Install The Header Bracket; Lag Screw 5/16"-9X1-5/8; Lag Screw 5/16"-18X1-7/8 - Chamberlain 1280 Owner's Manual

1/2 hp professional line
Hide thumbs Also See for 1280:
Table of Contents

Advertisement

Installation Step 2

Install the Header Bracket

• Center the bracket on the vertical guideline with
the bottom edge of the bracket on the horizontal
line as shown (with the arrow pointing toward the
ceiling).
Header
Wall
Header
Bracket
2x4
Structural
Support
2"
Highest
Point of Travel
(of Garage Door)
• Extend the vertical guideline onto the ceiling as
shown.
• Center the bracket on the vertical mark, no more than
6" 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 holes designated for ceiling mount only. Drill
3/16" pilot holes and fasten bracket securely to a
structural support with the hardware provided.
Ceiling Mounting Holes
The nail hole is for positioning only.
You must use lag screws to mount
the header bracket.
Fasten the Header Bracket to the Wall
Vertical
Center
Line
Spring
Garage
Door
Vertical
Center
Line
Fasten the Header Bracket to the Ceiling
CEILING MOUNT ONLY
UP
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.
• Mark either 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.
Lag Screws
5/16"x9x1-5/8"
Door
The nail hole is for positioning
only. You must use lag screws to
mount the header bracket.
Hardware Shown Actual Size
6" Maximum
Door
Spring
Garage
Door
10
Wall
Mounting Holes
CEILING MOUNT ONLY
UP
Optional
Wall Mounting
Holes
Lag Screw
5/16"-9 x 1-5/8"
Finished
Ceiling
Vertical
Center Line
Header
Bracket
Lag Screws
5/16"x9x1-5/8"
Header
Wall
Vertical
Center Line

Advertisement

Table of Contents
loading

This manual is also suitable for:

1298Liftmaster 1280-298

Table of Contents