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I SECTIONAL Door Installation I
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 forlightWeight garage doors
(fiberglass, steel, aluminum, door withgrass panels, etc.).
See page 24 fordetails.
Slac_ in Chain Tensmn
is Normal Whe_
Garage Door is Closed
FINISHED CEIUNG
Supao_ bracket &
isrequired.
See page 17.
Header Wall
ExtensionSpring
Floor must be ravel
across width of dOOr
Safety Reversing Sensor
Basedon your particularrequirements, there are
severalinstallationsteps whichmightcall Ior
materials and/or hardwarenot includedin thecarton.
• Step 1, page 12 - Lookat the wall or ceilingabove
the garage door.The header bracket mustbe
securelyfastened to structuralsupports.
• Step 5, page 17 - Do you have a finished ceilingin
yourgarage? If so, a supportbracket and
additional fastening hardwaremay be required.
• Safety reversingsensor,page 21 - Depending
upon garage construction,wood blocksmay need
to be fastened to mountinglocationsbefore
sensorsare 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? It so, horizontal
and vedicel reinforcement is required.
• Look at the garage door where it meets the lloor.
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.
Closed Position
Cable Pulley].,_ I L
BH_ea(_d: Bc:b_ e 3"rolley Rail Assembly
........
o _ Emergency
-- Release
Rope & Handle
s
Curved
Door _:_"_
Heade_ Arm
Wall Door Bracket
Garage
• 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. ff your door has
extension spdngs, 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.
• It your door is more than 7 feet high, see the longer
rails available on page 38.
You may find it helpful to refer back to this page as you proceed with the installation of your opener.