Craftsman 139.53675SRT Garage Door Opener User Manual


 
P'.ease read and comply with the warnings and reinforcement instructions on page 24.
They apply to one-piece doors also.
1
1
I
2x4 Support
Vertical
Cente_neof
Ooor
Center the bracket on the top of the door, in line
with the header bracket as shown. Mark holes°
Drill 5/16" pilot holes and fasten the door bracket
with hardware supplied.
If the door has no exposed framing, drill 3/16" pilot
holes and fasten the bracket with 5/16"x1-112" lag
screws (not supplied) to the top of the door.
The door bracket may be installed on the top
edge of the door if required for your installation.
(Refer to the dotted line optional placement
drawing.) Drill 3/16" pilot holes and substitute
5/16"x1-112" lag screws (not supplied) to fasten
the bracket to the door.
Hardware Shown Actual Size
© ©
Nut 5/16"-18 Loc_ washer 5/16"
25