Liftmaster 1256 User Manual

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Garage Door Opener

Owner's Manual

(Model Series 1200)

For Residential Use Only

The Chamberlain Group, Inc.

A DUCHOSSOIS ENTERPRISE

Complies with UL 325 Regulations effective January 1, 1993.

845 Larch Avenue

Elmhurst, Illinois 60126

Model 1260 - 1/2HP Model 1260-166 - 1/2HP Model 1260-266 - 1/2HP

Model 1250 - 1/3HP

Model 1250-266 - 1/3HP

Model 1255 - 1/2HP Model 1255-166 - 1/2HP Model 1255-266 - 1/2HP

Model 1245 - 1/3HP Model 1245-266 - 1/3HP

Model 1256 - 1/2HP Model 1246 - 1/3HP

Model 1240 - 1/4HP

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 and adjustment of the opener are required to ensure safe

operation.

■ The model number label is located 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................5

Carton inventory.....................................................6

Hardware inventory ................................................7

Assembly Section - Pages 8 – 11

Fasten T-rail to opener.....................................8, 9

Attach chain to sprocket, install sprocket cover....8

Attach chain spreader, re-install chain ...............10

Tighten the chain................................................11

Installation Section - Pages 11 – 27

Installation safety instructions.............................11

Determine header bracket location

Sectional door...................................................12

One-piece door.................................................13

Install header bracket.........................................14

Attach the T-rail to header bracket.....................15

Position the opener.............................................16

Hang the opener.................................................17

Install the door control........................................18

Install the light(s) and lens(es)............................19

CONTENTS PAGE

Attach manual release rope and handle.............19

Electrical requirements ........................................20

Safety reversing sensor information ....................21

Install the safety reversing sensor .................22, 23

Fasten door bracket (sectional door)...................24

Fasten door bracket (one-piece door)..................25

Connect door arm to trolley (sectional door)........26

Connect door arm to trolley (one-piece door) 27

Adjustment Section - Pages 28 – 30

Travel limit adjustments.......................................28

Force adjustments ...............................................29

Test the safety reversing sensor..........................30

Test the safety reverse system ...........................30

Operation safety instructions .................................31

Care of your opener...............................................31

Maintenance schedule...........................................31

Operation of your opener.......................................32

Receiver and remote control programming............33

Having a problem?...........................................34, 35

Repair parts, rail assembly ....................................36

Repair parts, installation ........................................36

Repair parts, opener assembly..............................37

Accessories............................................................38

Index......................................................................39

How to order repair parts.......................................40

Maintenance agreement........................................40

Warranty ................................................................40

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.

WARNING

if you do not comply with the corresponding instructions. The hazard may

Read the instructions carefully.

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.

You'll Need Tools

During assembly , installation and ad justment of t he opener, instructions will call for hand tools shown below.

Pencil

Carpenter's

Level

Tape Measure

Hack Saw

Wire Cutters

Stepladder

Drill

1/2" and 7/16" Sockets

and Wrench

3/16", 5/16" and

5/32" Drill Bits

WARNING

An unbalanced garage door might not reverse when required and someone under the door could be seriously injured or killed.

If your garage door binds, sticks or is out of balance, call for professional garage door service.

pulleys, brackets and their hardware, are under extreme tension and can cause serious injury or death.

adjust them yourself!

Ropes left on a garage door could cause someone to become entangled and killed.

Remove all ropes connected to the door before installing and operating the opener.

Identify the type and height of your door and any special conditions that exist and any additional materials that may be required by referring to the lists on page 4 or page 5.

Garage doors, door springs, cables,

Do not try to loosen, move or

Claw Hammer

Pliers

Screwdriver

Adjustable End Wrench

CAUTION

To avoid damage to the garage door and opener, disable locks before installing and operating the opener. Use a wood screw or nail to hold locks in the "open" (unlocked) position.

Operation at other than 120V 60 Hz will cause opener malfunction and damage.

Before you begin, complete the following test to make sure your door is balanced, and is not sticking or binding:

• Lift the door about halfway as shown. Release the door. It should stay in place, supported entirely by its springs.

• Raise and lower the door to see if there is any binding or sticking.

SECTIONAL DOOR

ONE-PIECE DOOR

Sectional Door Installation

Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.

FINISHED CEILING

Support bracket &

fastening hardware

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

Slack in chain tension

is normal when

garage door is closed.

Extension Spring

Torsion Spring

is required.

See page 13.

Access Door

Floor must be level

Safety

Reversing

Sensor

across width of door

Based on your particular requirements, there are several installation steps which might call for materials and/or hardware not included in the carton.

• Step 1, page 12 - Look at the wall or ceiling above the garage door. The header bracket

must

securely fastened to structural supports.

• Step 5, page 17 - Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware may be required.

• Safety reversing sensor, page 21 - Depending upon garage construction, wood blocks may need to be fastened to mounting locations before sensors are installed.

• Step 10, page 22 - Alternate floor mounting of the safety reversing sensor will require hardware not provided.

• Step 11, page 24 - Do you have a steel, aluminum, fiberglass or glass panel door? If so, horizontal and vertical reinforcement is required.

• Look at the garage door where it meets the floor. It must close on the floor all the way across. Otherwise, the safety reverse system may not work properly. See page 30. Floor or door should be repaired.

• If your door is more than 7 feet high, see longer rails available on page 38.

Safety

Reversing

Sensor

Closed Position

Trolley

Straight

Door

Arm

Curved

Door Arm

Rope & Handle

Chain

Manual

Release

Header

Wall

Garage

Door

Header Bracket

Garage

Door Bracket

Chain Pulley

Bracket

Door

Spring

• The opener can be installed within 2 feet to the left or right of the door center if there is a torsion spring or center bearing plate in the way of the header bracket or door bracket area. If your door has extension springs, the opener

must

be installed

in the center of the door. See pages 12 and 24.

• Do you have an access door in addition to the garage door? If not, Model 1702 Outside Quick Release is required. See page 38.

You may find it helpful to refer back to this page as you proceed with the installation of your opener.

One-Piece Door Installation

Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.

Slack in chain tension

is normal when

garage door is closed.

Header

Wall

One-Piece Door without Track

FINISHED CEILING

Support bracket

& fastening

hardware is required.

See page 17.

Access Door

Safety Reversing Sensor

Gap between floor and bottom of

Safety

Reversing

Sensor

door must not exceed 1/4".

Based on your particular requirements, there are several installation steps which might call for materials and/or hardware not included in the carton.

• Step 1, page 12 - Look at the wall or ceiling above the garage door. The header bracket

must

securely fastened to structural supports.

• Step 5, page 17 - Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware (not supplied) may be required

• Safety reversing sensor, page 21 - Depending on garage construction, wood blocks may need to be securely fastened to mounting locations before sensors are installed.

• Step 10, page 22 - Alternate floor mounting of the safety reversing sensor will require hardware that is not provided.

• Step 11, page 25 - Generally, a one-piece door does not require reinforcement. If your door is lightweight, you can refer to the information relating to sectional doors on page 24.

• Step 11, page 25 - Depending on your door's construction, you might need additional mounting hardware for the door bracket.

• Do you have an access door in addition to the garage door? If not, Model 1702 Outside Quick Release is required. See page 38.

• The gap between the bottom of the garage door and the floor cannot exceed 1/4". Otherwise, the safety reverse system may not work properly. See page 30. The floor or the door should be repaired.

Closed Position

Chain

Header

Wall

Pulley Bracket

Header Bracket

Door

Bracket

Garage

Door

T-rail

Straight

Door

Arm

Curved

Door

Arm

Trolley

Rope & Handle

Manual

Release

One-Piece Door with Track

Slack in Chain Tension

is Normal When

Garage Door is Closed

Access

Door

Safety

Reversing

Sensor

Floor must be level

across width of door

Closed Position

Header

Wall

Door

Chain Pulley

Bracket

Header Bracket

Door

Bracket

Chain

Curved

Door Arm

Straight

Door Arm

You may find it helpful to refer back to this page as you proceed with the installation of your opener.

Reversing

Sensor

Trolley

T-rail

Manual Release

Rope & Handle

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 shown on page 7.

(Models 1260, 1260-266,

1260-166, 1250 &1250-266)

LOCK

LIGHT

Multi-Function Door

Control Panel

(Models 1260, 1260-266,

1260-166, 1250 & 1250-266)

Light Lens (2)

(Models 1256, 1255, 1255-266,

1255-166, 1246, 1245, & 1245-266)

Light Lens (1)

(Models 1256, 1255, 1255-266,

1255-166, 1246, 1245, 1245-266, & 1240)

Lighted Door Control Button

w/6ABx1-1/2" screws

(Models 1260-266, 1260-166, 1255-266,

1255-166, 1250-266 & 1245-266 only)

Keyless Entry

Trolley

(Models 1260-266 &

1255-266 (2)

All Other Models (1))

Remote Control

Transmitter

with 12V battery

Remote Control

Transmitter Visor Clip

One-Piece

T-rail

(All Models except

1256 & 1246)

Sprocket Cover

Styrofoam

Chain

(Models 1256 & 1246 only)

Chain Spreader with

Screws and Washers

CEILING MOUNT ONLY

Header Bracket

Safety Reversing Sensor

Mounting Bracket

With Square Holes (2)

Safety Reversing Sensor

Mounting Bracket

With Slot (2)

Chain

Pulley Bracket

2-Conductor Bell Wire

White & White/Red

"C" Wrap (2)

Safety Reversing Sensor (2)

(1) Sending Eye

(1) Receiving Eye

2 Conductor Bell Wire with Connector

White & White/Black (2 rolls)

Door Bracket Plate

Door Bracket

Curved Door

Arm Section

Safety Labels

Literature

and

Straight Door

Arm Section

Group all hardware found in all packages contained in the opener carton into the two kits illustrated below.

Installation Hardware Kit # 41A2770

RAIL GREASE

NO. 83A4

Hex Screw

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

Nut 5/16"-18 (6)

Lock Washer 5/16" (6)

Rail Grease

Lag Screw

5/16"-18 x1-7/8" (4)

Carriage Bolt

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

Clevis Pin

5/16"x2-3/4" (1)

Screw

6ABx1" (2)

Insulated Staples (10)

Handle

Clevis Pin

5/16"x1" (2)

Safety Reversing Sensor

Installation Hardware Kit #41A4116

NOTICE

Ring Fastener (3)

Dry Wall Anchors (2)

Rope

Lag Screw

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

Hex Screw

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

Carriage Bolts

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

Screw

#10-32 x3/8" (4)

Lock Nut

1/4"-20 (4)

Lock Nut

#10x32 (4)

Wing Nut (2)

Insulated

Staples (20)

Assembly Step 1

Attach the T-rail to the Opener

For Models 1260, 1260-266, 1255,1255-266, 1250, 1250-266, 1245, 1245-266 and 1240

See page 9 for Models 1256 and 1246.

• Remove the two washered screws mounted in top of opener

• Align T-rail at an angle with 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. Any other screws 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

For Models 1260, 1260-266, 1255,1255-266, 1250, 1250-266, 1245, 1245-266 and 1240

• 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 11.

Assembly Step 1

Attach the T-rail to the Opener

For Models 1256 and 1246 only

CAUTION

To fasten rail, use only those screws mounted in the top of the opener. Any other screws will cause serious damage to the opener.

• Place the opener on packing material to protect

the cover.

• Remove the (2) 5/16"-18x1/2" washered screws mounted in the top of the opener.

• Align T-rail and styrofoam over opener sprocket.

T-rail

Chain

Styrofoam

Packaging

USE ONLY THIS

TYPE AND SIZE

SCREW

Washered

Screws

5/16"-18x1/2"

Opener

Sprocket

• Cut tape from T-rail, chain and styrofoam. Remove styrofoam and pull the chain back (away from mounting plate)

• Fasten the rail with the (2) washered screws previously removed. Tighten securely.

Remember to use only these screws!

Any other

screws will cause serious damage to the opener.

USE ONLY THIS

TYPE AND SIZE

SCREW

Chain

T-rail

Styrofoam

Packaging

Washered Screws

5/16"-18x1/2"

Mounting

Plate

Opener

Chassis

Assembly Step 2

Attach the Chain Spreader and Re-install the Chain

For Models 1256 and 1246 only

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.

• Line up the holes in the chain spreader with the holes in the opener as shown. The slot in the chain spreader must fit over the T-rail flange.

• Securely fasten the chain spreader with the hardware provided.

• Remove the trolley threaded shaft from the trolley by loosening the inner nut and lock washer.

USE ONLY

THIS TYPE

AND SIZE

SCREW

Trolley

Hex Screw

T-rail

Flange

Outer

Nut

#8x1"

Slot

and Washer

Inner Nut

Washers

Chain

Spreader

Trolley

Threaded

Shaft

T-rail

• Guide the chain around the selected groove in the chain spreader (to engage either the 8-tooth sprocket or the 6-tooth sprocket) as shown.

• Continue dispensing the chain forward to the trolley. Reconnect the trolley to the trolley threaded shaft. Proceed to page 11 for chain tightening instructions.

Spreader

Chain

Spreader

Chain

Spreader

8-Tooth

Sprocket

Opener

Mounting Plate

6-Tooth

Sprocket

Opener

Mounting Plate

Install Chain

In This Direction

Opener

Sprocket

Assembly Step 3

Tighten the Chain

(All Models)

• 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

Chain

Base of T-rail

Lock

Washer

Inner Nut

To Tighten

Inner Nut

1/2"

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.

could result in severe injury or death.

must be made by a professional service person before installing opener.

3. Disable all locks and remove all ropes connected to the garage door before installing the opener.

Repairs to cables, spring assemblies and other hardware

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.

An improperly balanced 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 one-inch high object (or a 2x4 laid flat) on the floor.

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

Vertical

Guideline

Finished

Ceiling

Vertical

Guideline

Header

Wall

2x4

Structural

Supports

Installation Section: Pages 12 – 27

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 30).

not reverse when required, and could cause serious injury or death.

The garage door springs, cables, pulleys, brackets and their hardware are under extreme tension.

Do not attempt to loosen, move or adjust them yourself. Serious personal injury or death could result.

service.

• Close the door and mark the inside vertical centerline of the garage door.

• Extend the line onto the header wall above the door.

Remember, you can fasten the header bracket within 2 feet to the left or right of the door center a torsion spring or center bearing plate is in the way; or you can attach it to the ceiling (refer to page 14) when clearance is minimal.

If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not supplied) to securely fasten the 2x4 to structural supports as shown here and on page 13.

The door might

Call for garage door

only

• 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 14.

Door

Sectional door with

curved track

Ceiling

Header

Wall

Highest Point

of Travel

Track

Header

Wall

Highest Point

Door

One-piece door with

horizontal track

of Travel

Track

ONE-PIECE Door Without Track

Read the Safety Instructions on page 12. 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 14.

•

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

2x4

Vertical Centerline of Garage Door

Unfinished

Ceiling

2x4

OPTIONAL CEILING MOUNT

FOR HEADER BRACKET

Wall

Highest Point

of Travel

Header

Structural

Supports

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 14 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 14.

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

2x4

Structural

Support

Highest

Point of Travel

(of Garage Door)

Wall

CEILING MOUNT ONLY

Header Bracket

2"



Center

Line

Garage

Vertical

Center

Line

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

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

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

Lag Screws

5/16"x18x1-7/8"

Header

Wall

Vertical

Center Line

Installation Step 3

Attach the T-rail to the Header Bracket

Header Wall

Header Bracket

Chain

Pulley

Bracket

• 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.

Garage

Door

T-rail

Clevis Pin

5/16"x2-3/4 "

INCREASE TRAVEL

DOWN

Ring Fastener

Header Bracket

Chain

Pulley

Bracket

T-rail

Temporary

Support

Hardware Shown Actual Size

Clevis Pin

5/16"x2-3/4"

Ring Fastener

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.

T-rail

Door

2x4

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

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.

• Measure the distance from 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.

each

side of the opener

WARNING

The opener could fall and injure someone if it is not properly secured.

securely to structural supports of the garage.

Figure 1

Measure Distance

5/16"-18x7/8" Screw

5/16" Lock Washer

5/16"-18 Nut

Fasten the opener

Structural

Supports

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

RAIL GREASE

NO. 83A4

Grease the top and underside of the rail surface where the trolley slides. A tube of grease is supplied.

Rail Grease

Hardware Shown Actual Size

Lag Screw

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

Figure 2

Bracket

(Not Supplied)

5/16"-18x7/8" Screw

5/16" Lock Washer

5/16"-18 Nut

Hidden

Support

— FINISHED CEILING —

Lag Screws

5/16"x1-7/8"

(Not Supplied)

5/16"-18x7/8" Screw

5/16" Lock Washer

5/16"-18 Nut

Hex Screw

5/16"- 18x7/8"

Nut 5/16"-18

Lock Washer 5/16"

Installation Step 6

2-Conductor

Bell Wire

Lighted

Door

Control

Terminal

Screws

2-Conductor

Bell Wire

WHT

RED

Door Control

Push Bar

LIGHT

LOCK

WHITE

Multi-Function

Door Control Panel

RED

Light Button

Lock Button

Multi-Function

Door Control Panel

Terminal Screws

2-Conductor

Bell Wire

Lighted

Door Control

Button

Opener

Terminal

Screws

Antenna

Back Panel

of Opener

2 3

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 Lighted Door Control Button securely with 6ABx1-1/2" screws. The Multi-Function Door Control Panel uses 6ABx1" screws. If installing into drywall, drill 5/32" holes and use the anchors provided.

• Run the bell wire up the wall and across the ceiling to the opener. Use insulated staples to secure the wire in several places. Be careful not to pierce the wire with a staple, thereby resulting in a short.

• Receiver terminals screws 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.

Page 32 explains how to operate the opener using the Door Controls and the Lock and Light features available on the Multi-Function Door Control Panel.

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 control button.

Hardware Shown Actual Size

WARNING

Children operating or playing with a garage door opener can injure themselves or others.

The garage door could close and cause serious injury or death.

Install the Door Control (or any additional push buttons) out of the reach of children and away from all moving parts of the door and door hardware, Do not allow children to operate the push button(s) or the remote control transmitter(s).

A moving garage door could injure someone under it.

door is properly adjusted, you can see it clearly, and there are no obstructions to door travel.

Do NOT connect the power and operate the opener at this time.

full

open

connected and properly aligned. See Safety Reversing Sensor instructions

beginning on page 21.

Outside Keylock Accessory Connections

To opener terminal screws: white to 2; white/red to 1

Models 1256, 1255, 1255-166, 1255-266, 1246, 1245, 1245-266 & 1240

but where the garage door is visible.

Activate the opener only when the

The trolley will travel to the

position but will not return to the

position until the sensor beam is

Models 1260, 1260-166, 1260-266, 1250 & 1250-266

6ABx1-1/2" Screw

Lighted Door Control Button

Multi-Function Door Control Panel

6ABx1" Screw

Insulated

Staples

Dry Wall Anchors

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 standard-neck "Garage Door Opener" bulb.

Install the lenses:

(Models 1260, 1260-266, 1260-166, 1250 and 1250-266 only)

• See Figure 1.

• Slide each lens into the guides. Snap bottom tabs into lens slots.

• Reverse the procedure to remove the lenses

Figure 1

Figure 2

Lens

Guide

(Models 1250, 1250-266, 1260, 1260-266, & 1260-166 Only)

Lens

Tab

Lens

Slot

75 Watt Max.

Light Bulb

Install the lens:

(All other Models except 1240)

• See 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.

Installation Step 8

Attach the Manual Release Rope and Handle

Overhand

Knot

Light Lens

75 Watt Max.

Light Bulb

Lens Tab

Panel Screw

Lens Slot

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.

The rope knot could become

Use the manual

Trolley

Rope

Overhand

Knot

NOTICE

Trolley

Release Arm

Manual

Release Handle

• 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.

Installation Step 9

Electrical Requirements

To reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will type outlet.

If the plug doesn't fit into the outlet you have, contact a qualified electrician to install the proper outlet.

only

fit into a grounding

WARNING

To prevent electrocution or fire,

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

installation

To avoid installation difficulties,

do not run the opener at this time.

Right Wrong

• Do not change the plug in any way.

• Do not use a 2-wire adapter.

• Do not use an extension cord.

If permanent wiring is required by your local code, refer to the following procedure:

WARNING

To prevent electrocution, remove power from the garage door opener you plan to use for the permanent connection.

To make a permanent connection through the 7/8" diameter hole in the top of the opener (according to local code):

• Remove the opener cover screws and set the cover aside.

• Remove the attached 3-prong cord.

• Connect the black (line) wire to the screw on the brass terminal; the white (neutral) wire to the screw on the silver terminal; and the ground wire to the green ground screw.

grounded.

• Reinstall the cover.

and

from the circuit

The opener must be

Ground Tab

Green

Ground

Screw

Ground Wire

Permanent wiring

connection

Black

Wire

To avoid installation difficulties,

do not run the opener at this time.

White Wire

Black

Wire

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.

— Left Side of Garage —

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.

— Right Side of Garage —

Sensor

Unit

Invisible Light Beam

Protection Area

Figure 1: Facing the door from inside the garage

Be sure power to the opener is disconnected.

The sending eye transmits an invisible light beam to the receiving eye.The units can be installed on either side of the garage door as long as the sun never shines directly into the receiving eye lens.

Look at the label on the connector end of each case to identify the sensors.

The brackets must be connected and fastened so that the sending and receiving eyes face each other as shown in Figure 1.

If an obstruction breaks the light beam while the garage door is closing, the door will stop and reverse to full open position; and the opener lights will flash for 5 seconds.

Sensor

Unit

The brackets

must

be securely fastened to a solid surface such as the studs on either side of the door, or add a piece of wood at each location if installing in masonry construction.

The invisible light beam path must be unobstructed. No part of the garage door (or door tracks, springs, hinges, rollers or other hardware) can interrupt the beam while the door is closing. If it does, use a piece of wood to build out each sensor mounting location to the minimum depth required for light beam clearance.

Installation Step 10

Install the Safety Reversing Sensor (Receiving and Sending Eyes)

Figures 2 , 3 and 4 show recommended assembly of bracket(s) and "C" wrap based on the 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 21.)

• Attach bracket assemblies with 1/4"x1-1/2" lag screws as shown in Figure 4.

• Adjust right and left side bracket assemblies to the same distance out from mounting surface. Make sure all door hardware obstructions are cleared. Tighten the nuts securely.

wall

Figure 2

Garage WALL or DOOR TRACK Installation

#10-32

Lock Nuts

Figure 3

Garage

Door Track

Drill 3/8"

Holes

1/4"-20x1/2"

Carriage Bolts

Figure 4

Mounting Bracket

With Square Holes

"C" Wrap

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.

Figure 5

Alternate Wall Mount

Inside

Garage

Wall

Mounting Bracket

with Slot

Mounting Bracket

with Square Holes

"C" Wrap

Sensor

Indicator Light

Garage

Floor

Figure 6

Alternate Floor Mount

Inside

Garage

Wall

"C" Wrap

Indicator

Light

Sensor

Mounting Bracket

with Square Holes

Mounting Bracket

with Slot

Attach with

concrete anchors

(not provided)

Garage

Floor

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

• Insert the wire connector into each sensor and push until you hear a click, Figure 7. The white tab on the sensor should be flush with the back of the connector.

Safety Sensor

Figure 7

Tab should be flush with back of connector

Bell Wire

— Finished Ceiling —

Wire Connector

Bell Wire

White Tab

Push connector in until you hear a click

Connect Wire to

Opener Terminals

Wall Control Connections

(dotted line)

Sensor

Connections

OPENER TERMINAL SCREWS

2 3

• Center each sensor unit in a "C" wrap with lenses pointing toward each other across the door.

• Secure sensors with the hardware shown. Finger tighten the wing nut on the for final adjustment. Securely tighten the

eye

wing nut.

receiving eye

to allow

sending

Sensor

Invisible Light Beam

Sensor

Protection Area

• Run paired wires from both sensors to the opener. Use insulated staples to secure the wire to wall and ceiling.

• Strip 1/4" of insulation from each set of wires. Separate white and white/black wires sufficiently to connect to the opener terminal screws: white to 2 and white/black to 3.

• Plug in the opener. Make sure the Lock Feature is

off

. Green indicator lights in both the sending and

receiving eyes will

glow steadily

if wiring

connections and alignment are correct.

If the indicator light is

off

in the

receiving eye

(and the invisible light beam path is not obstructed), alignment is required.

• Loosen the receiving eye wing nut to allow slight rotation of unit. Adjust sensor vertically and/or horizontally until the green indicator light

with a steady light

• When indicator lights are

glowing steadily

glows

in both

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

Wing Nut

"C" Wrap

Sensor

Wire

Indicator Light

1/4-20x1-1/2"

Hex Bolt

Trouble Shooting

1. If the

sending eye

steadily

indicator light does not

after installation, check for:

• Electric power to the opener.

• A short in the white or white/black wires. These can occur under staples or at screw terminal connections.

• Incorrect wiring between sensors and opener.

• An open wire (wire break).

2. If the sending eye indicator light

glows steadily

the receiving eye indicator light doesn't:

• Check alignment.

• Check for an open wire to the receiving eye.

Hardware Shown Actual Size

1/4-20x1-1/2"

Hex Bolt

Wing Nut

glow

but

Installation Step 11

Vertical

Guideline

Door

Bracket

Nut

5/16"-18

Carriage Bolt

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

Lock Washer

5/16"

Vertical

Guideline

Door

Bracket

Location

Header Bracket

Door

Bracket

Door

Bracket

Plate

Inside Edge

of Door or

Reinforcement Board

Horizontal and vertical reinforcement

is needed for lightweight garage doors

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

Vertical

Reinforcement

CAUTION

Fasten Door Bracket

Follow instructions which apply to your door type as illustrated below or on page 25.

A horizontal brace should be long enough to be secured to 2 vertical supports. A vertical brace should cover the height of the top panel.

The illustration shows one piece of angle iron as the horizontal brace. For the vertical brace, 2 pieces of angle iron are used to create a "U"-shaped support. The best solution is to check with your garage door manufacturer for an opener installation, door reinforcement kit.

To prevent damage to steel, aluminum, fiberglass or glass panel doors, always reinforce the inside of the door both vertically and horizontally with angle iron.

SECTIONAL Door Installation Procedure

Figure 1

• Center the door bracket on the previously marked vertical guideline used for the header bracket installation.

• Position the bracket on the face of the door within the following limits:

A) The top edge of the bracket 2"-4" below the top

edge of the door.

B) The top edge of the bracket directly below any

structural support across the top of the door.

• Mark and drill 5/16" left and right fastening holes. Secure the bracket as shown in Figure 1 if there is vertical reinforcement.

If your installation doesn't require vertical reinforcement but does need top and bottom fastening holes for the door bracket, position the door plate over the door bracket as shown in Figure 2. Fasten securely with hardware shown in Figure 1.

Hardware Shown Actual Size

Nut 5/16"-18

Carriage Bolt

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

Figure 2

Lock Washer 5/16"

Door

Bracket

Top of Door

(Inside Garage)

Carriage Bolt

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

Optional

Placement

Lock Washer

5/16"

Nut

5/16"-18

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 —

Optional

Placement

of Door Bracket

Header Bracket

Top Edge

of Door

2x4 Support

Door

Bracket

For a door with no exposed framing or for the optional installation, use 5/16"x1-1/2" lag screw (not supplied) to fasten door bracket.

All ONE-PIECE Door Installation Procedure

Please read and comply with the warnings and reinforcement instructions on page 24. They apply to one-piece doors also.

• Center the bracket on the top of the door, in line with the header bracket as shown. Mark holes.

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

If the door has no exposed framing, drill 3/16" pilot holes and fasten the bracket with 5/16"x1-1/2" lag screws (not supplied) to the top of the door.

The door bracket may be installed on the top edge of the door if required for your installation. (Refer to the dotted line optional placement drawing.) Drill 3/16" pilot holes and substitute 5/16"x1-1/2" lag screws (not supplied) to fasten the bracket to the door.

Hardware Shown Actual Size

Nut 5/16"-18

Lock Washer 5/16"

Carriage Bolt

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

Installation Step 12

Connect Door Arm to Trolley

Follow instructions which apply to your door type as illustrated below and on page 27.

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

Clevis

Ring

Fastener

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.

Lock

Washers

5/16"

Rope

Clevis Pin

Door

Bracket

Curved

Door Arm

Straight

Door Arm

Figure 1

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

Nut 5/16"-18

Lock Washer 5/16"

above

holes in straight

cut end

Ring Fastener

Nuts

5/16"-18

Door Bracket

Nuts

5/16"-18

Manual

Release

Handle

Screws

5/16"-18x7/8"

Figure 2

Lock

Washers

5/16"

Screws

5/16"-18x7/8"

Cut This End

Figure 3

Hex Screw

5/16"- 18x7/8"

Clevis Pin

5/16"x1"

Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when the opener is operated.

All ONE-PIECE Doors

Door

Assemble the Door Arm:

Bracket

• 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

Clevis Pin

Straight

Arm

arm section to the door bracket with a clevis pin.

• Secure with a ring fastener.

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 28. Follow adjustment procedures below.

Fully Closed

Trolley

Ring

Fastener

Screws

5/16"-18x7/8

Lock

Washers

5/16"

Fully Open

Trolley

Nuts

5/16"-18

Curved

Door Arm

Closed

Door

Door Arm

Open Door

Door Arm

Connector Hole

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

Connector Hole

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.

Adjustment Section: Pages 28 – 30

Adjustment Step 1

Adjust the UP and DOWN Limits

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.

stop

when moving up or down.

in the

direction if anything

reverse

WARNING

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

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

system following all adjustments to the travel limits. See page 30.

The door might not reverse

Test the safety reverse

INCREASE TRAVEL DOWN

Left Side

Panel

Limit

Adjustment

Screws

INCREASE TRAVEL

DOWN

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

at least

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 does not

Increase

down

adjustment screw counterclockwise. One turn equals 2" of travel.

If door still won't close completely, try lengthening the door arm. (See page 26.)

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 12 and 13.

open completely

five feet

close completely

travel. Turn the DOWN limit

If the opener

Decrease

reverses

down

travel. Turn the DOWN limit

in fully closed position

adjustment screw clockwise. One turn equals 2" of travel.

If the door

reverses

when closing and

there is no visible interference to travel cycle

If the opener lights are flashing, the Safety Reversing Sensor is obstructed. Remove the obstruction.

Test the door for binding: Pull the manual release handle. Manually open and close the door. If the door is binding, call for garage door service. If the door is not binding or unbalanced, adjust the DOWN (close) force. See Adjustment Step 2.

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

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 30.

The door might not reverse properly

Do not increase the

Force

Adjustment

Controls



Adjustment Label

How and When to Adjust the Forces

Test the DOWN (close) force:

Grasp the door bottom when the door is about halfway through DOWN (close) travel. The door should reverse. (Reversal halfway through down

travel does not guarantee reversal on a two-inch obstruction. See page 30.) If the door is hard to

hold or doesn't reverse, decrease the DOWN (close) force by turning the control counterclockwise.

Make 10 degree turn adjustments until the door reverses normally. After each adjustment, run the opener through a complete cycle.

Back Panel

of Opener

Make 10 degree turn adjustments until the door stops easily. After each adjustment, run the opener through a complete travel cycle.

If the door doesn't open

at least

5 feet:

Increase UP (Open) force by turning the control clockwise. Make 10 degree turn adjustments until door opens completely. Re-adjust the UP limit if necessary. After each adjustment, run the opener through a complete travel cycle.

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.

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.

Adjustment Step 3

Test The Safety Reversing Sensor

• Press the remote control push button to open the door.

• Place the opener carton in the path of the door.

• Press the remote control push button to close the door.

The door will not move more than an inch,

and the opener light(s) will flash.

The garage door opener will not close from a remote if the indicator light in either sensor is

off,

alerting you to the fact that the sensor is

misaligned or obstructed.

The garage door can be closed by pressing and holding the door control button/push bar until down travel is completed.

Professional service is required if the opener closes the door when the safety reversing sensor is obstructed.

WARNING

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

Safety Reversing Sensor

Repeat this test once a month.

Safety Reversing Sensor

Adjustment Step 4

Test the Safety Reverse System

Test:

• Place a one-inch board (or 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 26.

• When the door reverses on the one-inch object (or 2x4 laid flat), remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment.

If the door will not reverse after repeated adjustment attempts, call for professional garage door service.

stops

on the obstruction, it is not traveling

The door

WARNING

Failure to test and adjust the safety reverse system may result in serious injury or death from a closing garage door.

once a month and adjust as needed.

GARAGE DOOR

One-inch Board

(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.

Repeat this test

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 30. The garage door with a one-inch object (or 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

Force ControlsLimit Controls

INCREASE TRAVEL

DOWN UP

Adjustment Label

(Located on the left side panel)

Adjustment Label

(Located on the back panel)

Weather conditions may cause some minor changes in door operation requiring some readjustments, particularly during the first year of operation.

Pages 28 and 29 refer to the limit and force adjustments. Only a screwdriver is required. Follow the instructions carefully.

Repeat the safety reverse test (page 30) 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 28 and 29.)

Repeat the safety reverse test. Make any necessary adjustments (See page 30).

Maintenance Schedule

The remote control transmitter

The opener must learn the code of any new remote control. Page 33 explains how to program your

receiver and how to erase all codes if required. Self service of your receiver and remote control is not recommended. If service is needed, call the toll-free number listed on the back page.

The remote control battery

The green battery test light will glow and the opener will operate when the remote control is activated, as long as there is adequate battery power.

If the test light is

dim or off

, replace the battery. Also

check the test light if transmission range decreases. The 12 volt battery should produce power for at least

a year.

Dispose of your old battery properly.

Twice a Year

Check chain tension. Disconnect trolley first.

Adjust if necessary (See page 11).

Once a Year

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

lubrication. Do not grease the door tracks.

Operation of Your Opener

Activate the opener with any of the following devices:

1. The Remote Control Transmitter. Hold push

button down until the door starts to move.

2. The Door Control. Hold button/push bar down until the door starts to move.

3. The Outside Keylock or Keyless Entry.

(See Accessories)

When the Opener is Activated:

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 the Keyless Entry, however, if you press and bar until down travel is complete. If you release the button/push bar too soon, the door will

The opener lights will

blink for 5 seconds

safety reversing sensor causes the door to reverse. Opener Lights will turn on under the following

conditions: When the opener is initially plugged in; when the power is interrupted; when the opener is activated. They will turn off automatically after 4-1/2 minutes or provide constant light when the Light feature is activated. Bulb size is 75 watts maximum.

hold

the button/push

reverse.

when the

WARNING

Weak or broken springs could allow an open door to fall (either rapidly or unexpectedly), resulting in serious injury, death or property damage.

rope and handle closed.

Trolley

Manual disconnect

The lockout feature

prevents the trolley from reconnecting automatically. Pull the 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 manual release handle

NOTICE

and lift the door manually. To reconnect the door to

Manual Release

Handle (Pull Down)

the opener, press the Door Control button/push bar.

position

Release Arm

Trolley

Manual Release Handle

(Pull Down & Back

Towards Opener)

Lockout position

Trolley

NOTICE

Operation of the Door Controls

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.

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 again for 2 seconds. The push bar light will stop flashing. Normal operation will resume. The Lock feature will also turn off whenever the "Smart" button on the opener end panel is activated.

open

Receiver and Remote Control Programming

NOTICE: To comply with FCC rules, adjustment or modification

of this receiver and/or transmitter are prohibited, except for changing the code setting or replacing the transmitter battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.

Your garage door opener receiver and remote control transmitter have been set at the factory to a matching code. The door will open when you press the remote control push button.

Your "Smart" garage door opener will operate with:

• up to twelve "Smart" remote control transmitters

(with green indicator lights),

• a Keyless Entry System, and

• code switch remote controls with red indicator

lights.

Follow the instructions below to program your opener to match any additional remotes you may purchase. See accessories on page 38.

To Add A Remote

1. Press and 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

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.

• Press and hold the "Smart" button on the opener

panel until the indicator light turns off (about 6 seconds).

will be erased.

• To reprogram, repeat Steps 1 - 3 for each remote

control in use.

hold

the remote push button. See

flash once.

To Erase All Remote Control Codes

All

the codes the opener has learned

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(s) 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

Green Battery Indicator Light

Figure 2

Garage Door Opener

(With "Smart" Button)

Do not allow children

Activate the opener only

Model 81LM

Push Button

Code programming instructions are also located on the opener panel.

"Smart"

Button

Indicator

Light

END PANEL

Having a Problem?

Situation Probable Cause & Solution

The opener doesn't operate from either the door control or the remote control:

Opener operates from remote control, 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 11.

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 push bar lit? If not, Remove the bell wire from the opener terminal screws. 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 18.

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 the 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 control only. If this solves the problem, the door control is faulty (replace), or there is an intermittent short on the wire between the door control and the opener.

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 28.

See page 29.

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 28.

Repeat the safety reverse test after any adjustment of door arm length, close force or down limit.

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 23.

2. If the opener lights do not blink and it is a new installation, check the down force. See Adjustment Step 2, page 29. 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 29.

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 23.

. . . 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 28).

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:

The chain droops or sags:

. . . don't turn off:

Is the Light feature on? Turn it

The door may be out of balance or the springs are broken. Close the door and use the manual release to disconnect the trolley. Open and close the door manually. A properly balanced door will stay in any point of travel while being supported entirely by its springs. If it does not, disconnect the opener and call a professional garage door serviceman.

1. The garage door springs are broken. See above.

2. If the problem occurs on the first operation of the opener, door may be locked.

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 32.

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.

It is normal for the chain to droop slightly in the closed door position. Use the manual release to disconnect the trolley. If the chain returns to normal height when the trolley is disengaged and the door reverses on a one-inch board, no adjustments are needed (see page 11).

Do not increase the force to operate the opener.

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

off.

Disable

Repair Parts

Rail Assembly Parts

Installation Parts

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

KEY PART NO. NO. DESCRIPTION

1 41A4202A Multi-function door control panel 2 41A4166 Lighted door control button 3 10A20 3V2032 Lithium battery 4 41A3984-7 Transmitter case, cover & screw only 5 29B137 Transmitter visor clip 6 41A2828 Manual rope & handle assembly 7 217A238 2-Conductor bell wire - white & white/red 8 41A5047 Door bracket w/clevis pin & fastener 9 41A4353 Header bracket w/clevis pin & fastener

10 41A4373A Safety sensor kit (receiving and sending

eyes) with 3' 2-conductor bell wire

attached 11 178B34 Straight door arm section 12 178B35 Curved door arm section 13 12B483 "C " Wrap bracket 14 12B484 Square holed mounting bracket 15 12B485 Slotted mounting bracket

NOT SHOWN

41A2770-2 Installation hardware bag (includes

hardware illustrated on page 7).

41A4116 Safety sensor hardware 114A1915 Owner's manual

RAIL GREASE

NO. 83A4

LOCK

LIGHT

NOTICE

CEILING MOUNT ONLY

Opener Assembly Parts

Repair Parts

Contact

Brown

Wire

Drive

Gear

(Down)

Center Limit

Contact

LIMIT SWITCH ASSY.

(Up)

Contact

Grey

Wire

Yellow

Wire

KEY PART NO. NO. DESCRIPTION

1 41A4208 Chain spreader w/screws (1256, 1246)

1A 31D380 Sprocket cover (all other models)

2 41C4206AGear and sprocket assy. (1256, 1246)

2A 41C4220A Gear and sprocket assy. (All other models)

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 143D152 End panel w/all labels

(1260, 1260-266, 1260-166,1250,

1250-266) 6 143D100 End panel w/all labels (All other models) 7 175B88 Light socket 8 108D34 Lens (1260, 1260-266, 1260-166,

1250, 1250-266)

8A 108D36 Lens (All other models except 1240)

9 30B363 Capacitor - 1/2HP

30B387 Capacitor - 1/3HP

30B366 Capacitor - 1/4HP 10 12A373 Capacitor bracket 11 41A3150 Terminal block w/screws

KEY PART NO. NO. DESCRIPTION

12 41D3058 Universal replacement motor &

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

13 41A3583-2 Cover (1260, 1260-266, 1260-166,

1256, 1255, 1255-166)

41A3583-1 Cover (All other models except 1240)

41A3583 Cover (1240) 14 41A2818 Helical gear & retainer w/grease 15 41D3452 Limit switch asembly 16 41C4398A RPM sensor assembly 17 41C4246 Wire harness assy. w/plug 18 41A2826 Shaft bearing kit 19 41A2822A Interrupter cup assy. 20 41A4252-6B Receiver logic board assy. (1260,

1260-266,1260-166, 1250, 1250-266) Complete with: Logic board, End panel w/all labels, Light socket

41A4252-7B Receiver logic board assy.

(All other models)

21 41A3673 End panel w/all labels (1260,

1260-266, 1260-166, 1250, 1250-266)

41A3712 End panel w/all labels (All other models)

NOT SHOWN

41A2825 Opener assy. hardware kit (includes

screws not designated by a number in illustration).

Accessories Available For Your Opener

Model 1702

Model 60

Model 1708LM

Model 1710LM

Model 66LM

Outside Quick Release:

Required

for a garage with NO

access door.

Outside Keylock:

Opens the garage door automatically from outside when remote control is not handy.

8 foot Complete Rail:

To allow an 8 foot door to open fully.

10 foot Complete Rail:

To allow a 10 foot door to open fully.

Keyless Entry:

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

Model 81LM "Smart" Remote Control:

Includes visor clip.

Model 61LM Single-Function Standard Size

Remote Control:

Includes visor clip.

Model 82LM 2-Channel Remote Control:

Includes visor clip.

Model 83LM

3-Channel Remote Control:

Includes visor clip.

Model 722LM

Model 742LM

Wire-In Light Control:

Controls interior or exterior lights. Wires into the electrical box like a dimmer switch.

Plug-In Light Control:

Controls interior lights. Plugs into a wall receptacle.

Model 84LM

Model 99LM

9 0

7 8

5 6

3 4

1 2

4-Channel Remote Control:

Includes visor clip.

Security Remote Control:

Operate garage door opener by

ENTER

entering 2-3-4 or 5 digit code from backlit keyboard.

Index

Access Door/Outside Key Release Accessory...............................................................................................4, 5

Chain Tension..............................................................................................................................................4, 5, 11

Electrical Safety Warnings........................................................................................................................2, 20, 31

Garage Door

Testing for balance, binding and sticking...................................................................................................3, 28, 31

Determining high point of travel:

Sectional Door..................................................................................................................................................12

One-Piece Door................................................................................................................................................13

Disabling existing locks....................................................................................................................................3, 11

Force Controls

Adjustment Procedures ....................................................................................................................................29

Problems that might require Force adjustments.........................................................................................34, 35

Safety Warnings .........................................................................................................................................29, 31

Door hardware.....................................................................................................................3, 9, 11, 12, 18, 31, 32

Maintenance Instruction Label.......................................................................................................................11, 28

Reinforcement requirements ...........................................................................................................................4, 24

Removing of all ropes......................................................................................................................................3, 11

Possible door damage...................................................................................................................................16, 24

Travel Limits

Adjustment Procedures ....................................................................................................................................28

Problems that might require Limit adjustments...........................................................................................34, 35

Safety Warnings .........................................................................................................................................28, 31

Manual Release Rope & Handle

Lockout Feature..................................................................................................................................................32

Manual Disconnect.............................................................................................................................................32

Safety Warnings ...............................................................................................................................11, 19, 31, 32

Opener Terminals

Door Control Connections ..................................................................................................................................18

Safety Reversing Sensor Connections...............................................................................................................23

Outside Keylock Accessory Connections...........................................................................................................18

Operational Noise

Sprocket noise....................................................................................................................................................11

Vibration noise (isolator kit) ................................................................................................................................34

Receiver and Remote Controls

Programming the receiver ..................................................................................................................................33

Erasing all codes ................................................................................................................................................33

Safety warning....................................................................................................................................................33

Problems with remote control operation.............................................................................................................34

Safety Reverse Test Procedure..........................................................................................................................30

Testing required................................................................................................................................11, 30, 34, 35

Safety Reverse System Problems

Securing header bracket to wall .......................................................................................................................12

Adjusting travel limits........................................................................................................................................28

Applying excessive force on the door...............................................................................................................29

Buckling or uneven floor.................................................................................................................................4, 5

Safety Warnings...........................................................2, 3, 9, 11,12,16, 18, 19, 20, 21, 24, 28, 29, 30, 31, 32, 33

User Instruction Label for garage wall ........................................................................................................11, 18

LIFT-MASTER SERVICE IS

ON CALL

OUR LARGE SERVICE ORGANIZATION

SPANS AMERICA

INST ALLATION AND SER VICE INFORMATION IS AS

NEAR AS YOUR TELEPHONE SIX DAYS A WEEK.

SIMPLY DIAL OUR TOLL FREE NUMBER:

1-800-528-9131

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:

THE CHAMBERLAIN GROUP, INC.

Parts and Service Department

2301 N. Forbes Boulevard, Suite 104

Tucson, Arizona 85745

SERVICE INFORMATION

TOLL FREE NUMBER:

1-800-528-9131

Model 1260 - 1/2HP

Model 1260-266 - 1/2HP

Model 1250 - 1/3HP

Model 1256 - 1/2HP Model 1246 - 1/3HP

Model 1255 - 1/2HP

Model 1255-266 - 1/2HP

Model 1255-2K - 1/2HP

Model 1245 - 1/3HP

Model 1240 - 1/4HP

LIFT-MASTER GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY

Chamberlain/Lift-Master warrants to the first retail purchaser of this product that it will be free from any defect in materials and/or workmanship for a period of twelve full months from the date of purchase. The product must be used in complete accordance with LiftMaster's instructions for installation, operation and care.

LIMITED WARRANTY ON MOTOR

Model 1260, 1260-266: The motor is fully warranted for the lifetime of the product to the first-time purchaser. Models 1256, 1255, 1255-266 & 1255-2K: The motor is warranted 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 warranted 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. Models 1246, 1245: The motor is warranted 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. Models 1240: The motor is warranted to be free from any defect in materials and/or workmanship for a period of 12 full

months (1 year) 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 per iod, the product appears as though it may be defective, CALL OUR TOLL FREE SERVICE NUMBER BEFORE DISMANTLING IT (1-800-528-9131). If the product is then alleged to be defective, please send it pre-paid and insured to our Service Center to obtain warranty repair. You will be advised of shipping instructions when you call the number listed above.

Please be sure to include a brief description of the problem and a dated proof-of-purchase receipt with any product that is returned for warranty repair.

Product under warranty, which upon receipt by Chamberlain/Lift-Master is determined to be defective in materials and/or workmanship, will be repaired or replaced (Chamberlain's option) at no cost to you and returned pre-paid. Defective parts will be repaired or replaced with new or factory rebuild parts at Chamberlain's option.

THE DURATION OF IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY. SOME STATES 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 states 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 state to state.

Liftmaster 1256 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Owner's Manual

CONTENTS PAGE

You'll Need Tools

Sectional Door Installation

One-Piece Door Installation

Opener Carton Inventory

Attach the T-rail to the Opener

Attach Chain to Sprocket and Install Sprocket Cover

Tighten the Chain

IMPORTANT INSTALLATION INSTRUCTIONS

ONE-PIECE Door Without Track

Install the Header Bracket

Attach the T-rail to the Header Bracket

Position the Opener

ONE-PIECE Door without Track

Hang the Opener

Install the Door Control

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

Install the light(s):

Install the lenses:

Install the lens:

Attach the Manual Release Rope and Handle

Electrical Requirements

If permanent wiring is required by your local code, refer to the following procedure:

Install the Safety Reversing Sensor (Receiving and Sending Eyes)

Fasten Door Bracket

All ONE-PIECE Door Installation Procedure

Connect Door Arm to Trolley

SECTIONAL Doors Only

All ONE-PIECE Doors

How and When to Adjust the Limits

Adjust the Force

How and When to Adjust the Forces

Test the Safety Reverse System

IMPORTANT SAFETY INSTRUCTIONS

Care of Your Opener

Maintenance Schedule

Operation of Your Opener

Receiver and Remote Control Programming

Having a Problem?

Repair Parts

Rail Assembly Parts

Installation Parts

Opener Assembly Parts

Index