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Stanley garage door opener chain tension.
Turn the adjustment screw on the limit clockwise if the door doesn t fully close.
This is common on the stanley chain drives that utilize the tubular style track graphic below.
Turn it counterclockwise holding the other nut in your hand to prevent it from turning.
Keep in mind that the remote control will not operate the door until the beam sensor has been attached and properly aligned.
Too much tautness in the chain could lead to it breaking.
Then use the wrench to tighten this second nut clockwise until the chain is tighter but not so taut that it is completely inflexible.
Chain adjusts by moving the opener trolley guide tube or rail.
Same rule applies concerning recommended chain slack.
If your stanley garage door opener will not work ensure that it is plugged into a live 120 volt outlet.
Step 1 adjust the limit.
The second adjustment is located on the top of the opener body.
If the motor overload protector has been activated wait 10 minutes for the motor to cool down.