Chamberlain Garage Door Opener Series 1200 User Manual

Garage Door Opener

For Residential Use Only

(Model Series 1200 - Canada )

Model 1260 - 1/2HP

Model 1250 - 1/3HP

Model 1255 - 1/2HP

Model 1245 - 1/3HP

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 of the opener are required to ensure safe operation.

■ The model number label is located under the light lens on the front panel 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

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

To avoid damage to the garage door and

opener, disable locks before installing and

operating the opener. Use a wood screw or nail

to hold locks in the "open" (unlocked) position.

Operation at other than 120V 60 Hz will cause

opener malfunction and damage.

An unbalanced garage door might not reverse

when required and someone under the door

could be seriously injured or killed.

If your garage door binds, sticks or is out of

balance, call for professional garage door

service. Garage doors, door springs, cables,

pulleys, brackets and their hardware are under

extreme tension and can cause serious injury

or death. Do not try to loosen, move or adjust

them yourself!

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

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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.

See page 13.

Horizontal and vertical reinforcement

is needed for lightweight garage doors

(fiberglass, steel, aluminum, door with glass panels, etc.).

See page 20 for details.

Slack in chain tension

is normal when

garage door is closed.

Header Wall

Extension Spring

Torsion Spring

Door Center

Access Door

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.

See page 13.

Slack in chain tension

is normal when

garage door is closed

Header

Wall

One-Piece Door with Track

Slack in chain 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

You may find it helpful to refer back to this page as

you proceed with the installation of your opener.

Safety

Reversing Sensor

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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.

(Models 1260 & 1250)

(Models 1255 & 1245)

LOCK

LIGHT

Sprocket Cover

Remote Control

Transmitter (1)

with 12V battery

Multi-Function

Door Control Panel

Lighted Door Control Button

w/ 6ABx1-1/2" Screws

Styrofoam

(Models 1260 & 1250)

Chain

Remote Control

Transmitter Visor Clip

Light Lens (2)

2 Conductor Bell Wire

White & White/Red

"C" Wrap (2)

(Models 1255 & 1245)

One-Piece

T-rail

Door Bracket

Light Lens (1)

Trolley

CEILING MOUNT ONLY

Door Bracket Plate

Chain

Pulley Bracket

Header Bracket

Curved Door

Arm Section

Straight Door

Arm Section

Safety Reversing Sensor

Mounting Bracket

With Slot (2)

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye)

with

2-Conductor White & White/Black Bell Wire

attached

Safety Labels

and

Literature

Safety Reversing Sensor

Mounting Bracket

With Square Holes (2)

Safety Reversing Sensor

Installation Hardware Kit #41A4116

Installation Hardware

Kit #41A2770

Lag Screw 1/4"x1-1/2" (4)

Carriage Bolt 1/4"-20x1/2" (4)

Lock Nut 1/4"-20 (4)

Hex Screw 5/16"-18x7/8" (4)

Hex Screw #8x3/8" (2)

Screw 6ABx1" (2)

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)

Insulated Staples (20)

Lock Washer 5/16" (6)

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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.

• Remove the two washered screws mounted in top

of opener.

• Position T-rail at a 45˚ angle to opener so one hole

in T-rail and opener line up.

USE ONLY THIS

TYPE AND SIZE

Washered Screw

5/16"-18x1/2"

SCREW

• Thread one of the washered screws part way in.

Use only these screws! Use of any other screws

will cause serious damage to door opener.

Styrofoam

T-rail

Hole

• Align T-rail and styrofoam over opener sprocket.

Cut tape from T-rail, chain and styrofoam.

Chain

• REMOVE STYROFOAM.

Assembly Step 2

WARNING

Attach Chain to Sprocket and

Install Sprocket Cover

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 chain over the opener sprocket. If

necessary, loosen the outer nut on the trolley to

obtain more chain slack.

• Insert the second washered screw.

CAUTION: Use only the screw previously

removed from opener!

• Tighten both screws securely through the T-rail

into the opener as shown.

USE ONLY THIS

TYPE AND SIZE

SCREW

Washered Screw

5/16"-18x1/2"

Install The Sprocket Cover:

Opener

Sprocket

• Insert the back tab in the opener slot. Squeeze the

cover slightly and insert the front tab in the slot on

the mounting plate.

Sprocket

Cover

Back Tab Slot

Top of Opener

Front Tab Slot

Mounting

Plate

Proceed to Assembly Step 3, Page 7

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Assembly Step 3

Tighten the Chain

Lock

Washer

Outer Nut

To Tighten Outer Nut

• Spin the inner nut and lock washer down the

threaded shaft, away from the trolley.

Inner Nut

• To tighten the chain, turn outer nut in the direction

shown. As you turn the nut, keep the chain

from twisting.

To Tighten

Inner Nut

• When the chain is approximately 1/2" above the

base of the T-rail at its midpoint, re-tighten the

inner nut to secure the adjustment.

Trolley

Sprocket noise can result if chain is either too

loose or too tight.

Chain

When installation is complete, you may notice some

chain droop with the door closed. This is normal. If

the chain returns to the position shown when the

door is open, do not re-adjust the chain.

1/2 Inch

Base of T-rail

NOTE: During future maintenance, ALWAYS

pull the manual release handle to disconnect

trolley before adjusting chain.

You have now finished assembling your garage door opener. Please read the following

warnings before proceeding to the installation section.

IMPORTANT INSTALLATION INSTRUCTIONS

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

may not reverse and 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.

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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 professional

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

Track

Header

Wall

• 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

Sectional door with

curved track

One-piece door with

horizontal track

Proceed to Step 2, page 10.

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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

FOR HEADER BRACKET

• 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

of Travel

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.

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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

5/16"x18x1-7/8"

Header

Bracket

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

U P

• Mark holes designated for ceiling mount only. Drill

3/16" pilot holes and fasten bracket securely to a

structural support with the hardware provided.

6" Maximum

Door

Spring

Lag Screws

5/16"x18x1-7/8"

Ceiling Mounting Holes

CEILING MOUNT ONLY

Header

Wall

Vertical

Center Line

Garage

Door

The nail hole is for positioning only.

You must use lag screws to mount

the header bracket.

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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.

Chain

Pulley

Bracket

• Position the chain 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 "

Chain

Pulley

Bracket

T-rail

Garage

Door

Temporary

Support

Hardware Shown Actual Size

Clevis Pin

5/16"x2-3/4"

Ring Fastener

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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.

2x4

laid flat

• Raise the opener onto a stepladder.

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

• 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).

Top of Door

• 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

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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.

• Cut both pieces of the hanging bracket to required

lengths.

Lag Screws

5/16"x1-7/8"

• Drill 3/16" pilot holes in the structural supports.

Measure

Distance

• 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.

5/16"-18x7/8" Screw

5/16" Lock Washer

5/16"-18 Nut

• 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

Hidden Support

— FINISHED CEILING —

Lag Screws

5/16"x1-7/8"

Grease the top and underside of the rail

surface where the trolley slides with rail

grease.

Bracket

(Not Supplied)

Hardware Shown Actual Size

(Not Supplied)

5/16"-18x7/8" Screw

5/16" Lock Washer

5/16"-18 Nut

Lag Screw

5/16"-18x1-7/8"

Hex Screw

5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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Installation Step 6

WARNING

Install the Door Control

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. Fasten the Lighted

Door Control Button securely with 6ABx1-1/2"

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 back 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 and 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.

Models 1260 & 1250

Multi-Function

Door Control Panel

Models 1255 & 1245

Page 28 explains how to operate the opener using

the door controls and the Lock & Light features

available on the Multi-Function Door Control Panel.

Terminal Screws

2-Conductor

Bell Wire

2-Conductor

Bell Wire

WHT

-2

RED -1

WHITE -2

Hardware Shown Actual Size

RED

-1

Lighted

Door

Control

Terminal

Screws

6ABx1-1/2" Screw

Lighted Door Control Button

Insulated

Staples

6ABx1" Screw

Multi-Function Door Control Panel

Opener

Terminal

Screws

Dry Wall Anchors

Lock Button

2-Conductor

Bell Wire

LOCK

LIGHT

Light Button

Door Control

Push Bar

Lighted

Door Control

Button

Multi-Function

Door Control Panel

Antenna

Back Panel

of Opener

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Installation Step 7

Install the Light(s) and the Lens(es)

Figure 1

Lens

Guide

Install the light(s)

• Install a 75 watt maximum light bulb in each

socket. The light(s) will turn ON and remain lit for

approximately 4-1/2 minutes when power is

connected. Then the light(s) will turn OFF.

Lens

Tab

Lens

Slot

• If the bulbs burn out prematurely due to vibration,

replace with a "Garage Door Opener" bulb.

75 Watt (Max)

Light Bulb

Install the lenses: (Models 1260 & 1250)

Figure 1

• Slide lenses into guides. Snap bottom tabs into

lens slots.

Figure 2

• Reverse the procedure to remove the lenses.

Screw

Install the lens: (Models 1255 & 1245)

Figure 2

• Locate and loosen (approximately 1/8") the two

screws near top of opener front panel. Position

lens against panel with slotted tabs directly below

screws. Slide lens up to seat tabs behind screws.

Snap bottom tabs of lens into panel slots.

Light

Lens

Panel

Lens Slot

75 Watt Max.

Light Bulb

Retighten top panel screws to secure lens.

Lens Tab

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

Release Arm

• 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.

Rope

NOTICE

The knot should be at least 1" from the end of the

rope to prevent slipping.

Manual

Release Handle

Overhand

Knot

• 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.

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Installation Step 9

Electrical Requirement

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.

Do NOT use an extension cord, 2-wire adapter,

or change the plug in any way to make it fit

your 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

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.

White Wire

Black

Wire

To avoid installation difficulties,

do not run the opener at this time.

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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

be injured or killed by a closing garage door.

Read and follow all instructions.

Installation procedures are the same for sectional

and one-piece doors.

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.

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.

Sensor

Beam

Sensor

Beam

4-6" max.

above floor

4-6" max.

above floor

Invisible Light Beam

Protection Area

Figure 1: Facing the door from inside the garage

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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

installation 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

Figure 3

Garage DOOR Track Installation

For Garage Wall or Door Track Installation

1/4"-20 Lock Nuts

Inside

Garage

Wall

• Fasten the "C" wraps to the mounting brackets

having square holes, using the hardware shown in

Figure 2.

Garage

Door Track

Mounting Bracket

with Square Holes

For Door Track Installation Only

Drill 3/8"

Holes

• Discard slotted bracket. Drill 3/8" holes in each

track and fasten securely with hardware as shown

in Figure 3.

"C" Wrap

For Wall Installation

1/4"-20x1/2"

Carriage Bolts

• 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.

Garage WALL Installation

• Finger tighten the lock nuts.

Figure 4

• 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.)

1/4x1-1/2"

Lag Screws

1/4-20x1/2" Carriage Bolts

(with square shoulder)

Inside

Garage

Wall

• 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.

"C" Wrap

Mounting Bracket

with Slot

Mounting Bracket

with Square Holes

1/4"-20

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.

Figure 5

Figure 6

Alternate Wall Mount

Alternate Floor Mount

Inside

Garage

Wall

Inside

Garage

Wall

Sensor with wire

Indicator Light

Mounting Bracket

with Slot

Mounting Bracket

with Square Holes

Mounting Bracket

with Square Holes

Mounting Bracket

with Slot

"C" Wrap

Attach with

concrete anchors

(not provided)

Sensor

with wire

"C" Wrap

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

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• Center each sensor unit in a "C" wrap with lenses

pointing toward each other across the door (see

Figure 7).

Figure 7

Wing

Nut

"C" Wrap

• 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.

Indicator

Light

Sensor

with Wire

1/4-20 x 1-1/2"

Hex Bolt

• Run the wires from both sensors to the opener.

Use insulated staples to secure 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.

Trouble Shooting

1. If the sending eye indicator light does not glow

steadily after installation, check for:

• Electric power to the opener.

• 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

• A short in the white or white/black wires. These

can occur under staples or at screw terminal

connections.

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.

• Incorrect wiring between sensors and opener.

• An open wire, (wire break).

• Lock switch on Multi-Function Door Control Panel

is on. Turn it off.

• 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.

2. If the sending eye indicator light glows steadily but

the receiving eye indicator light doesn't:

• Check alignment.

• When indicator lights are glowing steadily in both

units, tighten the wing nut in the receiving eye unit.

• Check for an open wire to the receiving eye.

Hardware Shown Actual Size

1/4-20x1-1/2"

Figure 8

Hex Bolt

Wing Nut

Connect Wire to

Opener Terminals

Finished

Ceiling

Bell Wire

Sensor

Connections

Wall Control

Connections

(dotted line)

Bell Wire

OPENER TERMINAL SCREWS

Sensor

Invisible Light Beam

Protection Area

Sensor

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Installation Step 11

CAUTION

Fasten Door Bracket

Follow instructions which apply to your door type

as illustrated below or on page 21.

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.

A horizontal brace should be long enough to be secured to 2 vertical supports. A vertical brace should

cover the height of the top panel.

The illustration shows one piece of angle iron as the horizontal brace. For the vertical brace, 2 pieces of

angle iron are used to create a "U"-shaped support. The best solution is to check with your garage door

manufacturer for an opener installation door reinforcement kit.

SECTIONAL Door Installation Procedure

Header

Bracket

Horizontal and vertical reinforcement

is needed for lightweight garage doors

(fiberglass, aluminum, steel,

doors with glass panel, etc).

Figure 1

Vertical

Reinforcement

Vertical

Guideline

Door

Bracket

Location

Carriage Bolt

5/16"-18x2-1/2"

Vertical

Guideline

Door

Bracket

Lock

Washer

5/16"

Nut

5/16"-18

Figure 2

Inside Edge

of Door or

Reinforcement Board

• Center the door bracket on the previously marked

Door Bracket

vertical guideline used for the header bracket

installation. Note the correct UP placement as

stamped inside the bracket.

• Position the bracket on the face of the door within

the following limits:

Hardware Shown Actual Size

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.

Nut 5/16"-18

Lock Washer 5/16"

Secure the bracket as shown in Figure 1 if there is

vertical reinforcement.

If your installation doesn't require vertical reinforce-

ment but does need top and bottom fastening holes

for the door bracket, fasten as shown in Figure 2.

Carriage Bolt

5/16"-18x2-1/2"

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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 Support

Header

Bracket

Horizontal and vertical

reinforcement is needed for

lightweight garage doors

(fiberglass, aluminum, steel,

door with glass panel, etc.).

Door

Bracket

Vertical

Centerline of

Garage Door

Inside Edge

of Door or

Reinforcement Board

Door

Bracket

• Center the bracket 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.

Hardware Shown Actual Size

• 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"

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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

Rope

Ring

Fastener

Manual

Release

Handle

Nuts

5/16"-18

Door

Straight

Bracket

Door Arm

Screws

5/16"-18x7/8"

Curved

Clevis Pin

Figure 1

Door Arm

Figure 2

Door Bracket

Hole Alignment Alternative

Figure 3:

• If holes in curved arm are above holes in straight

arm, disconnect straight arm. Cut about 6" from

the solid end. Reconnect to trolley with cut end

down as shown.

• Bring arm sections together.

• Find two pairs of holes that line up and join with

screws, lock washers and nuts.

Lock

Washers

5/16"

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.

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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

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 button/push bar. The

trolley will travel to the fully open position.

• Press the Door Control button/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.

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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 could

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. 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

button/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?

Left Side

Limit

Panel

If your door passes both of these tests, no limit

adjustments are necessary unless the reversing test

fails (See page 26).

Adjustment

Screws

Adjustment Label

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.

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.

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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 back

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.

Back Panel

of Opener

Adjustment Label

How and When to Adjust the Forces

Test the DOWN (close) force

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.

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.

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.

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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.

Professional service is required if the opener

closes the door when the safety reversing

sensor is obstructed.

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 button/push bar until down

travel is completed.

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 to

persons trapped by 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.

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IMPORTANT SAFETY INSTRUCTIONS

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.

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

Adjustment Label

(Located on the left side panel)

Adjustment Label

(Located on the back 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

Twice a Year

Manually operate door. If it is unbalanced or

Check chain tension. Disconnect trolley first.

binding, call for professional garage door service.

Adjust if necessary (See page 7.)

Check to be sure door opens & closes fully.

Adjust limits and/or force if necessary.

(See pages 24 and 25.)

Once a Year

Oil door rollers, bearings and hinges.

The opener does not require additional

lubrication.

Repeat the safety reverse test. Make any

necessary adjustments. (See page 26.)

Do not grease the door tracks.

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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 button/push bar down until

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 door starts to move.

• The Outside Keylock or Keyless Entry.

(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.

3. If opening, the door will stop (allowing space for

entry and exit of pets and for fresh air).

The door should be

fully closed if

possible. Pull down on

the red manual

Trolley

Release Arm

Trolley

4. If the door has been stopped in a partially open

position, it will close.

release handle and lift

the door manually.

To reconnect the door

to the opener, press

the Door Control

5. If obstructed while closing, the door will reverse.

6. If obstructed while opening, the door will stop.

Manual

Release Handle

(Pull Down)

NOTICE

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.

button/push bar.

Manual disconnect

position

If the sensor is not installed, or is not aligned correctly,

the door won't close from any remote control

transmitter. You can close the door with the Door

Control, the Outside Keylock, or Keyless Entry;

however, if you activate them until down travel is

complete. If you release them too soon, the door will

reverse.

The lockout feature

prevents the trolley from

reconnecting auto-

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

Release Arm

Trolley

The opener lights will blink for 5 seconds when the

safety reversing sensor causes the door to reverse.

Manual

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.

Release Handle

(Pull Down & Back

Towards Opener)

NOTICE

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. 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.

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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.

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.

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.

Below are instructions for programming your opener

to match any additional remotes you may purchase.

See available accessories on page 34.

Figure 1

Single Function Remote Control

To Add A Remote

Battery

Indicator Light

1. Press and hold the remote push button. See

Figure 1.

2. Then press and release the "Smart" button on the

back panel of the opener in Figure 2. The opener

lights on the panel will flash once.

Push Button

3. Release the remote push button.

Now the opener will operate when the remote control

push button is pressed.

Figure 2

Garage Door Opener

(With "Smart" Button)

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.

"Smart"

Button

Indicator

Light

END PANEL

Code programming instructions are also located

on the opener panel.

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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.

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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 chain was removed and reinstalled, the motor may be out of phase.

Remove the chain; 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 chain.

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.

The chain droops

or sags:

It is normal for the chain to droop slightly in the closed door position. Use the manual

release rope and handle to disconnect the trolley. If the chain returns to the normal

height when the trolley is disengaged and the door reverses on a 2x4 laid flat, no

adjustments are needed. (See page 7.)

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Repair Parts

Rail Assembly Parts

KEY

NO.

PART

NO.

DESCRIPTION

1A995

Master link kit

41A4813

41A3489

183B99

41D3484

83A4

Chain pulley bracket

Complete trolley assembly

One-piece T-rail

Full chain assembly

Rail grease

Installation Parts

12VDC

LOCK

LIGHT

NOTICE

KEY PART

NO.

DESCRIPTION

CEILING MOUNT ONLY

41A4202A

41A4166

10A14

Multi-function door control panel

Lighted door control button

12V battery

29C128

Transmitter visor clip

41A3984-7

41A2828

217A238

12B374

Transmitter case, cover & screw only

Manual rope & handle assy.

2-Conductor bell wire, white & white/red

Door bracket

12B380

Door bracket plate

41A4353

41A4373A

Header bracket w/clevis pin & fastener

Safety sensor kit

(receiving and sending eyes)

with 3' 2-conductor bell wire attached

Straight door arm section

"C" Wrap bracket

Curved door arm section

Square hole mounting bracket

Slotted mounting bracket

NOT SHOWN

178B34

12B483

178B35

12B484

12B485

41A2770

Installation hardware bag

(includes hardware listed on page 5).

41A4116

Safety sensor hardware

Owner's manual

114A1905

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Repair Parts

Opener Assembly Parts

(1255, 1245)

(1260, 1250)

(1255, 1245)

(Down)

Contact

LIMIT SWITCH ASSY.

Brown

Wire

D N

Grey

Wire

U P

Drive

Gear

Center Limit

Contact

(Up)

Contact

Yellow

Wire

KEY PART

NO. NO.

KEY PART

NO. NO.

DESCRIPTION

41D3058

Universal replacement motor &

bracket assembly

Complete with: Motor, worm, bracket,

bearing assembly, RPM sensor

31D380

Sprocket cover

41C4220A

Gear and sprocket assembly

Complete with:

Spring washer

Thrust washer

Retaining ring

41A3583-3

41A3583-1

Cover (1260, 1255)

Cover (1250, 1245)

Bearing plate

Roll pins (2)

Drive gear and worm gear

Helical gear w/retainer and grease

41A2818

41D3452

41C4398A

41C4246

41A2826

41A2822A

Helical gear & retainer w/grease

Limit switch assembly

RPM sensor assembly

Wire harness assy. w/plug

Shaft bearing kit

41A2817

Drive/worm gear kit w/grease

Roll pins (2)

41B4245

143D100

143D123

175B88

108D34

108D36

30B363

30B387

12A373

Line cord

Interrupter cup assembly

End panel w/all labels (1255, 1245)

End panels w/all labels (1260, 1250)

Light socket

41A4252-6C Receiver logic board assy.

(1260, 1250)

Complete with:

Logic board

Lens (1260, 1250)

End panel w/all labels

Light socket

Lens (1255, 1245)

41A4252-7C Receiver logic board assy.

(1255, 1245)

Capacitor - 1/2 HP

Capacitor - 1/3 HP

NOT SHOWN

Capacitor bracket

41A2825

Opener assembly hardware kit

(includes screws not designated by a

number in illustration).

41A3150

Terminal block w/screws

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Accessories Available For Your Opener

Model 1702LMC

Outside Quick Release:

Single-Function Standard Size

Remote Control:

Model 61LMC

Model 81LMC

Model 82LMC

Model 83LMC

Required for a garage with NO

access door.

Includes visor clip.

Outside Keylock:

Model 60LMC

Model 1708LMC

"Smart" Remote Control:

Operates the garage door

automatically from outside when

remote control is not handy.

Includes visor clip.

8 foot Complete Rail:

2-Channel "Smart" Remote

Control:

To allow an 8 foot door to open fully.

Includes visor clip.

Model 1710LMC

3-Channel "Smart" Remote

Control:

10 foot Complete Rail:

To allow a 10 foot door to open

fully.

Includes visor clip.

Model 66LMC

Model 58LMC

Model 84LMC

4-Channel "Smart" Remote

Control:

Keyless Entry:

Enables homeowner to operate

garage door opener from outside

by entering code on specially

designed keyboard.

Includes visor clip.

Multi-Function Door Control Panel: Model 64LMC

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

Enables homeowner to operate garage door opener by entering

2, 3, 4, or 5 digit code from backlit keyboard. Includes visor clip.

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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

Operational Noise

Sprocket noise......................................................................................................................................................7

Vibration noise (isolator kit) ................................................................................................................................30

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

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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

CHAMBERLAIN GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY

The Chamberlain Group 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 twelve full months from the date of purchase. The product must be used in complete accordance with

Chamberlain's instructions for installation, operation and care.

LIMITED WARRANTY ON MOTOR

Model 1260: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 60 full months

(5 years) from the date of purchase.

Model 1255: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 48 full months

(4 years) from the date of purchase.

Model 1250: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 36 full months

(3 years) from the date of purchase.

Model 1245: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 24 full months

(2 years) from the date of purchase.

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 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.

114A1905

Printed in Mexico

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