INSTALLATION STEP 1
Unfinished
Determine the Header BracketCeiling
Location
Header Wall | 2x4 |
To prevent possible SERIOUS INJURY or DEATH: | Vertical Centerline | |
• Header bracket MUST be RIGIDLY fastened to structural | of Garage Door | |
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support on header wall or ceiling, otherwise garage door |
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might not reverse when required. DO NOT install header |
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bracket over drywall. |
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• Concrete anchors MUST be used if mounting header bracket |
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or 2x4 into masonry. |
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• NEVER try to loosen, move or adjust garage door, springs, |
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cables, pulleys, brackets, or their hardware, all of which are |
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under EXTREME tension. | Level | |
• ALWAYS call a trained door systems technician if garage | ||
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door binds, sticks, or is out of balance. An unbalanced |
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garage door might not reverse when required. |
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SECTIONAL DOOR ONLY
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 |
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(1.22 m) of the left or right of the door center only if |
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a torsion spring or center bearing plate is in the |
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| Header Wall | |||||||||
way; or you can attach it to the ceiling (see page 9) |
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| 2" (5 cm) Track | |||||||
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when clearance is minimal. (It may be mounted on |
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the wall upside down if necessary, to gain |
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approximately 1/2" [1 cm].) |
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If you need to install the header bracket on a 2x4 |
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(on wall or ceiling), use lag screws (not provided) |
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to securely fasten the 2x4 to structural supports as |
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shown here and on page 9. |
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3. Open your door to the highest point of travel as shown. |
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Draw an intersecting horizontal line on the header wall |
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2" (5 cm) above the high point. This height will provide |
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travel clearance for the top edge of the door. |
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OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
2x4 Structural Supports
Sectional door with curved track
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