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Planning
Identify the type and height of your garage door. Survey your
garage area to see if any of the conditions below apply to your
installation. Additional materials may be required. You may find it
helpful to refer back to this page and the accompanying
illustrations as you proceed with the installation of your opener.
Depending on your requirements, there are several installation
steps which may call for materials or hardware not included in
the carton.
• Installation Step 1 - Look at the wall or ceiling above the
garage door. The header bracket must be securely fastened to
structural supports.
• Installation Step 5 - Do you have a finished ceiling in your
garage? If so, a support bracket and additional fastening
hardware may be required.
• Installation Step 12- Dependingupon garage construction,
extension brackets or wood blocks may be needed to install
sensors.
• Installation Step 12 - Alternate floor mounting of the safety
reversing sensor will require hardware not provided.
Doyou have an access door in addition to the garage door? If
not, Model 139.53702 Emergency Key Releaseis required. See
Accessories page.
Look at the garage door where it meets the floor. Any gap
between the floor and the bottom of the door must not exceed
1/4" (6 mm). Otherwise, the safety reversal system may not
work properly. See Adjustment Step 2. Floor or door should be
repaired.
SECTIONALDOORINSTALLATION
• Doyou have a steel, aluminum, fiberglass or glass panel door?
If so, horizontal and vertical reinforcement is required
(Installation Step 8).
• The opener should be installed above the center of the door.
If there is a torsion spring or center bearing plate in the way
of the header bracket, it may be installed within 4 feet (1.22 m)
to the left or right of the door center. See Installation Steps 1
and 8.
• If your door is more than 7 feet (2.13 m) high, see rail
extension kits listed on Accessories page.
SECTIONAL DOOR INSTALLATION
Horizontal and vertical reinforcement is
needed for lightweight garage doors
(fiberglass, steel, aluminum, door with
glass panels, etc.). See page 18 for details.
Header Wall
Rail
Extension Spring
OR
Torsion Spring
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 16.
Wall- mounted
Door Control
Gap between floor
and bottom of door
must not exceed 1/4" (6 mm).
Safety
Reversing
Sensor
AccessDoor
0
Header
CLOSED POSITION
Bracket
Trolley
Stop Bolt
Trolley
Curved
Header
Door
Wall
Arm
Garage
Door
Bracket
Belt
Emergency Release
Rope & Handle
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