You may find it helpful to refer back to this page as you proceed with the installation of your opener.
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.
Support bracket &
fastening hardware
is required.
See page 13.
— — — — — — — —
Door Center
Header Wall
Safety
Reversing
Sensor
Floor must be level
across width of door
FINISHED CEILING
Extension Spring
Torsion Spring
Access Door
OR
OR
One-Piece Door-Extension Spring
Header
Wall
Door
Track
Before you begin, survey your garage area to see whether any of the conditions below apply to
your installation.
SECTIONAL Door or
ONE-PIECE Door with Track Installation
Safety Reversing Sensor
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 13.
Safety
Reversing
Sensor
Header
Wall
Access Door
Gap between floor and bottom of
door must not exceed 1/4".
ONE-PIECE Door Without Track Installation
10
UP
CE
ILI
NG
M
OU
NT
O
NL
Y
12
11
6
5
NOTIC
E
7
9
LIGHT
LOCK
1
13
14
15
4
12VDC
3
2
8
1
The Chamberlain Group, Inc.
LM Screw Drive #114A1794
6/20/94
8
4
5
2
3
7
6
Rail Assembly Parts
Installation Parts
32
KEY
PART
NO.
NO.
DESCRIPTION
1
41A4795
Hardware bag (Includes
sprocket coupling)
2
12B569-1
Left rail bracket
3
12B569-2
Right rail bracket
4
81C168
Rack
5
41C4677
Complete trolley
assembly
6
1D4828-1
One-piece T-rail
7
41A4836
Drive sprocket kit
8
25A18
Sprocket coupling
KEY PART
NO.
NO.
DESCRIPTION
1
41A4202A
Multi-function door control panel
2
41A4166
Lighted door control button
3
10A14
12V battery
4
29C128
Transmitter visor clip
5
41A3984-7
Remote control case, cover & screw only (no
circuit board)
6
41A2828
Manual release rope & handle assy.
7
217A238
2-Conductor bell wire - white & white/red
8
41A5047
Door bracket w/clevis pin & fastener
9
41A4353
Header bracket w/clevis pin & fastener
10
41A4373A
Safety sensor kit (receiving and sending eyes
with 3' 2-conductor bell wire attached)
11
178B35
Curved door arm section
12
178B34
Straight door arm section
13
12B483
C-wrap bracket
14
12B484
Square hole bracket
15
12B485
Slotted bracket
NOT SHOWN
41A4116
Safety sensor hardware
41A4675-4
Opener installation hardware bag
(includes hardware listed on page 3)
114A1794
Owner's manual
Repair Parts