Chamberlain 248730 Garage Door Opener User Manual


 
11
NOTE: If the door spring is in the way,
you’ll need help. Have someone hold the
opener securely on a temporary support
to allow the rail to clear the spring.
Attach Rail to the Header Bracket
Mark Bracket Holes Drill Holes Attach Bracket
MOUNT THE HEADER BRACKET
NOTE: If your installation requires that the
header bracket be mounted to the ceiling. The
back edge of the bracket MUST NOT be further
than 6" (15 cm) from the header wall and the
arrow MUST point away from the header wall.
Ceiling Mount the Header Bracket (Optional)
C9 Clevis Pin C4 Ring FastenerC16 Lag Screw
ALL HARDWARE SHOWN ACTUAL SIZE
4 5 6
7
Center bracket on the “center
of garage door” line and the
horizontal line made in Step 2.
A14 Bracket
Drill two 3/16"
pilot holes
Secure bracket
with lag screws
C16
Lag Screw
Center the bracket
on the “center of
garage door” line
A14 Bracket
A14 Header Bracket
A14
Header
Bracket
A14
Header
Bracket
Use holes on left and right side
to secure bracket
Garage Door
Opener Carton
Mounting
Hole
Mounting
Hole
Ceiling Mount
C9 Clevis Pin
C9
Clevis
Pin
C4
Ring Fastener
C4
Ring
Fastener
Mark the top
and bottom
bracket holes
Horizontal Line
Highest
Point of
Travel
Center of
Garage Door