Lift-master 1245C 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

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.

®

is connected and

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

Attach chain to sprocket, install sprocket cover......6

Tighten the chain ....................................................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 light(s) and lens(es)..............................15

Attach manual release rope and handle ...............15

CONTENTS PAGE

Electrical requirement ...........................................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

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.

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 adjust

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

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 chain tension

is normal when

garage door is closed.

Extension Spring

OR

Torsion Spring

Access Door

Safety

Reversing

Sensor

Floor must be level

across width of door

Safety Reversing Sensor

One-Piece Door Installation

One-Piece Door without Track

Header

Wall

Model 1702LMC Outside Quick Release

Slack in chain tension

is normal when

garage door is closed

Access Door

is required if there is no access door.

FINISHED CEILING

Support bracket

& fastening hardware

may be required.

See page 13.

One-Piece Door with Track

Slack in chain 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

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)

LOCK

LIGHT

Multi-Function

Door Control Panel

(Models 1260 & 1250)

Light Lens (2)

(Models 1255 & 1245)

(Models 1255 & 1245)

Lighted Door Control Button

w/ 6ABx1-1/2" Screws

"C" Wrap (2)

2 Conductor Bell Wire

White & White/Red

Remote Control

Transmitter (1)

with 12V battery

Remote Control

Transmitter Visor Clip

One-Piece

T-rail

Sprocket Cover

Styrofoam

Chain

Door Bracket

Light Lens (1)

CEILING MOUNT ONLY

UP

Header Bracket

Safety Reversing Sensor

Mounting Bracket

With Square Holes (2)

Chain

Pulley Bracket

Safety Reversing Sensor

Mounting Bracket

With Slot (2)

Installation Hardware

Kit #41A2770

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)

Trolley

Curved Door

Arm Section

Safety Labels

and

Literature

Screw 6ABx1" (2)
Handle
Insulated Staples (10)
Ring Fastener (3)
Rail Grease
Rope
Dry Wall Anchors (2)

Door Bracket Plate

Straight Door

Arm Section

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye)

with

2-Conductor White & White/Black Bell Wire

attached

Safety Reversing Sensor

Installation Hardware Kit #41A4116

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)

5

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.

• Position T-rail at a 45˚ angle to opener so one hole
in T-rail and opener line up.

• Thread one of the washered screws part way in.

Use only these screws!

will cause serious damage to door opener.

• Align T-rail and styrofoam over opener sprocket.
Cut tape from T-rail, chain and styrofoam.

• REMOVE STYROFOAM.

Use of any other screws

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.

USE ONLY THIS
TYPE AND SIZE

SCREW

Chain

Washered Screw

5/16"-18x1/2"

Styrofoam

T-rail

Hole

Assembly Step 2

Attach Chain to Sprocket and Install Sprocket Cover

• 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.

Install The Sprocket Cover:

• 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

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.

USE ONLY THIS

TYPE AND SIZE 

SCREW

Washered Screw

5/16"-18x1/2"

Opener

Sprocket

Front Tab Slot

Mounting

Plate

Proceed to Assembly Step 3, Page 7

6

Assembly Step 3

Tighten the Chain

Lock

Washer

Inner Nut

To Tighten

Inner Nut

Chain

1/2 Inch

• Spin the inner nut and lock washer down the
threaded shaft, away from the trolley.

• To tighten the chain, turn outer nut in the direction
shown. As you turn the nut, keep the chain

from twisting.

• 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.

Sprocket noise can result if chain is either too
loose or too tight.

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,

NOTE: During future maintenance,
pull the manual release handle to disconnect
trolley before adjusting chain.

do not re-adjust the chain.

ALWAYS

Outer Nut

To Tighten Outer Nut

Trolley

Base of T-rail

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.

may not reverse and could result in severe injury or death.

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.

An improperly balanced door

Repairs to cables, spring assemblies

8. Upon completion of the installation, the door must reverse when it comes in contact with a
2x4 laid flat on the floor.

9. Do not wear watches, rings or loose clothing while installing or servicing an opener. Jewelry or
loose clothing can be caught in the mechanism of the garage door or the opener.

7

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.

Call for professional

garage door 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

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

Highest Point

Door

One-piece door with

horizontal track

Wall

2"

of Travel

Track

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

FOR HEADER BRACKET

Wall

Highest Point

of Travel

Header

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

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)

CEILING MOUNT ONLY

Header

Bracket

Center

Line

UP

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

Installation Step 3

Attach the T-rail to the Header Bracket

Header Wall

Header
Bracket

Chain
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 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

Header Bracket

Garage

Door

Clevis Pin

5/16"x2-3/4 "

Hardware Shown Actual Size

Chain

Pulley

Bracket

T-rail

Temporary

Support

Clevis Pin

5/16"x2-3/4"

Ring Fastener

11

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

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

• 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.

RAIL GREASE

NO. 83A4

Grease the top and underside of the rail
surface where the trolley slides with rail
grease.

Structural

Supports

Lag Screws
5/16"x1-7/8"

Measure
Distance

5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut

Figure 2

Hidden Support

— FINISHED CEILING —

Lag Screws

5/16"x1-7/8"

Bracket

(Not Supplied)

Hardware Shown Actual Size

Lag Screw

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

Hex Screw

5/16"-18x7/8"

Nut 5/16"-18

(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut

Lock Washer 5/16"

13

Installation Step 6

Opener

Terminal

Screws

2-Conductor

Bell Wire

Antenna

Back Panel

of Opener

Lighted

Door

Control

Terminal

Screws

2-Conductor

Bell Wire

WHT

-2

RED

-1

Door Control

Push Bar

LIGHT

LOCK

WHITE -2

Multi-Function

Door Control Panel

RED -1

Light Button

Lock Button

Multi-Function

Door Control Panel

Terminal Screws

2-Conductor

Bell Wire

Lighted

Door Control

Button

KG

KG

1

3

9

7

5

1

3

9

7

5

2 3

1

Install the Door Control

• 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. 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.

• 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 back 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 door controls and the Lock & Light features
available on the Multi-Function Door Control Panel.

Hardware Shown Actual Size

6ABx1-1/2" Screw

Lighted Door Control Button

6ABx1" Screw

Multi-Function Door Control Panel

Insulated

Staples

Dry Wall Anchors

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

close

connected and properly aligned.
See Safety Reversing Sensor Instructions

beginning on page 17.

Outside Keylock Accessory Connections

Models 1255 & 1245

but where the garage door is visible.

Activate the opener only when the

The trolley will travel to the

open

position but will not return to the

position until the sensor beam is

To opener terminal screws:

white to 2 and white/red to 1

Models 1260 & 1250

14

Installation Step 7

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

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.

• If the bulbs burn out prematurely due to vibration,
replace with a "Garage Door Opener" bulb.

Install the lenses: (Models 1260 & 1250)
Figure 1

• Slide lenses into guides. Snap bottom tabs into
lens slots.

• Reverse the procedure to remove the lenses.

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.
Retighten top panel screws to secure lens.

Figure 1

Figure 2

Light
Lens

Lens

Guide

Lens

Tab

Lens

Slot

75 Watt (Max)

Light Bulb

Screw

Panel

Lens Slot

75 Watt Max.

Light Bulb

Lens Tab

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

Installation Step 9

Electrical Requirement

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.

To avoid installation difficulties,

do not run the opener at this time.

only

fit into a grounding

WARNING

To prevent electrocution or fire,

and wiring must be in compliance with local
electrical and building codes.

Do

NOT

use an extension cord, 2-wire adapter,
or change the plug in any way to make it fit
your outlet.

installation

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
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

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.

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.

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.

The brackets
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.

must

be securely fastened to a solid

Sensor

Beam

4-6" max.

above floor

Sensor

Beam

4-6" max.

above floor

Invisible Light Beam

Protection Area

Figure 1: Facing the door from inside the garage

17

Installation Step 10

Install the Safety Reversing Sensor

Figure 2

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

For Garage Wall or Door Track

themselves.

Installation

• 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.

#10-32

Lock Nuts

Figure 3

Garage

Door Track

Drill 3/8"

Holes

1/4"-20x1/2"

Carriage Bolts

Figure 4

Garage DOOR Track Installation

Inside

Garage

Wall

1/4"-20 Lock Nuts

Garage WALL Installation

1/4x1-1/2"

Lag Screws

Inside

Garage

Wall

Mounting Bracket

with Slot

1/4"-20

Lock Nuts

1/4-20x1/2" Carriage Bolts

Mounting Bracket

with Square Holes

#10-32x3/8"

Screws

Mounting Bracket

with Square Holes

"C" Wrap

(with square shoulder)

"C" Wrap

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.

Alternate Wall Mount

Inside

Garage

Wall

Mounting Bracket

with Slot

Garage

Floor

Mounting Bracket

with Square Holes

"C" Wrap

Sensor

with wire

Indicator Light

Figure 6Figure 5

Alternate Floor Mount

Inside

Garage

Wall

"C" Wrap

Sensor with wire

Garage

Floor

Indicator Light

Mounting Bracket

with Square Holes

Mounting Bracket

with Slot

Attach with

concrete anchors

(not provided)

Hardware Shown Actual Size

#10-32x3/8"

Screw

#10x32

Lock Nut



1/4x1-1/2"

Lag Screw

Staples

1/4"-20x1/2"

Carriage Bolts

1/4"-20

Lock Nut

18

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

pointing toward each other across the door (see
Figure 7).

• Secure sensors with the hardware shown. Finger

tighten the wing nut on the
for final adjustment. Securely tighten the

eye

wing nut.

receiving eye

to allow

sending

• 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.

• 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.

Figure 7

"C" Wrap

Indicator

Light

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

Hex Bolt

Wing

Nut

Sensor

with Wire

Trouble Shooting

1. If the

sending eye

steadily

indicator light does not

after installation, check for:

glow

• 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.

but

Hardware Shown Actual Size

1/4-20x1-1/2"

Hex Bolt



Bell Wire

Wing Nut

Finished

Ceiling

Figure 8

Bell Wire

Connect Wire to

Opener Terminals

Wall Control

Connections

(dotted line)

OPENER TERMINAL SCREWS

Sensor

Connections

1

2 3

Sensor

Invisible Light Beam

Protection Area

Sensor

19

Installation Step 11

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.

• Center the door bracket on the previously marked
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:

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, fasten as shown in Figure 2.

20

Vertical

Guideline

Door

Bracket

Nut

5/16"-18

Carriage Bolt

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

Lock 

Washer

5/16"

Vertical

Guideline

UP

UP

Door

Bracket

Location

Header
Bracket

Horizontal and vertical reinforcement

is needed for lightweight garage doors

(fiberglass, aluminum, steel,
doors with glass panel, etc).

Vertical

Reinforcement

Door Bracket

Inside Edge

of Door or

Reinforcement Board

SECTIONAL Door Installation Procedure

Nut 5/16"-18

Lock Washer 5/16"

Carriage Bolt

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

Hardware Shown Actual Size

WARNING

CAUTION

WARNING

Figure 1

Figure 2

Fasten Door Bracket

Follow instructions which apply to your door type
as illustrated below or on 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

2x4 Support

Door

Bracket

Door

Bracket

Inside Edge

of Door or

Reinforcement Board

All ONE-PIECE Door Installation Procedure

• 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.

• Drill 5/16" pilot holes and fasten the door bracket
with hardware supplied.

21

Please read and comply with the warnings and reinforcement instructions on page 20.
They apply to one-piece doors also.

Carriage Bolt

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

Nut 5/16"-18

Lock Washer 5/16"

Hardware Shown Actual Size

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

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 button/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 button/push bar. The trolley
will travel to the fully closed position.

• Manually close the door and lift the door arm to the
trolley. The arm should touch the trolley just ahead
of the door arm connector hole. Refer to the fully
closed trolley/door arm positions in the illustration. If
the arm is behind the connector hole, adjust the limit
further. One full turn equals 2" of trolley travel.

Connect the door arm to the trolley.

• Close the door and join the curved arm to the connector hole in the trolley with the remaining clevis pin. It may be

necessary to lift the door slightly to make the connection.

• Secure with a ring fastener.

• Run the opener through a complete travel cycle. If the door has a slight "backward" slant in full open position as
shown in the illustration, decrease the UP limit until the door is parallel to the floor.

23

Adjustment Section: Pages 24 – 26

Adjustment Step 1

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

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?

If your door passes both of these tests, no limit
adjustments are necessary unless the reversing test
fails (See page 26).

stop

stop

when moving up or down.

in the

up

direction if anything

reverse

in

WARNING

Improper adjustment of the travel limits could
interfere with the proper operation of the
safety reverse system.

reverse properly when required and could
seriously injure or kill someone under it.

the safety reverse system following all
adjustments to the travel limits. See page 26.

Left Side

Panel

The door might not

Test

Limit

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
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.

reverses

down

travel. Turn the DOWN limit

reverses

in fully closed position

when closing and

24

Adjustment Step 2

Adjust the Force

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
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

in the

direction. Weather

reverse

down

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

1

3

2

9

9

1

1

7

7

3

3

5

5

KG

KG

9

7

3

5

KG

Adjustment Label

9

1

7

1

3

5

KG

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.

travel does not guarantee reversal on a one-inch
obstruction. See page 26.

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.

Reversal halfway through down

If the door is hard to

Back 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

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.

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.

®

WARNING

Without a properly working safety reversing
sensor, persons (particularly children) could
be seriously injured or killed if trapped by a
closing garage door.

month.

Safety Reversing Sensor

Repeat this test once a

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 to
persons trapped by a closing garage door.

Repeat this test 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).

• Any repair to or buckling of the garage floor.

• Any repair to or adjustment of the opener.

26

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

Adjustment Label

(Located on the back panel)

9

1

7

3

5

KG

3

5

KG

Maintenance Schedule

1

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.

Twice a Year

Check chain tension. Disconnect trolley first.

Adjust if necessary (See page 7.)

Once a Year

Oil door rollers, bearings and hinges.
The opener does not require additional

lubrication.
Do not grease the door tracks.

27

Operation of Your Opener

Activate the opener with any of the following:

• The Remote Control Transmitter. Hold push

button down until the door starts to move.

• The Door Control. Hold button/push bar down until

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.

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 control
transmitter. You can close the door with the Door
Control, the Outside Keylock, or Keyless Entry;
however, if you activate them

complete

. If you release them too soon, the door will

reverse.

The opener lights will

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.

until down travel is

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

Release Handle

(Pull Down)

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
manually:

Trolley

Release Arm

The door should be
fully closed if
possible. Pull down on
the red manual
release handle and lift

NOTICE

the door manually.
To reconnect the door
to the opener, press
the Door Control
button/push bar.

position

Trolley

Manual

Release Handle

(Pull Down & Back

Towards Opener)

Lockout position

Trolley

Release Arm

NOTICE

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. The Lock feature will also turn off whenever
the "Smart" button on the opener panel is activated.

28

open

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.

Figure 1

Single Function Remote Control

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
back panel of the opener in Figure 2. The opener
lights on the panel 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.

Figure 2

Battery

Indicator Light

Garage Door Opener

(With "Smart" Button)

1

"Smart"

Button

2

Indicator

Light

Push Button

3

9

7

9

1

3

5

KG

1

7

3

5

KG

Code programming instructions are also located
on the opener panel.

END PANEL

29

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

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.

increase the force to operate the opener.

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.

the door lock

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.

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.

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

off.

Do not

Disable

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.)

31

Repair Parts

Rail Assembly Parts

2

5

3

1

4

RAIL GREASE

NO. 83A4

6

KEY PART
NO. NO. DESCRIPTION

1 1A995 Master link kit
2 41A4813 Chain pulley bracket
3 41A3489 Complete trolley assembly
4 183B99 One-piece T-rail
5 41D3484 Full chain assembly
6 83A4 Rail grease

Installation Parts

3

12VDC

LOCK

LIGHT

4

1

2

KEY PART
NO. NO. DESCRIPTION

1 41A4202A Multi-function door control panel
2 41A4166 Lighted door control button
3 10A14 12V battery
4 29C128 Transmitter visor clip
5 41A3984-7 Transmitter case, cover & screw only
6 41A2828 Manual rope & handle assy.
7 217A238 2-Conductor bell wire, white & white/red
8 12B374 Door bracket

9 12B380 Door bracket plate
10 41A4353 Header bracket w/clevis pin & fastener
11 41A4373A Safety sensor kit

(receiving and sending eyes)

with 3' 2-conductor bell wire attached
12 178B34 Straight door arm section
13 12B483 "C" Wrap bracket
14 178B35 Curved door arm section
15 12B484 Square hole mounting bracket
16 12B485 Slotted mounting bracket

NOT SHOWN

41A2770 Installation hardware bag

(includes hardware listed on page 5).

41A4116 Safety sensor hardware
114A1905 Owner's manual

14

15

7

5

NOTICE

6

10

8

11

9

CEILING MOUNT ONLY

UP

12

13

16

32

Opener Assembly Parts

Repair Parts

8

7

(1255, 1245)

(Down)

Contact

Brown

Wire

Drive

Gear

Center Limit

Contact

(1260, 1250)

21

20

LIMIT SWITCH ASSY.

DN

(Up)

Contact

17

19

UP

17

Grey
Wire

Yellow

Wire

18

(1260, 1250)

16

3

15

13

1

5

(1255, 1245)

2

4

3

7

8

9

11

10

6

(1260, 1250)

8

12

(1260, 1250)

14

KEY PART
NO. NO. DESCRIPTION

1 31D380 Sprocket cover
2 41C4220A 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 143D100 End panel w/all labels (1255, 1245)
6 143D123 End panels w/all labels (1260, 1250)
7 175B88 Light socket
8 108D34 Lens (1260, 1250)

108D36 Lens (1255, 1245)

9 30B363 Capacitor - 1/2 HP

30B387 Capacitor - 1/3 HP

10 12A373 Capacitor bracket
11 41A3150 Terminal block w/screws

KEY PART
NO. NO. DESCRIPTION

12 41D3058 Universal replacement motor &

13 41A3583-3 Cover (1260, 1255)

41A3583-1 Cover (1250, 1245)
14 41A2818 Helical gear & retainer w/grease
15 41D3452 Limit switch assembly
16 41C4398A RPM sensor assembly
17 41C4246 Wire harness assy. w/plug
18 41A2826 Shaft bearing kit
19 41A2822A Interrupter cup assembly
20 41A4252-6C Receiver logic board assy.

41A4252-7C Receiver logic board assy.

41A2825 Opener assembly hardware kit

bracket assembly
Complete with: Motor, worm, bracket,
bearing assembly, RPM sensor

(1260, 1250)

Complete with:

Logic board
End panel w/all labels
Light socket

(1255, 1245)

NOT SHOWN

(includes screws not designated by a
number in illustration)

.

33

Accessories Available For Your Opener

Model 1702LMC

Model 60LMC

Model 1708LMC

Model 1710LMC

Outside Quick Release:

Required

for a garage with NO

access door.

Outside Keylock:

Operates 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

9 0

7 8

5 6

3 4

1 2

Keyless Entry:

Model 84LMC

Enables homeowner to operate
garage door opener from outside
by entering code on specially
designed keyboard.

Multi-Function Door Control Panel:

Model 64LMC

Provides a Lock Feature which
prevents operation of garage door
opener from portable remotes and a
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 backlit keyboard. Includes visor clip.

4-Channel "Smart" Remote
Control:

Includes visor clip.

Multi-Function Mini Remote
Control:

With key ring & Velcro fastening
strip.

34

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

35

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

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.

© 1995, Chamberlain Mfg., Canada, Inc.

114A1905 All Rights Reserved Printed in Mexico