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Installation Step 1
Determine Header Bracket Location
Header
Wall
• 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.
Highest Point
Door
Proceed to Step 2, page 9.
Installation Section: Pages 8 – 20
Finished
Vertical
Ceiling
Guideline
2x4
Vertical
Guideline
Ceiling
Header
Wall
Track
2"
of Travel
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 23). 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 garage door
service.
• Close the door and mark the inside
Structural
Supports
vertical centerline of the garage door.
• Extend the line onto the header wall
above the door.
Remember, you can fasten the
header bracket within 2 feet to 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 9) when
clearance is minimal.
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.
Ceiling
Header
Wall
2"
Highest Point
of Travel
Door
8
WARNING
Track
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