All One-Piece Door Installation Procedure; Fasten The Door Bracket (One-Piece Door) - Chamberlain Security + 9902C Owner's Manual

1/2hp
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Please read and comply with the warnings and reinforcement instructions on page 24. They apply
to one-piece doors also.
Header Wall
Header
Bracket
• Center the bracket on the inside face of the door, in line
with the header bracket as shown. Mark either the left
and right, or the top and bottom holes.
• Drill 5/16" pilot holes and fasten the door bracket with
hardware supplied.

All ONE-PIECE Door Installation Procedure

Finished Ceiling
2x4 Support
Door
Bracket
Vertical
Centerline of
Garage Door
Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fiberglass, aluminum, steel,
door with glass panel, etc.).
Door
Bracket
Hardware Shown Actual Size
Nut 5/16" - 18
25
Inside Edge
of Door or
Reinforcement Board
Lockwasher 5/16"
Carriage Bolt
5/16"-18 x 2-1/2"

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