Illush'ationof One-Piece Door Installation - Craftsman 139.53978SRT Owner's Manual

One-Piece Door without Track
Before you begin, survey your garage area to
FINISHED CEILING
see whether any of the conditions below apply support
bracket "_
to your installation.
&fastening _'_ _
h_rdware is required.
See page 17.
Header
Wall
_ _ _Trolley Stop Bolt Cable Trolley
EmergenCy
Release
Rope & Handle
leader
Reversinc
ap between floor and bottom Sensor" -----
Safety of door must not exceed 1/4".
One-Piece Door with Track
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 mustbe
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.
;afety
Reversing
.. Safety across width of door Sensor
Reversing
Sensor
Closed Position
/JJ/_ Trolley Stop Bolt Cable
Wall" _ _ Header
i_; B_cket
_BG oor Straight
Bracket Door Arm
arage Door _-
Chain
Rail
Emergency
Release
-- Rope &
Handle
You may find it helpful to refer back to this page
as you proceed with the installation of your
opener.
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