Chamberlain 8355 - Install the Header Bracket

8
You can attach the header bracketeither to the
wall above the garage door, or to the ceiling.
Follow the instructionswhich will work best for
your particular requirements.Do not install the
headerbracket over drywall.If installinginto
masonry, use concrete anchors (not provided).
HARDWARE
Lag Screw
5/16" - 9 x 1-5/8"
OPTION A WALL INSTALLATION
2.1A Center the bracket on the vertical
centerline with the bottomedge of the
bracketon the horizontal line asshown
(with the arrow pointing toward the
ceiling).
2.2A Markthe vertical setofbracketholes (do
not use the holes designated for ceiling
mount).Drill 3/16" pilot holes and fasten
the bracketsecurely to a structural
supportwith lag screws.
OPTION B CEILING INSTALLATION
2.1B Extend the vertical centerline onto the
ceiling as shown.
2.2B Center the bracket on the vertical mark,
no more than 6" (15 cm) from the wall.
Make sure the arrow ispointing toward
the wall.The bracketcan be mounted
flush against the ceiling when clearance
is minimal.
2.3B Markthe side holes.Drill 3/16" pilotholes
and fasten bracketsecurely to a structural
supportwith lag screws.
Wall Mount
Optional
Mounting
Holes
Vertical
Centerline of
Garage Door
(Header Wall)
Header
Bracket
2x4 Structural
Support
Door
Spring
(Garage Door)
Highest Point of
Garage Door
Travel
Horizontal
Line
Lag Screw
5/16" - 9 x 1-5/8"
(Header Wall)
Ceiling Mounting
Holes
(Finished Ceiling)
Vertical
Centerline of
Garage Door
Header
Bracket
6" (15 cm)
Maximum
Door Spring
(Garage Door)
Lag Screw
5/16" - 9 x 1-5/8"
Installation
2 Install the Header Bracket