Hang The Opener - Craftsman 139.53992 Manual Del Propietário

INSTALLATION STEP 6
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), attach a sturdy metal bracket to
structural supports before installing the opener. This
bracket and fastening hardware are not provided
(see accessories).
Existing brackets from a previous installation may be
fastened to the sides of the motor unit as in
Figures 1 and 2, or to the mounting tabs as shown in
Figure 3. Then continue with step 5 below.
1. Remove foam packaging. 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" Jag screws.
5. Fasten the opener to the hanging brackets with
5/16"-18x7/8" hex bolts, lock washers and nuts.
If you wish to utilize the two center mounting tabs,
you must triangulate the vertical brackets for
additional stability. See Figure 3.
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.
To avoid possible SERIOUSINJURYfrom a falling
garage door opener,fasten it SECURELY to structural
supports of the garage. Concrete anchors MUST be used
if installing any brackets into masonry.
Figure 1 'Structural
Measure _
Distance
Lag Screws
5/16"- 18xl-7/8"
Hex Bolt
5/16"-18x7/8"
Nuts 5/16"-18
Preferred range of
bracket placement
Bracket
(Not Provided)
BoIt 5/16"- 18x7/8"
Lock Washer 5/16"\
Nut 5/16"-18
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
HARDWARESHOWNACTUALSIZE
Hex Bolt
5/16"-18x7/8"
©©
Nut 5/16"-18 Lock Washer 5/16"
Preferred range of
bracket placement
Figure 3
Existin, B_ rackets Top Mounting Tabs
Bracket i 0_
Utilizing existing top mount installation
2O