Illustration Of One-Piece Door Installation - Craftsman 139.53491SRT 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.
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 20.
Header
Wall
One-Piece Door without Track
Access Door
Safety Reversing
Sensor
Ga _ 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 must be securely
fastened to structural supports.
• Step 6, page 20 - 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 16 - Depending on garage
construction, wood blocks may need to be securely
fastened to mounting locations before sensors are
installed.
• Step 14, page 17 - Alternate floor mounting of the
safety reversing sensor will require hardware that is not
provided.
• Step 12, 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 12, 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.
O
Closed Position
Rail
Bracket
Rail Assembly
Garage Door
Door Arm
Header
Wall
Reversing
:_if__ust be level Reversing
Sensor
_ _dih ofdoor Sensor
Reversing Sensor
Closed Position
Rail Trolley
Header _ o z.-,_..._-,,- Curved I
Bracket
_/_ Rail Assembly
-- O000000lO000
- Door °°::;j:°°°'J I EmergencyReleas el
Bracket _ralgm I--
Door I-- Rope & Handle
Door Arm
You may find it helpful to refer back to this page as
you proceed with the installation of your opener.