Chamberlain 2565.5 Determine the Header Bracket Location, track, door with, horizontal, SECTIONAL DOOR, INSTALLATION STEP, Proceed to Step 2, page, AND ONE-PIECEDOOR WITH TRACK

INSTALLATION STEP 1

Determine the Header Bracket Location

WARNING

To prevent possible SERIOUS INJURY or DEATH:

•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.

•Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.

•NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, all of which are under EXTREME tension.

•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.

SECTIONAL DOOR

AND ONE-PIECE DOOR WITH TRACK

1. Close the door and mark the inside vertical

centerline of the garage door.

VerticalFinished

Centerline Ceiling

Header

Wall2x4 Structural

Supports

Vertical

Centerline

Ceiling

Header Wall

2" Track

Highest Point

2. Extend the line onto the header wall above the

door.

You can fasten the header bracket within 4 feet

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 10) 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 10.

3. Open your door to the highest point of travel as

shown. Draw an intersecting horizontal line on the

of Travel

Door

Sectional door with curved track

header wall 2" above the high point. This height

will provide travel clearance for the top edge of the

door.

Proceed to Step 2, page 10.

	Header Wall
	Track
	2"
One-piece	Highest Point
door with	of Travel
	Door
horizontal
track

8