One-piece door installation, One-piece door without track, One-piece door with track – Sears CRAFTSMAN 139.53640SRT User Manual
Page 5
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ONE-PIECE Door Installation
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
One-Piece Door without Track
Safety
Reversing
”Gap between floor and bottom Sensor
Safety of door must not exceed 1/4".
Reversing Sensor
Based on your particular requirements, there are
severai instaliation steps which might cali for
materiais and/or hardware not included in the carton.
• Step 1, page 13 - Look at the wail 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 with Track
Floor must be level
Safety across width of door
' Reversing
Sensor
Safety
Reversing
Sensor
Closed Position
Header -
Wall
Door
1
Cable Cable
Pulley Bracket i
Trolley
Chain
oT"/"*l '
1
'
i
e —
Header Curved
Bracket Door Arm —
T-rail
[n-^ 0000000|00005
Door Straight
7
^ Bracket Door
Arm
Emergency Release
Rope Sc Handle
You may find it helpful to refer back to this page
as you proceed with the installation of your
opener.