Chamberlain B2210T Installation Manual - English Spanish - Page 15

STEP 1 Determine the Header Bracket Location

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Installation STEP 1 Determine the Header Bracket Location To prevent possible SERIOUS INJURY or DEATH: l Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise garage door might NOT reverse when required. DO NOT install header bracket over drywall. l Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry. l NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of which are under EXTREME tension. l ALWAYS call a trained door systems technician if garage door binds, 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 16) 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 (onwall or ceiling), use lag screws (not provided) to securely fasten the 2x4 to structural supports as shown here and on page 16. 3. Open your door to the highest point of travel as shown. Draw an intersecting horizontal line on the header wall 2"(5 cm) above the highpoint: l 2" (5 cm) above the high point for sectional door and one-piece door with track. l 8" (20 cm) above the high point for one-piece door without track. 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 16 for ceiling installation. 15 Header Wall Vertical Centerline of Garage Door 2x4 Structural Supports OPTIONAL CEILING MOUNT FOR HEADER BRACKET Unfinished Ceiling Level (Optional) Sectional door with curved track Header Wall 2" (5 cm) Track Highest Point of Travel Door One-piece door without track: jamb hardware Header Wall 8" (20 cm) Door Jamb Hardware Highest Point of Travel 2x4 One-piece door with horizontal track Header Wall 2" (5 cm) Door Track Highest Point of Travel One-piece door without track: pivot hardware Header Wall 8" (20 cm) Door Highest Point of Travel Pivot

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15
To prevent possible SERIOUS INJURY or DEATH:
l
Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise
garage door might NOT reverse when required. DO NOT install header bracket over drywall.
l
Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.
l
NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware,
ALL of which are under EXTREME tension.
l
ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An
unbalanced garage door might NOT reverse when required.
Header Wall
Vertical Centerline of Garage Door
Level
(Optional)
2x4
Track
Track
Sectional door with curved track
Header Wall
2” (5 cm)
Highest
Point of
Travel
Door
8” (20 cm)
Header Wall
One-piece door without track:
jamb hardware
Door
Jamb
Hardware
Highest
Point of
Travel
Structural
Supports
OPTIONAL CEILING MOUNT
FOR HEADER BRACKET
Unfinished
Ceiling
2x4
Header Wall
2” (5 cm)
One-piece door with horizontal track
Door
Header Wall
One-piece door without track:
pivot hardware
Door
Highest
Point of
Travel
Highest
Point of
Travel
8” (20 cm)
Pivot
Installation
STEP 1 Determine the Header Bracket Location
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 16) 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 (onwall or ceiling), use lag screws (not provided) to securely fasten the 2x4 to structural supports as
shown here and on page 16.
3.
Open your door to the highest point of travel as shown. Draw an intersecting horizontal line on the header
wall 2”(5 cm) above the highpoint:
l
2” (5 cm) above the high point for sectional door and one-piece door with track.
l
8” (20 cm) above the high point for one-piece door without track.
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 16 for ceiling installation.