Chamberlain 1270LMC User Manual

Page 1
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!
The door WILL NOT CLOSE unless the Protector System
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.
®
is connected and
Page 2

CONTENTS PAGE

A review of safety alert symbols ...............................2
You'll need tools........................................................3
Safety information regarding garage door locks
and ropes...............................................................3
Testing your garage door for sticking, binding
and balance ...........................................................3
llustration of sectional door installation ....................4
Illustration of one-piece door installation...................4
Carton inventory........................................................5
Hardware inventory...................................................5
Assembly Section - Pages 6 – 7
Attach T-rail to opener ............................................6
Set the belt tension .................................................6
Attach belt cap retainer...........................................7
Installation Section - Pages 8 – 23
Installation safety instructions.................................7
Determine header bracket location
Sectional door.......................................................8
One-piece door .....................................................9
Install header bracket............................................10
Attach the T-rail to header bracket........................11
Position the opener...............................................12
Hang the opener ...................................................13
Install the door control...........................................14
Install the lights and lenses...................................15
Attach manual release rope and handle ...............15
CONTENTS PAGE
Electrical connections ...........................................16
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 injuries or death
come from something mechanical or from electric shock.
if you do not comply with the corresponding instructions. The hazard may
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
Page 3

You'll Need Tools

During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below.
Pencil
Carpenter's
Level
2
1
Tape Measure
Hack Saw
Wire Cutters
Stepladder
Drill
1/2" and 7/16" Sockets
and Wrench
3/16", 5/16" and
5/32" Drill Bits
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.
pulleys, brackets and their hardware, are under extreme tension and can cause serious injury or death.
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.
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.
Garage doors, door springs, cables,
Do not try to loosen, move or
Claw Hammer
Pliers
Screwdriver
Adjustable End Wrench
CAUTION
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:
• 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.
SECTIONAL DOOR
ONE-PIECE DOOR
3
Page 4
Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.

Sectional Door Installation

Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum,
door with glass panels, etc.).
See page 20 for details.
Header Wall
— — — — — — — —
Door Center
FINISHED CEILING
Support bracket & 
fastening hardware
is required.
See page 13.
Slack in belt tension
is normal when
garage door is closed.
Extension Spring
OR
Torsion Spring
Access Door
Safety
Reversing
Sensor
Floor must be level
Safety
Reversing Sensor
across width of door

One-Piece Door Installation

One-Piece Door without Track
Header
Wall
Model 1702LMC Outside Quick Release
is required if there is no access door.
Slack in belt tension
is normal when
garage door is closed
Access Door
FINISHED CEILING
Support bracket
& fastening hardware
may be required.
See page 13.
One-Piece Door with Track
Slack in belt tension
is normal when
garage door is closed.
Access
Door
Safety
Reversing
Sensor
Safety
Reversing
Sensor
Gap between floor and bottom of door
must not exceed 1/4".
You may find it helpful to refer back to this page as you proceed with the installation of your opener.
Safety
Reversing Sensor
Safety
Reversing Sensor
Floor must be level
across width of door
4
Page 5

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
Multi-Function
Door Control Panel
2-Conductor Bell Wire
White & White/Red
CEILING MOUNT ONLY
UP
Header Bracket
Light Lens (2)
Belt
Pulley Bracket
Door Bracket
Single-Function Remote Control
Transmitter (1)
Trolley
Remote Control
Transmitter Visor Clip
Door Bracket Plate
One-Piece
T-rail
Safety Reversing Sensor (2)
(1) Sending Eye
(1) Receiving Eye
Belt Cap Retainer
Styrofoam
Belt
Curved Door
Arm Section
2-Conductor Bell Wire
with Connector (2 rolls)
White & White/Black
Straight Door
Arm Section
Safety Reversing Sensor
Mounting Bracket
With Slot (2)
Safety Reversing Sensor
Mounting Bracket
With Square Holes (2)
Installation Hardware
Hex Screw 5/16"-18x7/8" (4) Hex Screw #8x3/8" (2) 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) Nut 5/16"-18 (6) Lock Washer 5/16" (6)
Screw 6ABx1" (2) Handle Insulated Staples (10) Ring Fastener (3) Rail Grease Rope Dry Wall Anchors (2)
5
Safety Labels
and
Literature
"C" Wrap (2)
Safety Reversing Sensor
Installation Hardware
Lag Screw 1/4"x1-1/2" (4) Carriage Bolt 1/4"-20x1/2" (4) Lock Nut 1/4"-20 (4) Wing Nut (2) Hex Screw 1/4"-20x1-1/2" (2) Screw #10-32x3/8" (4) Lock Nut #10-32 (4) Insulated Staples (20)
Page 6
Assembly Section: Pages 6 – 7
Assembly Step 1

Attach the T-rail to the Opener

• Remove the two washered screws mounted in top of opener.
• Align T-rail and styrofoam over opener sprocket.
• Cut tape from T-rail, belt and styrofoam.
REMOVE STYROFOAM.
• Insert both washered screws through the T-rail into the opener. Tighten both screws securely.
Remember to use only these screws!
screws will cause serious damage to the opener.
• Position belt over the opener sprocket.
Any other
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
USE ONLY THIS
TYPE AND SIZE 
SCREW
5/16"-18x1/2"
Belt
T-rail Hole
Washered Screw
5/16"-18x1/2"
T-rail
Hole
Styrofoam
Opener
Sprocket
Assembly Step 2

Set the Belt Tension

• By hand, thread the spring trolley nut on the threaded shaft until it is finger tight against the trolley.
• 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.
Do not overtighten.
Open End
Wrench
Belt
Nut
Ring
T-rail
Hole
Trolley
Trolley
Threaded
Shaft
Spring
Trolley Nut
Trolley
Threaded Shaft
Nut Ring
Insert Slot
Trolley
Square End
Screw-
driver
6
Page 7
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.
Hardware Shown Actual Size
Hex Screw
#8x3/8"
Belt
Hex Screws
#8x3/8"
Belt Cap Retainer
Opener Sprocket
Mounting Plate
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.
could result in severe injury or death.
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.
Repairs to cables, spring assemblies and other hardware
An improperly balanced door
7
Page 8
Vertical
Guideline
Finished
Ceiling
Vertical
Guideline
Header
Wall
2x4 Structural
Supports
Installation Section: Pages 8 – 23
Installation Step 1

Determine Header Bracket Location

Installation procedures vary according to garage door types. Follow the instructions which apply to your door.
SECTIONAL Doors and
ONE-PIECE Door With Track
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).
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.
service.
• 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 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".)
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.
The door might
Call for garage door
only
if
• 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.
Proceed to Step 2, page 10.
Door
Sectional door with
curved track
Ceiling
Header
Wall
2"
Highest Point
of Travel
8
Track
Header
Wall
Highest Point
Door
One-piece door with
horizontal track
2"
of Travel
Track
Page 9

ONE-PIECE Door Without Track

Read the Safety Instructions on page 8. They also apply to doors without tracks.
• 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.
Header Wall
Highest Point
of Travel
Header Wall
Vertical
Centerline
Garage Door
2x4
Vertical
Centerline of
Unfinished
Ceiling
OPTIONAL CEILING MOUNT
Header
Wall
Highest Point
of Travel
Structural
Supports
2x4
Door
Jamb
Hardware
Distance
One-piece door without track
jamb 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.
Door
Distance
Pivot
One-piece door without track
pivot hardware
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
Page 10
Installation Step 2

Install the Header Bracket

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.
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).
Vertical
Header
Wall
2x4
Structural
Support
Highest
Point of Travel
(of Garage Door)
Header Bracket
CEILING MOUNT ONLY
UP
Center
Line
Vertical
Center
Line
Garage
Door
5/16"x18x1-7/8"
Door
Spring
• 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
Lag Screws
CEILING MOUNT ONLY
UP
The nail hole is for positioning
only. You must use lag screws to
mount the header bracket.
Optional 
Wall Mounting
Holes
Hardware Shown Actual Size
Lag Screw
5/16"-18x1-7/8"
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.
Ceiling Mounting Holes
CEILING MOUNT ONLY
UP
The nail hole is for positioning only.
You must use lag screws to mount
the header bracket.
Door
Spring
6" Maximum
Garage
Door
Header Bracket
Finished
Ceiling
Vertical
Center Line
UP
Lag Screws
5/16"x18x1-7/8"
Header
Wall
Vertical
Center Line
10
Page 11
Installation Step 3

Attach the T-rail to the Header Bracket

Header Wall
Header Bracket
Belt Pulley
Bracket
T-rail
• Position the opener on the garage floor below the header bracket. Use packing material as a protective base.
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.
• 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
Header Bracket
Garage
Door
Clevis Pin
5/16"x2-3/4 "
Hardware Shown Actual Size
Belt Pulley
Bracket
T-rail
Temporary
Support
Clevis Pin
5/16"x2-3/4"
Ring Fastener
11
Page 12
Installation Step 4

Position the Opener

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 inner and outer sections. The trolley can remain disconnected until Step 12 is completed.
CAUTION
To prevent damage to steel, aluminum, fiberglass or glass panel doors, do not rest the opener on the door without using a 2x4.
2x4
T-rail
Door
Laid Flat
Stepladder
Trolley
Release Arm
Trolley

ONE-PIECE Door without Track

• 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.
Header
Bracket
Top of Opener
Top of Door
Stepladder
12
Page 13
Installation Step 5

Hang the Opener

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.
WARNING
The opener could fall and injure someone if it is not properly secured.
securely to structural supports of the garage.
Figure 1
Fasten the opener
Structural
Supports
Measure the distance from
each
side of the opener
to the structural support.
• Cut both pieces of the hanging bracket to required lengths.
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.
• 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.
Grease the top and underside of the rail surface where the trolley slides with rail grease.
Hardware Shown Actual Size
Measure Distance
5/16"-18x7/8"
Hex Screws
5/16" Lock Washers
5/16"-18 Nuts
Figure 2
Bracket
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
Lag Screws
5/16"x1-7/8"
— FINISHED CEILING —
Hidden 
Support
Lag Screws
5/16"x1-7/8"
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
Hex Screw
5/16"-18x7/8"
Lag Screw
5/16"-18x1-7/8"
Nut 5/16"-18
Lock Washer 5/16"
13
Page 14
Installation Step 6

Install the Multi-Function Door Control Panel

• 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 Panel 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, thereby resulting in a short.
• Receiver terminals and the antenna are located on the right side 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 Maintenance Instruction label in a prominent location on the inside of the garage door.
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.
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.
Hardware Shown Actual Size
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.
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, 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.
door is properly adjusted, you can see it clearly, and there are no obstructions to door travel.
Do NOT connect the power and operate the opener at this time.
full
open
close
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
but where the garage door is visible.
Activate the opener only when the
The trolley will travel to the
position but will not return to the
position until the sensor beam is
Multi-Function
Door Control Panel
Terminal Screws
RED
WHITE
- 1
- 2
Dry Wall Anchors
Lock Button
LOCK
Multi-Function
Door Control Panel
6ABx1" Screw
Multi-Function Door Control
LIGHT
Light Button
Door
Control
Button
Insulated Staples
2-Conductor
Bell Wire
Right Side
Panel of
Opener
14
1
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.
Sears Roebuck & Co. Sears Canada Inc., Toronto Assembled in Mexico - Assemblé du Mexique
PAT. #RE29,525; 4,750,201; 4,806,930 Other Patents Pending.
Antenna
Terminal
2 3
9
9
1
7
3
5
KG
PART NO: Nº DE PIÈCE:
D.O.C. CERT. NO.
M.D.C. CERT. NO.
Opener Screws
1
7
3
5
KG
DATE:
132C2105-1
Page 15
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.
• If the bulbs burn out prematurely due to vibration, replace with a "Garage Door Opener" bulb.
Install the lenses
• Slide lenses into guides. 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
Tab
75 Watt Maximum Light Bulb
Lens Slot
Lens
Guide
Lens Tab
75 Watt
Maximum
Light Bulb
Installation Step 8

Attach the Manual Release Rope and Handle

Trolley
Rope
NOTICE
Overhand
Knot
Trolley
Release Arm
Manual
Release Handle
Overhand
Knot
WARNING
Do not use the red handle to pull the door open or closed.
untied and you could fall.
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.
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.
The rope knot could become
Use the manual
15
Page 16
Installation Step 9

Electrical Connections

To reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will type outlet.
If the plug doesn't fit into the outlet you have, contact a qualified electrician to install the proper outlet.
only
fit into a grounding
WARNING
To prevent electrocution or fire,
and wiring must be in compliance with local electrical and building codes.
installation
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 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.
grounded.
• Reinstall the cover.
and
from the circuit
The opener must be
Green
Ground
Screw
Ground Wire
Permanent wiring
connection
Ground Tab
Black
Wire
To avoid installation difficulties,
do not run the opener at this time.
16
White Wire
Black
Wire
Page 17
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.
Installation procedures are the same for sectional and one-piece doors.
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.
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 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.
Sensor Beam
4-6" max.
above floor
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.
17
Page 18
Installation Step 10

Install the Safety Reversing Sensor

Figures 2, 3 and 4 show recommended assembly of bracket(s) and "C" wrap based on the ation of the sensors on each side of the garage door as shown on page 17, or on the 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.
For Garage Wall or Door Track
Fasten the "C" wraps to the mounting brackets
having square holes, using the hardware shown in Figure 2.
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.
For 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.
• 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.
• 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.
wall
install
garage door tracks
Installation
Figure 2
Garage WALL or DOOR TRACK Installation
#10-32
Lock Nuts
Figure 3
Garage
Door Track
Drill 3/8"
Holes
1/4"-20x1/2"
Carriage Bolts
Figure 4
Inside
Garage
Mounting Bracket
With Square Holes
Garage DOOR Track Installation
Inside
Garage
Wall
1/4"-20 Lock Nuts
Garage WALL Installation
1/4x1-1/2"
Lag Screws
 
Wall
Mounting Bracket
with Slot
1/4"-20
Lock Nuts
1/4-20x1/2" Carriage Bolts
(with square shoulder)
Mounting Bracket
with Square Holes
"C" Wrap
#10-32x3/8"
Screws
Mounting Bracket
with Square Holes
"C" Wrap
"C" Wrap
#10-32x3/8"
Screw
Alternate Wall Mount
Inside
Garage
Wall
Mounting Bracket
with Slot
Garage
Floor
#10x32
Lock Nut
Mounting Bracket
with Square Holes
"C" Wrap
Sensor
Indicator Light
Hardware Shown Actual Size
1/4x1-1/2"
Lag Screw
18
Figure 6Figure 5
Staples
Alternate Floor Mount
Inside
Garage
Wall
"C" Wrap
1/4"-20x1/2"
Carriage Bolts
Indicator
Light
Sensor
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Attach with
concrete anchors
(not provided)
Garage
Floor
1/4"-20
Lock Nut
Page 19
• 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.
Safety Sensor
Wire Connector
Figure 8
Figure 7
Tab should be flush with back of connector
White Tab
Push connector in until you hear a click
Connect Wire to
Opener Terminals
Sensor
Bell Wire
— Finished Ceiling —
Invisible Light Beam
Protection Area
Sensor
Bell Wire
Wall Control
Connections
(dotted line)
1
OPENER TERMINAL SCREWS
2 3
Sensor
Connections
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 for final adjustment. Securely tighten the
eye
wing nut.
Wing Nut
receiving eye
"C" Wrap
Wing Nut
Sensor
"
Indicator Light
1/4-20x1-1/2"
Hex Bolt
"
to allow
sending
Wire
Run paired wires from both sensors to the opener. Use insulated staples to secure the wire to wall and ceiling.
Strip 1/4" of insulation from each set of wires. Separate white and white/black wires sufficiently to connect to the opener terminal screws: white to 2 and white/black to 3.
• 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
connections and alignment are correct.
If the indicator light is
off
in the
receiving eye
(and the invisible light beam path is not obstructed), alignment is required.
• Loosen the receiving eye wing nut to allow slight
rotation of unit. Adjust sensor vertically and/or horizontally until the green indicator light
with a steady light
• When indicator lights are
.
glowing steadily
glows
in both
units, tighten the wing nut in the receiving eye unit.
Trouble Shooting
1. If the
sending eye
steadily
indicator light does not
after installation, check for:
• Electric power to the opener.
• A short in the white or white/black wires. These can occur under staples or at screw terminal connections.
• Incorrect wiring between sensors and opener.
• An open wire (wire break).
• Lock switch on Multi-Function Door Control Panel is on. Turn it
2. If the sending eye indicator light
off
.
glows steadily
the receiving eye indicator light doesn't:
• Check alignment.
• Check for an open wire to the receiving eye.
Hardware Shown Actual Size
1/4-20x1-1/2"
Hex Bolt
Wing Nut
19
glow
but
Page 20
Installation Step 11
CAUTION

Fasten Door Bracket

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.
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.

SECTIONAL Door Installation Procedure

Door
Bracket
Location
Header Bracket
Vertical
Guideline
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, aluminum, steel, doors with glass panel, etc).
Carriage Bolt
5/16"-18x2-1/2"
Door
Bracket
Vertical
Guideline
Inside Edge
of Door or
Reinforcement Board
Figure 1
Vertical
Reinforcement
Lock Washer
5/16"
Nut
5/16"-18
Figure 2
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.
20
Door Bracket
Plate
Hardware Shown Actual Size
Nut 5/16"-18
5/16"-18x2-1/2"
Lock Washer 5/16"
Carriage Bolt
Page 21
Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fiberglass, aluminum, steel,
door with glass panel, etc.).
Header Wall
Vertical
Centerline of
Garage Door
– Finished Ceiling –
Header
Bracket
Door
Bracket
2/4/92 - 4/7/92
2x4
Door
Bracket
Door Bracket
Plate
Inside Edge
of Door or
Reinforcement Board

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.
• Center the bracket (with or without the plate 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.
Hardware Shown Actual Size
Nut 5/16"-18
Lock Washer 5/16"
Carriage Bolt
5/16"-18x2-1/2"
21
Page 22
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:
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.
Inner Trolley
Outer Trolley
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.
Clevis
Pin
Straight
Figure 1 Figure 2
Clevis Pin
Ring 
Fastener
Door
Bracket
Door Arm
Curved
Door Arm
Hole Alignment Alternative
Figure 3:
If holes in curved arm are
arm, disconnect straight arm. Cut about 6" from the solid end. Reconnect to trolley with
down
as shown.
• Bring arm sections together.
• Find two pairs of holes that line up and join with screws, lock washers and nuts.
Hardware Shown Actual Size
above
holes in straight
cut end
Nuts
5/16"-18
Nuts
5/16"-18
Washers
Door Bracket
Washers
Lock
5/16"
Lock
5/16"
Rope
Manual
Release
Handle
Screws
5/16"-18x7/8"
Screws
Nut 5/16"-18
Hex Screw
5/16"-18x7/8"
Lock Washer 5/16"
Ring Fastener
Clevis Pin
5/16"x1"
5/16"-18x7/8"
Figure 3
Cut This End
Proceed to Adjustment Step 1, page 24. Trolley will re-engage automatically when the opener is operated.
22
Page 23

All ONE-PIECE Doors

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.
Door
Bracket
Clevis Pin
Straight
Door Arm
Ring
Fastener
Screws
5/16"-18x7/8"
Lock
Washers
5/16"
Nuts
5/16"-18
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.
Door Arm
Fully Closed
Trolley
Door Arm
Connector Hole
Door Arm
Connector Hole
Fully Open
Trolley
Curved
Door Arm
Closed
Door
Open Door
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.
Door with
Backward Slant
Door Arm
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
Page 24
Adjustment Section: Pages 24 – 26
Adjustment Step 1

Adjust the UP and DOWN Limits

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
The door will interferes with door travel. The door will 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.
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.
stop
stop
when moving up or down.
in the
up
direction if anything
reverse
in
WARNING
Improper adjustment of the travel limits will interfere with the proper operation of the safety reverse system.
when required and could seriously injure or kill someone under it.
system following all adjustments to the travel limits. See page 26.
Left Side
Panel
The door might not reverse
Test the safety reverse
Limit
Adjustment
Screws
Adjustment Label
How and When to Adjust the Limits
If the door does not but opens
Increase 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 does not
Increase adjustment screw counterclockwise. One turn equals 2" of travel.
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.
at least
up
travel. Turn the UP limit adjustment
down
open completely
five feet
close completely
travel. Turn the DOWN limit
If the opener
Decrease adjustment screw clockwise. One turn equals 2" of travel.
If the door 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.
24
reverses
down
travel. Turn the DOWN limit
reverses
in fully closed position
when closing and
Page 25
Adjustment Step 2

Adjust the Force

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 interferes with its travel. The door will
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 direction and 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.
stop
in the updirection if anything
nuisance reversals
stops
in the
up
9
1
in the
direction. Weather
9
reverse
down
1
in the
WARNING
Too much force on the door will interfere with the proper operation of the safety reverse system.
when required and could seriously injure or kill someone under it.
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.
The door might not reverse properly
Do not increase the
Force
Adjustment
Controls
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.
3. Release transmnitter button. Opener has learned code.
TO ERASE ALL RECEIVER CODES
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.
1
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.  
Sears Roebuck & Co. Sears Canada Inc., Toronto Assembled in Mexico - Assemblé du Mexique
PAT. #RE29,525; 4,750,201; 4,806,930 Other Patents Pending.
2
9
9
1
7
7
3
5
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.
M.D.C. CERT. NO.
3
1
3
5
KG
DATE:
132C2105-1
7
3
5
KG
7
3
5
KG
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.
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.
Right Side Panel
of Opener
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.
25
Page 26
Adjustment Step 3
Test the Protector System
• 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.
®
WARNING
Without a properly working safety reversing sensor, persons (particularly children) could be seriously injured or killed if trapped by a closing garage door.
Safety Reversing Sensor
Repeat this test once a month.
Safety Reversing Sensor
Adjustment Step 4

Test the Safety Reverse System

Test:
• Place a 2x4 laid flat on the floor, centered under
the garage door.
• Operate the door in the down direction.
must reverse on striking the obstruction.
Adjustment:
If the door 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.
If the door will not reverse after repeated adjustment attempts, call for professional garage door service.
stops
on the obstruction, it is not traveling
The door
WARNING
Failure to test and adjust the safety reverse system may result in serious injury or death from a closing garage door.
once a month and adjust as needed.
GARAGE DOOR
2x4 laid flat
Important safety check:
Repeat Adjustment Steps 1, 2 and 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).
Repeat this test
• Any repair to or buckling of the garage floor.
• Any repair to or adjustment of the opener.
26
Page 27

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 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.
cause the door to fall rapidly, causing injury or death to persons
6. KEEP GARAGE DOORS PROPERLY BALANCED. See page 3.
reverse when required and could result in severe injury or death
An improperly balanced door may not
. 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.
MUST
reverse on contact
Weak or broken springs may
.

Care of Your Opener

Limit and force adjustment controls
Limit Controls
Adjustment Label
(Located on the left side panel)
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.
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 and 25.)
Repeat the safety reverse test. Make any necessary adjustments. (See page 26.)
Force Controls
9
7
KG
Adjustment Label
(Located on the right side panel)
9
1
3
5
1
7
3
5
KG

Maintenance Schedule

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 radio controls and remote controls is not recommended. If service is needed, call the toll­free number listed on the back page.
The remote control battery:
The green test light will glow and the opener will operate when the remote control is activated.
If the test light is
dim or off
, replace the battery.
The 12V battery should produce power for at least a year.
Dispose of your old battery properly.
Once a Year
Oil door rollers, bearings and hinges.
The opener does not require additional lubrication. Do not grease the door tracks.
27
Page 28

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 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.
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.
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.
too soon, the door will The opener lights will
reverse.
blink for 5 seconds
safety reversing sensor causes the door to reverse. 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.
If you release them
when the
WARNING
Weak or broken springs could allow an open door to fall (either rapidly or unexpectedly), resulting in serious injury, death or property damage.
rope and handle closed.
Trolley
Manual disconnect
The lockout feature
prevents the trolley from reconnecting auto­matically. 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 DOWN operation.
If possible, use the manual release
only
when the door is fully
To open the door
Trolley
Release Arm
manually:
The door should be fully closed if possible. Pull down on
NOTICE
the red manual release handle and lift the door manually.
Manual
Release Handle
(Pull Down)
To reconnect the door to the opener, press the Door Control push bar.
position
Trolley
Release Arm
Trolley
NOTICE
Manual
Release Handle
(Pull Down & Back
Towards Opener)
Lockout position

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. Press again to
cycle or to Light Feature - Door Control Panel: Press the
Light button. If the opener light is If the opener light is
automatic cycle) it will turn But if you use the Light button to turn the light(s)
and then activate the opener, the light(s) will turn after 4-1/2 minutes.
The Light button will not control the opener lights when the door is in motion.
reverse
stop
the door while it's opening.
the door during the closing
on,
(even in the 4-1/2 minute
off.
off,
it will turn on.
on
off
Lock Feature - Door Control Panel: The Lock feature is designed to prevent operation of the door from remote controls. However, the door will
and close
from the Door Control push bar, the
Outside Keylock and the Keyless Entry Accessories.
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 panel is activated.
28
open
Page 29

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.
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 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.
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.
to operate the Door Control or remote control transmitter(s).
A moving garage door could injure or kill someone under it.
when you can see the door clearly, it is free of obstructions, and is properly adjusted.
Do not allow children
Activate the opener only
To Add A Remote
1. Press and
hold
the remote push button. See
Figure 1.
2. Then press and release the "Smart" button on the right side of the opener in 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.
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.
Code programming instructions are also located on the opener panel.
Figure 1
Figure 2
Single Function Remote Control
Battery
Indicator Light
Push Button
Garage Door Opener 
(With "Smart" Button)
1
"Smart"
Button
Indicator
Light
2
9
7
5
KG
3
9
1
7
3
5
KG
1
3
29
Page 30

Having a Problem?

Situation Probable Cause & Solution
The opener doesn't operate from either the Door Control or the remote control:
Opener operates from the remote, but not from Door Control:
The door operates from the Door Control, but not from 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.
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.
1. If your model has the Lock feature, turn it
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.
off.
The remote control has short range:
Opener noise is disturbing in living quarters of home:
The garage door opens and closes by itself:
The door doesn't open completely:
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.
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.
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.
1. If the door has been working properly but now doesn't open all the way, increase the
up force.
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.
See page 25.
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
Page 31
Having a Problem?
Situation Probable Cause & Solution
(continued)
The door opens but won't close:
The door reverses for no apparent reason and opener lights don't blink:
The door reverses for no apparent reason and opener lights blink for 5 seconds after reversing:
The opener lights:
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.
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
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.
. . . don't turn on:
Replace the light bulbs (75 watts maximum). Use a bulb if regular bulb burns out.
fully closed
position, decrease the travel limits (page 24).
standard neck
garage door opener
The opener strains or maximum force is needed to operate door:
The opener motor hums briefly, then won't work:
The opener won't operate due to power failure:
. . . don't turn off:
Is the Light feature on? Turn it
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.
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
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.
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.
Do not increase the force to operate the opener.
. If the belt was removed and reinstalled, the motor may be out
off.
31
Page 32

Repair Parts

Rail Assembly Parts

2

Installation Parts

5
3
1
6
7
KEY PART
4
NO. NO. DESCRIPTION
1 1A995 Master link kit 2 41A3588 Belt pulley bracket 3 41B3869-1 Complete trolley assembly 4 183B99 One-piece T-rail 5 41A3589 Full belt assembly 6 41B4103 Tensioner assembly 7 109B33 Trolley clip
2
LOCK
LIGHT
12VDC
3
1
KEY PART NO. NO. DESCRIPTION
1 41A4202A Multi-function door control panel 2 10A14 12V battery 3 29C128 Transmitter visor clip 4 41A3984-7 Single-function remote control
case, cover & screw only 5 41A2828 Manual release rope & handle assy. 6 217A238 2-conductor bell wire, white & white/red 7 12B374-1 Door bracket 8 12B380-1 Door bracket plate 9 41A4353-1 Header bracket w/clevis pin & fastener
10 41A4373 Safety sensor kit
(receiving and sending eye only)
11 41B4115 2-conductor bell wire with connector
white & white/black (2 rolls)
12 178B35 Curved door arm section 13 178B34 Straight door arm section 14 12B483 "C" wrap bracket 15 12B484 Square hole bracket 16 12B485 Slotted bracket
NOT SHOWN
41A2770-1 Installation hardware bag
(includes hardware listed on page 5).
41A4116 Safety sensor hardware 114A1857 Owner's manual
14
11
15
4
6
5
NOTICE
CEILING MOUNT ONLY
UP
9
7
8
10
13
12
16
32
Page 33

Opener Assembly Parts

Repair Parts
1
2
9
4
7
3
5
6
8
8
10
11
19
18
20
3
12
9
13
5
17
16
15
14
Brown
Wire
Drive Gear
(Down) Contact
Center Limit
Contact
LIMIT SWITCH ASSY.
DN
(Up)
Contact
Grey Wire
UP
Yellow
Wire
KEY PART NO. NO. DESCRIPTION
1 41A4371 Belt cap retainer 2 41A3587 Gear and sprocket assembly
Complete with:
Spring washer Thrust washer Retaining ring Bearing plate Roll pins (2) Drive gear and worm gear Helical gear w/retainer and grease
3 41A2817 Drive/worm gear kit w/grease
Roll pins (2) 4 41B4245 Line cord 5 41C4253 Wire harness assembly with plug 6 41A4252-6B Receiver logic board assembly
Complete with: Logic board,
End panel w/all labels 7 41A4435 End panel w/all labels 8 175B88M Light socket 9 108D34 Lens
KEY PART NO. NO. DESCRIPTION
10 30B363 Capacitor - 1/2HP 11 12A373 Capacitor bracket 12 41A3150 Terminal block w/screws 13 41D3058 Universal replacement motor &
bracket assembly Complete with: Motor, worm, bracket, bearing assembly, RPM
sensor 14 41A3583-3 Cover 15 41A2818 Helical gear & retainer w/grease 16 41D3452 Limit switch assembly 17 41C4398A RPM sensor assembly 18 41A2826 Shaft bearing kit 19 41A2822A Interrupter cup assembly 20 41A4416 End panel
NOT SHOWN
41A2825 Opener assembly hardware kit
(includes screws not designated
by a number in illustration).
33
Page 34

Accessories Available For Your Opener

Model 1702LMC
Model 60LMC
Model 1778LMC
Model 1770LMC
Outside Quick Release:
Required
for a garage with NO
access door.
Outside Keylock:
Opens the garage door automatically from outside when remote control is not handy .
8 foot Complete Rail:
To allow an 8 foot door to open fully .
10 foot Complete Rail:
To allow a 10 foot door to open fully .
Model 61LMC
Model 81LMC
Model 82LMC
Model 83LMC
Single-Function Standard Size Remote Control:
Includes visor clip.
"Smart" Remote Control:
Includes visor clip.
2-Channel “Smart” Remote Control:
Includes visor clip.
3-Channel “Smart” Remote Control:
Includes visor clip.
Model 66LMC
Model 58LMC
LOCK
LIGHT
Model 99LMC
7 8
5 6
3 4
1 2
Keyless Entry:
Enables homeowner to operate garage door opener from outside
Model 84LMC
4-Channel “Smart” Remote Control:
Includes visor clip.
by entering code on specially designed keyboard.
Multi-Function Door Control Panel:
Provides a Lock Feature which prevents operation of garage door opener from portable remotes and a
Model 64LMC
Multi-Function Mini Remote Control:
With key ring & Velcro fastening strip.
Light Feature for constant light.
Security Remote Control:
ENTER
Enables homeowner to operate garage door opener by entering 2, 3, 4, or 5 digit code from
9 0
backlit keyboard. Includes visor clip.
34
Page 35

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
Page 36
LIFT-MASTER SERVICE
IS ON CALL
OUR LARGE SERVICE ORGANIZATION
SPANS AMERICA AND CANADA
INSTALLATION AND SERVICE INFORMATION IS AS
NEAR AS YOUR TELEPHONE SIX DAYS A WEEK.
SIMPLY DIAL OUR TOLL FREE 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
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.

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
• MODEL NUMBER
ADDRESS ORDERS TO:
CHAMBERLAIN MFG., CANADA INC.
230 Bayview Drive
Barrie, Ont., Canada L4N 5E9
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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