Craftsman 53479 Owner's Manual page 6

SECTIONAL Door Installation
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with glass panets, etc.).
See page 24 for details
= Header Wail
FINISHED CEILING
Support bracket &
fastening hardware
is required
See page 20.
Safety Reversing Sensor
Dooi:_C_nter
Floor must be level
across width of door
Based on your particular requiremems, there are several
installation steps which might call for materials and/or
hardware not included in the carton.
• Step 1, page 12 Look at the wall or ceiling above the
garage door. The header bracket must be securely
fastened to structural supports.
• Safety reversing sensor, page 16 Depending upon
garage construction, wood blocks may need to be
fastened to lnounting locations before sensors are
installed.
• Step 4, page 17 Alternate floor mom_ting of the safety
reversing sensor will require hardware not provided.
• Step 6, page 20 Do you have a finished ceiling in your
garage? If so, a support bracket and additional fastening
hardware may be required.
• Step 12, page 24 Do you have a steel, aluminum,
fiberglass or glass panel door? If so, horizontal and
vertical reinforcelnent is required.
• Look at the garage door where it meets the floor. It
must close on the floor all the way across. Otherwise,
the safeD" reverse system may not work properly. See
page 30. Floor or door should be repaired.
Extension Spring
OR
Torsion Spring
Safety
Reversing
Sensor
Access Door
O
Header
Wall
Garage --
Door
Closed Position
Header
Bracket Rail Rail Assembly
Bracket
Garage _ Trotley
_Door
spr,eg/ / I
Straight //_/ I Emergency
Door _7 _ Release
__ L Rope & Handle
,! F \_ Curved
,_ I Door Door
_ Bracket Arm
• The opener can be installed within 2 feet of the left or
right of the door center if there is a torsion spring or
center bearing plate in the way of the header bracket or
door bracket area. If),our door has extension springs;
the opener must be installed in the center of the door.
See pages 12 and 24.
• Do you have an access door in addition to the garage
door? If not, Model 53702 Emergency Key Release is
required. See page 38.
You may find it helpful to refer back to this page as
you proceed with the installation of your opener.