Safety Reversing
Sensor
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum,
door with glass panels, etc.).
See page 20 for details.
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 13.
— — — — — — — —
Door
Center
Header Wall
Safety
Reversing
Sensor
Floor must be level
across width of door
Extension Spring
Torsion Spring
Access Door
OR
Slack in chain tension
is normal when
garage door is closed.
Chain
Pulley
Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Manual
Release
Rope & Handle
Door Bracket
Garage
Door
Curved
Door
Arm
Garage
Door
Spring
Header
Wall
Chain
4
Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.
Sectional Door Installation
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 13.
Slack in chain tension
is normal when
garage door is closed.
Safety
Reversing
Sensor
Header
Wall
Access Door
Safety Reversing Sensor
Gap between floor and bottom of
door must not exceed 1/4"
Access
Door
Floor must be level
across width of door
The Chamberlain Group, Inc.
One-Piece Door with Track Installation (Chain -USA)
3/3/93
Slack in Chain Tension
is Normal When
Garage Door is Closed
Safety
Reversing Sensor
Safety
Reversing Sensor
One-Piece Door without Track
One-Piece Door with Track
One-Piece Door Installation
You may find it helpful to refer back to this page as
you proceed with the installation of your opener.