Chamberlain 1280 - 1/2 HP Garage Door Opener User Manual

TM
The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue
Elmhurst, Illinois 60126-1196
Complies with UL 325
Regulations effective
January 1, 1993
®
Garage Door Opener
OWNER'S MANUAL
Model 1280
- 1/2 HP For Residential Use Only
■
Please read this manual and the enclosed safety materials carefully!
■
Fasten the manual near the garage door after installation.
■
The door WILL NOT CLOSE unless the Protector System® is connected and
properly aligned
■
Periodic checks and adjustment of the opener are required to ensure safe
operation.
■
The model number label is located under the light lens on the left side panel
of your opener as shown.
Contents
Page
A review of safety alert symbols .............................2
Safety information regarding garage door locks
and ropes..............................................................3
Testing your garage door for sticking, binding
and balance ..........................................................3
Illustration of sectional door installation .................4
Illustration of one-piece door installation ...............4
Carton inventory .....................................................5
Assembly section - pages 6 – 7
Fasten T-rail to opener .........................................6
Tighten the belt.....................................................6
Attach belt cap retainer.........................................7
Installation safety instructions...............................7
Installation section - pages 8 – 23
Determine header bracket location
Sectional door.....................................................8
One-piece door...................................................9
Install the header bracket ...................................10
Attach the T-rail to header bracket .....................11
Position the opener.............................................12
Hang the opener.................................................13
Install the multi-function door control panel ........14
Install the lights and lenses ................................15
Attach manual release rope and handle.............15
Electrical requirements .......................................16
Contents
Page
®
The Protector System
safety reversing sensor information.................17
Install the safety reversing sensor .................18,19
Fasten door bracket (sectional door)..................20
Fasten door bracket (one-piece door) ................21
Connect door arm to trolley (sectional door) ......22
Connect door arm to trolley (one-piece door).....23
Adjustment section - pages 24 – 26
Travel limit adjustments......................................24
Force adjustments ..............................................25
Test The Protector® System ..............................26
Test the safety reverse system ..........................26
Operation safety instructions ................................27
Care of your opener..............................................27
Maintenance schedule..........................................27
Operation of your opener......................................28
Receiver & remote control programming..............29
Having a problem? .........................................30, 31
Repair parts, rail assembly ...................................32
Repair parts, installation .......................................32
Repair parts, opener assembly.............................33
Accessories ..........................................................34
Index.....................................................................35
How to order repair parts......................................36
Warranty ...............................................................36
Start by reviewing these important safety alert symbols
When you see these safety symbols on the following pages, they will alert you to the possibility of
serious injury or death if you do not comply with the corresponding instructions. The hazard may
come from something mechanical or from electric shock. Read the instructions carefully.
WARNING
WARNING
Mechanical
Electrical
When you see this Safety Symbol on the following pages, it will alert you to the possibility of damage
to your garage door and/or the garage door opener if you do not comply with the corresponding
instructions. Read the instructions carefully.
CAUTION
This garage door opener is designed and tested to offer safe service provided it is installed, operated,
maintained and tested in strict accordance with the safety instructions contained in this manual.
2
CAUTION
WARNING
To avoid damage to the garage door and
opener, disable locks before installing and
operating the opener. Use a wood screw or nail
to hold locks in the "open" (unlocked)
position.
Operation at other than 120V 60 Hz will cause
opener malfunction and damage.
An unbalanced garage door might not reverse
when required and someone under the door
could be seriously injured or killed.
If your garage door binds, sticks or is out of
balance, call for professional garage door
service. Garage doors, door springs, cables,
pulleys, brackets and their hardware, are
under extreme tension and can cause serious
injury or death. Do not try to loosen, move or
adjust them yourself!
Ropes left on a garage door could cause
someone to become entangled and killed.
Remove all ropes connected to the door before
installing and operating the opener.
Test your Door
Before you begin, complete the following test to
make sure your door is balanced, and is not
sticking or binding:
• Lift the door about halfway as shown. Release the
door. It should stay in place, supported entirely by
its springs.
• Raise and lower the door to see if there is any
binding or sticking.
Identify the type and height of your door, any special
conditions that exist, and any additional materials that
may be required, by referring to page 4.
SECTIONAL DOOR
ONE-PIECE DOOR
Safety Reversing Sensor
Installation Hardware
Installation Hardware
Hex Screw 5/16"-18 x 7/8" (4)
Hex Screw #8 x 3/8" (2)
Lag Screw 5/16"-18 x 1-7/8" (4)
Carriage Bolt 5/16"-18 x 2-1/2" (2)
Clevis Pin 5/16" x 2-3/4" (1)
Clevis Pin 5/16" x 1" (2)
Nut 5/16" - 18 (6)
Lock Washer 5/16" (6)
Screw 6AB x 1" (2)
Insulated Staples (10)
Ring Fastener (3)
Handle
Dry Wall Anchors (2)
Rail Grease
Rope
3
Lag Screw 1/4 x 1-1/2" (4)
Hex Screw 1/4-20 x 1-1/2" (2)
Carriage Bolts 1/4" - 20 x 1/2" (4)
Screw #10 - 32 x 3/8" (4)
Lock Nut 1/4" - 20 (4)
Lock Nut #10 x 32 (4)
Wing Nut (2)
Insulated Staples (20)
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
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.
Slack in belt tension
is normal when
garage door is closed.
Header Wall
Extension Spring
OR
Torsion Spring
OR
One-Piece Door-Extension Spring
———
Header
Wall
Door Center
Access Door
———
Track
Door
——
Safety
Reversing
Sensor
Floor must be level
across width of door
Safety Reversing Sensor
ONE-PIECE Door Without Track Installation
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 13.
Header
Wall
Access Door
Safety
Reversing
Sensor
Gap between floor and bottom of
door must not exceed 1/4".
Safety Reversing Sensor
You may find it helpful to refer back to this page as you proceed with the installation of your opener.
4
Carton Inventory
Your garage door opener is packaged in two cartons which contain all parts illustrated below. If anything is
missing, carefully check the packing material. Parts may be "stuck" in the foam. Hardware is listed on page 4.
LOCK
LIGHT
Belt Cap Retainer
Multi-Function
Door Control Panel
Remote Control
Transmitter Visor Clip
Remote Control
Transmitter (1)
with 12V battery
Styrofoam
Belt
Light Lens (2)
2-Conductor Bell Wire
White & White/Red
One-Piece
T-rail
Trolley
Belt
Pulley Bracket
Door Bracket Plate
Y
NL
TO
G
ILIN
CE
UN
MO
UP
Header Bracket
"C" Wrap (2)
Door Bracket
Straight Door
Arm Section
Safety Reversing Sensor
Mounting Bracket
With Square Holes (2)
Safety Reversing Sensor (2)
(1) Sending Eye
(1) Receiving Eye
Curved Door
Arm Section
Safety Reversing Sensor
Mounting Bracket
With Slot (2)
2-Conductor Bell Wire with Connector
White & White/Black (2 rolls)
5
Safety Labels
and
Literature
USE ONLY THIS
TYPE AND SIZE
SCREW
Assembly Section: Pages 6 - 7
ASSEMBLY STEP 1
CAUTION
Attach the T-Rail To the Opener
The Chamberlain Group, Inc.
Liftmaster Synchro Drive
Spring Trolley Nut Assembly
3/5/92
5/16 /92 screws
- 5/21/92
- 6/2/92
• Remove
the two- washered
mounted
in top
of opener.
6/11/92
To fasten rail, use only those screws mounted
in the top of the opener. Any other screws will
cause serious damage to the opener.
Washered Screw
5/16"-18x1/2"
Styrofoam
• Align T-rail and styrofoam over opener sprocket.
• Cut tape from T-rail, belt and styrofoam.
• REMOVE STYROFOAM.
Belt
USE ONLY THIS
TYPE AND SIZE
SCREW
• Insert both washered screws through the T-rail
into the opener. Tighten both screws securely .
USE ONLY THESE SCREWS! Any other screws
Inc. will cause serious damage to the opener.
T-Rail
Hole
Washered Screw
5/16"-18x1/2"
The Chamberlain Group,
Liftmaster Synchro Drive
Spring Trolley Nut Assembly Position belt over the opener sprocket.
3/5/92 - 5/16 /92 - 5/21/92 - 6/2/92
6/11/92
Opener
Sprocket
T-Rail
Hole
Belt
T-Rail
Hole
Figure B
ASSEMBLY STEP 2
Set the Belt Tension
Nut
Ring
Trolley
Threaded
Shaft
Square End
Figure A
Trolley
Nut Ring
Slots
Trolley
Threaded
Shaft
Trolley
• Place a 7/16" open end wrench on the square
end. Rotate about 1/4 turn until the spring releases
The Chamberlain Group,and
Inc.
snaps the nut ring against the trolley (Figure C).
Spring
Trolley
• By hand, thread the spring trolley
nut on
the Nut
This extends the spring for optimum belt tension.
threaded shaft until it is finger 1/25/96
tight against the
trolley (Figure A). Do not use any tools.
Figure C
• Insert a screwdriver tip into one of the nut ring
Trolley
Nut Ring
Trolley
Nut Ring
slots and brace it firmly against the trolley
(Figure B).
Spring
Trolley Nut
BEFORE
1"
6
AFTER RELEASE
1-1/4"
ASSEMBLY STEP 3
WARNING
Attach the Belt Cap Retainer
Serious injury can result if fingers become
entangled in moving opener sprocket. Attach
sprocket cover securely. Never operate opener
while your hand is near the opener sprocket.
• Position the belt cap retainer over the opener
sprocket so the two holes in cap align with the two
holes in mounting plate. Attach with #8x3/8" hex
screws provided.
Hex Screws
# 8 x 3/8"
Belt Cap
Retainer
Opener Sprocket
Mounting Plate
Hardware Shown Actual Size
Belt
Hex Screw
#8 x 3/8"
You have now finished assembling your garage door opener. Please read the following
warnings before proceeding to the Installation section.
IMPORTANT INSTALLATION INSTRUCTIONS
WARNING
WARNING
To reduce the risk of severe injury or death to persons:
1.
READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS
2. Install only on a properly balanced and lubricated garage door. An improperly balanced door
could result in severe injury or death. Repairs to cables, spring assemblies and other hardware
must be made by a professional service person before installing opener.
3. Disable all locks and remove all ropes connected to the garage door before installing the opener.
Ropes connected to a garage door can cause entanglement and death.
4. If possible, install door opener 7 feet or more above floor with the manual release handle
mounted 6 feet above the floor.
5. Do not connect the opener to power source until instructed to do so.
6. Locate the door control within sight of the door at a minimum height of 5 feet where small
children cannot reach and away from all moving parts of the door.
7. Install the User Safety Instruction Label on the wall adjacent to the control button and the
Maintenance Instruction Label in a prominent location on the inside of the garage door.
8. Upon completion of the installation, the door must reverse when it comes in contact with a oneinch high object or a 2x4 laid flat on the floor.
9. Do not wear watches, rings or loose clothing while installing or servicing an opener. Jewelry or
loose clothing can be caught in the mechanism of the garage door or the opener.
7
Installation Section: Pages 8 – 23
Installation Step 1
WARNING
Determine Header Bracket Location
If the header bracket is not rigidly fastened to
a structural support on the header wall or
ceiling, the safety reverse system may not
work properly (see page 26). The door might
not reverse when required, and could cause
serious injury or death.
The garage door springs, cables, pulleys,
brackets and their hardware are under extreme
tension. Do not attempt to loosen, move or
adjust them yourself. Serious personal injury
or death could result. Call for garage door
service.
Installation procedures vary according to
garage door types. Follow the instructions
which apply to your door.
SECTIONAL Doors and One
Piece Door With Track
Header
Wall
Finished
Ceiling
Vertical
Guideline
2x4
Structural
Supports
• Close the door and mark the inside
vertical centerline of the garage door.
• Extend the line onto the header wall
above the door.
Remember, you can fasten the
header bracket within 2 feet of the
left or right of the door center only if
a torsion spring or center bearing
plate is in the way; or you can attach
it to the ceiling (refer to page 10)
when clearance is minimal.
If you need to install the header bracket
on a 2x4 (on wall or ceiling), use lag
screws (not supplied) to securely fasten
the 2x4 to structural supports as shown
here and on page 9.
Vertical
Guideline
Ceiling
• Open your door to the highest
point of travel as shown. Draw
an intersecting horizontal line
on the header wall 2" above
the high point. This height will
provide travel clearance for the
top edge of the door.
Header
Wall
2"
Header
Wall
2"
Track
Highest Point
of Travel
Highest Point
of Travel
Door
Door
Sectional door
with curved track
Proceed to Step 2, page 10.
8
Track
One-piece door with
horizontal track
ONE-PIECE Door Without Track
Read the Safety Instructions on page 8. They also apply to doors without tracks.
Unfinished
Ceiling
Header Wall
Vertical
Centerline
• Close the door and mark the
inside vertical centerline of
your garage door. Extend the
line onto the header wall
above door.
If headroom clearance is
minimal, you can install the
header bracket on the ceiling.
See page 10.
• If you need to install the
header bracket on a 2x4 (on
wall or ceiling), use lag screws
(not supplied) to securely
fasten the 2x4 to structural
supports as shown.
2x4
Structural Supports
2x4
Header Support
Vertical
Centerline of
Garage Door
OPTIONAL CEILING MOUNT
FOR HEADER BRACKET
Header Wall
Header
Wall
Highest Point
of Travel
Highest Point
of Travel
Distance
Door
Jamb
Hardware
Distance
Door
Pivot
One-piece door without track
jamb hardware
One-piece door without track
pivot hardware
• Open your door to the highest point of travel as
shown. Measure the distance from the top of the
door to the floor. Subtract the actual height of the
door. Add 8" to the remainder. (See Example).
• Close the door and draw an intersecting horizontal
line on the header wall at the determined height.
If the total number of inches exceeds the height
available in your garage, use the maximum
height possible, or refer to page 10 for ceiling
installation.
EXAMPLE
Distance from top of door
(at highest point of travel) to floor...........................92"
Actual height of door .............................................-88"
Remainder................................................................4"
Add .........................................................................+8"
Bracket height on header wall ..............................=12"
(Measure UP from top of CLOSED door.)
Proceed to Step 2, page 10.
9
You can attach the header bracket either to the
wall above the garage door, or to the ceiling.
Follow the instructions which will work best for
your particular requirements.
Installation Step 2
Install the Header Bracket
Fasten the Header Bracket to the Wall
Mounting New Header Bracket
• Center
the bracket
on Bracket
the -vertical
• Mark either set of bracket holes (do not use the
10/16/91
- 10/26/91
4/5/92guideline with
Mounting
New
Header
the bottom edge of the bracket on the horizontal
holes designated for ceiling mount). Drill 3/16" pilot
10/16/91
- 10/26/91 - 4/5/92
line as shown (with the arrow pointing toward the
holes and fasten the bracket securely to a structural
ceiling).
support with the hardware provided.
Header
Wall
Vertical
Center
P
Line
U
Y
NL
TO
UN
G
MO
IN
EIL
C
Header
Wall
Y
NL
TO
UN
CE
G
ILIN
MO
HeaderUP
Bracket
2x4
Structural
Support
Wall
Mounting Holes
Vertical
Center
Line
Wall
Mounting Holes
Lag Screws
5/16"x9x1-5/8"
Lag Screws
5/16"x9x1-5/8"
CEILING MOUNT ONLY
CEILING MOUNT ONLY
UP
Header
Bracket
2x4
Structural
Support
UP
Door
Spring
Door
Spring
2"
2"
The nail hole is for positioning
only. You must use lag screws to
the header bracket.
The nail holemount
is for positioning
Optional
only. You must use lag screws to
Wall Mounting
mount the header bracket.
Holes
Optional
Wall Mounting
Holes
Garage
Door
Garage
DoorVertical
Highest
Point of Travel
(of Garage Door)
Highest
Point of Travel
(of Garage Door)
Vertical
Center
Line
Hardware Shown Actual Size
Center
Line
Lag Screw
5/16"-9 x 1-5/8"
Fasten the Header Bracket to the Ceiling
• Extend the vertical guideline onto the ceiling as
shown.
• Center the bracket on the vertical mark, no more than
6" from the wall. Make sure the arrow is pointing
toward the wall. The bracket can be mounted flush
against the ceiling when clearance is minimal.
• Mark holes designated for ceiling mount only. Drill
3/16" pilot holes and fasten bracket securely to a
structural support with the hardware provided.
Finished
Ceiling
Finished
Ceiling
Vertical
Center Line
Vertical
Header Center Line
Bracket
Header
6" Maximum
Bracket
UP
UP
6" Maximum
Door
Spring
Ceiling Mounting Holes
Ceiling Mounting Holes
CEILING MOUNT ONLY
Door
Spring
Lag Screws
5/16"x9x1-5/8"
Lag Screws
5/16"x9x1-5/8"
CEILING MOUNT ONLY
UP
Header
Wall
UP
Garage
Door
The nail hole is for positioning only.
You must use lag screws to mount
header bracket.
The nail hole is forthe
positioning
only.
You must use lag screws to mount
the header bracket.
Garage
Door
10
Vertical Header
Center LineWall
Vertical
Center Line
Installation Step 3
Attach the T-rail to the Header Bracket
• Position the opener
the garage floor
belowInc.
the
The on
Chamberlain
Group,
header bracket. Use packing material as a
protective base.Liftmaster Synchro Drive
Attach
Teeway
Rail
to Header
Brack
If the door spring
is in the
you'll
need help.
Have someone 5/16/92
hold the opener securely on a
temporary support to allow the T-rail to clear the
spring.
• Position the belt pulley bracket against the header
bracket.
• Align the bracket holes and join with a clevis pin as
shown.
• Insert a ring fastener to secure.
Header Wall
Header
Bracket
Belt Pulley
Bracket
Ring Fastener
T-rail
Header Bracket
Clevis Pin
5/16"x2-3/4 "
Belt Pulley
Bracket
T-rail
Garage
Door
SE
EA
CR
IN UP EL
AV
SE
TR
EA N
CR W
IN DO EL
AV
TR
Temporary
Support
Hardware Shown Actual Size
Clevis Pin
5/16" x 2-3/4"
Ring Fastener
11
Installation Step 4
CAUTION
Position the Opener
To prevent damage to steel, aluminum,
fiberglass or glass panel doors, do not rest the
opener on the door without using a 2x4.
Follow instructions which apply to your door
type as illustrated.
SECTIONAL Door & ONE-PIECE Door with Track
A 2x4 laid flat is convenient for setting an ideal
door-to-T-rail distance.
• Raise the opener onto a stepladder.
You will need help at this point if the ladder is
not tall enough.
• Open the door all the way and place a 2x4 laid flat
on the top section beneath the T-rail.
If the top panel hits the trolley when you raise
the door, pull down on the trolley release arm to
disconnect the inner and outer sections. The
trolley can remain disconnected until Step 12 is
completed.
T-rail
2x4
Door
Stepladder
Trolley
Release Arm
Trolley
ONE-PIECE Door without Track
Header
Bracket
• With the door fully open and parallel to the floor,
measure the distance from the floor to the top of
the door.
• Using a stepladder as a support, raise the opener
to the same distance as the door from the floor (it
will be at a slight angle as shown).
• The top of the door should be level with the top of
the opener. Do not position the opener more than
2" above this point.
Top of Opener
Top of Door
Stepladder
12
The Chamberlain Group, Inc.
Installation Step 5
WARNING
Hang Opener Chassis
Hang the Opener
Synchro
Drive
The opener could Liftmaster
fall and injure
someone
if it(Belt)
is not properly secured.
3/13/92 Fasten the opener
securely to structural supports of the garage.
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.
• Measure the distance from each side of the opener
to the
structural
The Chamberlain
Group,
Inc.support.
• Cut both pieces of the hanging bracket to required
lengths.
Liftmaster Combination
• Drill 3/16" pilot holes in the structural supports.
5/23/92
• Attach one end of each bracket to a support with
5/16" - 18x1-7/8" lag screws.
• Fasten the opener to the hanging brackets with
5/16" - 18x7/8" screws, lock washers and nuts.
• Check to make sure the T-rail is centered over the
door (or in line with the header bracket if the
bracket is not centered above the door).
• Remove the 2x4. Operate the door manually. If the
door hits the rail, raise the header bracket.
Figure 1
CAUTION
Structural
Supports
Lag Screws
5/16"-18x1-7/8
Measure
Distance
5/16"-18x7/8"
Hex Screws
5/16" Lock Washers
5/16"-18 Nuts
Figure 2
Grease the top and underside of the
E
rail surface where the trolley
AS
RE
IL G 3A4
RA
slides. A tube of grease is
.8
O
N
supplied.
— FINISHED CEILING —
Bracket
(Not Supplied)
Hidden
Support
Lag Screws
5/16"-18x1-7/8"
Hardware Shown Actual Size
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
Lag Screw
5/16"-18x1-7/8"
Hex Screw
5/16"- 18 x 7/8"
Nut 5/16" - 18
Lockwasher 5/16"
13
WARNING
Installation Step 6
WARNING
Install the Multi-Function
Door Control Panel
Children operating or playing with a garage
door opener can injure themselves or others.
The garage door could close and cause
serious injury or death. Install the door control
(or any additional push buttons) out of the
reach of children and away from all moving
parts of the door and door hardware, but
where the garage door is visible. Do not allow
children to operate the push button(s) or the
remote control transmitter(s).
A moving garage door could injure someone
under it. Activate the opener only when the
door is properly adjusted, you can see it clearly,
and there are no obstructions to door travel.
• Strip 1/4" of insulation from one end of the bell
wire; connect the wire to the two screw terminals
on the back of the door control by color: white to 2
and white/red to 1.
• Locate the door control within sight of the door
at a minimum height of 5 feet where small
children cannot reach, and away from all
moving parts of the door and door hardware.
Fasten the Multi-Function Door Control securely
with 6ABx1" screws. If installing into drywall, drill
5/32" holes and use the anchors provided.
• Run the bell wire up the wall and across the ceiling
to the opener. Use insulated staples to secure the
wire in several places. Be careful not to pierce the
wire with a staple, creating a short.
• Receiver terminal screws and the antenna are
located on the right panel of the opener. Position
the antenna wire as shown.
• Then connect the bell wire to the opener terminal
screws: white to 2 and white/red to 1.
• Remember to affix the User Safety Instruction
label to the wall near the door control, and the
Instruction
label in a prominent
TheMaintenance
Chamberlain
Group, Inc.
location on the inside of the garage door.
Liftmaster Belt Drive CDO
If the label adhesive will not adhere to your garage
Install
Wall Control
wall surface
(or becomes loose with time) use tacks
to secure
the label alongside the door control.
3/5/92
- 3/13/92
Page 28 explains how to operate the opener using
the lighted push button and the Lock & Light
features available on the Multi-Function Door
Control Panel.
Do NOT connect the power and operate the
opener at this time. The trolley will travel to the
full open position but will not return to the
close position until the sensor beam is
connected and properly aligned.
See Safety Reversing Sensor Instructions
beginning on page 17.
Outside Keylock Accessory Connections
To opener terminal screws: white to 2; white/red to 1
Multi-Function
Door Control Panel
Terminal Screws
RED
WHITE
1
2
Hardware Shown Actual Size
6AB x 1" Screw
Multi-Function Door Control
Dry Wall Anchors
Insulated
Staples
Opener
Terminal Screws
Lock Button
LOCK
LIGHT
TO PROGRAM RECEIVER CODE
FOR EACH REMOTE CONTROL
Light Button
1
2
3
1. Press and HOLD remote control
transmitter push button.
2. Press receiver code button. The opener
light will flash once.
3. Release transmnitter button. Opener
has learned code.
TO ERASE ALL RECEIVER CODES
9
1. Press and HOLD receiver code button.
Green indicator light alongside will turn
ON.
2. When light turns OFF (about 6
seconds) ALL codes are erased from
opener memory.
Door Control
Button
Multi-Function
Door Control Panel
1
7
This device complies
with FCC Rules Part
15. Operation of this
device is subject to the
following conditions:
1. This device may
not cause harmful
interference. 2. This
device must accept
any interference
that may be received,
including interference
that may cause
undesired operation.
PAT. #RE29,525; 4,750,201; 4,806,930 Other Patents Pending.
Right Panel
of Opener
14
3
9
1
7
3
5
5
KG
KG
WARNING: To reduce the risk of severe injury
or death by entrapment, when adjusting either
the force or limits of travel controls ensure that
the door reverses on a 1 inch object (or a 2 x 4
board laid flat). See instructions for proper
adjustment procedure.
AVERTISSEMENT: Pour réduire les risques de
blessures mortelles par happement, après tout
réglage de la force de déclenchement ou des
seuils de fin de course s'assurer que le sens de
la course s'inverse lorsque la porte entre en
contact avec un object de 13 mm (1 po) de
hauteur (ou un madrier de 2 x 4 de section, à
plat) posé sur le sol. Effectuer les reglages
selon les procédures décrites dans la notice.
PART NO:
Nº DE PIÈCE:
D.O.C. CERT. NO.
DATE:
M.D.C. CERT. NO.
132C2105-1
Antenna
Installation Step 7
Install the Lights and the Lenses
• Install a 75 watt maximum light bulb in each
socket. The lights will turn ON and remain lit for
approximately 4-1/2 minutes when power is
connected. Then the lights will turn OFF.
• If the bulbs burn out prematurely due to vibration,
replace them with "Garage Door Opener" bulbs.
• Slide lenses into guides as shown. Snap bottom
tabs into lens slots.
• For convenience, the lenses may be installed
after Adjustment Step 4 on page 26.
• Reverse the procedure to remove the lenses.
Lens
Guide
75 Watt Max.
Light Bulb
Lens Tab
75 Watt Max.
Light Bulb
Lens Slot
Lens Tab
Installation Step 8
WARNING
Attach the Manual Release
Rope and Handle
Do not use the red handle to pull the door
open or closed. The rope knot could become
untied and you could fall. Use the manual
release only to disengage the trolley and, if
possible, only when the door is closed.
Garage doors are heavy. If the door is open
when the handle is pulled, the door could
close inadvertently if it is not properly
balanced. Serious injury may result to persons
under the door. Make sure the doorway is clear
of persons and obstructions before pulling
handle when door is open.
Overhand
Knot
Trolley
• Thread one end of the rope through the hole in the
top of the red handle so "NOTICE" reads right side
up as shown. Secure with an overhand knot.
The knot should be at least 1" from the end of the
rope to prevent slipping.
• Thread the other end of the rope through the hole in
the release arm of the outer trolley.
• Adjust rope length so the handle is 6 feet above the
floor. Secure with an overhand knot .
If it is necessary to cut the rope, heat seal the cut
end with a match or lighter to prevent unraveling.
Trolley
Release Arm
Rope
NOT
ICE
Overhand
Knot
Manual
Release Handle
15
Installation Step 9
WARNING
Electrical Requirements
To prevent electrocution or fire , installation
and wiring must be in compliance with local
electrical and building codes.
To reduce the risk of electric shock, your garage
door opener has a grounding type plug with a third
grounding pin. This plug will only fit into a grounding
type outlet.
If the plug doesn't fit into the outlet you have,
contact a qualified electrician to install the proper
outlet.
Right
Wrong
To avoid installation difficulties,
do not run the opener at this time
• Do not change the plug in any way.
• Do not use a 2-wire adapter.
• Do not use an extension cord.
If permanent wiring is required by your local code, refer to the following procedure:
WARNING
To prevent electrocution , remove power
from the garage door opener and from the
circuit you plan to use for the permanent
connection.
To make a permanent connection through the 7/8"
diameter hole in the top of the opener (according to
local code):
• Remove the opener cover screws and set the
cover aside.
• Remove the attached 3-prong cord.
• Connect the black (line) wire to the screw on the
brass terminal; the white (neutral) wire to the
screw on the silver terminal; and the ground wire
to the green ground screw. The opener must be
grounded.
• Reinstall the cover.
Permanent Wiring
Connection
Ground Tab
Green
Ground Screw
Ground Wire
Black
Wire
White Wire
To avoid installation difficulties,
do not run the opener at this time
16
BlackWire
The Protector System ®
Information you'll need before you begin the installation of the safety reversing sensor.
The safety reversing sensor must be connected
and aligned correctly before the garage door
opener will move in the down direction. This is a
required safety device and cannot be disabled.
WARNING
Without a properly working safety reversing
sensor, persons (particularly children) could be
injured or killed by a closing garage door. Read
and follow all instructions.
To protect small children, install the safety
reversing sensor so that the beam will be no
higher than 4"-6" above the garage floor.
Disconnect power to the garage door opener
before installing the safety reversing sensor.
Installation procedures are the same for sectional
and one-piece doors.
— Right Side of Garage —
— Left Side of Garage —
Sensor
Sensor Beam
Unit
4-6" max.
above floor
Sensor
Sensor
Beam
Unit
4-6" max.
above floor
Invisible Light Beam
Protection Area
Figure 1
Facing the door from inside the garage
The brackets must be securely fastened to a solid
surface such as the studs on either side of the door,
or add a piece of wood at each location if installing in
masonry construction.
The invisible light beam path must be unobstructed.
No part of the garage door (or door tracks, springs,
hinges, rollers or other hardware) can interrupt the
beam while the door is closing. If it does, use a piece
of wood to build out each sensor mounting location to
the minimum depth required for light beam clearance.
Be sure power to the opener is disconnected.
The sending eye transmits an invisible light beam to
the receiving eye. The units can be installed on
either side of the garage door as long as the sun
never shines directly into the receiving eye lens.
Look at the label on the connector end of each case
to identify the sensors.
The brackets must be connected and fastened so
that the sending and receiving eyes face each other
as shown in Figure 1.
If an obstruction breaks the light beam while the
garage door is closing, the door will stop and
reverse to full open position and the opener lights
will flash for 5 seconds.
17
Figure 2
Installation Step 10
Garage WALL or DOOR TRACK Installation
Install the Safety Reversing Sensor
(Receiving and Sending Eyes)
Mounting Bracket
With Square Holes
Figures 2, 3 and 4 show recommended assembly
of bracket(s) and "C" wrap based on the wall
installation of the sensors on each side of the
garage door as shown on page 17, or on the garage
door tracks themselves.
Figures 5 and 6 are variations which may fit your
installation requirements better. Make sure the
wraps and brackets are aligned so the sensors
will face each other across the garage door.
"C" Wrap
#10-32x3/8"
Screws
#10 - 32
Lock Nuts
Figure 3
Garage WALL Installation
1/4 x 1-1/2"
Lag Screws
1/4-20 x 1/2" Carriage Bolts
(with square shoulder)
Inside
Garage
Wall
Garage Wall or Door Track Installation
Procedure
• Fasten the "C" wraps to the mounting brackets
having square holes, using the hardware shown in 2.
Garage Wall Installation Procedure
• Connect each assembly to a slotted bracket, using
the hardware shown in 3. Note alignment of
brackets for left and right sides of the door.
• Finger tighten the lock nuts.
• Use bracket mounting holes as a template to locate
and drill (2) 3/16" diameter pilot holes on both sides
of the garage door, 4"-6" above the floor but not
exceeding 6". (See warning on page 17.)
• Attach bracket assemblies with 1/4"x1-1/2" lag
screws as shown in 3.
• Adjust right and left side bracket assemblies to the
same distance out from mounting surface. Make
sure all door hardware obstructions are cleared.
Tighten the nuts securely.
"C" Wrap
Mounting Bracket
with Slot
Mounting Bracket
with Square Holes
1/4" - 20
Lock Nuts
Figure 4
Garage DOOR Track Installation
1/4 " Lock Nuts
Inside
Garage
Wall
Garage
Door Track
Mounting Bracket
with Square Holes
Drill 3/8"
Holes
"C" Shaped
Wrap
Garage Door Track Installation Procedure
Discard slotted bracket. Drill 3/8" holes in each track
and fasten securely with hardware as shown in 4.
1/4-20 x 1/2"
Carriage Bolts
Hardware Shown Actual Size
#10 x 32
Lock Nut
#10 - 32 x 3/8"
Screw
Figure 5
1/4 x 1-1/2"
Lag Screw
Staples
Figure 6
Alternate Wall Mount
Inside
Garage
Wall
1/4" - 20 x 1/2"
Carriage Bolts
1/4" - 20
Lock Nut
Alternate Floor Mount
Inside
Garage
Wall
Mounting Bracket
with Slot
Indicator Light
Sensor
Mounting Bracket
with Square Holes
Mounting Bracket
with Square Holes
"C" Wrap
"C" Wrap
Sensor
Mounting Bracket
with Slot
Attach with
concrete anchors
(not provided)
Indicator Light
Garage
Floor
Garage
Floor
18
• Center each sensor unit in a "C" wrap with lenses
pointing toward each other across the door (see
Figure 7).
• Secure sensors with the hardware shown. Finger
tighten the wing nut on the receiving eye to allow
for final adjustment. Securely tighten the sending
eye wing nut.
Figure 7
Wing
Nut
"C" Wrap
Indicator
Light
Sensor
with Wire
1/4-20 x 1-1/2"
Hex Bolt
• Run the wires from both sensors to the opener.
Use insulated staples to secure wire to wall and
Trouble Shooting
ceiling.
1. If the sending eye indicator light does not glow
• Strip 1/4" of insulation from each set of wires.
steadily after installation, check for:
Separate white and white/black wires sufficiently to
• Electric power to the opener.
connect to the opener terminal screws: white to 2
• A short in the white or white/black wires. These
and white/black to 3.
can occur under staples or at screw terminal
Aligning the Safety Sensors
connections.
• Plug in the opener. Green indicator lights in both
• Incorrect wiring between sensors and opener.
the sending and receiving eyes will glow steadily if
• An open wire (wire break).
wiring connections and alignment are correct.
2. If the sending eye indicator light glows steadily but
The sending eye indicator light will glow regardless
the receiving eye indicator light doesn't:
of alignment or obstruction. If the indicator light is
off, dim or flickering in the receiving eye (and the
• Check alignment.
invisible light beamm path is not obstructed),
• Check for an open wire to the receiving eye.
is required.
Thealignment
Chamberlain
Group, Inc.
3. If the receiving eye indicator light is dim, realign
• LoosenSensor
the sending
eyeWrap
wing nut
and
re-adjust,
Attaching
to "C"
and
Wires
to Operator either sensor.
aiming directly at the receiving eye. Lock in place.
NOTE: When the invisible beam path is obstructed or
Liftmaster Synchro Drive
• Loosen the receiving eye wing nut and adjust
misaligned while the door is closing, the door will
5/19/92
sensor vertically and/or horizontally until it receives
reverse. If the door is already open, it will not close.
the sender’s beam. When the green indicator light
The opener lights will flash 10 times. (If bulbs are not
glows steadily, tighten the wing nut.
installed, 10 clicks are audible.) See page 17.
Hardware Shown Actual Size
1/4-20 x 1-1/2"
Hex Bolt
Bell Wire
Wing Nut
Connect Wire to
Opener Terminals
Finished
Ceiling
Bell Wire
Door Control
Connections
(dotted line)
Sensor
Connections
1
2
3
OPENER TERMINAL SCREWS
Sensor
Sensor
Invisible Light Beam
Protection Area
19
Installation Step 11
CAUTION
Fasten Door Bracket
To prevent damage to steel, aluminum,
fiberglass or glass panel doors, always
reinforce the inside of the door both vertically
and horizontally with an angle iron.
Follow instructions which apply to your door
type as illustrated below or on page 21.
A horizontal brace should be long enough to be secured to 2 vertical supports. A vertical brace should
cover the height of the top panel.
The illustration shows one piece of angle iron as the horizontal brace. For the vertical brace, 2 pieces of
angle iron are used to create a "U"-shaped support. The best solution is to check with your garage door
manufacturer for an opener installation, door reinforcement kit.
SECTIONAL Door Installation Procedure
Header
Bracket
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, aluminum, steel,
doors with glass panel, etc).
Figure 1
Vertical
Reinforcement
Door
Bracket
Location
Lock Washer
5/16"
Carriage Bolt
5/16"-18x2-1/2"
Vertical
Guideline
Door
Bracket
Vertical
Guideline
Nut
5/16"-18
Figure 2
Inside Edge
of Door or
Reinforcement Board
Door
Bracket
• Center the door bracket on the previously marked
vertical guideline used for the header bracket
installation.
• Position the bracket on the face of the door within
the following limits:
A) The top edge of the bracket 2"-4" below the top
edge of the door.
B) The top edge of the bracket directly below any
structural support across the top of the door.
• Mark and drill 5/16" left and right fastening holes.
Secure the bracket as shown in Figure 1 if there is
vertical reinforcement.
If your installation doesn't require vertical reinforcement but does need top and bottom fastening holes
for the door bracket, position the door plate over the
door bracket as shown in Figure 2. Fasten securely
with hardware shown in Figure 1.
Door Bracket
Plate
Hardware Shown Actual Size
Nut 5/16" - 18
Lockwasher 5/16"
Carriage Bolt
5/16"-18 x 2-1/2"
20
All ONE-PIECE Door Installation Procedure
Please read and comply with the warnings and reinforcement instructions on page 20.
They apply to one-piece doors also.
Header Wall
— Finished Ceiling —
2x4 Support
Header
Bracket
Door
Bracket
Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fiberglass, aluminum, steel,
door with glass panel, etc.).
Optional
Placement
of Door
Bracket
Vertical
Centerline of
Garage Door
Nut
5/16"-18
Door
Bracket
Lock Washer
5/16"
Top of Door
(Inside Garage)
Top Edge
of Door
Optional
Placement
Carriage Bolt
5/16"-18x2-1/2"
For a door with no
exposed framing or for
the optional installation,
use 5/16"x1-1/2" lag
screws (not supplied) to
fasten door bracket.
• Center the bracket on the top of the door, in line
with the header bracket as shown. Mark holes.
• Drill 5/16" pilot holes and fasten the door bracket
with hardware supplied.
If the door has no exposed framing, drill 3/16" pilot
holes and fasten the bracket with 5/16"x1-1/2" lag
screws (not supplied) to the top of the door.
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.) Drill 3/16" pilot holes and substitute
5/16"x1-1/2" lag screws (not supplied) to fasten
the bracket to the door.
Hardware Shown Actual Size
Nut 5/16" - 18
Lockwasher 5/16"
Carriage Bolt
5/16"-18 x 2-1/2"
21
Installation Step 12
Connect Door Arm to Trolley
Follow instructions which apply to your door
type as illustrated below and on page 23.
SECTIONAL Doors Only
Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley
from the inner trolley. Slide the outer trolley back (away from the door) about 2" as shown in Figures 1-3.
Figure 1:
• Fasten straight door arm section to outer trolley
with a clevis pin. Secure the connection with a ring
fastener.
• Fasten curved section to the door bracket in the
same way as shown.
Figure 2:
• Bring arm sections together. Find two pairs of holes
that line up and join sections. Select holes as far
apart as possible to increase door arm rigidity.
Inner Trolley
Outer Trolley
Lock
Washers
5/16"
Clevis
Pin
Ring
Fastener
Rope
Manual
Release
Handle
Nuts
5/16"-18
Door
Bracket
Screws
5/16"-18x7/8"
Straight
Door Arm
Door Bracket
Curved
Door Arm
Clevis Pin
Figure 1
Figure 2
Hole Alignment Alternative
Figure 3:
• If holes in curved arm are above holes in straight
arm, disconnect straight arm. Cut about 6" from
the solid end. Reconnect to trolley with cut end
down as shown.
• Bring arm sections together.
• Find two pairs of holes that line up and join with
screws, lock washers and nuts.
Lock
Washers
5/16"
Nuts
5/16"-18
Hardware Shown Actual Size
Screws
5/16"-18x7/8"
Nut 5/16" - 18
Lockwasher 5/16"
Ring Fastener
Cut This End
Hex Screw
5/16"- 18 x 7/8"
Figure 3
Clevis Pin
5/16" x 1"
Proceed to Adjustment Step 1, page 24. Trolley will re-engage automatically when the opener is operated.
22
All ONE-PIECE Doors
Door
Bracket
Assemble the Door Arm:
• Fasten the straight and curved door arm sections
together to the longest possible length (with a 2 or
3 hole overlap).
• With the door closed, connect the straight door
arm section to the door bracket with a clevis pin.
• Secure with a ring fastener.
Ring
Fastener
Nuts
5/16"-18
Lock
Washers
5/16"
Clevis Pin
Straight
Arm
Screws
5/16"-18x7/8
Curved
Door Arm
On one-piece doors, before connecting the door arm to the trolley the travel limits must be adjusted. Limit adjustment screws are located on the left side panel as shown on page 24. Follow adjustment procedures below.
Fully Closed
Trolley
Fully Open
Trolley
Door Arm
Connector Hole
Door Arm
Closed
Door
Open Door
Door Arm
Connector Hole
Door with
Backward Slant
Door Arm
Adjustment Procedures for One-Piece Doors
Open Door Adjustment:
Decrease UP limit
• Turn the UP limit adjustment screw counterclockwise 5 1/2 turns.
• Press the Door Control push bar. The trolley will
travel to the fully open position.
• Manually raise the door to the open position
(parallel to the floor), and lift the door arm to the
trolley. The arm should touch the trolley just in
back of the door arm connector hole. Refer to the
fully open trolley/door arm positions in the
illustration. If the arm does not extend far enough,
adjust the limit further. One full turn equals 2" of
trolley travel.
Closed Door Adjustment:
Decrease DOWN limit
• Turn the DOWN limit adjustment screw clockwise
5 complete turns.
• Press the Door Control push bar. The trolley will
travel to the fully closed position.
• Manually close the door and lift the door arm to the
trolley. The arm should touch the trolley just ahead
of the door arm connector hole. Refer to the fully
closed trolley/door arm positions in the illustration. If
the arm is behind the connector hole, adjust the limit
further. One full turn equals 2" of trolley travel.
Connect the door arm to the trolley.
• Close the door and join the curved arm to the connector hole in the trolley with the remaining clevis pin. It may
be necessary to lift the door slightly to make the connection.
• Secure with a ring fastener.
• Run the opener through a complete travel cycle. If the door has a slight "backward" slant in full open position
as shown in the illustration, decrease the UP limit until the door is parallel to the floor.
23
Adjustment Section: Pages 24 – 26
Adjustment Step 1
WARNING
Adjust the UP and DOWN Limits
Improper adjustment of the travel limits will
interfere with the proper operation of the safety
reverse system. The door might not reverse
when required and could seriously injure or kill
someone under it. Test the safety reverse
system following all adjustments to the travel
limits. See page 26.
Do not make any limit adjustments until the
Safety Reversing Sensors are completely
installed.
Limit adjustment settings regulate the points at
which the door will stop when moving up or down.
The door will stop in the up direction if anything
interferes with door travel. The door will reverse in
the down direction if anything interferes with the
door travel (including binding or unbalanced doors).
To operate the opener, press the Door Control push
bar. Run the opener through a complete travel
cycle.
• Does the door open and close completely?
• Does the door stay closed and not reverse
unintentionally when fully closed?
If your door passes both of these tests, no limit
adjustments are necessary unless the reversing
test fails (see page 26).
Left Side
Panel
INCREASE INCREASE
UP
DOWN
TRAVEL
TRAVEL
Adjustment procedures are outlined below. Run
the opener through a complete travel cycle after
each adjustment.
Repeated operation of the opener during
adjustment procedures may cause the motor to
overheat and shut off. Simply wait 15 minutes
and try again.
Read the procedures carefully before proceeding to
Adjustment Step 2. Use a screwdriver to make limit
adjustments.
Limit Adjustment Screws
INCREASE INCREASE
DOWN
UP
TRAVEL
TRAVEL
Limit
Adjustment
Label
Limit
Adjustment
Label
How and When to Adjust the Limits
If the door does not open completely
but opens at least five feet
If the opener reverses in fully closed position
Decrease down travel. Turn the DOWN limit adjustment
screw clockwise. One turn equals 2" of travel.
Increase up travel. Turn the UP limit adjustment
screw clockwise. One turn equals 2" of travel.
If door does not open at least 5 feet: Adjust the
UP (open) force as explained in Adjustment Step 2.
If the door reverses when closing and
there is no visible interference to travel cycle
If the opener lights are flashing, the Safety Reversing
Sensor is obstructed. Remove the obstruction.
Test the door for binding: Pull the manual release
handle. Manually open and close the door. If the door
is binding, call for garage door service. If the door is
not binding or unbalanced, adjust the DOWN (close)
force. See Adjustment Step 2.
If the door does not close completely
Increase down travel. Turn the DOWN limit
adjustment screw counterclockwise. One turn
equals 2" of travel.
If door still won't close completely, try lengthening
the door arm. (Page 22.)
If you have adjusted the door arm to the maximum
length and the door still will not close completely,
lower the header bracket. See Installation Step 1,
pages 8/9.
24
Adjustment Step 2
WARNING
Adjust the Force
Too much force on the door will interfere with the
proper operation of the safety reverse system.
The door might not reverse properly when
required and could seriously injure or kill
someone under it. Do not increase the force
beyond the minimum amount required to close
the door. Do not use the force adjustments to
compensate for a binding or sticking garage door.
Test the safety reverse system following all
adjustments to force levels. See page 26.
Force adjustment controls are located on the right
panel of the opener. Force adjustment settings
regulate the amount of power required to open and
close the door.
The door will stop in the up direction if anything
interferes with its travel. The door will reverse in the
down direction if anything interferes with its travel
(including binding or unbalanced doors).
If the forces are set too light, door travel may be
interrupted by nuisance reversals in the down
direction and stops in the up direction. Weather
conditions can affect the door movement, so
occasional adjustment may be needed.
The maximum force adjustment range is 260 degrees,
about 3/4 of a complete turn. Do not force controls
beyond that point. Turn force adjustment controls
with a screwdriver.
Force
Adjustment
Controls
1
3
2
9
1
7
This device complies
with FCC Rules Part
15. Operation of this
device is subject to the
following conditions:
1. This device may
not cause harmful
interference. 2. This
device must accept
any interference
that may be received,
including interference
that may cause
undesired operation.
9
1
7
3
9
3
9
1
7
3
5
5
KG
KG
WARNING: To reduce the risk of severe injury
or death by entrapment, when adjusting either
the force or limits of travel controls ensure that
the door reverses on a 1 inch object (or a 2 x 4
board laid flat). See instructions for proper
adjustment procedure.
AVERTISSEMENT: Pour réduire les risques de
blessures mortelles par happement, après tout
réglage de la force de déclenchement ou des
seuils de fin de course s'assurer que le sens de
la course s'inverse lorsque la porte entre en
contact avec un object de 13 mm (1 po) de
hauteur (ou un madrier de 2 x 4 de section, à
plat) posé sur le sol. Effectuer les reglages
selon les procédures décrites dans la notice.
PART NO:
Nº DE PIÈCE:
D.O.C. CERT. NO.
DATE:
M.D.C. CERT. NO.
132C2105-1
1
7
3
5
5
KG
KG
Right Panel
of Opener
Force Adjustment Label
How and When to Adjust the Forces
Test the DOWN (close) force
Grasp the door bottom when the door is about
halfway through DOWN (close) travel. The door
should reverse. (Reversal halfway through down
travel does not guarantee reversal on a one inch
obstruction. See page 26.) If the door is hard to
hold or doesn't reverse, decrease the DOWN (close)
force by turning the control counterclockwise.
Make 10 degree turn adjustments until the door
reverses normally. After each adjustment, run the
opener through a complete cycle.
Make 10 degree turn adjustments until the door stops
easily. After each adjustment, run the opener through
a complete travel cycle.
If the door doesn't open at least 5 feet
Increase UP (Open) force by turning the control
clockwise. Make 10 degree turn adjustments until
door opens completely. Re-adjust the UP limit if
necessary. After each adjustment, run the opener
through a complete travel cycle.
If the door reverses during the down (close) cycle
and the opener lights aren't flashing
Increase DOWN (close) force by turning the control
clockwise. Make 10 degree turn adjustments until the
door completes a close cycle. After each adjustment,
run the opener through a complete travel cycle. Do
not increase the force beyond the minimum
amount required to close the door.
Test the UP (open) force
Grasp the door bottom when the door is about
halfway through UP (open) travel. The door should
stop. If the door is hard to hold or doesn't stop,
decrease UP (open) force by turning the control
counterclockwise.
25
Adjustment Step 3
WARNING
Test The Protector System ®
Without a properly working safety reversing
sensor, persons (particularly children) could be
seriously injured or killed if trapped by a closing
garage door. Repeat this test once a month.
• Press the remote control push button to open the
door.
• Place the opener carton in the path of the door.
• Press the remote control push button to close the
door. The door will not move more than an inch,
and the opener lights will flash for 5 seconds.
The garage door opener will not close from a
remote if the indicator light in either sensor is off
(alerting you to the fact that the sensor is
misaligned or obstructed).
The garage door can be closed by pressing and
holding the Door Control push bar or button until
down travel is completed.
Professional service is required if the opener
closes the door when the safety reversing
sensor is obstructed.
Safety Reversing Sensor
Adjustment Step 4
Safety Reversing Sensor
WARNING
Test the Safety Reverse System
Failure to test and adjust the safety reverse
system may result in serious injury or death
from a closing garage door. Repeat this test
once a month and adjust as needed.
Test
• Place a one-inch board (or a 2x4 laid flat) on the
floor, centered under the garage door.
• Operate the door in the down direction. The door
must reverse on striking the obstruction.
Adjustment
If the door stops on the obstruction, it is not traveling
far enough in the down direction.
• Increase the DOWN limit by turning the DOWN
limit adjustment screw counterclockwise 1/4 turn.
• Repeat the test.
On a sectional door, make sure limit adjustments
do not force the door arm beyond a straight up
and down position. See the illustration on
page 22.
• When the door reverses on the one-inch board,
remove the obstruction and run the opener through
3 or 4 complete travel cycles to test adjustment.
If the door will not reverse after repeated
adjustment attempts, call for professional
garage door service.
One-Inch board (or a 2x4 laid flat)
1 Inch Obstruction
Important Safety Check
Repeat Adjustment Steps 1–4 after:
• Each adjustment of door arm length, force controls
or limit controls.
• Any repair to or adjustment of the garage door
(including springs and hardware).
• Any repair to or buckling of the garage floor.
• Any repair to or adjustment of the opener.
26
IMPORTANT SAFETY INSTRUCTIONS
WARNING
WARNING
WARNING
WARNING
To reduce the risk of severe injury or death to persons:
The Chamberlain, Group,
Limit/Force CGI
5/26/92
1. READ AND FOLLOW ALL INSTRUCTIONS.
2. Do not permit children either to operate or to play with the opener. Keep remote control in a location
inaccessible to children.
3. Operate opener only when the door is in full view and free from any obstruction. Keep the door in
Inc. sight until it is completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
4. Check safety reversal system monthly. See page 26. The garage door MUST reverse on contact with
a one inch object (or a 2x4 board laid flat) placed on the floor. If an adjustment is made to one of the
controls (either force or limits of travel), the other control may need to be adjusted also, and the
safety reversal system must be checked. Failure to properly adjust the opener may result in severe
injury or death.
5. If possible, use the manual release only when the door is in a closed position. Caution should be
taken whenever the disconnect cord is actuated with the door open. Weak or broken springs may
cause the door to fall rapidly, causing injury or death to persons.
6. KEEP GARAGE DOORS PROPERLY BALANCED. See page 4. An improperly balanced door may not
reverse when required and could result in severe injury or death. Repairs to cables, spring assemblies
and other hardware must be made by a professional garage door person.
7. Disconnect the electric power to the garage door opener before making any repairs or removing the
covers.
CAUTION
CAUTION
8.
SAVE THESE INSTRUCTIONS.
Care of Your Opener
Limit and force adjustment controls
Limit Controls
Force Controls
9
INCREASE
DOWN
TRAVEL
INCREASE
UP
TRAVEL
Adjustment Label
(Located on the left side panel)
The remote control transmitter
The opener must learn the code of any new remote
control. Page 29 explains how to program your
receiver and how to erase all codes if required. Self
service of your receiver and remote controls is not
recommended. If service is needed, call the toll-free
number listed on the back page.
1
7
3
9
1
7
3
5
5
KG
KG
Adjustment Label
(Located on the right side panel)
The transmitter battery
The green test light will glow and the opener will
operate when the remote control is activated, as long
as there is adequate battery power.
If the power indicator light is dim or off, replace the
battery. Also check the test light if transmission range
decreases.
The 12 volt battery should produce power for at least
a year.
Dispose of your old battery properly.
Weather conditions may cause some minor
changes in door operation requiring some readjustments, particularly during the first year of
operation.
Pages 24 and 25 refer to the limit and force
adjustments. Only a screwdriver is required. Follow
the instructions carefully.
Repeat the safety reverse test (page 26) after any
adjustment of limits or force.
Maintenance Schedule
Once a Month
Manually operate door. If it is unbalanced or
binding, call for professional garage door service.
Check to be sure door opens & closes fully.
Adjust limits and/or force if necessary. (See pages
24 & 25.)
Repeat the safety reverse test. Make any
necessary adjustments (See page 26).
Once a Year
Oil door rollers, bearings and hinge.
The opener does not require additional
lubrication.
Do not grease the door tracks.
27
Operation of Your Opener
Activate the opener with any of the following:
• The Remote Control Transmitter. Hold push
button down until the door starts to move.
• The Door Control. Hold push bar down until the
door starts to move.
• The Outside Keylock or Keyless Entry.
(See Accessories)
WARNING
Weak or broken springs could allow an open
door to fall (either rapidly or unexpectedly),
resulting in serious injury, death or property
damage. If possible, use the manual release
rope and handle only when the door is fully
closed.
When the opener is activated with the Safety
Reversing Sensor installed and correctly aligned:
1. If open, the door will close. If closed, the door will
open.
2. If closing, the door will reverse.
3. If opening, the door will stop (allowing space for
entry and exit of pets and for fresh air).
4. If the door has been stopped in a partially open
position, it will close.
5. If obstructed while closing, the door will reverse.
6. If obstructed while opening, the door will stop.
7. The garage door will reverse in the closing cycle
when the invisible beam is broken. If fully open,
the door will not close when the beam is broken.
The sensor has no effect in the opening cycle.
Trolley
Release Arm
Trolley
Manual
Release Handle
(Pull Down)
NO
TIC
E
Manual disconnect
position
If the sensor is not installed, or is not aligned correctly,
the door won't close from any remote control
transmitter. You can close the door with the Door
Control, the Outside Keylock, or Keyless Entry,
however, if you activate them until down travel is
complete. If you release them too soon, the door will
reverse.
The opener lights will blink for 5 seconds when the
safety reversing sensor causes the door to reverse.
Opener Lights will turn on under the following
conditions: When the opener is initially plugged in;
when the power is interrupted; when the opener is
activated. They will turn off automatically after 4-1/2
minutes or provide constant light when the Light
feature is activated. Bulb size is 75 watts maximum.
To open the door
manually:
The door should be fully
closed if possible. Pull
down on the manual
release handle and lift the
door manually. To
reconnect the door to the
opener, press the Door
Control push bar.
The lockout feature
prevents the trolley from
reconnecting automatically.
Pull the manual release
handle down and back
(toward the opener). The
door can then be raised
and lowered manually as
often as necessary. To
disengage the lockout
feature, pull the manual
release handle straight
down. The trolley will
reconnect on the next UP
or DOWN operation.
Trolley
Release Arm
Trolley
Manual
Release Handle
(Pull Down & Back
Towards Opener)
NOTICE
Lockout position
Operation of the Multi-Function Door Control Panel
Lighted Push Bar
Press to open or close the door.
Press again to reverse the door during the closing
cycle or to stop the door while it's opening.
Lock Feature
The Lock feature is designed to prevent operation of
the door from remote controls. However, the door will
open and close from the Door Control push bar, the
Outside Keylock and the Keyless Entry Accessories.
Light Feature
Press the Light button. If the opener light is off, it will
turn on.
If the opener light is on, (even in the 4-1/2 minute
automatic cycle) it will turn off.
But if you use the Light button to turn the light(s) on
and then activate the opener, the light(s) will turn off
after 4-1/2 minutes.
The Light button will not control the opener lights
when the door is in motion.
To Activate:
Press and hold the Lock button for 2 seconds. The
push bar light will flash as long as the Lock feature
is on.
To Turn Off:
Press and hold the Lock button for 2 seconds
again.The push bar light will stop flashing. Normal
operation will resume. The Lock feature will also turn
off whenever the "Smart" button on the opener side
panel is activated.
28
Receiver & Remote Control Programming
NOTICE: To comply with FCC rules, adjustment or modification of this
receiver and/or transmitter are prohibited, except for changing the code
setting or replacing the transmitter battery. THERE ARE NO OTHER
USER SERVICEABLE PARTS.
WARNING
Children operating or playing with a garage
door opener can injure themselves or others.
The garage door could close and cause
serious injury or death. Do not allow children
to operate the door control(s) or remote
control transmitter(s).
A moving garage door could injure or kill
someone under it. Activate the opener only
when you can see the door clearly, it is free of
obstructions, and is properly adjusted.
Your garage door opener receiver and remote
control transmitter have been set at the factory to a
matching code. The door will activate when the
remote control push button is pressed.
Your "Smart" garage door opener will operate with:
• up to four "Smart" remote control transmitters
(with green indicator lights),
• a Keyless Entry System, and
• code switch remote controls with red indicator
lights.
Below are instructions for programming your opener
to match any additional remotes you may purchase.
See available accessories on page 34.
Figure 1
Model 81LM
"Smart"
Single Function Remote Control
To Add a Single Function Remote Control
1. Press and hold the remote push button (Figure 1).
2. Then press and release the "Smart" button on the
right side panel of the opener, Figure 2. The
opener lights will flash once.
3. Release the remote push button.
Now the opener will operate when the remote
control push button is pressed.
If you release the remote control push button
before the opener lights flash, the opener will
not accept the code.
Green Battery
Indicator Light
Push Button
To Change the Selected Push Button
on the Same Remote
If you decide to use a different remote control button
than originally programmed into the opener, you
need to erase all the learned codes and reprogram
each remote used to operate the garage door
opener.
Figure 2
Garage Door Opener
(With "Smart" Button)
1
To Erase all Remote Control Codes:
• Press and hold the "Smart" button on the opener
panel until the indicator light turns off (about 6
seconds). All the codes the opener has learned
will be erased.
• To reprogram, repeat Steps 1 - 3 for each remote
control in use.
3
2
9
1
7
"Smart"
Button
Code programming instructions are also located
on the opener panel.
29
Indicator
Light
3
9
1
7
3
5
5
KG
KG
Having a Problem?
Situation
Probable Cause & Solution
The opener doesn't
operate from either
the door control or
the remote control:
1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light,
check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.)
2. Have you disabled all door locks? Review installation instruction warnings on Page 7.
3. Is there a build-up of ice or snow under the door? The door may be frozen to the
ground. Remove any restriction.
4. The garage door spring may be broken. Have it replaced.
5. Repeated operation may have tripped the overload protector in the motor. Wait
15 minutes. Try again.
Opener operates from 1. Is the door control push bar lit? If not, Remove the bell wire from the opener terminal
remote control, but
screws. Short the red and white terminals by touching both terminals at the same
not from door control:
time with a piece of wire. If the opener runs, check for a faulty wire connection at the
door control, a short under the staples, or a broken wire.
2. Are the wiring connections correct? Review Step 6, page 14.
The door operates
from the door control,
but not from the
remote control:
1. If your model has the Lock feature, turn it off.
2. Is the wall push button flashing? Your opener needs to re-learn a remote control
code. Refer to instructions on the opener panel.
3. Does the battery test light glow when the remote control push button is pressed? If
not, replace the battery.
4. Program the receiver to match the remote control code.
5. Repeat the receiver programming procedure with all remote controls.
The remote control
has short range:
1. Check the battery test light. If the light is dim, replace the battery.
2. Change the location of the remote control in your car.
3. Check to be sure the antenna on the side or back panel of the opener extends fully
downward.
4. Some installations may have shorter range due to a metal door, foil backed
insulation, or metal garage siding.
Opener noise is
disturbing in living
quarters of home:
If operational noise is a problem because of proximity of the opener to the living
quarters, the Vibration Isolator Kit 41A3263 can be installed. This kit was designed to
minimize vibration to the house and is easy to install.
The garage door
opens and closes
by itself:
1. Be sure that all remote control push buttons and battery indicator lights are off.
2. Remove the bell wire from the door control terminals and operate from the remote
control only. If this solves the problem, the door control is faulty (replace), or there is
an intermittent short on the wire between the door control and the opener.
The door doesn't
open completely:
1. If the door has been working properly but now doesn't open all the way, increase the
up force. See page 25.
2. Is something obstructing the door? Remove the obstruction or repair the door.
3. If door opens at least 5 feet, the travel limits may need to be increased. One turn
equals 2 inches of travel. See page 24.
Repeat the safety reverse test after the adjustment is complete.
The door stops but
doesn't close
completely:
Review the travel limits adjustment procedures on page 24.
Repeat the safety reverse test after any adjustment of door arm length, close
force or down limit.
30
Having a Problem? (continued)
Situation
Probable Cause & Solution
The door opens but
won't close:
1. If the opener lights blink, check the safety reversing sensor. See page 19.
2. If the opener lights do not blink and it is a new installation, check the down force.
See Adjustment Step 2, page 25. For an existing installation, see below.
Repeat the safety reverse test after the adjustment is complete.
The door reverses for
no apparent reason
and opener lights
don't blink:
1. Is something obstructing the door? Pull the manual release handle. Operate the door
manually. If it is unbalanced or binding, call for professional garage door service.
2. Clear any ice or snow from the garage floor area where the door closes.
3. Review the force adjustment procedures on page 25.
4. If door reverses in the fully closed position, decrease the travel limits (page 24).
Repeat the safety reverse test after adjustments to force or travel limits. The need
for occasional adjustment of the force and limit settings is normal. Weather
conditions in particular can affect door travel.
The door reverses for
no apparent reason
and opener lights
blink for 5 seconds
after reversing:
Check the safety reversing sensor. Remove any obstruction or align the receiving eye.
See page 19.
The opener lights …
don't turn on:
Replace the light bulbs (75 watts maximum). Use a standard neck garage door opener
bulb if regular bulb burns out.
don't turn off:
Is the Light feature on? Turn it off.
The opener strains
or maximum force is
needed to operate
door:
The door may be out of balance or the springs are broken. Close the door and use the
manual release handle to disconnect the trolley. Open and close the door manually. A
properly balanced door will stay in any point of travel while being supported entirely by
its springs. If it does not, disconnect the opener and call for professional garage door
service. Do not increase the force to operate the opener.
The opener motor
hums briefly, then
won't work:
1. The garage door springs are broken. See above.
2. If the problem occurs on the first operation of the opener, door may be locked. Disable
the door lock. If the belt was removed and reinstalled, the motor may be out of phase.
Remove the belt; cycle the motor to the down position. Observe the drive sprocket.
When it turns in a clockwise direction and stops in the down position, reinstall the belt.
Repeat the safety reverse test after the adjustment is complete.
The opener won't
operate due to
power failure:
1. Use the manual release handle to disconnect the trolley. The door can be opened
and closed manually. When power is restored, press the Door Control push bar and
trolley will automatically reconnect (unless trolley is in lockout position.) See page 28.
2. The Outside Quick Release accessory (for use on garages with no service door)
disconnects the trolley from outside the garage in case of power failure.
31
Repair Parts
Rail Assembly Parts
6
3
1
7
4
2
5
E
AS
RE
IL G 3A4
.8
NO
RA
8
KEY
NO.
PART
NO.
DESCRIPTION
1
2
3
4
5
6
7
8
1A995
41A3588
41B3869-1
109B33
183B99
41A3589
41B4103
83A4
Master link kit
Belt pulley bracket
Complete trolley assembly
Trolley clip
One-piece T-rail
Full belt assembly
Tensioner assembly
Rail grease
Installation Parts
6
2
LOCK
LIGHT
12
C
VD
4
3
5
1
KEY
NO.
PART
NO.
1
2
3
4
41A4202A
10A14
29C128
41A3984-7
5
6
7
8
9
10
41A2828
217A238
12B374-1
12B380-1
41A4353-1
41A4373
11
41B4115
12
13
14
15
16
178B35
178B34
12B483
12B484
12B485
NOT
ICE
DESCRIPTION
9
7
Multi-function door control panel
12V battery
Transmitter visor clip
Remote control case, cover & screw only
(no circuit board)
Manual release rope & handle assy.
2-Conductor bell wire - white & white/red
Door bracket
Door bracket plate
Header bracket w/clevis pin & fastener
Safety sensor kit (receiving and sending
eyes only)
2-Conductor bell wire with connector
white & white/black (2 rolls)
Curved door arm section
Straight door arm section
C-wrap bracket
Square hole bracket
Slotted bracket
NOT SHOWN
41A4116
Safety sensor hardware
41A2770-1
Installation hardware bag (includes
hardware listed on page 4
114A1893
Owner's manual
32
8
T
UN
G
LIN
LY
ON
MO
CEI
UP
11
10
13
14
12
15
16
Repair Parts
Opener Assembly Parts
1
2
4
9
7
3
5
6
8
8
20
10
11
12
3
18 19
9
15
13
16
14
17
5
Brown
Wire
(Down)
Contact
LIMIT SWITCH ASSY.
DN
UP
Drive
Gear
Center Limit
Contact
KEY PART
NO. NO.
1
2
41A4371
41A4885
3
41A2817
4
5
6
41B4245
41C4876
41A4252-6C
7
8
9
41A4888
4A1344
108D34
DESCRIPTION
Belt cap retainer
Gear and sprocket assy.,
Complete with:
Spring washer
Thrust washer
Retaining ring
Bearing plate
Roll pins (2)
Drive gear and worm gear
Helical gear w/retainer and grease
Drive/worm gear kit w/grease
Roll pins (2)
Line cord
Wire harness assembly with plug
Receiver logic board assembly
Complete with Logic board
End panel w/all labels
Light socket
Lens
KEY
NO.
PART
NO.
10
11
12
13
30B363
12A373
41D3150
41C4842
14
15
16
17
18
19
20
41A3583-7
41A2818
41D3452
41C4398A
41A2826-1
41A2822A
41A4889
41A2825
33
(Up)
Contact
Grey
Wire
Yellow
Wire
DESCRIPTION
Capacitor – 1/2 h.p.
Capacitor bracket
Terminal block w/screws
Universal replacement motor &
bracket assembly, Complete with:
Motor, worm, bracket,
bearing assembly, RPM sensor.
Cover
Helical gear & retainer w/grease
Limit switch assembly
RPM sensor assembly
Shaft bearing kit
Interrupter cup assembly
End panel
NOT SHOWN
Opener assembly hardware kit
(includes screws not designated by
a number in illustration.
Accessories Available For Your Opener
Model 1702
Outside Quick Release:
Required for a garage with NO
access door.
Model 60
Outside Keylock:
Opens the garage door
automatically from outside when
remote control is not handy.
Model 1778LM
8 foot Complete Rail:
To allow an 8 foot door to open fully.
Model 1770LM
Model 66LM
Model 81LM
"Smart" Remote Control:
Includes visor clip.
Model 61LM
Single-Function Standard Size
Remote Control:
Includes visor clip.
Model 82LM
2-Channel Remote Control:
Includes visor clip.
Model 83LM
3-Channel Remote Control:
Includes visor clip.
10 foot Complete Rail:
To allow a 10 foot door to open fully.
Keyless Entry:
Enables homeowner to operate
garage door opener from outside
by entering code on specially
designed keyboard.
Wire-In Light Control:
Controls interior or exterior lights.
Wires into the electrical box like a
dimmer switch.
Model 84LM
4-Channel Remote Control:
Includes visor clip.
Model 742LM
Plug-In Light Control:
Controls interior lights. Plugs into a
wall receptacle.
Model 99LM
Security Remote Control:
Operate garage door opener by
entering 2-3-4 or 5 digit code from
backlit keyboard. Includes visor
clip.
1
2
3
4
5
6
7
8
9
0
EN
TE
R
Model 722LM
34
Index
Access Door/Outside Quick Release Accessory........................................................................................31, 34
Electrical Safety Warnings........................................................................................................................7, 16, 27
Garage Door
Testing for balance, binding and sticking...................................................................................................3, 24, 27
Determining high point of travel:
Sectional door.....................................................................................................................................................8
One-piece door ...................................................................................................................................................9
Disabling existing locks......................................................................................................................................3, 7
Force controls
Adjustment procedures.....................................................................................................................................25
Problems that might require force adjustments ..........................................................................................30, 31
Safety warnings ..........................................................................................................................................25, 27
Door hardware .............................................................................................................................3, 7, 8, 14, 27, 28
Maintenance instruction label ..........................................................................................................................7, 24
Reinforcement requirements .....................................................................................................................3, 20, 21
Removing of all ropes ........................................................................................................................................3, 7
Possible door damage ...............................................................................................................................3, 12, 20
Travel limits
Adjustment procedures.....................................................................................................................................24
Problems that might require limit adjustments............................................................................................30, 31
Safety warnings ..........................................................................................................................................24, 27
Manual Release Rope & Handle
Lockout feature ...................................................................................................................................................28
Manual disconnect..............................................................................................................................................28
Safety warnings ..................................................................................................................................7, 15, 27, 28
Opener Terminals
Door control connections ....................................................................................................................................14
Safety reversing sensor connections..................................................................................................................19
Outside Keylock accessory connections ............................................................................................................14
Operational Noise
Sprocket noise ......................................................................................................................................................7
Vibration noise (isolator kit) ................................................................................................................................30
The Protector® System ..................................................................................................................................17, 26
Receiver & Remote Controls
Programming the receiver ..................................................................................................................................29
Erasing all codes ................................................................................................................................................29
Safety warning ....................................................................................................................................................29
Problems with remote control transmitter operation ...........................................................................................30
Safety Reverse Test Procedure..........................................................................................................................26
Testing required..................................................................................................................................7, 26, 30, 31
Safety reverse system problems
Securing header bracket to wall .........................................................................................................................8
Adjusting travel limits ........................................................................................................................................24
Applying excessive force on the door ...............................................................................................................25
Buckling or uneven floor .....................................................................................................................................4
Safety Warnings........................................................2, 3, 6, 7, 8, 12,13, 14, 15, 16, 17, 20, 24, 25, 26, 27, 28, 29
User Instruction Label for Garage Wall .........................................................................................................7, 14
35
LIFT-MASTER SERVICE IS
ON CALL
OUR LARGE SERVICE ORGANIZATION
SPANS AMERICA
INSTALLATION AND SERVICE INFORMATION IS AS
NEAR AS YOUR TELEPHONE SIX DAYS A WEEK.
SIMPLY DIAL OUR TOLL FREE NUMBER:
HOW TO ORDER
REPAIR PARTS
Selling prices will be furnished on request or parts will
be shipped at prevailing prices and you will be billed
accordingly.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE
THE FOLLOWING INFORMATION:
• PART NUMBER
• PART NAME
1-800-528-2817
• MODEL NUMBER
HOURS: (Mountain Std. Time)
6:00 A.M. TO 6:00 P.M. - Monday through Friday
7:00 A.M. TO 3:00 P.M. - Saturday
Closed Sunday
ADDRESS ORDERS TO:
THE CHAMBERLAIN GROUP, INC.
Parts and Service Department
2301 N. Forbes Boulevard, Suite 104
Tucson, Arizona 85745
For professional installation, parts and service,
contact your local LIFT-MASTER/ CHAMBERLAIN
dealer. Look for him in the Yellow Pages, or call our
Service number for a list of dealers in your area.
SERVICE INFORMATION
TOLL FREE NUMBER:
1-800-528-2817
LIFT-MASTER GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY
Chamberlain/Lift-Master (“Seller”) warrants to the first retail purchaser of this product that it is free from defect in materials and/or
workmanship for a period of one year from the date of purchase. The proper operation of this product is dependent on your
compliance with the Owner’s Manual instructions regarding installation, operation, maintenance and testing. Failure to comply
strictly with those instructions will void this warranty in its entirety. Please note that the safety reverse system, in order to
operate properly with your garage door, must be adjusted and periodically tested in accordance with the Owner’s Manual.
If, during the limited warranty period, it appears as though this product contains a defect which is covered by this limited warranty,
CALL OUR TOLL FREE SERVICE NUMBER, BEFORE DISMANTLING THIS PRODUCT, AT (1-800-528-2817). Then send this
product, pre-paid and insured, to our service center for warranty repair. You will be advised of shipping instructions when you call the
toll free service number. Please include a brief description of the problem and a dated proof-of-purchase receipt with any product that
is returned for warranty repair.
Products returned to Seller for warranty repair, which upon receipt by Seller are confirmed to be defective and covered by this limited
warranty, will be repaired or replaced (at Seller’s sole option) at no cost to you and returned pre-paid. Defective parts will be repaired
or replaced with new or factory-rebuilt parts at Seller’s sole option.
THIS LIMITED WARRANTY IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE, AND OF ANY OTHER
OBLIGATIONS OR LIABILITY ON SELLER’S PART. THIS LIMITED WARRANTY DOES NOT COVER NON-DEFECT DAMAGE,
DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE,
MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE, OR ANY ALTERATIONS TO THIS
PRODUCT), LABOR CHARGES FOR DISMANTLING OR REINSTALLING A REPAIRED OR REPLACED UNIT, OR
REPLACEMENT BATTERIES.
UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES
ARISING IN CONNECTION WITH THE USE, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL SELLER’S
LIABILITY FOR BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY EXCEED THE
COST OF THE PRODUCT COVERED HEREBY. NO PERSON IS AUTHORIZED TO ASSUME FOR US ANY OTHER LIABILITY IN
CONNECTION WITH THE SALE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or
exclusion may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary
from state to state.
LIMITED WARRANTY ON MOTOR - MODEL 1280
The motor is fully warranted for the lifetime of the product to the first-time purchaser.
114A1945D-xxx
© 1996, The Chamberlain Group, Inc.
All Rights Reserved
Printed in Mexico