ADJUSTMENT

ADJUSTMENT STEP 1

ADJUST THE UP AND DOWN TRAVEL LIMITS

Limit adjustment settings regulate the points at which the door will stop when moving up or down.

To operate the opener, press the door control push bar. Run the opener through a complete travel cycle.

•Does the door open and close completely?

•Does the door stay closed and not reverse unintentionally when fully closed?

If your door passes both of these tests, no limit adjustments are necessary unless the reversing test fails (see Adjustment Step 3).

Adjustment procedures are outlined below. Read the procedures carefully before proceeding to Adjustment Step

2.Use a screwdriver to make limit adjustments. Run the opener through a complete travel cycle after each adjustment.

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

NOTE: If anything interferes with the doorís upward travel, it will stop. If anything interferes with the doorís downward travel (including binding or unbalanced doors), it will reverse.

HOW AND WHEN TO ADJUST THE LIMITS

•If the door does not open completely but opens at least 5 feet (1.5 m):

Increase up travel. Turn the UP limit adjustment screw clockwise. One turn equals 2" (5 cm) of travel.

NOTE: To prevent the trolley from hitting the cover protection bolt, keep a minimum distance of 2-4" (5-10 cm) between the trolley and the bolt.

•If door does not open at least 5 feet (1.5 m):

Adjust the UP (open) force as explained in Adjustment Step 2.

•If the door does not close completely:

Increase down travel. Turn the DOWN limit adjustment screw counterclockwise. One turn equals 2" (5 cm) of travel.

WARNING

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

•Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system.

•If one control (force or travel limits) is adjusted, the other control may also need adjustment.

•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 2 x 4 laid flat) on floor.

CAUTION

To prevent damage to vehicles, be sure fully open door provides adequate clearance.

Cover Protection Bolt

2-4" (5 cm-

10 cm)

Left Side Panel

Limit Adjustment Screws

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADJUSTMENT LABEL

Turn either limit adjustment screw the direction of the arrow to increase trolley travel, turn in the opposite direction to decrease travel

•If the opener reverses in fully closed position:

Decrease down travel. Turn the DOWN limit adjustment screw clockwise. One turn equals 2" (5 cm) of travel.

•If the door reverses when closing and there is no visible interference to travel cycle:

If the opener lights are flashing, the Safety Reversing Sensors are either not installed, misaligned, or obstructed.

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