LiftMaster 1355 1355 Manual - Page 25

One-piece Doors

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ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • Center the door bracket on the top of the door, in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes. • Metal Doors: Drill 3/16" pilot holes and fasten the bracket with the 1/4"-14x5/8" self-threading screws provided. • Wood Doors: Drill 5/16" holes and use 5/16"x2" carriage bolts, lock washers and nuts (not provided) or 5/16"x1-1/2" lag screws (not provided) depending on your installation needs. NOTE: The door bracket may be installed on the top edge of the door if required for your installation. (Refer to the dotted line optional placement drawing.) Header Wall 2x4 Support Finished Ceiling Header Bracket Door Bracket Optional Placement of Door Bracket Vertical Centerline of Garage Door HORIZONTAL AND VERTICAL REINFORCEMENT IS NEEDED FOR LIGHTWEIGHT GARAGE DOORS (FIBERGLASS, ALUMINUM, STEEL, DOORS WITH GLASS PANEL, ETC.). (NOT PROVIDED) HARDWARE SHOWN ACTUAL SIZE Self-Threading Screw 1/4"-14x5/8" Door Bracket Nut 5/16"-18 Door Bracket Self-Threading Screw 1/4"-14x5/8" Top of Door (Inside Garage) Top Edge of Door Optional Placement METAL DOOR Lock Washer 5/16" Top of Door (Inside Garage) Top Edge of Door Optional Placement Carriage Bolt 5/16"x2" (Not Provided) For a door with no exposed framing, or for the optional installation, use lag screws 5/16"x1-1/2" (Not Provided) to fasten door bracket. WOOD DOOR 25

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25
Header
W
all
Vertical
Centerline of
Garage Door
Finished Ceilin
g
Optional
Placement
of Door
Bracket
Header
Bracket
Door
Bracket
2x4 S
u
pport
For a door
w
ith no exposed framing,
or for the optional installation,
u
se
lag scre
w
s 5/16"x1-1/2" (
N
ot Pro
v
ided)
to fasten door
b
racket.
METAL DOOR
Top of Door
(Inside
Garage)
Door
Bracket
Optional
Placement
Top Edge
of Door
Self-Threading
Scre
w
1/4"-14x5/
8
"
Door
Bracket
Top of Door
(Inside
Garage)
Carriage Bolt
5/16"x2"
(
N
ot Pro
v
ided)
Optional
Placement
Lock
W
asher
5/16"
Nu
t
5/16"-1
8
Top Edge
of Door
WOOD DOOR
HORIZONTAL AND VERTICAL
REINFORCEMENT IS NEEDED
FOR LIGHTWEIGHT GARAGE
DOORS (FIBERGLASS,
ALUMINUM, STEEL, DOORS
WITH GLASS PANEL, ETC.).
(NOT PROVIDED)
ONE-PIECE DOORS
Please read and comply with the warnings and
reinforcement instructions on the previous page.
They apply to one-piece doors also.
•
Center the door bracket on the top of the door, in
line with the header bracket as shown. Mark either
the left and right, or the top and bottom holes.
•
Metal Doors:
Drill 3/16" pilot holes and fasten the
bracket with the 1/4"-14x5/8" self-threading screws
provided.
•
Wood Doors:
Drill 5/16" holes and use 5/16"x2"
carriage bolts, lock washers and nuts (not
provided) or 5/16"x1-1/2" lag screws (not provided)
depending on your installation needs.
NOTE:
The door bracket may be installed on the top
edge of the door if required for your installation.
(Refer to the dotted line optional placement drawing.)
Self-Threading Screw
1/4"-14x5/8"
HARDWARE SHOWN
ACTUAL SIZE