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ADJUSTMENT SECTION: PAGES 28 - 30
Adjustment Step 1
Adjust the UP and DOWN Limits
Do not make any limit adjustments until the safeR"
reversing sensors are completely installed.
Limit adjustmem settings regulate the points at which the
door will stop when lnoving up or down.
The door will stop in the up direction if anything
interferes with door travel. The door will mvels'e in the
down direction if anything interferes with the door travel
(including binding or unbalanced doors).
To operate the opener, press the Door Control push
button. Run the opener tl_ough a colnplete 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
adjustlnents are necessary unless the reversing test l:ails
(see page 30).
Improperadjustmentofthetravellimitswillinterferewith
the properoperationofthe safetyreversesystem. The
doormightnotreverseproper/ywhenrequiredandcou/d
serious/yinjureor ki//someoneunderit. Testthe safety
reversesystemmonthly,and followingall adjustmentsto
thetravellimits.Seepage30.
I I
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Right Side Panel
I
O O O O O
_s _ =s
_imit
ent
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Adjustlnent 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 n3' again.
Read the procedures carefully before proceeding to
Adjustlnent Step 2. Use a screwdriver to lnake limit
adjustments.
LIMIT ADJUSTMENT
LABEL
I_h_ Adjust uP Travel
Adjust DOWN
TraveI
How and When to Adjust the Limits
If the door does not open completely but opens at least
five feet:
Increase up travel. Turn the UP limit adjustlnent screw
clockwise. One turn equals 2" of travel.
If door does not open at least 5 feet:
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" of travel.
If door still won't close completely, try lengthening the
door arm (see page 26).
If you have adjusted the door arm to the lnaximum length
and the door still will not close completely, lower the
header bracket. See Installation Step 1, pages 12 and 13.
If the opener reverses in full)" closed position:
Decrease down travel. Turn the DOWN limit adjustlnent
screw clockwise. One turn equals 2" 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, lnisaligned, or obstructed.
See Troubleshooting, page 22.
Test the door for binding: Pull the emergency release
handle. Manually open and close the door. If the door is
binding, call for garage door selwice. If the door is not
binding or unbalanced, adjust the DOWN (close) force.
See Adjustment Step 2.
28
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