Craftsman 139.53675SRT Garage Door Opener User Manual


 
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Installation Step 11
Fasten Door Bracket
Follow Instructions which apply to your door
type as illustrated below or on page 25.
ILl, Ill,
A horizontal brace should be long enough to be secured to 2 vertical supports. A vertical brace should
cover the height of the top panel.
The Illustration shows one piece of angle iron as the horizontal brace. For the vertical brace, 2 pieces of
angle tron are used to create a "U"-shaped support. The best solution is to check with your garage door
manufacturer for an opener Installation door reinforcement kit,
oCenter the door bracket on the previously marked
vertical guideline used for the header bracket
instaJlation° Note correct UP placement, as
stamped inside the brackeL
Position the bracket on the face of the door within
the following limits:
A) The top edge of the bracket 2"-4" below the top
edge of the door.
B) The top edge of the bracket directly below any
structural support across the top of the door°
Mark and drill 5/16" left and right fastening holes.
Secure the bracket as shown in Figure 1 if there is
vertical reinforcement.
If your installation doesn't require vertical reinforce-
ment but does need top and bottom fasten{ng holes
for the door bracket, fasten as shown in Figure 2.
HH
Figure I
Inside Edge
of Door or
Reinforcement Board
%
Door Bracket
Figure 2
Hardware Shown Actual Size
Nut 5/16-I 8 L_ Washer 5/16 =
24