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U.S. Patent 7,418,8000
8.
ADJUSTMENTS
8.1.
Open Dwell Time: To adjust how long the door stays open before closing, use a screw driver to adjust “auto
close” on the control board. Turning clockwise will increase the time the door stays open. Turning
counterclockwise will decrease the dwell time. The dwell time can be adjusted from 0-30 seconds.
8.2.
Closing Activation Time: To adjust how long the motor continues to rotate when closing the door, use a
screwdriver to adjust “close adj” on the control board. It is recommended that you adjust this to have the
motor continue to operate for two seconds after the door is completely closed. This will ensure consistent
repeatability. The clutch of the lever arm ensures that even if the door is shut or any obstacle is encountered,
the motor will not burn itself out. The clutch tension cannot be adjusted.