Owner`s manual

5
Safety
Reversing Sensor
Closed Position
Cable
Pulley Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Emergency
Release
Rope & Handle
Door Bracket

Curved
Door
Arm
Header
Wall
Cable
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 17.
Slack in chain tension
is normal when
garage door is closed.
T-rail
Safety
Reversing
Sensor
Header
Wall
Access Door
Gap between floor and bottom
of door must not exceed 1/4".
Garage
Door
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
Based on your particular requirements, there are
several installation steps which might call for
materials and/or hardware not included in the carton.
• Step 1, page 13 - Look at the wall or ceiling above
the garage door. The header bracket must be
securely fastened to structural supports.
• Step 5, page 17 - Do you have a finished ceiling in
your garage? If so, a support bracket and
additional fastening hardware (not supplied) may
be required.
• Safety reversing sensor, page 21 - Depending on
garage construction, wood blocks may need to be
securely fastened to mounting locations before
sensors are installed.
• Step 10, page 22 - Alternate floor mounting of the
safety reversing sensor will require hardware that
is not provided.
• Step 11, page 25 - Generally, a one-piece door
does not require reinforcement. If your door is
lightweight, you can refer to the information
relating to sectional doors on page 24.
• Step 11, page 25 - Depending on your door's
construction, you might need additional mounting
hardware for the door bracket.
• Do you have an access door in addition to the
garage door? If not, Model 53702 Emergency Key
Release is required. See page 38.
• The gap between the bottom of the garage
door and the floor cannot exceed 1/4".
Otherwise, the safety reverse system may not
work properly. See page 30. The floor or the door
should be repaired.
ONE-PIECE Door Installation
You may find it helpful to refer back to this page
as you proceed with the installation of your
opener.
One-Piece Door without Track
Access
Door
Floor must be level
across width of doorSafety
Reversing
Sensor
Header
Bracket
Cable
Pulley Bracket
Door
Bracket
Straight
Door
Arm
Curved
Door Arm
Trolley
Chain
Emergency Release
Rope & Handle
T-rail
Garage
Door
Cable
Header
Wall
Safety
Reversing
Sensor
One-Piece Door with Track
Closed Position