Determine The Header Bracket Location - Craftsman CMXEOCG781 Owner's Manual

INSTALLATION STEP 1

DETERMINE THE HEADER BRACKET LOCATION

To prevent possible SERIOUS INJURY or DEATH:
Header bracket MUST be RIGIDLY fastened to structural support on header
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wall or ceiling, otherwise garage door might NOT reverse when required.
DO NOT install header bracket over drywall.
Concrete anchors MUST be used if mounting header bracket or 2x4 into
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masonry.
NEVER try to loosen, move or adjust garage door, springs, cables,
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pulleys, brackets, or their hardware, ALL of which are under EXTREME
tension.
ALWAYS call a trained door systems technician if garage door binds,
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sticks, or is out of balance. An unbalanced garage door might NOT
reverse when required.
Installation procedures vary according to garage door types. Follow the instructions
which apply to your door.
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 (1.22 m) 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 15) when clearance is minimal.
(It may be mounted on the wall upside down if necessary, to gain
approximately 1/2" (1 cm). 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 15.
3. Open your door to the highest point of travel as shown. Draw an
intersecting horizontal line on the header wall above the high point:
2" (5 cm) above the high point for sectional door and one-piece door with
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track.
8" (20 cm) above the high point for one-piece door without track.
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This height will provide travel clearance for the top edge of the door.
NOTE: If the total number of inches exceeds the height available in your garage,
use the maximum height possible, or refer to page 15 for ceiling installation.
Header Wall
Header Wall
2" (5 cm)
Highest Point
of Travel
Door
Sectional door with curved track
Header Wall
8" (20 cm)
Door
Jamb
Hardware
One-piece door without track:
jamb hardware
14
Unfinished
Ceiling
2x4
Vertical Centerline
of Garage Door
2x4
Level
(optional)
Track
Header Wall
Door
One-piece door with horizontal track
Header Wall
8" (20 cm)
Highest
Point
of Travel Door
One-piece door without track:
pivot hardware
OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
Structural
Supports
Track
2" (5 cm)
Highest Point
of Travel
Highest
Point
of Travel
Pivot