instruction manual of liftmaster opener 1240

8/13/2019 Instruction Manual of Liftmaster Opener 1240

1/40

TM

TheA DU

Garage Door Opener

Owner's Manual(Model Series 1200)

For Residential Use Only

Model 1260 - 1/2HP

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

Model 1250 - 1/3HP

Model 1250-266 - 1/3HP

Model 1256

Model 1246

Model 1255 - 1/2HP

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

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

Model 124

Comp

UL 325ReguleffectiJanua

Owner's Manual


2/40


3/40

3

SECTIONAL DOOR ONE-PIECE DOOR

Pliers

Wire Cutters

Claw Hammer

Hack Saw

ScrewdriverAdjustable End Wrench

1/2" and 7/16" Socketsand Wrench

Drill

Tape Measure

21

Stepladder

Pencil

3/16", 5/16" and5/32" Drill Bits

Carpenter'sLevel

You'll Need ToolsDuring assembly, installation and adjustment of the opener, instructions will call for hand tools shown below.

An unbalanced garage door might not reversewhen required and someone under the doorcould be seriously injured or killed.

If your garage door binds, sticks or is out ofbalance, call for professional garage doorservice. Garage doors, door springs, cables,pulleys, brackets and their hardware, areunder extreme tension and can cause seriousinjury or death. Do not try to loosen, move oradjust them yourself!

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

Remove all ropes connected to the door beforeinstalling and operating the opener.

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

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

Identify the type and height of your door and anyspecial conditions that exist and any additionalmaterials that may be required by referring to the listson page 4 or page 5.

WARNING

CAUTION

Before you begin, complete the following test tomake sure your door is balanced, and is not

sticking or binding:

Lift the door about halfway as shown. Release thedoor. It should stay in place, supported entirely byits springs.

Raise and lower the door to see if there is anybinding or sticking.


4/404

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

SafetyReversing

Sensor

Horizontal and vertical reinforcementis needed for lightweight garage doors

(fiberglass, steel, aluminum,

door with glass panels, etc.).See page 20 for details.

FINISHED CEILINGSupport bracket &fastening hardware

is required.See page 13.

DoorCenter

Header Wall

SafetyReversing

Sensor

Floor must be levelacross width of door

Extension Spring

Torsion Spring

Access Door

OR

Slack in chain tension

is normal whengarage door is closed.

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

Based on your particular requirements, there areseveral installation steps which might call formaterials and/or hardware not included in thecarton.

Step 1, page 12 - Look at the wall or ceiling abovethe garage door. The header bracket mustbesecurely fastened to structural supports.

Step 5, page 17 - Do you have a finished ceiling inyour garage? If so, a support bracket andadditional fastening hardware may be required.

Safety reversing sensor, page 21 - Dependingupon garage construction, wood blocks may needto be fastened to mounting locations beforesensors are installed.

Step 10, page 22 - Alternate floor mounting of thesafety reversing sensor will require hardware notprovided.

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

Look at the garage door where it meets the floor. Itmust close on the floor all the way across. Other-

wise, the safety reverse system may not workproperly. See page 30. Floor or door should berepaired.

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

ChainPulley

Bracket

HeaderBracket

Trolley

StraightDoorArm

ManualRelease

Rope & Handle

Door BracketGarage

Door

CurvedDoorArm

GarageDoor

Spring

HeaderWall

Chain

Sectional Door Installation

The opener can be installed within 2 feet to the leftor right of the door center if there is a torsion springor center bearing plate in the way of the headerbracket or door bracket area. If your door hasextension springs, the opener must be installedin the center of the door. See pages 12 and 24.

Do you have an access door in addition to thegarage door? If not, Model 1702 Outside QuickRelease is required. See page 38.

Closed Position


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FINISHED CEILINGSupport bracket

& fasteninghardware is required.

See page 17.Slack in chaintensionis normal when

garage door is closed.

SafetyReversing

Sensor

HeaderWall

Access Door

Safety Reversing Sensor

Gap between floor and bottom ofdoor must not exceed 1/4".

5

ChainPulley Bracket

HeaderBracket

Trolley

StraightDoorArm

ManualRelease

Rope & Handle

DoorBracket

CurvedDoorArm

HeaderWall

T-rail

GarageDoor

Before you begin, survey your garage area tosee whether any of the conditions belowapply to your installation.

Based on your particular requirements, there areseveral installation steps which might call formaterials 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 besecurely fastened to structural supports.

Step 5, page 17 - Do you have a finished ceiling inyour garage? If so, a support bracket and additionalfastening hardware (not supplied) may be required

Safety reversing sensor, page 21 - Depending ongarage construction, wood blocks may need to besecurely fastened to mounting locations beforesensors are installed.

Step 10, page 22 - Alternate floor mounting of thesafety 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 islightweight, you can refer to the information relatingto sectional doors on page 24.

Step 11, page 25 - Depending on your door'sconstruction, you might need additional mountinghardware for the door bracket.

Do you have an access door in addition to thegarage door? If not, Model 1702 Outside QuickRelease is required. See page 38.

The gap between the bottom of the garage door andthe floor cannot exceed 1/4". Otherwise, the safetyreverse system may not work properly. Seepage 30. The floor or the door should be repaired.

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

HeaderBracket

ChainPulley

Bracket

DoorBracket Straight

Door Arm

CurvedDoor Arm

Trolley

Manual Release

Rope & Handle

HeaderWall

T-rail

Door

Chain

AccessDoor

Floor must be level

across width of door

Slack in Chain Tensionis Normal When

Garage Door is Closed

SafetyReversing

Sensor

SafetyReversing

Sensor

One-Piece Door Installation One-Piece Door without Track

Closed Position

Closed Position

One-Piece Door with Track


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Opener Carton InventoryYour garage door opener is packaged in two cartons which contain all parts illustrated bmissing, carefully check the packing material. Parts may be "stuck" in the foam. Hardwashown on page 7.

Door Bracket Plate

Door Bracket

Header Bracket

UP

CEILIN

GMOU

NTON

LY

Safety Reversing SensorMounting Bracket

"C" Wrap (2)

2-Conductor Bell WireWhite & White/Red

LIGHT

LOCK

Multi-Function DoorControl Panel

Lighted Door Control Buttonw/6ABx1-1/2" screws

Light Lens (1)

Light Lens (2)

Remote ControlTransmitter Visor Clip

One-PieceT-rail

ChainPulley Bracket

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

(Models 1256, 1255, 1255-266,

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

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

(Models 1256, 1255, 1255-266,1255-166, 1246, 1245, & 1245-266)

Keyless Entry

(Models 1260-266, 1260-166, 1255-266,1255-166, 1250-266 & 1245-266 only)

Remote ControlTransmitter

with 12V battery

(Models 1260-266 &1255-266 (2)

All Other Models (1))

Trolley

C


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Lock Nut1/4"-20 (4)

Carriage Bolts1/4"-20x1/2" (4)

Safety Reversing SensorInstallation Hardware Kit #41A4116

Hex Screw1/4-20x1-1/2" (2)

Screw#10-32 x3/8" (4)

Lock Nut#10x32 (4)

Wing Nut (2)

InsulatedStaples (20)

Lag Screw1/4x1-1/2" (4)

7

Nut 5/16"-18 (6)

Clevis Pin5/16"x2-3/4" (1)

NOTICE

Handle

Insulated Staples (10)

Installation Hardware Kit # 41A2770

Dry Wall Anchors (2)

Clevis Pin5/16"x1" (2)

Hex Screw5/16"-18x7/8" (4)

Rope

Carriage Bolt5/16"-18x2-1/2" (2)

Ring Fastener (3)Screw6ABx1" (2)

Lock Washer 5/16" (6)

Lag Screw5/16"-18 x1-7/8" (4)

RAILG

REAS

E

NO.83

A4

Rail Grease

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


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Assembly Step 1Attach the T-rail to the OpenerFor Models 1260, 1260-266, 1255,1255-266,1250, 1250-266, 1245, 1245-266 and 1240

To fasten rail, use only tin top of the opener. Acause serious damage to

USE ONLY THISTYPE AND SIZE

SCREW

Was5/1

CAU

See page 9 for Models 1256 and 1246.

Remove the two washered screws mounted in topof 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! Use of any other screwswill cause serious damage to door opener.

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

REMOVE STYROFOAM.

Assembly Step 2Attach Chain to Sprocket andInstall Sprocket CoverFor Models 1260, 1260-266, 1255,1255-266,1250, 1250-266, 1245, 1245-266 and 1240

Position chain over the opener sprocket. Ifnecessary, loosen the outer nut on the trolley toobtain more chain slack.

Insert the second washered screw.CAUTION: Use only the screw previouslyremoved 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 thecover slightly and insert the front tab in the slot onthe mounting plate.


SCREWW

Chain

T-railHole

Serious injury can resentangled in moving opsprocket cover securely.

while your hand is near t

WAR


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9

Place the opener on packing material to protectthe cover.

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

Align T-rail and styrofoam over opener sprocket.

Assembly Step 1Attach the T-rail to the OpenerFor Models 1256 and 1246 only


SCREW

WasheredScrews

5/16"-18x1/2"

Chain

T-rail

StyrofoamPackaging

OpenerSprocket

To fasten rail, use only those screws mountedin the top of the opener. Any other screws willcause serious damage to the opener.

CAUTION


SCREW

Washered Screws5/16"-18x1/2"

Chain

T-rail

OpenerChassis

StyrofoamPackaging

MountingPlate

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 screwspreviously removed. Tighten securely.

Remember to use only these screws! Any otherscrews will cause serious damage to the opener.


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Assembly Step 2Attach the Chain Spreaderand Re-install the ChainFor Models 1256 and 1246 only

10

ChainSpreader

#8x1"Hex Screw

USE ONLYTHIS TYPEAND SIZE

SCREW

T-railFlange

Slot

Washers

Trolley

TrolleyThreaded

Shaft

OuterNut

T-rail

Inner Nutand Washer

OpenerSprocket

Install ChainIn This Direction

ChainSpreader

Chain

8-ToothSprocket

6-ToothSprocket

Chain

Spreader

Opener

Mounting Plate

Opener

Mounting Plate

ChainSpreader

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

Securely fasten the chain spreader with thehardware provided.

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

Guide the chain around the selected groove in thechain spreader (to engage either the8-tooth sprocket or the 6-tooth sprocket) as shown.

Continue dispensing the chain forward to thetrolley. Reconnect the trolley to the trolley threadedshaft. Proceed to page 11 for chain tighteninginstructions.

Serious injury can result if fingers becomeentangled in moving opener sprocket. Attachsprocket cover securely. Never operate openerwhile your hand is near the opener sprocket.

WARNING


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

To tighten the chain, turn outer nut in the direction

shown. As you turn the nut, keep the chainfrom twisting.

When the chain is approximately 1/2" above thebase of the T-rail at its midpoint, re-tighten theinner nut to secure the adjustment.

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

When installation is complete, you may notice somechain droop with the door closed. This is normal. Ifthe chain returns to the position shown when thedoor is open, do not re-adjust the chain.

NOTE: During future maintenance, ALWAYSpull the manual release handle to disconnecttrolley before adjusting chain.

LockWasher

To Tighten Outer Nut

Inner Nut

Trolley

Chain

Base of T-rail

1/2"

To TightenInner Nut

Outer Nut

Assembly Step 3Tighten the Chain(All Models)

IMPORTANT INSTALLATION INSTRUCTIONS

To reduce the risk of severe injury or death to persons:

1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS

2. Install only on a properly balanced and lubricated garage door. An improperly balanced doorcould result in severe injury or death. Repairs to cables, spring assemblies and other hardwaremust be made by a professional service person before installing opener.

3. Disable all locks and remove all ropes connected to the garage door before installing the opener.Ropes connected to a garage door can cause entanglement and death.

4. If possible, install door opener 7 feet or more above floor with the manual release handlemounted 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 smallchildren cannot reach and away from all moving parts of the door.

7. Install the User Safety Instruction Label on the wall adjacent to the control button and theMaintenance 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 aone-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.

11

You have now finished assembling your garage door opener. Please read the followingwarnings before proceeding to the installation section.

WARNING WARNING


12/40

Open your door to the highestpoint of travel as shown. Drawan intersecting horizontal lineon the header wall 2" abovethe high point. This height willprovide travel clearance for thetop edge of the door.

HeaderWall

Ceiling

Track

Highest Pointof Travel

Door

2"

Door

VerticalGuideline

Finished

CeilingVerticalGuidelineHeader

Wall2x4

Structural

Supports

SECTIONAL Doors andONE-PIECE Door With Track

Close the doovertical cente

Extend the linabove the do

Remember, yheader bracke

left or right ofa torsion spriplate is in theit to the ceilinwhen clearan

If you need to on a 2x4 (on wscrews (not suthe 2x4 to stru

here and on pa

Installation Section: Pages 12 27

Installation Step 1Determine Header Bracket LocationInstallation procedures vary according to garage

door types. Follow the instructions which apply toyour door.

If the header bracket is a structural support oceiling, the safety revework properly (see pagnot reverse when requiserious injury or death.

The garage door sprinbrackets and their hardwtension. Do not attempadjust them yourself. Sor death could result.

service.

WAR


13/40

Header WallVertical

Centerline

Vertical

Centerline ofGarage Door

2x4

UnfinishedCeiling

Structural

Supports

2x4

OPTIONAL CEILING MOUNTFOR HEADER BRACKET

Close the door and mark the

inside vertical centerline ofyour garage door. Extend theline onto the header wallabove door.

If headroom clearance isminimal, you can install theheader bracket on the ceiling.See page 14.

If you need to install theheader bracket on a 2x4 (onwall or ceiling), use lag screws(not supplied) to securely

fasten the 2x4 to structuralsupports as shown.

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.

13

Header Wall


Door

Distance

JambHardware

Door


HeaderWall

Pivot

Distance

ONE-PIECE Door Without Track

Open your door to the highest point of travel asshown. Measure the distance from the top of thedoor to the floor. Subtract the actual height of thedoor. Add 8" to the remainder. (See Example).

Close the door and draw an intersecting horizontalline on the header wall at the determined height.

If the total number of inches exceeds the heightavailable in your garage, use the maximumheight possible, or refer to page 14 for ceiling

installation.

One-piece door without track

jamb hardware

One-piece door without track

pivot hardware

Read the Safety Instructions on page 12. They also apply to doors without tracks.


14/40

Lag Screws5/16"x18x1-7/8"

HighestPoint of Travel

(of Garage Door)

VerticalCenterLine

HeaderWall

GarageDoor

UP

CEILING MOUNT ONLY

WallMounting Holes

OptionalWall Mounting

Holes

The nail hole is for positioningonly. You must use lag screws to

mount the header bracket.

UPCEILIN

G MOU

NTON

LY

2"

DoorSpring

HeaderBracket

2x4StructuralSupport

VerticalCenter

Line

14

UP

CEILING MOUNT ONLY

Ceiling Mounting Holes

The nail hole is for positioning only.You must use lag screws to mount

the header bracket.

You can attach the header bracket either to thewall above the garage door, or to the ceiling.Follow the instructions which will work best foryour particular requirements.

Fasten the Header Bracket to the Wall

Center the bracket on the vertical guideline withthe bottom edge of the bracket on the horizontalline as shown (with the arrow pointing toward

the ceiling).

Mark either set of bracket holes (do not use theholes designated for ceiling mount). Drill 3/16" pilotholes and fasten the bracket securely to a structural

support with the hardware provided.

Extend the vertical guideline onto the ceiling asshown.

Center the bracket on the vertical mark, no morethan 6" from the wall. Make sure the arrow ispointing toward the wall. The bracket can bemounted 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 astructural support with the hardware provided.

Fasten the Header Bracket to the Ceiling

Installation Step 2Install the Header Bracket

Lag Screw5/16"-18x1-7/8"

Hardware Shown Actual Size

UP

Lag Screws5/16"x18x1-7/8"

Garage

Door

VerticalCenter Line

HeaderWall

FinishedCeiling

HeaderBracket

6" Maximum

VerticalCenter Line

DoorSpring


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Header

Bracket

ChainPulley

Bracket

TemporarySupport

Header Wall

GarageDoor

T-rail

Clevis Pin5/16"x2-3/4 "

Ring Fastener

Header Bracket

ChainPulleyBracket

T-rail

INCREASETRAVEL

DOWN

UP

Position the opener on the garage floor below theheader bracket. Use packing material as aprotective 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 thespring.

Position the chain pulley bracket against the headerbracket.

Align the bracket holes and join with a clevis pin asshown.

Insert a ring fastener to secure.

15

Installation Step 3Attach the T-rail to the Header Bracket

Clevis Pin5/16"x2-3/4" Ring Fastener



16/40

Installation Step 4Position the OpenerFollow instructions which apply to your door typeas illustrated.

To prevent damage to steel, aluminum,fiberglass or glass panel doors, do not rest theopener on the door without using a 2x4.

SECTIONAL Door & ONE-PIECE Door with Track

T-rail 2x4

Door

Stepladder

ONE-PIECE Door without Track

With the door fully open and parallel to the floor,measure the distance from the floor to the top ofthe door.

Using a stepladder as a support, raise the openerto the same distance as the door from the floor (itwill be at a slight angle as shown).

The top of the door should be level with the top ofthe opener. Do not position the opener more than2" above this point.

Top of Opener

HeaderBracket

Stepladder

Top of Door

16

CAUTION

A 2x4 laid flat is convenient for setting an idealdoor-to-T-rail distance.

Raise the opener onto a stepladder.

You will need help at this point if the ladder isnot tall enough.

Open the door all the way and place a 2x4 laid flaton the top section beneath the T-rail.

If the top panel hits the trolley when you raisethe door, pull down on the trolley release armto disconnect inner and outer sections. Thetrolley can remain disconnected until Step 12is completed.

Trolley

TrolleyRelease Arm


17/40

Installation Step 5Hang the Opener

Two representative installations are shown.Yours may be different. Hanging brackets shouldbe angled, Figure 1, to provide rigid support. Onfinished ceilings, Figure 2, attach a sturdy metalbracket to structural supports before installing theopener. The bracket and fastening hardware are notsupplied.

Measure the distance from each side of the openerto the structural support.

Cut both pieces of the hanging bracket to requiredlengths.

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

Attach one end of each bracket to a support with5/16"x1-7/8" lag screws.

Fasten the opener to the hanging brackets with5/16"-18x7/8" hex screws, lock washers and nuts.

Check to make sure the T-rail is centered over thedoor (or in line with the header bracket if thebracket is not centered above the door).

Remove the 2x4. Operate the door manually. If thedoor hits the rail, raise the header bracket.

MeasureDistance

Lag Screws5/16"x1-7/8"

StructuralSupports

5/16"-18x7/8" Screw5/16" Lock Washer

5/16"-18 Nut

Bracket(Not Supplied)

Lag Screws5/16"x1-7/8"

(Not Supplied)5/16"-18x7/8" Screw5/16" Lock Washer

5/16"-18 Nut

FINISHED CEILING

5/16"-18x7/8" Screw5/16" Lock Washer

5/16"-18 Nut

HiddenSupport

17

The opener could fall and injure someone if it isnot properly secured. Fasten the openersecurely to structural supports of the garage.

Lag Screw5/16"-18x1-7/8"

Hex Screw5/16"- 18x7/8" Nut 5/16"-18 Lock Washer 5/16"


WARNING

Figure 1

Figure 2RAILGR

EASE

NO.83

A4

Rail Grease

Grease the top and underside of the railsurface where the trolley slides. A tube ofgrease is supplied.


18/40

Installation Step 6Install the Door Control

Children operating or pdoor opener can injure The garage door couserious injury or death.

Install the Door Control (buttons) out of the reachfrom all moving parts ohardware, but where theDo not allow children button(s) or the remote c

A moving garage door under it. Activate the odoor is properly adjusted

and there are no obstruct

2-ConductorBell Wire

LightedDoor

ControlTerminalScrews

2-ConductorBell Wire

WHT

2

RED

1

Strip 1/4" of insulation from one end of the bellwire; connect the wire to the two screw terminals

on the back of the door control by color: white to 2and white/red to 1.

Locate the door control within sight of the doorat a minimum height of 5 feet where smallchildren cannot reach, and away from allmoving parts of the door and door hardware.Fasten the Lighted Door Control Button securelywith 6ABx1-1/2" screws. The Multi-Function DoorControl Panel uses 6ABx1" screws. If installing

into drywall, drill 5/32" holes and use the anchorsprovided.

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

Receiver terminals screws and the antenna arelocated on the back panel of the opener. Positionthe antenna wire as shown.

Then connect the bell wire to the opener terminalscrews: white to 2 and white/red to 1.

Remember to affix the User Safety Instructionlabel to the wall near the Door Control, and theMaintenance Instruction label in a prominentlocation on the inside of the garage door.

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

If the label adhesive will not adhere to your garagewall surface (or becomes loose with time) use tacksto secure the label alongside the control button.

Do NOT connect the poopener at this time. The tfull openposition but close position until tconnected and properly a

See Safety Reversing

beginning on page 21.

Dry Wall Anchors

InsulatedStaples

6ABx1" ScrewMulti-Function Door Control Panel

6ABx1-1/2" ScrewLighted Door Control Button


Outside Keylock Acce

To opener terminal screws:

WA

M11

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

& 1240

I t ll ti St 7


19/40

Lens Slot

75 Watt Max.Light Bulb

Lens Tab

LightLens

Panel Screw

Install the light(s): Install a 75 watt maximum light bulb in each

socket. The light(s) will turn ON and remain lit forapproximately 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 DoorOpener" bulb.

Install the lenses:(Models 1260, 1260-266, 1260-166, 1250 and

1250-266 only)

See Figure 1.

Slide each lens in to the guides. Snap bottom tabsinto lens slots.

Reverse the procedure to remove the lensesInstall the lens:(All other Models except 1240)

See Figure 2.

Locate and loosen (approximately 1/8") the twoscrews near top of opener front panel. Positionlens against panel with slotted tabs directly belowscrews. 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 7Install the Light(s) and the Lens(es)

Installation Step 8Attach the Manual ReleaseRope and Handle Do not use the red handle to pull the door

open or closed. The rope knot could becomeuntied and you could fall. Use the manualrelease only to disengage the trolley and, ifpossible, only when the door is closed.

Garage doors are heavy. If the door is openwhen the handle is pulled, the door couldclose inadvertently if it is not properly

balanced. Serious injury may result to personsunder the door. Make sure the doorway is clearof persons and obstructions before pullinghandle when door is open.

Thread one end of the rope through the hole in thetop of the red handle so "NOTICE" reads right sideup as shown. Secure with an overhand knot.

The knot should be at least 1" from the end of therope to prevent slipping.

Thread the other end of the rope through the hole inthe release arm of the outer trolley.

Adjust rope length so the handle is 6 feet above thefloor. Secure with an overhand knot.

If it is necessary to cut the rope, heat seal the cutend with a match or lighter to prevent unraveling.

Trolley

NOTICE

OverhandKnot

ManualRelease Handle

Rope

OverhandKnot

TrolleyRelease Arm

19

LensGuide

LensTab

LensSlot

75 Watt Max.Light Bulb

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

WARNING

Figure 1

Figure 2

Installation Step 9 WARNING


20/40

To reduce the risk of electric shock, your garagedoor opener has a grounding type plug with a thirdgrounding pin. This plug will onlyfit into a groundingtype outlet.

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

Installation Step 9Electrical Requirements

Ground Tab

GreenGroundScrew

Ground Wire

BlackWire

Permanent wiring

connection

White Wire

BlackWire

To make a permanent connection through the7/8" diameter hole in the top of the opener(according to local code):

Remove the opener cover screws and set thecover aside.

Remove the attached 3-prong cord.

Connect the black (line) wire to the screw on the

brass terminal; the white (neutral) wire to thescrew on the silver terminal; and the ground wireto the green ground screw. The opener must begrounded.

Reinstall the cover.

20

To prevent electrocution or fire, installationand wiring must be in compliance with localelectrical and building codes.

Right WrongTo avoid installation difficulties,

do not run the opener at this time.

To avoid installation difficulties,do not run the opener at this time.

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:

To prevent electrocution, remove power fromthe garage door opener and from the circuit

you plan to use for the permanentconnection.

WARNING

WARNING

Information you'll need before you begin the installation of the safety reversing sensor.


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The safety reversing sensor mustbe connectedand aligned correctly before the garage dooropener will move in the down direction. This is arequired safety device and cannot be disabled.

Installation procedures are the same for sectionaland one-piece doors.

Without a properly working safety reversingsensor, persons (particularly children) couldbe injured or killed by a closing garage door.Read and follow all instructions.

To protect small children, install the safetyreversing sensor so that the beam will be nohigher than 4"-6" above the garage floor.

Disconnect power to the garage door openerbefore installing the safety reversing sensor.

Invisible Light Beam

Protection Area

Sensor

UnitSensor

Unit

Right Side of Garage

Left Side of Garage

Figure 1: Facing the door from inside the garage

The brackets must be securely fastened to a solidsurface such as the studs on either side of the door,or add a piece of wood at each location if installing inmasonry 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 thebeam while the door is closing. If it does, use a pieceof wood to build out each sensor mounting location tothe minimum depth required for light beam clearance.

21

Be sure power to the opener is disconnected.

The sending eye transmits an invisible light beam tothe receiving eye.The units can be installed oneither side of the garage door as long as the sunnever shines directly into the receiving eye lens.

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

The brackets must be connected and fastened sothat the sending and receiving eyes face each otheras shown in Figure 1.

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

WARNING

Installation Step 10

Figure 2


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GarageFloor

InsideGarage

Wall

Alternate Floor Mount

Mounting Bracketwith Slot

Mounting Bracketwith Square Holes

"C" Wrap

Sensor

IndicatorLight

Attach withconcrete anchors

(not provided)

1/4x1-1/2"Lag Screw

#10-32x3/8"Screw

1/4" - 20Lock Nut

#10x32Lock Nut Staples

1/4"-20x1/2"Carriage Bolts

Installation Step 10Install the Safety Reversing Sensor(Receiving and Sending Eyes)

Mounting Bracket

With Square Holes

#10-32x3/8"

Screws

"C" Wrap

#10-32Lock Nuts

Garage WALL or DOOR TRACK Installation

InsideGarage

Wall

"C" Wrap


1/4"-20x1/2"Carriage Bolts

1/4"-20 Lock Nuts

Drill 3/8"Holes

GarageDoor Track

Garage DOOR Track Installation

Mounting Bracketwith Slot

1/4"-20Lock Nuts

1/4x1-1/2"Lag Screws

1/4-20x1/2" Carriage Bolts(with square shoulder)

InsideGarage

Wall

"C" Wrap


Garage WALL Installation

Figures 2 , 3 and 4 show recommended assemblyof bracket(s) and "C" wrap based on the wallinstallation of the sensors on each side of thegarage door as shown on page 17, or on thegarage door tracks themselves.

For Garage Wall or Door TrackInstallation Fasten the "C" wraps to the mounting brackets

having square holes, using the hardware shown inFigure 2.

For Door Track Installation Only Discard slotted bracket. Drill 3/8" holes in each

track and fasten securely with hardware as shownin Figure 3.

For Wall Installation Connect each assembly to a slotted bracket, using

the hardware shown in Figure 4. Note alignmentof brackets for left and right sides of the door.

Finger tighten the lock nuts.

Use bracket mounting holes as a template tolocate and drill (2) 3/16" diameter pilot holes onboth sides of the garage door, 4"-6" above thefloor (but not exceeding 6"). (See warning onpage 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. Makesure all door hardware obstructions are cleared.Tighten the nuts securely.

"C" Wrap

InsideGarage

Wall


Mounting Bracket

with Slot

Alternate Wall Mount

Sensor

GarageFloor

Indicator Light

22


Figure 3

Figure 4

Figure 5

Figures 5 and 6 are variations which may fit your installation requirements better. Make sure the wraps andbrackets are aligned so the sensors will face each other across the garage door.

Figure 6

Insert the wire connector into each


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Invisible Light BeamProtection AreaSensor

Sensor

Connect Wire toOpener Terminals

Bell Wire

Bell Wire Finished Ceiling

O

Wall ControlConnections(dotted line)

Wing N

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

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

Plug in the opener. Make sure the Lock Feature isoff. Green indicator lights in both the sending andreceiving eyes will glow steadily if wiring

Push con

until you hWire Connector

White Tab

Safety Sensor

Trouble S

1. If the sending eyeindicatsteadilyafter installation,

Electric power to the op

A short in the white or wcan occur under staplesconnections.

Incorrect wiring between

An open wire (wire brea

Figure 7s a

sensor and push until you hear aclick, Figure 7. The white tab on thesensor should be flush with the backof the connector.

Center each sensor unit

pointing toward each oth Secure sensors with the

tighten the wing nut on tfor final adjustment. Seceye wing nut.

Installation Step 11 CAUTION


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pFasten Door BracketFollow instructions which apply to your door typeas illustrated below or on page 25.

To prevent damage to steel, aluminum,fiberglass or glass panel doors, alwaysreinforce the inside of the door both verticallyand horizontally with angle iron.

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

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

Center the door bracket on the previously markedvertical 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 topedge of the door.

B) The top edge of the bracket directly below anystructural 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 isvertical reinforcement.

If your installation doesn't require vertical reinforce-

ment but does need top and bottom fastening holesfor the door bracket, position the door plate over thedoor bracket as shown in Figure 2. Fasten securelywith hardware shown in Figure 1.

24

VerticalGuideline

DoorBracket

Nut5/16"-18

Carriage Bolt5/16"-18x2-1/2"

Lock Washer5/16"

Vertical

Guideline

DoorBracketLocation

HeaderBracket

DoorBracket

Door

BracketPlate

Inside Edgeof Door or

Reinforcement Board

Horizontal and vertical reinforcementis needed for lightweight garage doors

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

Vertical

Reinforcement

SECTIONAL Door Installation Procedure

Nut 5/16"-18 Lock Washer 5/16"



CAUTION

Figure 1

Figure 2

All ONE-PIECE Door Installation Procedure


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DoorBracket Top of Door

(Inside Garage)


OptionalPlacement

Lock Washer5/16"

Nut5/16"-18

Horizontal and vertical

reinforcement is needed forlightweight garage doors

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

Header Wall

VerticalCenterline ofGarage Door

Finished Ceiling

OptionalPlacement

of DoorBracket

HeaderBracket

Top Edgeof Door

2x4 Support

DoorBracket

For a door with noexposed framing or forthe optional installation,use 5/16"x1-1/2" lagscrew (not supplied) tofasten door bracket.

Center the bracket on the top of the door, in linewith the header bracket as shown. Mark holes.

Drill 5/16" pilot holes and fasten the door bracketwith hardware supplied.

If the door has no exposed framing, drill 3/16" pilotholes 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 topedge of the door if required for your installation.(Refer to the dotted line optional placementdrawing.) Drill 3/16" pilot holes and substitute5/16"x1-1/2" lag screws (not supplied) to fastenthe bracket to the door.

25

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


Nut 5/16"-18 Lock Washer 5/16"


Installation Step 12


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Connect Door Arm to TrolleyFollow instructions which apply to your door typeas illustrated below and on page 27.

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 inFigures 1, 2 and 3.

Figure 2:

Bring arm sections together. Find two pairs of holesthat line up and join sections. Select holes as farapart as possible to increase door arm rigidity.

RingFastener

DoorBracket

Clevis PinCurved

Door Arm

StraightDoor Arm

ClevisPin

Inner Trolley

Outer Trolley

LockWashers

5/16"

Nuts5/16"-18

Door Bracket

Screws5/16"-18x7/8"

ManualReleaseHandle

Rope

Figure 3:

If holes in curved arm are above holes in straightarm, disconnect straight arm. Cut about 6" fromthe solid end. Reconnect to trolley with cut enddown as shown.

Bring arm sections together.

Find two pairs of holes that line up and join withscrews, lock washers and nuts.

LockWashers

5/16"

Nuts5/16"-18

Screws5/16"-18x7/8"

Cut This End

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

26

Figure 1:

Fasten straight door arm section to outer trolleywith a clevis pin. Secure the connection with aring fastener.

Fasten curved section to the door bracket in thesame way as shown.

SECTIONAL Doors Only

Lock Washer 5/16"Nut 5/16"-18 Ring Fastener

Hex Screw5/16"- 18x7/8"

Clevis Pin5/16"x1"


Figure 1 Figure 2

Figure 3

Hole Alignment Alternative

All ONE-PIECE Doors


27/40

Assemble the Door Arm:

Fasten the straight and curved door arm sectionstogether to the longest possible length (with a 2 or3 hole overlap).

With the door closed, connect the straight doorarm section to the door bracket with a clevis pin.

Secure with a ring fastener.

Nuts5/16"-18Lock

Washers5/16"

RingFastener

StraightArm

Screws5/16"-18x7/8

DoorBracket

Clevis Pin

CurvedDoor Arm

On one-piece doors, before connecting the door arm to the trolley the travel limits must be adjusted. Limit adjust-ment screws are located on the left side panel as shown on page 28. Follow adjustment procedures below.

Door Arm

Fully OpenTrolley

Door ArmConnector Hole

ClosedDoor Open Door Door with

Backward Slant

Door ArmConnector Hole

Fully ClosedTrolley

Door Arm

Adjustment Procedures for One-Piece Doors

Open Door Adjustment:Decrease UP limit

Turn the UP limit adjustment screw counter-clockwise 5-1/2 turns.

Press the Door Control button/push bar. Thetrolley 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 inback of the door arm connector hole. Refer to thefully open trolley/door arm positions in theillustration. If the arm does not extend far enough,adjust the limit further. One full turn equals 2" oftrolley travel.

Closed Door Adjustment:Decrease DOWN limit

Turn the DOWN limit adjustment screw clockwise5 complete turns.

Press the Door Control button/push bar. The trolleywill travel to the fully closed position.

Manually close the door and lift the door arm to thetrolley. The arm should touch the trolley just ahead

of the door arm connector hole. Refer to the fullyclosed trolley/door arm positions in the illustration. Ifthe arm is behind the connector hole, adjust thelimit 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 maybe 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.

27


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Adjustment Step 2

WA


29/40

Adjustment Step 2Adjust the Force

Too much force on the dthe proper operation osystem. The door mighwhen required and cou

kill someone under it.force beyond the minimuclose the door. Do adjustments to compensticking garage door. Tsystem following all alevels. See page 30.

Force adjustment controls are located on the back

panel of the opener. Force adjustment settingsregulate the amount of power required to open andclose the door.

The door will stopin the updirection if anythinginterferes with its travel. The door will reversein thedowndirection if anything interferes with its travel(including binding or unbalanced doors).

If the forces are set too light, door travel may beinterrupted by nuisance reversalsin the down

direction and stopsin the up direction. Weatherconditions can affect the door movement, sooccasional adjustment may be needed.

The maximum force adjustment range is260 degrees, about 3/4 of a complete turn. Do notforce controls beyond that point. Turn forceadjustment controls with a screwdriver.

Back Panelof Opener

How and When to Adjust the Forces

Test the DOWN (close) force:Grasp the door bottom when the door is abouthalfway through DOWN (close) travel. The doorshould reverse.

(Reversal halfway through downtravel does not guarantee reversal on a two-inchobstruction. See page 30.) If the door is hard tohold or doesn't reverse, decrease the DOWN (close)force by turning the control counterclockwise.

Make 10 degree turn adjustments until the doorreverses normally After each adjustment run the

Make 10 degree turn adjustmeasily. After each adjustmena complete travel cycle.

If the door doesn't open atIncrease UP (Open) force by

clockwise. Make 10 degree door opens completely. Re-

necessary. After each adjusth h l t t l

Adjustment Label

KG KG

1

3

9

7

5

1

3

9

7

5

WA

Adjustment Step 3T t Th S f t R i S

WARNING


30/40

Adjustment Step 4Test the Safety Reverse System

Test:

Place a one-inch board (or a 2x4 laid flat) on thefloor, centered under the garage door.

Operate the door in the down direction. The doormust reverse on striking the obstruction.

Adjustment:

If the door stops on the obstruction, it is not travelingfar enough in the down direction.

Increase the DOWN limit by turning the DOWNlimit adjustment screw counterclockwise 1/4 turn.

Repeat the test.

On a sectional door, make sure limit

adjustments do not force the door arm beyond astraight up and down position. See theillustration on page 26.

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

If the door will not reverse after repeatedadjustment attempts, call for professionalgarage door service.

GARAGE DOOR

One-inch Board(2x4 laid flat)

Failure to test and adjust the safety reversesystem may result in serious injury or deathfrom a closing garage door. Repeat this testonce a month and adjust as needed.

30

Test The Safety Reversing Sensor

Press the remote control push button to openthe door.

Place the opener carton in the path of the door.

Press the remote control push button to close thedoor. The door will not move more than an inch,and the opener light(s) will flash.

The garage door opener will not close from aremote if the indicator light in either sensor isoff, alerting you to the fact that the sensor ismisaligned or obstructed.

The garage door can be closed by pressing andholding the door control button/push bar until downtravel is completed.

Professional service is required if the openercloses the door when the safety reversingsensor is obstructed. Safety Reversing Sensor Safety Reversing Sensor

Without a properly working safety reversingsensor, persons (particularly children) could beseriously injured or killed if trapped by a closinggarage door. Repeat this test once a month.

Important safety check:

Repeat Adjustment Steps 1, 2 and 4 after:

Each adjustment of door arm length, force controlsor 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.

WARNING


31/40


32/40

Receiver and Remote Control Programm


33/40

Children operating or p

door opener can injure The garage door couserious injury or death.to operate the door ccontrol transmitter(s).

A moving garage doosomeone under it. Actiwhen you can see the doobstructions, and is prop

To Add A Remote

1. Press and hold the remote push button. SeeFigure 1.

2. Then press and release the "Smart" button on theback panel of the opener in Figure 2. The openerlights on the panel will flash once.

3. Release the remote push button.

Now the opener will operate when the remote controlpush button is pressed.

If you release the remote control push buttonbefore the opener lights flash, the opener will notaccept the code.

To Erase All Remote Control Codes

Press and hold the "Smart" button on the openerpanel until the indicator light turns off (about 6seconds). All the codes the opener has learned

will be erased. To reprogram, repeat Steps 1 - 3 for each remote

control in use.

Your garage door opener receiver and remote controltransmitter have been set at the factory to a matchingcode. The door will open when you press the remotecontrol 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 indicatorlights.

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

Mo

Single Functi

Green BatteryIndicator Light

Garage D(With "Sm

1 2

WA

Figure 1

Figure 2

NOTICE: To comply with FCC rules, adjustment or modificationof this receiver and/or transmitter are prohibited, except forchanging the code setting or replacing the transmitter battery.THERE ARE NO OTHER USER SERVICEABLE PARTS.


34/40

Having a Problem? (continued)


35/40

Situation Probable Cause & Solution

The door reversesfor no apparentreason and openerlights don't blink:

1. Is something obstructing the door? Pull the manual releasemanually. If it is unbalanced or binding, call for professiona

2. Clear any ice or snow from the garage floor area where the

3. Review the force adjustment procedures on page 29.

4. If door reverses in the fully closed position, decrease the tra

Repeat safety reverse test after adjustments to force orfor occasional adjustment of the force and limit settingconditions in particular can affect door travel.

The door reverses forno apparent reasonand opener lightsblink for 5 secondsafter reversing:

The opener lights:. . . don't turn on:

Replace the light bulbs (75 watts maximum). Use a standard nbulb if regular bulb burns out.

. . . don't turn off:

Is the Light feature on? Turn it off.

The opener strainsor maximum force isneeded to operatedoor:

The door may be out of balance or the springs are broken. Clomanual release to disconnect the trolley. Open and close the balanced door will stay in any point of travel while being supposprings. If it does not, disconnect the opener and call a professerviceman. Do not increase the force to operate the open

The opener motorhums briefly, thenwon't work:

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

2. If the problem occurs on the first operation of the opener, doothe door lock. If the chain was removed and reinstalled, the m

Remove the chain; cycle the motor to the down position. ObsWhen it turns in a clockwise direction and stops in the down p

Repeat the safety reverse test after the adjustment is co

The opener won'toperate due to

1. Use the manual release to disconnect the trolley. The door can man all When the po er is restored press the door control p

The door opens butwon't close:

Check the safety reversing sensor. Remove any obstruction oSee page 23.

1. If the opener lights blink, check the safety reversing sensor

2. If the opener lights do not blink and it is a new installation, cSee Adjustment Step 2, page 29. For an existing installatio

Repeat the safety reverse test after the adjustment is c

Repair Parts


36/40

12

LIGHT

LOCK

12

5

NOTICE

10

4

3

2

1

3

4

Rail Assembly Parts

Installation Parts

KEY PARTNO. NO. DE

1 1A995 M

2 41A4813 Ch

3 41A3489 Co

4 183B99 On

5 41D3484 Fu

6 83A4 Ra

KEY PARTNO. 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 sendingeyes) with 3' 2-conductor bell wireattached


37/40

Accessories Available For Your Opener

Model 1702 Outside Quick Release: Model 81LM "Smart" Remote Control:


38/40

Model 83LM

Model 742LM

Model 84LM

Model 60

Model 66LM

Model 1702

3-Channel Remote Control:

Includes visor clip.

4-Channel Remote Control:


Keyless Entry:

Enables homeowner to operategarage door opener from outsideby entering code on speciallydesigned keyboard.

Outside Keylock:Opens the garage doorautomatically from outside whenremote control is not handy.

Plug-In Light Control:

Controls interior lights. Plugs into awall receptacle.

Outs de Qu c e ease

Requiredfor a garage with NOaccess door.

10 foot Complete Rail:

To allow a 10 foot door to open fully.

8 foot Complete Rail:

To allow an 8 foot door to open fully.

Model 61LM Single-Function Standard SizeRemote Control:


ode 8 S a t e ote Co t o


Model 82LM 2-Channel Remote Control:


Model 1708LM

Model 1710LM

Model 99LM Security Remote Control:

Operate garage door opener byentering 2-3-4 or 5 digit code frombacklit keyboard.

12

34

56

78

90

ENTE

R

38

Model 722LM Wire-In Light Control:

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


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instruction manual of liftmaster opener 1240

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