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INSTALLATION STEP 1
Determine the Header Bracket
Location
To preventpossibleSERIOUSiNJURYor DEATH:
• HeaderbracketMUSTbe RIGIDLYfastenedto
structural support on headerwall or ceiling,otherwise
garagedoor might not reversewhen required.DO NOT
install headerbracketover drywall
• ConcreteanchorsMUST beusedif mounting header
bracketor 2x4 into masonry,
• NEVERtry to loosen, moveor adjust garagedoor,
springs, cables,pulleys,brackets,or their hardware,all
of which areunder EXTREMEtension.
• ALWAYScall atrained door systemstechnicianif
garagedoor binds,sticks, or is out of balance.An
unbalancedgaragedoor might not reversewhen
required.
Installation procedures vary according to garage door
types. Follow the instructions which apply to your
door.
SECTIONAL DOOR
AND ONE-PIECE DOOR WITH TRACK
1. Close the door and mark the insidevertical
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
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 14) when clearance is minimal. (It may be
mounted on the wall upside down if necessary,
to gain approximately 1/2".)
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 2" above the high point, This height
will provide travel clearance for the top edge of the
door.
NOTE: Door clearance brackets are available for
sectional doors when headroom clearance is less
than 2". See accessory page 39.
Proceed to Step 2, page 14.
Vertical __ Finished-
Centerline Ceiling
2x4 StrucJural
Ceiling
I
Header Wall
._L--_2" Track
Highest Point
of Travel
-- DoOr
Sectional door
with curved
track
Header Wall
Track
'--2"
One-piece
door with
horizontal
track
of Travel
12