4
Safety Reversing Sensor
Support bracket &
fastening hardware
is required.
See page 21.
— — — — — — — —
Header Wall
FINISHED CEILING
Torsion
Spring
Extension
Spring
OR
Safety Reversing Sensor
Gap between floor
and bottom of door
must not exceed 6 mm.
Access
Door
Wall-
mounted
Door
Control
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with
glass panels, etc.). See page 25 for details.
Motor unit
Slack in chain tension
is normal when
garage door is closed
(Optional Accessory)
(Optional Accessory)
Vertical
Centerline of
Garage Door
Cable Pulley
Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Emergency
Release
Rope & Handle
Door Bracket
Garage
Door
Curved
Door
Arm
Garage
Door
Spring
Header
Wall
CLOSED POSITION
T-rail
Chain
SECTIONAL DOOR INSTALLATION
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.
• Do you have an access door in addition to the garage door? If
not, Model 1702E Outside Quick Release is 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 6
mm. Otherwise, the safety reversal system may not work
properly. See Adjustment Step 3. Floor or door should be
repaired.
SECTIONAL DOOR INSTALLATIONS
• Do you have a steel, aluminum, fiberglass or glass panel door?
If so, horizontal and vertical reinforce ment is required
(Installation Step 10).
• 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 1.2 m to the left
or right of the door center. See Installation Steps 1 and 10.
