Chamberlain Whisper Drive Security+ HD800D, Owner'S Manual

Page: 16 / 44

16
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,
attach a sturdy metal bracket to structural supports before
installing the opener. This bracket and fastening hardware
are not provided.
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. 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.
Lag Screw 5/16"-18x1-7/8"
Hex Bolt
5/16"-18x7/8"
Nut 5/16"-18
Lock Washer 5/16"
HARDWARE SHOWN ACTUAL SIZE
Meas u re
Distance
Lag Scre w s
5/16"- 1 8 x1-7/ 8 "
Bracket
(
N ot Pro v ided)
Lag Scre w s
5/16"-1 8 x1-7/ 8 "
( N ot Pro v ided)
Hex Bolts
5/16"-1
8 x7/ 8 "
Lock W ashers 5/16"
Nu ts 5/16"-1 8
— FINISHED CEILING —
Hex Bolts
5/16"-1
8 x7/ 8 "
Lock W ashers 5/16"
Nu ts 5/16"-1 8
Hex Bolts
5/16"-1
8 x7/ 8 "
Lock W ashers 5/16"
Nu ts 5/16"-1 8
Hidden
S
u pport
Str u ct u ral
S u pports
Preferred ran g e of
bracket placement
Preferred ran g e of
bracket placement
Utilizin g existin g top mount installation
Existing Brackets
Bracket
(Pro
v ided)
Hanging Brackets
Figure 1
Figure 2
Figure 3