Hang The Opener - Chamberlain Security+ 4620 Owner's Manual

The Chamberlain Group, Inc.
Installation Step 6
Screw Drive Liftmaster #114A1794

Hang the Opener

Hang Opener Chassis
6/18/94
Two 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. The bracket and
fastening hardware are not supplied.
1. Measure the distance from each side of the opener 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" screws, 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.
Hardware Shown Actual Size
5/16"-18 x 1-7/8"
Hex Screw
5/16"- 18 x 7/8"
[
Lag Screw
Lock Washer 5/16"
Nut 5/16" - 18
The opener could fall and injure someone if it is not
properl y secured. Fasten the opener securel y to
structural supports of the garage.
Figure 1
Measure
Distance
5/16"-18x7/8"
Hex Screws
5/16" Lock Washers
5/16"-18 Nuts
Preferred Range of
Bracket Placement
Figure 2
Bracket
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
Preferred Range of
Bracket Placement
20
WARNING
CAUTION
Structural
Lag Screws
5/16"-18x1-7/8"
— FINISHED CEILING —
Hidden
Support
Lag Screws
5/16"-18x1-7/8"
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
Supports