26
All One-Piece Doors
Assemble the door arm, Figure 4:
1.
Fasten the straight and curved door arm sections together
•
to the longest possible length (with a 2 or 3 hole overlap).
With the door closed, connect the straight door arm section
•
to the door bracket with the 5/16"x1-1/4" clevis pin.
Secure with a ring fastener.
•
Adjustment procedures, Figure 5:
2.
On one-piece doors, before connecting the door arm to the
•
trolley, the travel limits must be adjusted. Limit adjust ment
screws are located on the left side panel as shown on
page 27. Follow adjustment procedures below.
Open door adjustment: decrease UP travel limit
•
Turn the UP limit adjustment screw counter-clockwise 4
-
turns.
Press the Door Control push button. The trolley will travel
-
to the fully open position.
Manually raise the door to the open position (parallel to
-
the floor), and lift the door arm to the trolley. The arm
should touch the trolley just in back of the door arm
connector hole. Refer to the fully open trolley/door arm
positions in the illustration. If the arm does not extend far
enough, adjust the limit further. One full turn equals 2"
(5 cm) of trolley travel.
Closed door adjustment: decrease DOWN travel limit
•
Turn the DOWN limit adjustment screw clockwise
-
4 complete turns.
Nuts
5/16"-18
Lock
Washers
5/16"
Ring
Fastener
Straight
Arm
Bolts
5/16"-18x7/8"
Door
Bracket
Clevis Pin
5/16"x1-1/4"
Curved
Door Arm
Press the Door Control push button. The trolley will travel
-
to the fully closed position.
Manually close the door and lift the door arm to the trolley.
-
The arm should touch the trolley just ahead of the door
arm connector hole. Refer to the fully closed trolley/door
arm positions in the illustration. If the arm is behind the
connector hole, adjust the limit further. One full turn equals
2" (5 cm) of trolley travel.
Connect the door arm to the trolley:
3.
Close the door and join the curved arm to the connector
•
hole in the trolley with the remaining clevis pin. It may be
necessary to lift the door slightly to make the connection.
Secure with a ring fastener.
•
Run the opener through a complete travel cycle. If the door
•
has a slight “backward” slant in full open position as shown
in the illustration, decrease the UP limit until the door is
parallel to the floor.
NOTE:
When setting the up limit on the following page, the door
should not have a “backward” slant when fully open as illustrated
below. A slight backward slant will cause unnecessary bucking
and/or jerking operation as the door is being opened or closed
from the fully open position.
Figure 4
Door Arm
Closed
Door
Outer Trolley
Emergency Release Handle
Open Door
Door with
Backward Slant
(Incorrect)
Correct Angle
Inner Trolley
Inner Trolley
Outer Trolley
Figure 5
