Craftsman 139.53920D Garage Door Opener User Manual


 
tiHSTALLAT!ION 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 cenledine with
the bottom edge of the bracket on the horizontal
line as shown (with the arrow pointing toward the
ceiling)
. Mark the vertical set of bracket holes Drill 3/16"
pilot holes and fasten the bracket securely to a
structural support with the hardware provided.
HARDWARE SHOWN ACTUAL SIZE
L_g Screw
5/16"-9x1-5/8"
Waft Mount
Optior_al
Moueliog Holes
2x4
Structura!
Suppo_
I
Hodzontal
Line _- _
T
Highest Pater of
Garage Door Travel
Vertical
Cantedine
Garage Door
Lag Screws
5116'xgxl _5/8"
"_Door Spr_ng
Cen|edlne
of Garage Door
CEILING HEADER BRACKET INSTALLATION
Extend the vertical centerline onto the ceiling as
shown,
o Center the bracket on the vertical mark, no more
than 6" (t5 cm) from the wall. Make sure the arrow
is pointing away from 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
Header _
Bracket
6" (15 cm) Maximum
Door
Spring
Cenleriine
of Garage Door
13