Limit adjustment settings regulate the points at which the door will stop when moving up or down. The door will stop in the up direction if anything interferes with the door travel (including binding or unbalanced doors).

To operate the opener, press the Door Control push bar. Run the opener through a complete travel cycle.

Does the door open or close completely? Does the door stay closed and not reverse unintentionally when fully closed? If your door passes both of these tests, no limit adjustment is necessary unless the reversing test fails.

Adjustment procedures are outlined below. Run the opener through a complete travel cycle after each adjustment.

Repeated operation of the opener during adjustment procedures may cause the motor to overheat and shut off. Simply wait 15 minutes and try again.

WARNING

Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

Too much force on the garage door will interfere with proper operation of the safety reversal system. NEVER use force adjustments to compensate for a binding or sticking garage door. After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on floor. Adjust Travel Limits

If the door does not open completely, but opens at least five feet:

Increase the Up travel. Turn the UP adjustment screw clockwise. One turn equals 2" of travel. NOTE: To prevent the trolley from hitting the cover protection bolt, keep a minimum distance of 2-4" between the trolley and the bolt.

If the door does not close fully and stops short:

Increase Down travel. Turn the DOWN limit adjustment screw counterclockwise. One turn equals 2" of travel. If the door still won't close completely and the trolley bumps into the pulley bracket, try lengthening the door arm. If you have adjusted the door arm to the maximum length and the door still will not close completely, lower the header bracket. If the door reverses in fully closed position:

Decrease Down travel. Turn the DOWN limit adjustment screw clockwise. One turn equals 2" of travel. If the door reverses when closing and there is no visible interference to the travel cycle:

If the opener lights are flashing, the Safety Reversing Sensors are either not installed, misaligned, or obstructed. Test the door for binding. Pull the manual release handle. Manually open and close the door. If the door is binding, call for garage door service.

If the door is not binding or unbalanced, adjust the DOWN force. Adjust Force Controls.

Test the DOWN (close) force by following these steps:

Grasp the door bottom when the door is about halfway through DOWN (close) travel. The door should reverse. Reversal halfway through down travel does not guarantee reversal on a 1-1/2 inch obstruction. If the door is hard to hold or doesn't reverse, decrease the DOWN (close) force by turning the control counterclockwise. Make small adjustments until the door reverses normally. After each adjustment, run the opener through a complete cycle.

Test the UP (open) force by following these steps:

Grasp the door bottom when the door is about halfway through UP (open) travel. The door should stop. If the door is hard to hold or doesn't stop, decrease the UP (open) force by turning the control counterclockwise. Make small adjustments until the door stops easily and opens fully. After each adjustment, run the opener through a complete cycle.

If the door doesn't open at least 5 feet:

Increase UP (open) force by turning the control clockwise. Make small adjustments until the door opens completely. Re-adjust the UP limit if necessary. After each adjustment, run the opener through a complete travel cycle. If the door reverses during the DOWN (close) cycle and the opener lights aren't flashing:

Increase the DOWN (close) force by turning the control clockwise. Make small adjustments until the door completes a close cycle. After each adjustment, run the opener through a complete travel cycle.

NOTE: Do not increase the force beyond the minimum amount required to close the door.

After ANY adjustments are made, the Safety Reversal Test MUST be done. The door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on floor after any travel and force adjustment.

In case you are looking for a garage door installation, Contact us at  612-400-9295 for a free on-site estimate! Our experts will answer all your questions related to garage door installation.