Sears 139.53915D Garage Door Opener User Manual


 
INSTALLATION STEP 5
Hang the Opener
Three representative installations are shown. Yours may
be different. Hanging brackets should be angled (Figure 1)
to provide rigid support. On finished ceilings (Figure 2 and
Figure 3), attach a sturdy metal bracket to structural
supports before installing the opener. This bracket and
fastening hardware are not provided.
1. Measure the distance from each side of the motor unit
to the structural support.
2. Cut both pieces of the hanging bracket to required
lengths.
3. Drill 3/16" pilot holes in the structural supports.
4. Attach one end of each bracket to a support with
5/16"-18xl -7/8" lag screws.
5. Fasten the opener to the hanging brackets with
5/16"-18x7/8" hex bolts, lock washers and nuts.
6. Check to make sure the rail is centered over the door
(or in line with the header bracket if the bracket is not
centered above the door).
7. Remove the 2x4. Operate the door manually. If the door
hits the rail, raise the header bracket.
NOTE: DO NOT connect power to opener at this time.
HARDWARE SHOWN ACTUAL SIZE
Hex Bolt
5/16" 18x7/8"
©
Nut 5/16" 18
Lock Washer 5/16"
Toavoid possible SERIOUSINJURYfrom a falling garage door
opener,fastenit SECURELYto structural supports of the
garage.Concreteanchors MUSTbe usedif installing any
brackets into masonry.
Figure 1_i al
//Supports
Measure ',
Distance
Bolt 5/16" 18x7/8"
Lag Screws
5/16" 18xl 7/8"
Nut 5/16" 18
Figure 2
Bolt 5/16"
Lock Washer 5/16"
Nut 5/16" 18
Figure 3
Lag Screws //_ _-
5/16" 18xl 7/8" _ _ _ _ _
_ - - - - - - - FINISHED CEILING
(Not Provided)
Bolt 5/16" 18x7/8"
_ Lock Washer 5/16"
Bolt 5/16" 18x7/8" Nut 5/16" 18
Lock Washer 5/16"
Nut 5/16" 18
16