®
TM
Garage Door Opener
Model 1270LMC
- 1/2 HP -
For Residential Use Only
Owner's Manual
■ 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 of your
opener.
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You'll Need Tools
During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below.
Pencil
Carpenter's
2
1
Level
Hack Saw
Tape Measure
Wire Cutters
Drill
Claw Hammer
3/16", 5/16" and
5/32" Drill Bits
Pliers
1/2" and 7/16" Sockets
and Wrench
Stepladder
Screwdriver
Adjustable End Wrench
CAUTION
WARNING
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!
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.
Before you begin, complete the following test to
make sure your door is balanced, and is not
sticking or binding:
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.
• Lift the door about halfway as shown. Release the
door. It should stay in place, supported entirely by
its springs.
Identify the type and height of your door and any
special conditions that exist and any additional
materials that may be required by referring to page 4.
• Raise and lower the door to see if there is any
binding or sticking.
ONE-PIECE DOOR
SECTIONAL DOOR
3
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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.
Horizontal and vertical reinforcement
See page 13.
is needed for lightweight garage doors
Slack in belt tension
is normal when
garage door is closed.
(fiberglass, steel, aluminum,
door with glass panels, etc.).
See page 20 for details.
Header Wall
Extension Spring
OR
Torsion Spring
Access Door
Door Center
Safety
Reversing
Sensor
Floor must be level
across width of door
Model 1702LMC Outside Quick Release
is required if there is no access door.
Safety
Reversing Sensor
One-Piece Door Installation
One-Piece Door without Track
FINISHED CEILING
Support bracket
& fastening hardware
may be required.
Slack in belt tension
is normal when
See page 13.
garage door is closed
Header
Wall
One-Piece Door with Track
Slack in belt tension
is normal when
garage door is closed.
Access Door
Access
Door
Safety
Reversing
Sensor
Gap between floor
and bottom of door
must not exceed 1/4".
Safety
Reversing
Sensor
Safety
Reversing Sensor
Floor must be level
across width of door
Safety
Reversing Sensor
You may find it helpful to refer back to this page as
you proceed with the installation of your opener.
4
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Opener 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 for installation is
also listed below.
LOCK
LIGHT
Remote Control
Transmitter Visor Clip
Belt Cap Retainer
Single-Function
Remote Control
Transmitter (1)
Multi-Function
Door Control Panel
Styrofoam
Belt
Light Lens (2)
Door Bracket Plate
2-Conductor Bell Wire
White & White/Red
Curved Door
Arm Section
One-Piece
T-rail
CEILING MOUNT ONLY
UP
Door Bracket
Header Bracket
2-Conductor Bell Wire
with Connector (2 rolls)
White & White/Black
Trolley
Safety Reversing Sensor (2)
(1) Sending Eye
Belt
Pulley Bracket
(1) Receiving Eye
Straight Door
Arm Section
Safety Labels
and
Literature
Safety Reversing Sensor
Mounting Bracket
With Slot (2)
Safety Reversing Sensor
Mounting Bracket
With Square Holes (2)
"C" Wrap (2)
Safety Reversing Sensor
Installation Hardware
Installation Hardware
Hex Screw 5/16"-18x7/8" (4)
Hex Screw #8x3/8" (2)
Screw 6ABx1" (2)
Lag Screw 1/4"x1-1/2" (4)
Carriage Bolt 1/4"-20x1/2" (4)
Lock Nut 1/4"-20 (4)
Handle
Lag Screw 5/16"-18x1-7/8" (4)
Carriage Bolt 5/16"-18x2-1/2" (2)
Clevis Pin 5/16"x2-3/4" (1)
Clevis Pin 5/16"x1" (2)
Insulated Staples (10)
Ring Fastener (3)
Rail Grease
Wing Nut (2)
Hex Screw 1/4"-20x1-1/2" (2)
Screw #10-32x3/8" (4)
Lock Nut #10-32 (4)
Rope
Nut 5/16"-18 (6)
Dry Wall Anchors (2)
Lock Washer 5/16" (6)
Insulated Staples (20)
5
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Assembly Section: Pages 6 – 7
Assembly Step 1
Attach the T-rail to the Opener
CAUTION
To fasten rail, use only those screws mounted
in top of the opener. Failure to do so will cause
serious damage to the opener.
Washered Screw
5/16"-18x1/2"
• Remove the two washered screws mounted in top
of opener.
Styrofoam
• Align T-rail and styrofoam over opener sprocket.
• Cut tape from T-rail, belt and styrofoam.
• REMOVE STYROFOAM.
Belt
• Insert both washered screws through the T-rail into
the opener. Tighten both screws securely.
USE ONLY THIS
TYPE AND SIZE
SCREW
T-rail
Hole
Remember to use only these screws! Any other
screws will cause serious damage to the opener.
Washered Screw
5/16"-18x1/2"
• Position belt over the opener sprocket.
Opener
Sprocket
T-rail
Hole
Belt
T-rail
Hole
Assembly Step 2
Set the Belt Tension
Trolley
• By hand, thread the spring trolley nut on the
threaded shaft until it is finger tight against the
trolley. Do not overtighten.
Trolley
Threaded
Shaft
Spring
Trolley Nut
• Insert a small screwdriver tip into one of the insert
slots of the nut ring, and hold firmly.
• Using an open end wrench at the square end,
slightly rotate the assembly clockwise until the nut
ring is released against the trolley, providing
tension for the best operation of the opener.
Trolley
Threaded Shaft
Nut
Ring
Nut Ring
Insert Slot
Open End
Wrench
Screw-
driver
Trolley
Square End
6
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Assembly Step 3
Attach the Belt Cap Retainer
WARNING
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
#8x3/8"
Belt Cap
Retainer
Opener Sprocket
Mounting Plate
Hardware Shown Actual Size
Belt
Hex Screw
#8x3/8"
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
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
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Installation Section: Pages 8 – 23
Installation Step 1
Determine Header Bracket Location
WARNING
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.
Installation procedures vary according to garage
door types. Follow the instructions which apply to
your door.
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.
SECTIONAL Doors and
ONE-PIECE Door With Track
Finished
Ceiling
Vertical
Guideline
Header
Wall
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 to 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. (It may
be mounted on the wall upside down
if necessary, to gain approximately
1/2".)
Vertical
Guideline
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.
Ceiling
Header
Wall
2"
Track
Header
Wall
2"
• 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.
Track
Highest Point
of Travel
Highest Point
of Travel
Door
Door
Sectional door with
curved track
One-piece door with
horizontal track
Proceed to Step 2, page 10.
8
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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
2x4
• Close the door and mark the
Structural
Supports
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.
2x4
Vertical
Centerline of
Garage Door
OPTIONAL CEILING MOUNT
• 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.
Header Wall
Highest Point
Highest Point
of Travel
Header
Wall
of Travel
Door
Door
Jamb
Hardware
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).
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.)
• 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.
Proceed to Step 2, page 10.
9
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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
• Center the bracket on the vertical guideline with
the bottom edge of the bracket on the horizontal
line as shown (with the arrow pointing toward the
ceiling).
• Mark either set of bracket holes (do not use the
holes designated for ceiling mount). Drill 3/16" pilot
holes and fasten the bracket securely to a structural
support with the hardware provided.
Wall
Mounting Holes
Vertical
Center
Header
Wall
Line
Lag Screws
CEILING MOUNT ONLY
CEILING OUNT ONLY
UP
5/16"x18x1-7/8"
Header
Bracket
UP
2x4
Structural
Support
Door
Spring
The nail hole is for positioning
only. You must use lag screws to
mount the header bracket.
Optional
Wall Mounting
Holes
Garage
Door
Hardware Shown Actual Size
Highest
Point of Travel
(of Garage Door)
Vertical
Center
Line
Lag Screw
5/16"-18x1-7/8"
Fasten the Header Bracket to the Ceiling
• Extend the vertical guideline onto the ceiling as
shown.
Finished
Ceiling
• 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.
Vertical
Center Line
Header
Bracket
• Mark holes designated for ceiling mount only. Drill
3/16" pilot holes and fasten bracket securely to a
structural support with the hardware provided.
U P
6" Maximum
Door
Spring
Lag Screws
5/16"x18x1-7/8"
Ceiling Mounting Holes
CEILING MOUNT ONLY
Header
Wall
UP
Vertical
Center Line
Garage
Door
The nail hole is for positioning only.
You must use lag screws to mount
the header bracket.
10
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Installation Step 3
Attach the T-rail to the Header Bracket
• Position the opener on the garage floor below the
header bracket. Use packing material as a
protective base.
Header Wall
Header
Bracket
If the door spring is in the way you'll need help.
Have someone hold the opener securely on a
temporary support to allow the T-rail to clear the
spring.
Belt Pulley
Bracket
• 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.
Ring Fastener
T-rail
Header Bracket
Clevis Pin
5/16"x2-3/4 "
Belt Pulley
Bracket
T-rail
Garage
Door
Temporary
Support
Hardware Shown Actual Size
Clevis Pin
5/16"x2-3/4"
Ring Fastener
11
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Installation Step 4
Position the Opener
CAUTION
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.
2x4
Laid Flat
T-rail
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.
Door
• If the top panel hits the trolley when you raise
the door, pull down on the trolley release arm
to disconnect inner and outer sections. The
trolley can remain disconnected until Step 12
is completed.
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.
Top of Opener
Top of 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.
Stepladder
12
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Installation Step 5
Hang the Opener
WARNING
The opener could fall and injure someone if it
is not properly secured. 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.
Figure 1
Structural
Supports
• Measure the distance from each side of the opener
to the structural support.
Lag Screws
5/16"x1-7/8"
• Cut both pieces of the hanging bracket to required
lengths.
Measure
Distance
• Drill 3/16" pilot holes in the structural supports.
• Attach one end of each bracket to a support with
5/16"x1-7/8" lag screws.
5/16"-18x7/8"
Hex Screws
5/16" Lock Washers
5/16"-18 Nuts
• Fasten the opener to the hanging brackets with
5/16"-18x7/8" hex 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 2
— FINISHED CEILING —
Bracket
(Not Supplied)
Hidden
Support
Grease the top and underside
of the rail surface where
the trolley slides with
rail grease.
Lag Screws
5/16"x1-7/8"
(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
Hardware Shown Actual Size
Lag Screw
5/16"-18x1-7/8"
Hex Screw
5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
13
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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.
• 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.
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).
• 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 Panel
securely with 6ABx1" screws. If installing into
drywall, drill 5/32" holes and use the anchors
provided.
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.
• 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, thereby resulting in a short.
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.
• Receiver terminals and the antenna are located on
the right side panel of the opener. Position the
antenna wire as shown.
See Safety Reversing Sensor Instructions
beginning on page 17.
• 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
Maintenance Instruction label in a prominent
location on the inside of the garage door.
Outside Keylock Accessory Connections
To opener terminal screws: white to 2; white/red to 1
If the label adhesive will not adhere to your garage
wall surface (or becomes loose with time) use tacks
to secure the label alongside the Door Control.
Multi-Function
Door Control Panel
Terminal Screws
Page 28 explains how to operate the opener using
the lighted push bar and the Lock & Light features
available on the Multi-Function Door Control Panel.
RED
WHI
- 2
TE
- 1
Hardware Shown Actual Size
6ABx1" Screw
Insulated Staples
Multi-Function Door Control
Dry Wall Anchors
Lock Button
Opener
Terminal
Screws
2-Conductor
Bell Wire
LOCK
LIGHT
1
2
3
Light Button
9
9
1
1
7
3
7
3
5
5
KG
KG
Door
Control
Button
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
plat) posé sur le sol. Effectuer les reglages
selon les procédures décrites dans la notice.
PART NO: Nº DE PIÈCE:
2
x
4
de section,
à
D.O.C. CERT. NO. DATE:
Sears Roebuck
Sears Canada Inc., Toronto
Assembled in Mexico Assemblé du Mexique
PAT. #RE29,525; 4,750,201; 4,806,930 Other Patents Pending.
&
Co.
-
M.D.C. CERT. NO. 132C2105-1
Multi-Function
Door Control Panel
Right Side
Panel of
Opener
Antenna
14
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Installation Step 7
Install the Lights and the Lenses
Install the lights
• Install a 75 watt maximum light bulb in the socket.
The light will turn ON and remain lit for
approximately 4-1/2 minutes when power is
connected. Then the light will turn OFF.
Lens
Guide
75 Watt
Maximum
Light Bulb
• If the bulbs burn out prematurely due to vibration,
replace with a "Garage Door Opener" bulb.
Lens
Tab
75 Watt
Maximum
Light Bulb
Install the lenses
• Slide lenses into guides. Snap bottom tabs into
lens slots.
Lens Slot
• For convenience, the lenses may be installed
after Adjustment Step 4 on page 26.
Lens Tab
• Reverse the procedure to remove the lenses.
Installation Step 8
Attach the Manual Release
Rope and Handle
WARNING
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
Trolley
Release Arm
Rope
• 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.
NOTICE
Manual
Release Handle
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.
15
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Installation Step 9
Electrical Connections
WARNING
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.
To avoid installation difficulties,
do not run the opener at this time.
Right
Wrong
• 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.
Permanent wiring
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.
Ground Tab
• Remove the attached 3-prong cord.
Green
• Connect the black (line) wire to the screw on the
brass terminal; the white (neutral) wire to the
Ground
Screw
screw on the silver terminal; and the ground wire
to the green ground screw. The opener must be
Black
Wire
Ground Wire
grounded.
• Reinstall the cover.
To avoid installation difficulties,
do not run the opener at this time.
White Wire
Black
Wire
16
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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
Installation procedures are the same for sectional
be injured or killed by a closing garage door.
and one-piece doors.
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.
Sensor Beam
4-6" max.
above floor
Sensor Beam
4-6" max.
above floor
Invisible Light Beam
Protection Area
Figure 1: Facing the door from inside the garage
Be sure power to the opener is disconnected.
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 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.
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.
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
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Figure 2
Installation Step 10
Install the Safety Reversing Sensor
Garage WALL or DOOR TRACK Installation
Mounting Bracket
With Square Holes
"C" Wrap
Figures 2, 3 and 4 show recommended assembly of
bracket(s) and "C" wrap based on the wall install
ation of the sensors on each side of the garage door
as shown on page 17, or on the garage door tracks
themselves.
#10-32x3/8"
Screws
#10-32
Lock Nuts
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.
Garage DOOR Track Installation
Figure 3
1/4"-20 Lock Nuts
Inside
Garage
Door Track
Mounting Bracket
with Square Holes
Garage
Wall
For Garage Wall or Door Track Installation
Drill 3/8"
Holes
• Fasten the "C" wraps to the mounting brackets
having square holes, using the hardware shown in
Figure 2.
"C" Wrap
For Door Track Installation Only
• Discard slotted bracket. Drill 3/8" holes in each
track and fasten securely with hardware as shown
in Figure 3.
1/4"-20x1/2"
Carriage Bolts
For Wall Installation
Figure 4
Garage WALL Installation
• Connect each assembly to a slotted bracket, using
the hardware shown in Figure 4. Note alignment
of brackets for left and right sides of the door.
1/4x1-1/2"
1/4-20x1/2" Carriage Bolts
(with square shoulder)
Lag Screws
Inside
Garage
Wall
• 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 Figure 4.
"C" Wrap
Mounting Bracket
with Slot
Mounting Bracket
with Square Holes
• 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.
1/4"-20
Lock Nuts
Alternate Floor Mount
Alternate Wall Mount
Figure 5
Figure 6
Inside
Garage
Wall
Inside
Garage
Wall
Indicator
Light
Sensor
Mounting Bracket
with Slot
Mounting Bracket
with Square Holes
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
"C" Wrap
"C" Wrap
Attach with
concrete anchors
(not provided)
Sensor
Indicator Light
Garage
Floor
Garage
Floor
Hardware Shown Actual Size
#10x32
Lock Nut
1/4x1-1/2"
Lag Screw
1/4"-20x1/2"
Carriage Bolts
#10-32x3/8"
Screw
1/4"-20
Lock Nut
Staples
18
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Safety Sensor
• Insert the wire connector into each
sensor and push until you hear a
click, Figure 7. The white tab on the
sensor should be flush with the
back of the connector.
Figure 7
Tab should be
flush with back
of connector
White Tab
Push connector in
until you hear a click
Wire Connector
Figure 8
Connect Wire to
Opener Terminals
— Finished Ceiling —
Bell Wire
Wall Control
Connections
(dotted line)
Sensor
Connections
1
2
3
Bell Wire
OPENER TERMINAL SCREWS
• Center each sensor unit in a "C" wrap with lenses
pointing toward each other across the door.
• 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.
Wing Nut
"C" Wrap
Wire
Indicator Light
Sensor
Invisible Light Beam
1/4-20x1-1/2"
Hex Bolt
Protection Area
Sensor
Sensor
• Run paired wires from both sensors to the opener.
Use insulated staples to secure the wire to wall
and ceiling.
Trouble Shooting
1. If the sending eye indicator light does not glow
steadily after installation, check for:
• Strip 1/4" of insulation from each set of wires.
• Electric power to the opener.
Separate white and white/black wires sufficiently to
connect to the opener terminal screws: white to 2
and white/black to 3.
• A short in the white or white/black wires. These
can occur under staples or at screw terminal
connections.
• Plug in the opener. Make sure the Lock Feature is
off. Green indicator lights in both the sending and
receiving eyes will glow steadily if wiring
• Incorrect wiring between sensors and opener.
• An open wire (wire break).
connections and alignment are correct.
• Lock switch on Multi-Function Door Control Panel
is on. Turn it off.
If the indicator light is off in the receiving eye (and
the invisible light beam path is not obstructed),
alignment is required.
2. If the sending eye indicator light glows steadily but
the receiving eye indicator light doesn't:
• Loosen the receiving eye wing nut to allow slight
rotation of unit. Adjust sensor vertically and/or
horizontally until the green indicator light glows
with a steady light.
• Check alignment.
• Check for an open wire to the receiving eye.
Hardware Shown Actual Size
1/4-20x1-1/2"
Hex Bolt
• When indicator lights are glowing steadily in both
units, tighten the wing nut in the receiving eye unit.
Wing Nut
19
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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 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
Horizontal and vertical reinforcement
Bracket
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"
Door
Vertical
Bracket
Guideline
Nut
5/16"-18
Vertical
Guideline
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.
Door Bracket
Plate
• 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.
Hardware Shown Actual Size
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.
Nut 5/16"-18
Lock Washer 5/16"
If your installation doesn't require vertical reinforce-
ment 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.
Carriage Bolt
5/16"-18x2-1/2"
20
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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
Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fiberglass, aluminum, steel,
Header
Bracket
door with glass panel, etc.).
Door
Bracket
Inside Edge
of Door or
Reinforcement Board
Vertical
Centerline of
Garage Door
Door
Bracket
Door Bracket
Plate
• Center the bracket (with or without the plate
Hardware Shown Actual Size
according to your fastening requirements) 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.
Nut 5/16"-18
Lock Washer 5/16"
Carriage Bolt
5/16"-18x2-1/2"
21
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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 manual 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, 2 and 3.
Figure 1:
Figure 2:
• Fasten straight door arm section to outer trolley
with a clevis pin. Secure the connection with a ring
fastener.
• 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.
• Fasten curved section to the door bracket in the
same way as shown.
Inner Trolley
Outer Trolley
Lock
Washers
5/16"
Clevis
Pin
Rope
Ring
Fastener
Manual
Release
Handle
Nuts
5/16"-18
Door
Straight
Bracket
Door Arm
Screws
5/16"-18x7/8"
Curved
Door Arm
Clevis Pin
Figure 1
Hole Alignment Alternative
Figure 2
Door Bracket
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"
Hardware Shown Actual Size
Nuts
5/16"-18
Screws
5/16"-18x7/8"
Nut 5/16"-18
Ring Fastener
Lock Washer 5/16"
Figure 3
Cut This End
Clevis Pin
5/16"x1"
Hex Screw
5/16"-18x7/8"
Proceed to Adjustment Step 1, page 24. Trolley will re-engage automatically when the opener is operated.
22
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All ONE-PIECE Doors
Assemble the Door Arm:
Door
Bracket
Ring
• Fasten the straight and curved door arm sections
together to the longest possible length (with a 2 or
3 hole overlap).
Fastener
Nuts
5/16"-18
Lock
Washers
5/16"
Straight
Door Arm
• With the door closed, connect the straight door
arm section to the door bracket with a clevis pin.
Clevis Pin
Curved
Door Arm
• Secure with a ring fastener.
Screws
5/16"-18x7/8"
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
Door Arm
Door Arm
Connector Hole
Connector Hole
Door Arm
Door with
Backward Slant
Closed
Door
Open Door
Adjustment Procedures for One-Piece Doors
Open Door Adjustment:
Decrease UP limit
Closed Door Adjustment:
Decrease DOWN limit
• Turn the UP limit adjustment screw counter-
clockwise 5-1/2 turns.
• Turn the DOWN limit adjustment screw clockwise 5
complete turns.
• Press the Door Control push bar. The trolley will
travel to the fully open position.
• Press the Door Control push bar. The trolley will
travel to the fully closed 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.
• 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
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Adjustment Section: Pages 24 – 26
Adjustment Step 1
Adjust the UP and DOWN Limits
WARNING
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).
Adjustment procedures are outlined below. Run
the opener through a complete travel cycle after
each adjustment.
Left Side
Limit
Panel
Adjustment
Screws
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 continuing on
to Adjustment Step 2. Use a screwdriver to make
limit adjustments.
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 door does not close completely
If the opener lights are flashing, the Safety Reversing
Sensor is obstructed. Remove the obstruction.
Increase down travel. Turn the DOWN limit
adjustment screw counterclockwise. One turn
equals 2" of travel.
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 door still won't close completely, try lengthening
the door arm. (See 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 and 9.
24
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Adjustment Step 2
Adjust the Force
WARNING
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
side 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.
Force
Adjustment
Controls
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.
1
2
3
TO PROGRAM RECEIVER CODE
FOR EACH REMOTE CONTROL
1. Press and HOLD remote control
transmitter push button.
2. Press receiver code button. The opener
light will flash once.
9
9
1
1
3. Release transmnitter button. Opener
has learned code.
7
3
7
3
TO ERASE ALL RECEIVER CODES
5
5
1. Press and HOLD receiver code button.
Green indicator light alongside will turn
ON.
K
G
K
G
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
WARNING: To reduce the risk of severe injury
or death by entrapment, when adjusting either
the force or limits of travel controls ensure that
inch object (or
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
2. When light turns OFF (about
6
seconds) ALL codes are erased from
opener memory.
the door reverses on
a
1
a
2
x
4
that may be received,
including interference
that may cause
hauteur (ou un madrier de
plat) posé sur le sol. Effectuer les reglages
selon les procédures décrites dans la notice.
PART NO: Nº DE PIÈCE:
2
x
4
de section,
à
undesired operation.
Sears Roebuck
Sears Canada Inc., Toronto
Assembled in Mexico Assemblé du Mexique
PAT. #RE29,525; 4,750,201; 4,806,930 Other Patents Pending.
&
Co.
D.O.C. CERT. NO. DATE:
-
M.D.C. CERT. NO. 132C2105-1
9
9
1
1
7
7
3
3
5
5
KG
KG
Adjustment Label
Right Side Panel
of Opener
How and When to Adjust the Forces
Test the DOWN (close) force
If the door doesn't open at least 5 feet
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.
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
Make 10 degree turn adjustments until the door
reverses normally. After each adjustment, run the
opener through a complete cycle.
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. Make 10 degree turn adjustments
until the door stops easily. After each adjustment,
run the opener through a complete travel cycle.
25
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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 light(s) will flash.
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 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
Safety Reversing Sensor
Adjustment Step 4
Test the Safety Reverse System
WARNING
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.
GARAGE DOOR
Test:
• Place 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 2x4 laid flat,
remove the obstruction and run the opener through
3 or 4 complete travel cycles to test adjustment.
2x4 laid flat
Important safety check:
Repeat Adjustment Steps 1, 2 and 4 after:
If the door will not reverse after repeated
adjustment attempts, call for professional
garage door service.
• 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
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IMPORTANT SAFETY INSTRUCTIONS
WARNING
WARNING
To reduce the risk of severe injury or death to persons:
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
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 2x4 board laid flat placed on the floor. If an adjustment is made to either the force or the limit
of travel, both adjustments may be needed 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 3. 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 from the garage door opener before making any repairs or removing
the covers.
8.
SAVE THESE INSTRUCTIONS.
Care of Your Opener
The remote control transmitter:
Limit and force adjustment controls
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 radio controls and remote controls is
not recommended. If service is needed, call the toll-
free number listed on the back page.
Limit Controls
Force Controls
9
9
1
1
7
7
3
3
5
5
KG
KG
Adjustment Label
(Located on the left side panel)
Adjustment Label
(Located on the right side panel)
The remote control battery:
The green test light will glow and the opener will
operate when the remote control is activated.
Weather conditions may cause some minor
changes in door operation requiring some re-
adjustments, particularly during the first year of
operation.
If the test light is dim or off, replace the battery.
The 12V battery should produce power for at least a
year.
Pages 24 and 25 refer to the limit and force
adjustments. Only a screwdriver is required. Follow
the instructions carefully.
Dispose of your old battery properly.
Repeat the safety reverse test (page 26) after any
adjustment of limits or force.
Maintenance Schedule
Once a Month
Once a Year
Manually operate door. If it is unbalanced or
Oil door rollers, bearings and hinges.
binding, call for professional garage door service.
The opener does not require additional lubrication.
Do not grease the door tracks.
Check to be sure door opens & closes fully.
Adjust limits and/or force if necessary. (See pages
24 and 25.)
Repeat the safety reverse test. Make any
necessary adjustments. (See page 26.)
27
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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.
•
•
•
WARNING
The Door Control. Hold push bar down until the
door starts to move.
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.
The Outside Keylock or Keyless Entry System.
(See Accessories)
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.
To open the door
manually:
2. If closing, the door will reverse.
Trolley
Release Arm
The door should be
fully closed if
possible. Pull down on
the red manual
release handle and lift
the door manually.
To reconnect the door
to the opener, press
3. If opening, the door will stop (allowing space for
entry and exit of pets and for fresh air).
Trolley
4. If the door has been stopped in a partially open
position, it will close.
NOTICE
5. If obstructed while closing, the door will reverse.
6. If obstructed while opening, the door will stop.
Manual
Release Handle
(Pull Down)
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.
the Door Control
push bar.
Manual disconnect
position
If the sensor is not installed, or is not aligned correctly,
the door won't close from any remote 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 lockout feature
prevents the trolley from
reconnecting auto-
Trolley
Release Arm
matically. Pull the red
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
handle straight down.
The trolley will reconnect
on the next UP or
Trolley
The opener lights will blink for 5 seconds when the
safety reversing sensor causes the door to reverse.
NOTICE
The 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. It 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.
Manual
Release Handle
(Pull Down & Back
Towards Opener)
Lockout position
DOWN operation.
Operation of the Door Controls
(both are not included with all models)
Lighted Door Control Button:
Lighted Push Bar - Door Control Panel: Press to
open or close the door.
Lock Feature - Door Control Panel: 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.
Press again to reverse the door during the closing
cycle or to stop the door while it's opening.
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.
Light Feature - Door Control Panel: 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.
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 panel is activated.
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.
28
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Receiver and Remote Control Programming
NOTICE: To comply with FCC/IC rules, adjustment or modifications of
this receiver and/or transmitter are prohibited, except for changing the
code setting or replacing the 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 or remote control
transmitter(s).
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.
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 "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 transmitters 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.
To Add A Remote
Figure 1
1. Press and hold the remote push button. See
Figure 1.
Single Function Remote Control
2. Then press and release the "Smart" button on the
right side of the opener in Figure 2. The opener
lights will flash once.
Battery
Indicator Light
3. Release the remote push button.
Now the opener will operate when the remote control
push button is pressed.
Push Button
If you release the remote control push button
before the opener lights flash, the opener will not
accept the code.
Figure 2
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.
Garage Door Opener
(With "Smart" Button)
1
2
3
• To reprogram, repeat Steps 1 - 3 for each remote
control in use.
9
9
1
1
7
7
3
3
5
5
KG
KG
Code programming instructions are also located
on the opener panel.
"Smart"
Button
Indicator
Light
29
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Having a Problem?
Situation
Probable Cause & Solution
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.
The opener doesn't
operate from either
the Door Control or
the remote control:
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
the remote, but not
from Door Control:
1. Is the door control lit? If not, remove the bell wire from the opener terminals. Short the
red and white terminals by touching both terminals at the same 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 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
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
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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 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.
Check the safety reversing sensor. Remove any obstruction or align the receiving eye.
See page 19.
The door reverses for
no apparent reason
and opener lights
blink for 5 seconds
after reversing:
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 door may be out of balance or the springs are broken. Close the door and use the
manual release 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 a professional garage door
serviceman. Do not increase the force to operate the opener.
The opener strains or
maximum force is
needed to operate
door:
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 to disconnect the trolley. The door can be opened and
closed manually. When the 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
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Repair Parts
Rail Assembly Parts
5
3
1
6
7
2
KEY
NO.
PART
NO.
4
DESCRIPTION
1
2
3
4
5
6
7
1A995
Master link kit
41A3588
41B3869-1
183B99
Belt pulley bracket
Complete trolley assembly
One-piece T-rail
41A3589
41B4103
109B33
Full belt assembly
Tensioner assembly
Trolley clip
Installation Parts
2
3
6
LOCK
LIGHT
4
12VDC
5
1
NOTICE
KEY PART
NO.
NO.
DESCRIPTION
9
7
1
2
3
4
41A4202A
10A14
29C128
Multi-function door control panel
12V battery
Transmitter visor clip
Single-function remote control
case, cover & screw only
Manual release rope & handle assy.
2-conductor bell wire, white & white/red
Door bracket
8
CEILING MOUNT ONLY
UP
41A3984-7
5
6
7
8
9
41A2828
217A238
12B374-1
12B380-1
41A4353-1
41A4373
11
10
13
Door bracket plate
Header bracket w/clevis pin & fastener
Safety sensor kit
10
(receiving and sending eye only)
2-conductor bell wire with connector
white & white/black (2 rolls)
Curved door arm section
Straight door arm section
"C" wrap bracket
14
11
41B4115
12
12
13
14
15
16
178B35
178B34
12B483
12B484
12B485
Square hole bracket
Slotted bracket
16
15
NOT SHOWN
41A2770-1
Installation hardware bag
(includes hardware listed on page 5).
41A4116
Safety sensor hardware
Owner's manual
114A1857
32
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Repair Parts
Opener Assembly Parts
1
2
4
9
7
3
5
6
8
8
10
11
20
3
12
18
19
9
13
15
5
17
14
(Down)
Contact
16
LIMIT SWITCH ASSY.
Brown
Wire
D N
Grey
Wire
U P
Drive
Gear
Center Limit
Contact
(Up)
Contact
Yellow
Wire
KEY PART
KEY
NO.
PART
NO.
NO.
NO.
DESCRIPTION
DESCRIPTION
1
2
41A4371
41A3587
Belt cap retainer
10
11
12
13
30B363
12A373
41A3150
41D3058
Capacitor - 1/2HP
Capacitor bracket
Gear and sprocket assembly
Complete with:
Spring washer
Thrust washer
Retaining ring
Bearing plate
Roll pins (2)
Drive gear and worm gear
Terminal block w/screws
Universal replacement motor &
bracket assembly
Complete with: Motor, worm,
bracket, bearing assembly, RPM
sensor
Helical gear w/retainer and grease
14
15
16
17
18
19
20
41A3583-3
41A2818
41D3452
41C4398A
41A2826
41A2822A
41A4416
Cover
3
41A2817
Drive/worm gear kit w/grease
Roll pins (2)
Helical gear & retainer w/grease
Limit switch assembly
RPM sensor assembly
Shaft bearing kit
4
5
6
41B4245
41C4253
Line cord
Wire harness assembly with plug
41A4252-6B Receiver logic board assembly
Complete with: Logic board,
End panel w/all labels
Interrupter cup assembly
End panel
NOT SHOWN
7
8
9
41A4435
175B88M
108D34
End panel w/all labels
Light socket
Lens
41A2825
Opener assembly hardware kit
(includes screws not designated
by a number in illustration).
33
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Accessories Available For Your Opener
Model 1702LMC
Model 60LMC
Model 61LMC
Model 81LMC
Model 82LMC
Single-Function Standard Size
Remote Control:
Outside Quick Release:
Required for a garage with NO
access door.
Includes visor clip.
Outside Keylock:
"Smart" Remote Control:
Opens the garage door automatically
from outside when remote control is
not handy.
Includes visor clip.
Model 1778LMC
8 foot Complete Rail:
2-Channel “Smart” Remote
Control:
To allow an 8 foot door to open fully.
Includes visor clip.
Model 1770LMC
Model 66LMC
10 foot Complete Rail:
Model 83LMC
Model 84LMC
3-Channel “Smart” Remote
Control:
To allow a 10 foot door to open fully.
Includes visor clip.
Keyless Entry:
4-Channel “Smart” Remote
Control:
Enables homeowner to operate
garage door opener from outside
by entering code on specially
designed keyboard.
Includes visor clip.
Model 64LMC
Model 58LMC
Multi-Function Door Control Panel:
Multi-Function Mini Remote
Control:
Provides a Lock Feature which
prevents operation of garage door
opener from portable remotes and a
Light Feature for constant light.
LOCK
LIGHT
With key ring & Velcro fastening
strip.
Model 99LMC
Security Remote Control:
E
N
T
E
R
Enables homeowner to operate garage door opener by entering 2, 3, 4, or 5 digit code from
backlit keyboard. Includes visor clip.
9
0
7
8
5
6
3
4
2
1
34
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Index
Access Door/Outside Quick Release Accessory..........................................................................................4, 34
Electrical Safety Warnings....................................................................................................................2, 7, 16, 27
Garage Door
Testing for balance, binding and sticking...................................................................................................3, 25, 27
Determining high point of travel:
Sectional Door ....................................................................................................................................................8
One-Piece Door..............................................................................................................................................8, 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, 12, 14, 27, 28
Maintenance Instruction Label.........................................................................................................................7, 14
Reinforcement requirements .....................................................................................................................4, 20, 21
Removing of all ropes........................................................................................................................................3, 7
Possible door damage...........................................................................................................................3, 4, 12, 20
Travel Limits
Adjustment Procedures ....................................................................................................................................24
Problems that might require Limit adjustments...........................................................................................30, 31
Safety Warnings ...................................................................................................................................15, 27, 28
Manual Release Rope & Handle
Lockout Feature..................................................................................................................................................28
Manual Disconnect .......................................................................................................................................28, 31
Safety Warnings ...........................................................................................................................................24, 27
Opener Terminals
Door Control Connections ..................................................................................................................................14
Safety Reversing Sensor Connections...............................................................................................................19
Outside Keylock Accessory Connections ...........................................................................................................14
Protector System®..........................................................................................................................................17, 26
Receiver and Remote Controls
Programming the receiver ..................................................................................................................................29
Erasing all codes ................................................................................................................................................29
Safety warning....................................................................................................................................................29
Problems with 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, 26
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
Vibration Noise (isolator kit)...............................................................................................................................30
35
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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.
LIFT-MASTER SERVICE
IS ON CALL
OUR LARGE SERVICE ORGANIZATION
SPANS AMERICA AND CANADA
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE
THE FOLLOWING INFORMATION:
INSTALLATION AND SERVICE INFORMATION IS AS
NEAR AS YOUR TELEPHONE SIX DAYS A WEEK.
SIMPLY DIAL OUR TOLL FREE NUMBER:
• PART NUMBER
• PART NAME
• MODEL NUMBER
1-800-654-4736
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:
CHAMBERLAIN MFG., CANADA INC.
230 Bayview Drive
Barrie, Ont., Canada L4N 5E9
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:
1-800-654-4736
LIFT-MASTER GARAGE DOOR OPENER FIVE-YEAR LIMITED WARRANTY
Chamberlain/Lift-Master warrants to the first retail purchaser of this product that it will be free from any defect in materials and/or
workmanship for a period of 60 full months from the date of purchase. The product must be used in complete accordance with Lift-
Master's instructions for installation, operation and care.
This warranty does not cover non-defect damage, damage caused by unreasonable use (including abuse, failure to provide
reasonable and necessary maintenance, or any alterations to the product), labor charges for dismantling or reinstalling of a repaired
or replaced unit or replacement batteries.
If, during the warranty period, the product appears as though it may be defective, CALL OUR TOLL FREE SERVICE NUMBER
BEFORE DISMANTLING IT (1-800-654-4736). If the product is then alleged to be defective, please send it pre-paid and insured to
our Service Center to obtain warranty repair. You will be advised of shipping instructions when you call the number listed above.
Please be sure to include a brief description of the problem and a dated proof-of-purchase receipt with any product that is returned for
warranty repair.
Product under warranty, which upon receipt by Chamberlain/Lift-Master is determined to be defective in materials and/or
workmanship, will be repaired or replaced (Chamberlain's option) at no cost to you and returned pre-paid. Defective parts will be
repaired or replaced with new or factory rebuild parts at Chamberlain's option.
THE DURATION OF IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS
LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY. SOME PROVINCES MAY NOT ALLOW LIMITATIONS ON HOW
LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
All claims for consequential or incidental damages for breach of this warranty are excluded and in no event shall manufacturer's
liability for breach of warranty, negligence, strict liability or breach of contract exceed the cost of the product covered herein, but the
purchaser is entitled to the remedies expressly provided in this policy. Some provinces do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation or exclusion may not apply to you.
No representative or person is authorized to assume for us any other liability in connection with the sale of this product. This warranty
gives you specific legal rights, and you may also have other rights which may vary from province to province.
© 1995, Chamberlain Mfg., Canada, Inc.
114A1857B
All Rights Reserved
Printed in Mexico
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