- Always keep hand clear of sprocket and
chain while operating opener.
STEP9: Insert the trolley into chain connector
Insert the trolley into
chain connector
Ensure chain passes through the trolley
guides into the chain connector until you
hear a click where the chain connector is
completely seated into the trolley.
Congratulations!
Now the T-rail assembly is already finished.
But please kindly noted: After completing the installation, you
may notice some chain drop with the door fully closed. The chain
should return to the position as shown when the door is open.
Note: Too much or too little tension will cause excessive noise.
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