Craftsman 139.53225SRT1 Owner's Manual page 4

Before you begin, survey your garageareato
see whether any of the conditions belowapply
to your Installation.
Horizontaland vedlsal reinfo(cement
Is needed for I_htweight garagedoors
(fiberglass,steel, aluminum, doorwith g_asspanels,etc.).
See page 24 fordeta_.
Header Wall
• Safety ReversingSensor
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 12 - Look at the wall 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 may be required.
• Safety reversing sensor, page 21 - Depending
upon garage construction, wood blocks may need
to he fastened to mounting locations before
sensors are installed.
• Step 10, page 22 - Alternate floor mounting of the
safety reversing sensor will require hardware not
provided.
• Step 11, page 24 - Do you have a steel, aluminum,
fiberglass or glass panel door?. If so, horizontal
and vertical reinforcement is required.
• Look at the garage door where it meets the floor.
It must close on the floor all the way across.
Other-wise, the safety reverse system may not
work properly. See page 30. Floor or door should
be repaired.
RNISHED CEIUNG
Supportbracket&
fasteninghardware
Is required.
See page17.
Slack in ChainTension
ls NomadWben
Garage Doorls CIo_',ed
Safety
Reversing
Sensor-
Closed Position
. Cab_ Pulley
S_ Trolley Rail Assembly
Cable
I
Emergency
Release
Repe & Handle
Arm
Door Bracket
• 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 beadng plate in the way of the header
bracket or door bracket area. If your 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.
• If your dooris more than 7 feet high, see the longer
rails available on page 38.
You may find It helpful to refer beck to thls page as you proceed with the Installation of your opener.
4