Illustration Of One-Piece Door Installation - Craftsman 139.53335SRT3 Owner's Manual

ONE-PIECE Door Installation
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
Header
Wall
Gap between floor and bottom
of door must not exceed 1/4".
Safety Reversing Sensor
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
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 provided) 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.
Access Door
Header
Wall
Safety
Reversing Sensor
must be
Reversing Sensor
Header
Wall
Garage
Door
You may find it helpful to refer back to this page as
you proceed with the installation of your opener.
5
One-Piece Door Without Track
Closed Position
Cable
Pulley Bracket
Cable
Header
Bracket
T-rail
Door Bracket
Straight Curved
Door Door
Garage
Arm
Door
One-Piece Door With Track
Floor must be level
Safety
across width of door
Closed Position
Cable
Trolley
Cable
Pulley Bracket
Header
Curved
Bracket Door Arm
Door
Straight
Bracket Door
Arm
Trolley
Emergency
Release
Rope & Handle
Arm
Access
Door
Safety
Reversing
Sensor
Chain
T-rail
Emergency
Release
Rope & Handle