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Planning
Identify the type and height of your garagedoor. Surveyyour
garageareato 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 pageand 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
garagedoor. 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 10 - Dependingupon garageconstruction,
extension brackets or wood blocks may be neededto install
sensors.
• Installation Step 10 - Alternate floor mounting of the safety
reversingsensor will require hardware not provided.
Doyou have an access door in addition to the garagedoor? If
not, Model 53702 Emergency Key Releaseis required. See
Accessories page.
Look at the garage door where it meets the floor. Any gap
betweenthe 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 3. Floor or door should be
repaired.
SECTIONALDOORINSTALLATIONS
• Doyou have a steel, aluminum, fiberglass or glass panel door?
If so, horizontal and vertical reinforcement is required
(Installation Step 11).
• The opener should be installed above the center of the door.
If there is atorsion 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 11.
• If your door is more than 7 feet (2.13 m) high, see rail
extension kits listed on Accessories page.
SECTIONALDOORINSTALLATION
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with
glass panels, etc.). See page 23 for details.
Header Wall
Slack in chain tension
is normal when
garage door is closed.
Extension Spring
OR
Torsion Spring
FINISHED CEILING
Support bracket &/
fastening hardware
is required.
See page 16.
M(
Wall-
mounted
Door
Control
Safety Reversing Sensor
Safety Reversing
Gap between floor Sensor
and bottom of door
must not exceed 1/4" (6 mm).
Access Door
O
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