Adjustment
STEP 1 Adjust UP and DOWN Limits
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The limit adjustment screws are located on the left side panel of the opener chassis as shown LI MITADJUSTMENT settings regulate the points at which the door will stop when moving up or down
NOTE: Door STOPS in U P direction if anything interferes with door travel_ Door'REVERSES in DOWN direc-
tion if anything interferes with door travel (including binding or unbalanced doors).
PROCEDURE: To operate opener, press Wall Con_ trot Push Button or transmitter push button. Run the opener through a COMPLETE TRAVEL CYCLE No adjustments are needed when the door- opens and closes completely and does not reverse uninten- tionally in down direction.
The following chart outlines adjustment procedures. Run opener through a COMPLETE TRAVEL CYCLE
AFTER EACH ADJUSTMENT. NOTE: REPEATED OPERATION OFTH E OPEN ER DURING ADJUST-
MENT PROCEDURES MAY CAUSE THE MOTOR
TO OVERHEATAND SHUTOFFo SIMPLY WAtT 15 MINUTES AND TRY AGAIN° Read the chart care- fully before proceeding to Step 2, Pg 19 Use a screw- driver to make limit adjustments
ilo
Limit
Adjustment
Screws
Adjustment Label
IF DOOR DOES NOT OPEN COMPLETELY BUT OPENS AT LEAST FIVE FEET
IF DOOR DOES NOT CLOSE COMPLETELY
IF DOOR REVERSES WHEN CLOSING AND THERE IS NO INTER- FERENCE TO TRAVEL CYCLE
LIMIT ADJUSTMENT CHART
Increase UP travel by turning UP LIMIT adjustment screw in clockwise direction as shown on label One turn equals 2 inches of travel
if door doesn't open at least 5 feet, adjust OPEN FORCE as explained in Step 2, Page 19
1o ON SECTIONAL DOORS:
Lengthen the door arm (See Step 10, Page 16),
If door arm is at maximum length, increase the DOWN travel by turning the down limit adjustment screw in a counter clockwise direction as shown on label, One turn equals 2 inches of travel,
If door still will not close completely, the header bracket is positioned too high, Repeat Step 2, Page 1t
2o ON
Increase DOWN travel by turning tile down limit adjustment
screw in a counterclockwise direction as shown on label, One turn equals 2 inches of travel.,
TEST DOOR FOR BINDING
Pull emergency release handle and manually open and close the door, tf door is binding, call a door serviceman
1.IF OPENER REVERSES BEFORE DOOR CLOSES FULLY:
Adjust the CLOSE FORCE as explained in Step 2, Page 19
2,, 1FOPENER REVERSES IN FULLY CLOSED POSITION: Decrease DOWN travel Turn the down limit adjustment screw in clockwise direction. One turn equals 2 inches of travel
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