27
ALL ONE-PIECE DOORS
1. Assemble the door arm, Figure 4:
• Fasten the straight and cur
v
ed door arm sections
together to the longest possi
b
le length (with a 2
or 3 hole o
v
erlap).
• With the door closed, connect the straight door
arm section to the door
b
racket with the
5/16"x1-1/4" cle
v
is pin.
• Secure with a ring fastener.
2. Adjustment procedures, Figure 5:
• On one-piece doors,
b
efore connecting the door
arm to the trolley, the tra
v
el limits must
b
e
adjusted. Limit adjustment screws are located on
the left side panel as shown on page 28. Follow
adjustment procedures
b
elow.
• Open door adjustment: decrease UP
travel limit
- Turn the UP limit adjustment screw counter-
clockwise 5-1/2 turns.
- Press the Door Control push
b
utton. The trolley
will tra
v
el 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
b
ack 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 tra
v
el.
• Closed door adjustment: decrease DOWN
travel limit
- Turn the DOWN limit adjustment screw
clockwise 5 complete turns.
Nu
ts
5/16"-1
8
Lock
W
ashers
5/16"
Ring
Fastener
Straight
Arm
Bolts
5/16"-1
8
x7/
8
Door
Bracket
Clevis Pin
5/16"x1-1/4"
C
u
rved
Door Arm
- Press the Door Control push
b
utton. The trolley
will tra
v
el 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
b
ehind the connector
hole, adjust the limit further. One full turn equals
2" (5 cm) of trolley tra
v
el.
3. Connect the door arm to the trolley:
• Close the door and join the cur
v
ed arm to the
connector hole in the trolley with the remaining
cle
v
is pin. It may
b
e necessary to lift the door
slightly to make the connection.
• Secure with a ring fastener.
• Run the opener through a complete tra
v
el cycle. If
the door has a slight "
b
ackward" 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
Door Arm
Connector Hole
Closed
Door
O
u
ter Trolley
Emergency Release Handle
Inner Trolley
O
u
ter Trolley
Open Door
Door Arm
Correct Angle
Door
w
ith
Back
w
ard Slant (Incorrect)
Inner Trolley
Figure 5
