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Header
Wall
Ceiling
Track
Highest Point
of Travel
Door
Door
Track
3"
Header
Wall
Highest Point
of Travel
3"
12
Vertical
Guideline
Finished
Ceiling
Vertical
Guideline
Header
Wall
2x4
Structural
Supports
SECTIONAL Door or
ONE PIECE Door with Track
• Close the door and mark the inside
vertical centerline of the garage door.
• Extend the line onto the header wall
above the door.
Remember, 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
(refer to 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 supplied) to securely fasten the 2x4 to
structural supports as shown here and on
page 13.
• Open your door to the highest point of
travel as shown. Draw an intersecting
horizontal line on the header wall 3"
above the high point. This height will
provide travel clearance for the top edge
of the door.
Proceed to Step 2, page 14.
Installation Section: Pages 12 – 27
Sectional door
with curved track
One-piece door
with horizontal track
Installation Step 1
Determine Header Bracket Location
Installation procedures vary according to garage
door types. Follow the instructions which apply to
your door.
If the header bracket is not rigidly fastened to a
structural support on the header wall or ceiling, the
safety reverse system may not work properly (see
page 30).
The door might not reverse when required, and
could cause serious injury or death.
The garage door springs, cables, pulleys, brackets and
their hardware are under extreme tension.
Do not attempt
to loosen, move or adjust them yourself. Serious
personal injury or death could result.
Call for
professional garage door service.
WARNING