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INSTALLATION STEP 1
Determine the Header Bracket
Location
To prevent possible SERIOUSINJURYor DEATH:
• HeaderbracketMUSTbe RIGIDLYfastenedto structural
support on headerwall or ceiling, otherwise garagedoor
might not reversewhen required. DONOTinstall header
bracketover drywall.
• Concreteanchors MUSTbe usedif mounting headerbracket
or 2x4 into masonry.
• NEVERtry to loosen, move or adjust garagedoor, springs,
cables,pulleys, brackets, or their hardware, ALL of which
are under EXTREMEtension.
• ALWAYScalla trained door systems technician if garage
door binds, sticks, or is out of balance.An unbalanced
garagedoor might not reversewhen required.
Header Wall
Vedical Centerline
of Garage Door
2x4
OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
Structural
Supports
Installation procedures vary according to garage door
types. Follow the instructions which apply to your door.
1. Close the door and mark the inside vertical centerline of
the garage door.
2. Extend the line onto the header wall above the door.
You can fasten the header bracket within 4 feet
(1.22 m) of the left or right of the door center only if
a torsion spring or center bearing plate is in the
way; or you can attach it to the ceiling (see page 13)
when clearance is minimal. (It may be mounted on
the wall upside down if necessary, to gain
approximately 1/2" (1 cm)).
If you need to install the header bracket on a 2x4
(on wall or ceiling), use lag screws (not provided)
to securely fasten the 2x4 to structural supports as
shown here and on page 13.
3. Open your door to the highest point of travel as shown.
Draw an intersecting horizontal line on the header wall
above the high point:
• 2" (5 cm) above the high point for sectional door and
one-piece door with track.
• 8" (20 cm) above the high point for one-piece door
without track.
This height will provide travel clearance for the top edge
of the door.
NOTE: If the total number of inches exceeds the height
available in your garage, use the maximum height
possible, or refer to page 13 for ceiling installation.
l Header Wall
_2" (5 cm) Track
!
Highest Point
ofTravel
--Door
Sectional door with curved track
WaH
Door _ Highest
Point
_ _,_ of Travel
One-piece door without track:
jamb hardware
H Header Wall Track
_" (5 cm) I
JJ Highest Point
_ of Travel
Y
17
One-piece door with horizontal track
Header Wall
8" (20 cm)
Highest
Point
of Travel
One-piece door without track:
pivot hardware
12