Chamberlain manual 14

INSTALLATION STEP 2

Install the Header Bracket

You can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow the instructions which will work best for your particular requirements. Do not install the header bracket over drywall. If installing into masonry, use concrete anchors (not provided).

WALL HEADER BRACKET INSTALLATION

• Center the bracket on the vertical centerline with

the bottom edge of the bracket on the horizontal

line as shown (with the arrow pointing toward the

Wall Mounting Holes

CEILING MOUNT ONLY

UP

Optional

Wall Mounting Holes

The nail hole is for positioning only.

You must use lag screws to mount the header bracke

Vertical

Centerline

ceiling).

• Mark the vertical set of bracket holes (do not use

the holes designated for ceiling mount). Drill 3/16"

pilot holes and fasten the bracket securely to a

structural support with the hardware provided.

HARDWARE SHOWN ACTUAL SIZE

Header

Wall

2x4Header

Structural Bracket

Support

Horizontal

Line

	LY
NT	ON
OU
G M
ILIN
CE
UP

of Garage Door

Lag Screws 5/16"-9x1-5/8"

Door Spring

Lag Screw 5/16"-9 x 1-5/8"

CEILING HEADER BRACKET INSTALLATION

•Extend the vertical centerline onto the ceiling as shown.

•Center the bracket on the vertical mark, no more than 6" (15 cm) from the wall. Make sure the arrow is pointing toward the wall. The bracket can be mounted flush against the ceiling when clearance is minimal.

•Mark the side holes. Drill 3/16" pilot holes and fasten bracket securely to a structural support with the hardware provided.

Ceiling Mounting Holes

CEILING MOUNT ONLY

UP

The nail hole is for positioning only.

You must use lag screws

to mount the header bracket.

	Garage
	Door
Highest Point of	Vertical
Garage Door Travel	Centerline
	of Garage Door

	– Finished Ceiling –
		Vertical
	Header	Centerline
	Bracket	of Garage Door
6" (15 cm)	UP
Maximum
Door		Lag Screws
Spring
		5/16"-9x1-5/8"
		Header Wall
Garage Door	Vertical
	Centerline
	of Garage Door

14