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Thank you for the advice.

Does it hurt the door/opener when it is set to close too hard?
 
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Old 09-06-20, 09:05 PM
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Yes.... it can be bad. Watch the door from the inside when it goes down.

When the door hits the floor.... does the trolley keep going ?
That extra inch or two can put a lot of stress on the trolley and the linkage.... as you've seen.
You may need to reset the down limit.
 
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