0ne4^ece ooor installation, One-pieos door without track, One-piece door with track – Craftsman 139.53975SRT User Manual
Page 5: Closed position
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0NE4^ECE Ooor Installation
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
One-Pieos Door without Track
FINtSHED CEILING
Support bracket
& fastening
hardware is required.
Seepage 17.
Reversing
lap between floor and boHom Sensor
Safety of door must not exceed 1/4".
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 he
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 or extension
brackets (see Accessories page 38) may be
needed to fasten sensors to mounting locations.
• Step 10, page 22 - 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
Trolley Stop Bolt
Cable
Chain
№qtT
^ Header
Curved
To n-n—j
Bracket
Door Arm
booooop Qoodj
Door
Bracket
Straight
Door Arm
• Garage Door
Rail
Emergency
Release
— Bope&
Handle
You may find it helpful to refer back to this page
as you proceed with the installation of your
opener.