Craftsman 139.53661SRT1 Garage Door Opener User Manual


 
Installation Step 5
Hang the Opener
I
Two representative Installations are shown.
Yours may be different. Hanging brackets should
be angled, Figure 1, to provide dgid support. On
finished ceilings, Figure 2, attach a sturdy metal
bracket to structuralsupports before installing the
opener. The bracket and fastening hardware are not
provided. See accessory page 38.
Measure the distance from each side of the opener
to the structural support.
Cut both pieces of the hanging bracket to required
lengths.
Drill 3/16" pilotholes in the structural supports.
Attach one end of each bracket to a support with
5/16"-18xl -7/8" lag screws.
Fasten the opener to the hanging brackets with
5/16"-18x7/8" screws, lock washers and nuts.
Check to make sure the T-rail is centered over the
door (or in linewith the header bracket if the
bracket is not centered above the door).
Remove the 2x4. Operate the door manually. If the
door hits the rail, raise the header bracket.
Figure I
_ StructuraJ
5/16 -18xl -7/8"
Measure.__,
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16".18 Nut
Figure 2
Grease the top and underside of the
rail surface where the trolley __,_
slides. A tube of grease is _-__
supplied.
Hardware Shown Actual Size
5/16"18xl-7/8"
11111111111111111,llD
5/16"- 18X7/8" Nut5/16"-18
LockWasher 5/16"
Hidden . o....° o-"" "'"
SupDort .
o,..- ...;-:::-
..... "" _ ..;-;'.;;"'°"--_.0SH=OCSlU,G--
"" ° - "".'.. - °"" LagScrews•
..-'_ 5/16"-18X1-?/8 ..-"
SupportSra_dxet_ _ _'" 5/ (Not Prodded)
Not Provided) _.\_, ..°-:.°- _ 16"-18x7/8 Screw
5/I 6"-I 8X7/8" Scte_ _ _---_..-
17