Determine The Header Bracket Location - Chamberlain 3595S 3/4 HP 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 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.
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
(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 9)
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 9.
3. Open your door to the highest point of travel as shown.
Draw an inter secting horizontal line on the header wall
2" (5 cm) above the high point. This height will provide
travel clearance for the top edge of the door.
Unfi nished
Ceiling
Header Wall
Header Wall
Door
8
2x4
Vertical Centerline
of Garage Door
2x4
Level
(Optional)
2" (5 cm)
Track
Highest
Sectional
Point of
Travel
door with
curved track
OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
Structural
Supports