Chamberlain PD432DM 1/2 HP Garage Door Opener User Manual


 
19
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 fi nished 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 (see
accessories).
Existing brackets from a previous installation may be
fastened to the sides of the motor unit as in Figures 1, 2
and 3. Then continue with step 6 below.
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"-18x1-7/8" 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.
To avoid possible SERIOUS INJURY from 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
Figure 2
Figure 3
FINISHED CEILING
FINISHED CEILING
Lag Screws
5/16"-18x1-7/8"
Lag Screws
5/16"-18x1-7/8"
Lag Screws
5/16"-18x1-7/8"
Structural
Supports
Bracket
(Not Provided)
Hidden Support
Measure
Distance
Bolt 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
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
HARDWARE SHOWN ACTUAL SIZE
Lag Screw
5/16"-18x1-7/8"
Nut 5/16"-18
Lock
Washer 5/16"
Hex Bolt
5/16"-18x7/8"