Fasten The Door Bracket - Chamberlain ATS Owner's Manual

INSTALLATION STEP 11

Fasten the Door Bracket

A horizontal brace should be long enough to be secured
to 2 vertical supports. A vertical brace should cover the
height of the top panel.
The illustration shows one piece of angle iron as the
horizontal brace. For the vertical brace, 2 pieces of angle
iron are used to create a "U"-shaped support. The best
solution is to check with your garage door manufacturer
for an opener installation door reinforcement kit.
• Center the door bracket on the previously marked
vertical guideline used for the header bracket
installation.
• Position the bracket on the face of the door within the
following limits:
A) The top edge of the bracket 2"-4" (5-10 cm) below
the top edge of the door.
B) The top edge of the bracket directly below any
structural support across the top of the door.
• Mark and drill 5/16" left and right fastening holes.
Secure the bracket as shown in Figure 1 if there is
vertical reinforcement.
If your installation doesn't require vertical reinforce ment
but does need top and bottom fastening holes for the door
bracket, fasten as shown in Figure 2.
Header
Bracket
Door
Bracket
Location
Vertical
Centerline
of Garage
Door
Fiberglass, aluminum or lightweight steel garage
doors WILL REQUIRE reinforcement BEFORE
installation of door bracket. Contact your door
manufacturer for reinforcement kit.
HARDWARE SHOWN
19
ACTUAL SIZE
Self-Threading Screw
1/4"-14x5/8"
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fi berglass, aluminum, steel doors with
glass panel, etc.). (Not Provided)
Vertical
Reinforcement
Vertical
Centerline of
Garage Door
Door
Bracket
Self-Tapping Screw
1/4"-14x5/8"
Inside Edge of Door or
Reinforcement Board
Door
Bracket
Door
Bracket
Plate
Self-Tapping Screw
1/4"-14x5/8"
Figure 1
Figure 2