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STE P 11 Adj.,,Limits(All One-PieceDoorsOnly)
CAUTION: To prevent damage to garage doors,
the opener limits must be adjusted on ALL ONE-
PIECE DOORS,
Limit Adjustment settings regulate the points at
which door will stop when moving up or down.
Repeated operation of the opener during adjustment
may cause the motor to overheat and shut off. Simply
wait 15 minutes and continue adjustments,
Limit adjustment screws are located on the left side
panel of the openeras shown Increase limits by turn-
ing screws in direction shown on label.. Decrease
limits by turning screws in opposite direction._
Left Side
Panel Limit
Adjustment
Screws
Adjustment Label
The following illustration shows the position of the door arm and trolfeywhen the door is open (solid line drawing),
and when the door is closed (dotted line drawing),
Fully Closed
Trolley
!
1
L Closed
I Door
i
t
Door Door
Arm
Arm
Bracket
C
ADJUSTMENT PROCEDURES
PROCEDURE - OPEN DOOR ADJUSTMENT
DECREASE the U P limit by turning the UP Hmit adjust _
ment screw counterclockwise 8 complete turns
Press Wall Control push button., Trolley will travel ta
full open position..
Manually raise garage door to open position (paraF
lel to floor) and lift door arm to trolley, The arm should
touch trolley just in back of door arm connector hole
as shown in solid line drawing if the arm does not
extend far enough, make further DECREASED limit
adjustment,, One full turn equals 2 inches of door
travel,
PROCEDURE - CLOSED DOOR ADJUSTMENT
DECREASE the DOWN limit by turning the DOWN
limit adjustment screw clockwise 4 complete turns
Press Wall Control push button. Trolley will travel to
full closed position,
Manually close garage door and lift door arm to the
trottey, Arm should touch trolley just ahead of door
arm connector hole as shown in dotted line drawing,,
If arm is behind the connector hole, make further
DECREASED limit adjustment, One full turn equals 2
inches of door travel.
CONNECT DOOR ARM TO TROLLEY PROCEDURE: With door closed,join wedge door arm to connector hole in
trolley with the remaining clevis pin, Secure with a cotter pin. NOTE: It may be necessary to lift door slightly to
make connection.
Run the opener through a complete travel cycle ifdoor has a slight 'downward' slant infull open position, turn the
UP limit adjustment screw counterclockwise to decrease travel until door is paraiiel to floor
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