Craftsman 139.3043 Garage Door Opener User Manual


 
INSTALLATION STEP 5
Hangthe Opener
Threerepresentativeinstallations are shown. Yours may be
different. Hangingbrackets should be angled (Figure 1) to provide
rigid support. On finished ceilings (Figures 2 and 3), attach a
sturdy metal bracketto structural supports before installing the
opener.This bracketand fastening hardwareare not provided.
1. Measurethe distancefrom each side of the motor unit to the
structural support.
2. Cut both piecesof the hanging bracketto required lengths.
3. Drill 3/16" pilot holes in the structural supports.
4. Attach one end of eachbracketto a support with
5/16"-18xl -7/8" lag screws.
5. Fastenthe opener to the hanging brackets with
5/16"-18x7/8" hex bolts, lock washers and nuts.
6. Checkto make sure the rail is centered over the door
(or in line with the headerbracket if the bracket is not centered
abovethe door).
7. Removethe 2x4. Operatethe door manually. If the door hits
the rail, raisethe header bracket.
NOTE:DONOTconnect power to openerat this time.
HARDWARESHOWN ACTUALSIZE
,,_ _ ,,
Lag Screw 5/16 18xl 7/8
HexBolt
5/16"-18x7/8" Nut 5/16"-18 LockWasher 5/16"
To avoid possible SERIOUSINJURYfrom a falling garage door
opener,fasten it SECURELYto structural supports of the
garage.Concrete anchors MUST be used if installing ANY
brackets into masonry.
FigureI
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
orts
LagScrews
5/16"-18xl -7/8"
Figure2
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
FINISHED CEILING
._-
(Not Provided)
Bolt 5/16"-18x7/8"
LockWasher 5/16"
Nut 5/16"-18
Figure3
LagScrews
5/16"-18xl-7/8"
Bolt 5/16"-18x7/8"
Lock Washer5/16"
Nut 5/16"-18
(Not Provided)
Bolt 5/16"-18x7/8"
LockWasher 5/16"
Nut 5/16"-18
16