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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.
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
Safety Reversing Sensor
Slack in chain tension
is normal when
garage door is closed.
Torsion
Spring
Vertical
Centerline of
Garage Door
Safety Reversing
Gap between floor and
Sensor
bottom of door must
not exceed 1/4" (6 mm)
WARNING
Without a properly working safety reversal system,
persons (particularly small children) could be
CAUTION
SERIOUSLY INJURED or KILLED by a closing garage
door.
• The gap between the bottom of the garage door and
the floor MUST NOT exceed 1/4" (6 mm). Otherwise,
the safety reversal system may not work properly.
• The floor or the garage door MUST be repaired to
eliminate the gap.
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 11.
Extension
Spring
OR
4
Motor Unit
Access
Door
Wall-
mounted
Door
Control
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