Installation Section: Pages 12- 27
Installation Step I
Determine Header Bracket Location
WARN
Installation procedures vary according to garage door types. Follow the instructions which apply to your door.
| Verlical |
Guideline | |
Wal |
|
2X4
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.
Structural
•Close the door and mark the inside vertical centedine of the garage door.
•Extend the line onto the header wall above the door.
Remember, you can fasten the header bracket within 2 feet of the
left or right of the door center onlyif 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 provided) 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 2" above
the high point. This height will provide travel clearance for the top edge of the door.
Door clearance brackets are available for sectional doors when headroom clearance is less than 2". See accessory page 38.
Ceiling
Wal
Tra_Header
I | Track |
N_ Point
HighestPoint ol Travel
Sectional | door | |
with curved | track | with horizontal track |
Proceed to Step 2, page 14.
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