Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT - Manual (Page 14)

Installation Step 2
InstaU the Header Bracket
You can attach the header bracket either to the
wall above the garage door, or to the celling.
Follow the instructions which will work best for
your particular requirements.
Wall Header Bracket Installation
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). • 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.
2x4
Structural
Header
Bracket
Highest Point of
Garage Door Travel
Wall Mount
Door
Spring
Optional
Mounting Holes
Vertical
Center
Line
h■arc Iware Shown Actual Size
1111111
1
I>
Lag Screw
5/16*-9x1-5/8"
Ceiling Header Bracket Installation
• Extend the vertical guideline onto the ceiling as
shown.
• Center the bracket on the vertical mark, no more
than 6" from the wail. Make sure the arrow is
pointing toward the waii. 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
- Finished Ceiling —
Vertical
Center Line
o
UP
o
Door Spring
14