Chamberlain Garage Door Opener 2595LM 3 4 HP User Manual

The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

www.liftmaster.com

GARAGE DOOR OPENER

Model 2595LM 3/4 HP

For Residential Use

Install on Sectional Doors ONLY

THIS OPERATOR IS INTENDED FOR USE ONLY WITH I-BEAM RAILS.

Owner’s Manual

■ Please read this manual and the enclosed safety materials carefully!

■ Fasten the manual near the garage door after installation.

■ The door WILL NOT CLOSE unless the Protector System^®is connected and

properly aligned.

■ Periodic checks of the opener are required to ensure safe operation.

■ The model number label is located under the light lens on the left side

panel of your opener.

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Preparing your garage door

WARNING

Before you begin:

To prevent possible SERIOUS INJURY OR DEATH:

• Disable locks.

• ALWAYS call a trained door systems technician if

garage door binds, sticks, or is out of balance. An

unbalanced garage door may not reverse when

required.

• NEVER try to loosen, move or adjust garage door, door

springs, cables, pulleys, brackets or their hardware, all

of which are under EXTREME tension.

• Disable ALL locks and remove ALL ropes connected to

garage door BEFORE installing and operating garage

door opener to avoid entanglement.

• Remove any ropes connected to garage door.

• Complete the following test to make sure your

garage door is balanced and is not sticking or

binding:

1. Lift the door about halfway as shown. Release

the door. If balanced, it should stay in place,

supported entirely by its springs.

2. Raise and lower the door to see if there is any

binding or sticking.

If your door binds, sticks, or is out of balance, call a

trained door systems technician.

CAUTION

To prevent damage to garage door and opener:

• ALWAYS disable locks BEFORE installing and operating

the opener.

• ONLY operate garage door opener at 120V, 60 Hz to

avoid malfunction and damage.

Tools needed

During assembly, installation and adjustment of the

opener, instructions will call for hand tools as

illustrated below.

Pencil

Carpenter's

Level (Optional)

Hack Saw

Tape Measure

Wire Cutters

Drill

Claw Hammer

3/16", 5/16" and

5/32" Drill Bits

Pliers

1/2" and 7/16" Sockets

and Wrench

Stepladder

Screwdriver

Adjustable End Wrench

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Planning

WARNING

Identify the type and height of your garage door.

Survey your garage area to see if any of the

conditions below apply to your installation. Additional

materials may be required. You may find it helpful to

refer back to this page and the accompanying

illustrations as you proceed with the installation of

your opener.

Without a properly working safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

• The gap between the bottom of the garage door and

the floor MUST NOT exceed 1/4" (6 mm). Otherwise,

the safety reversal system may not work properly.

• The floor or the garage door MUST be repaired to

eliminate the gap.

SECTIONAL DOOR INSTALLATION

FINISHED CEILING

Support bracket &

fastening hardware

is required.

Horizontal and vertical reinforcement

is needed for lightweight garage doors

(fiberglass, steel, aluminum, door with

glass panels, etc.). See page 18 for details.

See page 11.

Slack in chain tension

is normal when

garage door is closed.

Header Wall

Motor Unit

Extension

Spring

Torsion

Spring

Vertical

Centerline of

Garage Door

Access

Door

Wall-

mounted

Door

Control

Safety

Reversing

Sensor

Gap between floor

and bottom of door

Safety Reversing Sensor

must not exceed 1/4" (6 mm)

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Carton Inventory

Your garage door opener is packaged in two cartons

which contain the motor unit and all parts illustrated

below. Accessories will depend on the model

purchased. If anything is missing, carefully check the

packing material. Parts may be stuck in the foam.

Hardware for installation is also listed below.

Securityꢀ^®

Remote Control

Transmitter Visor Clip

LOCK

LIGHT

3-Button Remote Control

Chassis Support

Bracket

Motion Detecting

Door Control Panel

Header Bracket

Chain

Motor Unit With Light Lenses

Chain Spreader

Door Bracket

Rail

2 Conductor Bell Wire

White & White/Red

Safety Sensor Bracket (2)

Trolley

Curved Door

Arm Section

Chain Pulley

Bracket

Safety Labels

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye)

with 2-Conduction White &

and

Straight Door

Arm Section

Literature

Extension

Bracket (2)

White/Black Bell Wire attached

INSTALLATION HARDWARE

Hex Screws 8-32x1" (2)

Screw #8-32x3/8"

Insulated Staples (30)

Ring Fastener (3)

Drywall Anchors (2)

Rail Grease

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

Lag Screw 5/16"-9x1-5/8" (2)

Lag Screw 5/16"-18x1-7/8" (2)

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

Clevis Pin 5/16"x1-1/4" (1)

Clevis Pin 5/16"x1" (1)

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

Wing Nut 1/4"-20 (2)

Lock Nut 1/4"-20

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

Rope

Nut 5/16"-18 (4)

Lock Washer 5/16" (4)

Screw 6ABx1-1/4" (2)

Screw 6-32x1" (2)

Self-Threading Screw 1/4"-14x5/8" (2)

Washered Bolt 5/16"-18x1/2" (2)

Hex Bolt 1/4"-20x5/8" (4)

Handle

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ASSEMBLY STEP 1

CAUTION

To avoid SERIOUS damage to opener, ONLY use

bolts/fasteners, mounted in top of motor unit.

Attach the Rail to the Motor Unit

To avoid installation difficulties, do not run the

garage door opener until instructed to do so.

Figure 1

Washered Bolt

5/16"-18x1/2"

• Remove the bolt and lock nut from the top of the

motor unit.

Lock Nut

• Place rail onto the bolt mounted on the motor unit

and align the back hole with the hole in the top of

the unit.

• Fasten rail with the washered bolt and lock nut

previously removed. Tighten securely. (Figure 1)

Remember to use only these bolts/fasteners!

Any other bolts/fasteners will cause serious

damage to the opener.

Hex Screws

8-32x1"

ASSEMBLY STEP 2

Attach the Chain Spreader

Washers

Chain

Spreader

Figure 2

Motor Unit

Sprocket

• Attach chain spreader to the motor unit with two

screws (Figure 2).

• Guide the chain around the selected groove in the

chain spreader, to engage either the 8-tooth

sprocket or the 6-tooth sprocket (Figure 3).

NOTE: The 6-tooth sprocket is for use with

Carriage House Doors and the 8-tooth sprocket is

for use with Regular Doors.

Figure 3

Chain Spreader

6-Tooth

Chain Spreader

Sprocket

8-Tooth

Sprocket

Motor Unit

Mounting Plate

Motor Unit

Mounting Plate

WARNING

ASSEMBLY STEP 3

Attach the Chassis Support Bracket

To avoid possible SERIOUS INJURY to fingers from

moving garage door opener:

• ALWAYS keep hand clear of sprocket while operating

opener.

• Position the rail support bracket on the unit.

• Attach the bracket to the rail with 1/4"-20x5/8" hex

bolts and lock washers. Do not overtighten.

• Securely attach chain spreader BEFORE operating.

• Attach the bracket to the opener by inserting a

5/16"-18x1/2" washered screw through a hole in

each side flange and a matching hole in the

bracket. Complete the connection by inserting the

#8-32x3/8" screw through the back flange and the

hole in rail support (Figure 4).

Figure 4

Hex Bolts 1/4"-20x5/8"

w/Lock Washers

Screw

#8-32x3/8"

Washered Bolt

5/16"-18x1/2"

Washered Bolt

Proceed to Assembly Step 4.

5/16"-18x1/2"

Chassis

Support

Opener

Bracket

Back Flange

Opener

Side Flange

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Lock

ASSEMBLY STEP 4

Tighten the Chain

Washer

Outer Nut

Inner Nut

To Tighten Outer Nut

• Spin the inner nut and lock washer down the

threaded shaft, away from the trolley.

To Tighten

Inner Nut

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

shown. As you turn the nut, keep the chain

from twisting.

Trolley

• When the chain is approximately 1/2" (13 mm)

above the base of the rail at its midpoint,

re-tighten the inner nut to secure the adjustment.

Chain

Sprocket noise can result if chain is either too

loose or too tight.

1/2" (13 mm)

When installation is complete, you may notice some

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

the chain returns to the position shown when the

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

Base of Rail

NOTE: During future maintenance, ALWAYS pull the

emergency release handle to disconnect trolley

before adjusting chain.

You have now finished assembling your garage

door opener. Please read the following warnings

before proceeding to the installation section.

INSTALLATION

IMPORTANT INSTALLATION INSTRUCTIONS

WARNING

To reduce the risk of SEVERE INJURY or DEATH:

1. READ AND FOLLOW ALL INSTALLATION WARNINGS

8. NEVER wear watches, rings or loose clothing while

installing or servicing opener. They could be caught in

garage door or opener mechanisms.

9. Install wall-mounted garage door control:

• within sight of the garage door.

AND INSTRUCTIONS.

2. Install garage door opener only on properly balanced

and lubricated garage door. An improperly balanced

door may not reverse when required and could result in

SEVERE INJURY or DEATH.

3. All repairs to cables, spring assemblies and other

hardware MUST be made by a trained door systems

technician BEFORE installing opener.

4. Disable all locks and remove all ropes connected to

garage door BEFORE installing opener to avoid

entanglement.

5. Install garage door opener 7 feet (2.13 m) or more

above floor.

6. Mount emergency release handle 6 feet (1.83 m) above

floor.

• out of reach of children at minimum height of 5 feet

(1.5 m).

• away from all moving parts of the door.

10. Place entrapment warning label on wall next to garage

door control.

11. Place manual release/safety reverse test label in plain

view on inside of garage door.

12. Upon completion of installation, test safety reversal

system. Door MUST reverse on contact with a

1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on

the floor.

7. NEVER connect garage door opener to power source

until instructed to do so.

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INSTALLATION STEP 1

Determine the Header Bracket

Location

Unfinished

Ceiling

OPTIONAL

CEILING

MOUNT

FOR

HEADER

BRACKET

WARNING

2x4

Header Wall

To prevent possible SERIOUS INJURY or DEATH:

Vertical Centerline

of Garage Door

• Header bracket MUST be RIGIDLY fastened to

structural support on header wall or ceiling, otherwise

garage door might not reverse when required. DO NOT

install header bracket over drywall.

2x4

Structural

Supports

• Concrete anchors MUST be used if mounting header

bracket or 2x4 into masonry.

• NEVER try to loosen, move or adjust garage door,

springs, cables, pulleys, brackets, or their hardware, all

of which are under EXTREME tension.

• ALWAYS call a trained door systems technician if

garage door binds, sticks, or is out of balance. An

unbalanced garage door might not reverse when

required.

Level

(optional)

SECTIONAL DOOR ONLY

1. Close the door and mark the inside vertical

centerline of the garage door.

2. Extend the line onto the header wall above the

door.

You can fasten the header bracket within 4 feet

(1.22 m) of the left or right of the door center

only if a torsion spring or center bearing plate

is in the way; or you can attach it to the ceiling

(see page 9) when clearance is minimal. (It may

be mounted on the wall upside down if

Header Wall

2" (5 cm)

Track

Highest Point

of Travel

Sectional door

with curved

track

necessary, to gain approximately 1/2" (1 cm).)

Door

If you need to install the header bracket on a 2x4

(on wall or ceiling), use lag screws (not provided)

to securely fasten the 2x4 to structural supports as

shown here and on page 9.

3. Open your door to the highest point of travel as

shown. Draw an intersecting horizontal line on the

header wall 2" (5 cm) above the high point. This

height will provide travel clearance for the top edge

of the door.

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INSTALLATION STEP 2

Install the Header Bracket

Wall Mounting Holes

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. Do not install the header bracket

over drywall. If installing into masonry, use

concrete anchors (not provided).

CEILING MOUNT ONLY

The nail hole is for

positioning only.

You must use lag screws

to mount the header bracket.

Optional

Wall Mounting Holes

WALL HEADER BRACKET INSTALLATION

• Center the bracket on the vertical centerline with

the bottom edge of the bracket on the horizontal

line as shown (with the arrow pointing toward the

ceiling).

Vertical

Centerline of

Garage Door

Header

Wall

Lag Screws

5/16"x9x1-5/8"

• Mark the vertical 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.

2x4

Structural

Support

Header

Bracket

Door Spring

HARDWARE SHOWN ACTUAL SIZE

Horizontal

Line

Garage

Door

Highest Point of

Garage Door Travel

Vertical

Centerline of

Garage Door

Lag Screw

5/16"-9 x 1-5/8"

CEILING HEADER BRACKET INSTALLATION

• Extend the vertical centerline onto the ceiling as

shown.

• Center the bracket on the vertical mark, no more

than 6" (15 cm) 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.

— Finished Ceiling —

Vertical

Centerline

of Garage Door

Header

Bracket

• Mark the side holes. Drill 3/16" pilot holes and

fasten bracket securely to a structural support with

the hardware provided.

6" (15 cm)

Maximum

Door

Spring

Lag Screws

5/16"-9x1-5/8"

Ceiling Mounting Holes

CEILING MOUNT ONLY

Header Wall

The nail hole is for

positioning only.

You must use lag screws

to mount the header bracket.

Garage Door

Vertical

Centerline

of Garage Door

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INSTALLATION STEP 3

Attach the Rail to the Header

Bracket

Header Wall

Header

Bracket

Chain

• Position the opener on the garage floor below the

header bracket. Use packing material as a

protective base. NOTE: 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 rail to clear the spring.

Pulley

Bracket

Header

Bracket

Ring

Fastener

• Position the rail bracket against the header

bracket.

Clevis Pin

5/16"x2-3/4"

• Align the bracket holes and join with a clevis pin

as shown.

Chain

Pulley

Bracket

• Insert a ring fastener to secure.

Rail

Garage

Door

HARDWARE SHOWN

ACTUAL SIZE

Ring Fastener

Temporary

Support

Clevis Pin 5/16"x2-3/4"

INSTALLATION STEP 4

CAUTION

To prevent damage to garage door, rest garage door

opener rail on 2x4 placed on top section of door.

Position the Opener

SECTIONAL DOOR ONLY

A 2x4 laid flat is convenient for setting an ideal

door-to-rail distance.

• Raise the opener onto a stepladder. You will need

help at this point if the ladder is not tall enough.

Rail

• Open the door all the way and place a 2x4 laid flat

on the top section beneath the rail.

• If the top section or panel hits the trolley when you

raise the door, pull down on the trolley release arm

to disconnect inner and outer sections. Slide the

outer trolley toward the motor unit. The trolley can

remain disconnected until Installation Step 12

is completed.

2x4 is used to determine

Door

the correct mounting height

from ceiling.

Trolley

Release Arm

ENGAGED

RELEASED

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INSTALLATION STEP 5

WARNING

To avoid possible SERIOUS INJURY from a falling

garage door opener, fasten it SECURELY to structural

supports of the garage. Concrete anchors MUST be used

if installing any brackets into masonry.

Hang the Opener

Three representative installations are shown. Yours

may be different. Hanging brackets should be angled

(Figure 1) to provide rigid support. On finished

ceilings (Figure 2 and Figure 3), attach a sturdy

metal bracket to structural supports before installing

the opener. This bracket and fastening hardware are

not provided.

Figure 1

Structural

Supports

1. Measure the distance from each side of the motor

unit to the structural support.

Lag Screws

Measure

Distance

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

2. Cut both pieces of the hanging bracket to required

lengths.

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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

4. Attach one end of each bracket to a support with

5/16"-18x1-7/8" lag screws.

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

5. Fasten the opener to the hanging brackets with

5/16"-18x7/8" hex bolts, lock washers and nuts.

6. Check to make sure the rail is centered over the

door (or in line with the header bracket if the

bracket is not centered above the door).

Figure 2

Hidden

Support

7. Remove the 2x4. Operate the door manually. If the

door hits the rail, raise the header bracket.

Bracket

(Not Provided)

FINISHED CEILING

8. Grease the top and underside of the rail surface

where the trolley slides with rail grease.

Lag Screws

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

NOTE: DO NOT connect power to opener at this

time.

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

HARDWARE SHOWN ACTUAL SIZE

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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

Figure 3

Lag Screws

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

Hex Bolt

5/16"-18x7/8"

FINISHED CEILING

Lock Washer 5/16"

Nut 5/16"-18

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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INSTALLATION STEP 6

Install the Door Control

WARNING

To prevent possible SERIOUS INJURY or DEATH from

electrocution:

Locate door control within sight of the door at a

minimum height of 5 feet (1.5 m) where small children

cannot reach, and away from moving parts of the door

and door hardware. The installation surface must be

smooth and flat. If installing into drywall (Figure 1),

drill 5/32" holes and use anchors provided. For pre-

wired installations (as in new home construction), it

may be mounted to a single gang box (Figure 2).

NOTE: After installation, a green indicator light behind

the cover will indicate proper connection. If not lit, the

Lock and Light features will not function (reverse

wires to correct).

• Be sure power is not connected BEFORE installing door

control.

• Connect ONLY to 24 VOLT low voltage wires.

To prevent possible SERIOUS INJURY or DEATH from a

closing garage door:

• Install door control within sight of garage door, out of

reach of children at a minimum height of 5 feet (1.5 m),

and away from all moving parts of door.

• NEVER permit children to operate or play with door

control push buttons or remote control transmitters.

• Activate door ONLY when it can be seen clearly, is

properly adjusted, and there are no obstructions to door

travel.

• ALWAYS keep garage door in sight until completely

closed. NEVER permit anyone to cross path of closing

garage door.

1. Strip 7/16" (11 mm) of insulation from one end of

bell wire and connect to the two screw terminals on

back of door control by color: white wire to 2 and

white/red wire to the 1 (Figure 3).

2. Remove white cover by gently prying at slot in top

of the cover with a small flat head screwdriver.

Fasten with 6ABx1-1/4"self-tapping screws (drywall

installation) or 6-32x1" machine screws (into gang

box) as follows:

HARDWARE SHOWN ACTUAL SIZE

Insulated

Staples

Screw 6ABx1-1/4"

(std installation)

• Drill and install bottom screw, allowing 1/8" to

protrude above wall surface.

• Position bottom of door control on screw head and

slide down to secure. Adjust screw for snug fit.

Screw 6-32x1"

(pre-wired installation)

Drywall Anchors

• Install top screw with care to avoid cracking plastic

housing. Do not overtighten.

STANDARD WALL MOUNT

To Replace

Insert Top

Tabs First

• Insert top tabs and snap on cover.

NOTE: The push bar may stick if the door control is

not mounted on a smooth surface. If a click is not

heard when pressing the push bar, loosen the two

mounting screws or relocate the door control to a

smoother surface.

PRE-WIRED INSTALLATION

OFF

Detector

Switch

Push Bar Cover

24 Volt Bell Wire

To Replace

Insert Top

Tabs First

Figure 1

3. (Standard installation only) Run bell wire up wall

and across ceiling to motor unit. Use insulated

staples to secure wire in several places. Do not

pierce wire with a staple, creating a short or open

circuit.

Top

Mounting

Hole

24 Volt

Bell Wire

Detector

Switch

OFF

Push Bar Cover

Door

4. Strip 7/16" (11 mm) of insulation from end of bell

wire. Connect bell wire to the quick-connect

terminals as follows: white to white and white/red to

red.

Control

Terminal

Screws

Figure 2

Bottom

Mounting

Hole

NOTE: When connecting multiple door controls to the

opener, twist same color wires together. Insert wires

into quick-connect holes: white to white and red/white

to red.

(BACK VIEW)

Figure 3

Door Control

Connections

To release wire, push in tab

with screwdriver tip

5. Use tacks or staples to permanently attach

entrapment warning label to wall near door control,

and manual release/safety reverse test label in a

prominent location on inside of garage door.

NOTE: DO NOT connect the power and operate the

opener at this time. The trolley will travel to the full

open position but will not return to the close position

until the sensor beam is connected and properly

aligned. See Safety Reversing Sensor Instructions

beginning on page 15.

White

Red

Grey

7/16" (11 mm)

Strip wire 7/16" (11 mm)

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INSTALLATION STEP 7

CAUTION

Install the Light

To prevent possible OVERHEATING of the endpanel or

light socket,

• Press the release tabs on both sides of lens.

Gently rotate lens back and downward until the

lens hinge is in the fully open position. Do not

remove the lens.

• DO NOT use short neck or specialty light bulbs.

• DO NOT use halogen bulbs. Use ONLY incandescent.

• Install up to a 100 watt maximum light bulb in each

socket. The light will turn ON and remain lit for

approximately 4-1/2 minutes when power is

connected. Then the lights will turn OFF.

100 Watt (Max)

Standard Light Bulb

• Reverse the procedure to close the lens.

Release Tab

• If the bulbs burn out prematurely due to vibration,

replace with a Garage Door Opener bulb.

NOTE: Use only standard light bulbs. The use of

short neck or speciality light bulbs may overheat the

endpanel or light socket.

Lens

Hinge

100 Watt (Max)

Standard Light Bulb

INSTALLATION STEP 8

Attach the Emergency Release

Rope and Handle

WARNING

To prevent possible SERIOUS INJURY or DEATH from a

falling garage door:

• If possible, use emergency release handle to

disengage trolley ONLY when garage door is

CLOSED. Weak or broken springs or unbalanced

door could result in an open door falling rapidly

and/or unexpectedly.

• NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

• 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 at

least 1" (2.5 cm) 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.

• NEVER use handle to pull door open or closed. If

rope knot becomes untied, you could fall.

• Adjust rope length so the handle is 6 feet (1.83 m)

above the floor. Secure with an overhand knot.

NOTE: If it is necessary to cut the rope, heat seal

the cut end with a match or lighter to prevent

unraveling.

Overhand

Knot

Trolley

Release Arm

Rope

NOTICE

Emergency

Release Handle

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INSTALLATION STEP 9

WARNING

Electrical Requirements

To prevent possible SERIOUS INJURY or DEATH from

electrocution or fire:

To avoid installation difficulties, do not run the

opener at this time.

• Be sure power is not connected to the opener, and

disconnect power to circuit BEFORE removing cover to

establish permanent wiring connection.

• Garage door installation and wiring MUST be in

compliance with all local electrical and building codes.

• NEVER use an extension cord, 2-wire adapter, or

change plug in ANY way to make it fit outlet. Be sure

the opener is grounded.

To reduce the risk of electric shock, your garage door

opener has a grounding type plug with a third

grounding pin. This plug will only fit into a grounding

type outlet. If the plug doesn’t fit into the outlet you

have, contact a qualified electrician to install the

proper outlet.

PERMANENT WIRING

CONNECTION

RIGHT

WRONG

Ground Tab

If permanent wiring is required by your local

code, refer to the following procedure.

Green

Ground Screw

To make a permanent connection through the 7/8"

hole in the top of the motor unit:

Black

Wire

Ground Wire

• Remove the motor unit cover screws and set the

cover aside.

• Remove the attached 3-prong cord.

Black Wire

White Wire

• 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. The opener must be

grounded.

• Reinstall the cover.

To avoid installation difficulties, do not run the

opener at this time.

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INSTALLATION STEP 10

WARNING

Install The Protector System

• Be sure power is not connected to the garage door

opener BEFORE installing 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.

• To prevent SERIOUS INJURY or DEATH from a closing

garage door:

– Correctly connect and align the safety reversing

sensor. This required safety device MUST NOT be

disabled.

IMPORTANT INFORMATION ABOUT

THE SAFETY REVERSING SENSOR

– Install the safety reversing sensor so beam is NO

HIGHER than 6" (15 cm) above garage floor.

When properly connected and aligned, the sensor

will detect an obstacle in the path of its electronic

beam. The sending eye (with an amber indicator

light) transmits an invisible light beam to the

receiving eye (with a green indicator light). If an

obstruction breaks the light beam while the door is

closing, the door will stop and reverse to full open

position, and the opener lights will flash 10 times.

If it is necessary to mount the units on the wall, the

brackets must be securely fastened to a solid surface

such as the wall framing. Extension brackets (see

accessories) are available if needed. If installing in

masonry construction, add a piece of wood at each

location to avoid drilling extra holes in masonry if

repositioning is necessary.

The units must be installed inside the garage so that

the sending and receiving eyes face each other

across the door, no more than 6" (15 cm) above the

floor. Either can be installed on the left or right of the

door as long as the sun never shines directly into the

receiving eye lens.

The invisible light beam path must be unobstructed.

No part of the garage door (or door tracks, springs,

hinges, rollers or other hardware) may interrupt the

beam while the door is closing.

The mounting brackets are designed to clip onto the

track of sectional garage doors without additional

hardware.

Sensor Beam

6" (15 cm) max.

above floor

Invisible Light Beam

Protection Area

6" (15 cm) max.

above floor

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INSTALLING THE BRACKETS

Figure 1

Be sure power to the opener is disconnected.

Install and align the brackets so the sensors will face

each other across the garage door, with the beam no

higher than 6" (15 cm) above the floor. They may be

installed in one of three ways, as follows:

DOOR TRACK MOUNT (RIGHT SIDE)

Door

Track

Garage door track installation (preferred):

Lip

Indicator

light

• Slip the curved arms over the rounded edge of

each door track, with the curved arms facing the

door. Snap into place against the side of the track.

It should lie flush, with the lip hugging the back

edge of the track, as shown in Figure 1.

Sensor

Bracket

Lens

If your door track will not support the bracket

securely, wall installation is recommended.

Wall installation:

Figure 2

• Place the bracket against the wall with curved

arms facing the door. Be sure there is enough

clearance for the sensor beam to be unobstructed.

WALL MOUNT (RIGHT SIDE)

Inside

• If additional depth is needed, an extension bracket

or wood blocks can be used.

arage

Extension

Bracket

• Use bracket mounting holes as a template to

locate and drill (2) 3/16" diameter pilot holes on

the wall at each side of the door, no higher than 6"

(15 cm) above the floor.

Lag Screw

1/4x1-1/2"

• Attach brackets to wall with lag screws.

Lock Nut

1/4"-20

• If using extension brackets or wood blocks, adjust

right and left assemblies to the same distance out

from the mounting surface. Make sure all door

hardware obstructions are cleared.

Sensor

Bracket

Indicator

light

Floor installation:

Hex Bolt

Lens

1/4-20x5/8

• Use wood blocks or extension brackets to elevate

sensor brackets so the lenses will be no higher

than 6" (15 cm) above the floor.

Figure 3

FLOOR MOUNT (RIGHT SIDE)

• Carefully measure and place right and left

assemblies at the same distance out from the wall.

Be sure all door hardware obstructions are

cleared.

Lens

Indicator

light

Sensor

Bracket

Lock Nut

1/4"-20

• Fasten to the floor with concrete anchors as

shown.

Lag Screw

1/4x1-1/2"

Hex Bolt

1/4-20x5/8

Inside

arage

Extension

Bracket

HARDWARE SHOWN ACTUAL SIZE

Lag Screw

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

Hex Bolt

1/4"-20x5/8" (2)

Lock Nut

1/4"-20 (2)

Carriage Bolt

1/4"-20x1/2"

Wing Nut

1/4"-20

Staples

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MOUNTING AND WIRING THE SAFETY SENSORS

Figure 4

• Slide a 1/4"-20x1/2" carriage bolt head into the slot

on each sensor. Use wing nuts to fasten sensors to

brackets, with lenses pointing toward each other

across the door. Be sure the lens is not obstructed

by a bracket extension (Figure 4).

Wing Nut

Carriage Bolt

1/4"-20x1/2"

• Finger tighten the wing nuts.

Lens

• Run the wires from both sensors to the opener. Use

insulated staples to secure wire to wall and ceiling.

TROUBLESHOOTING THE SAFETY SENSORS

• Strip 7/16" (11 mm) of insulation from each set of

wires. Separate white and white/black wires

sufficiently to connect to the opener quick-connect

terminals. Twist like colored wires together. Insert

wires into quick-connect holes: white to white and

white/black to grey (Figure 5).

1. If the sending eye indicator light does not glow

steadily after installation, check for:

• Electric power to the opener.

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

can occur at staples, or at opener connections.

• Incorrect wiring between sensors and opener.

• A broken wire.

ALIGNING THE SAFETY SENSORS

• Plug in the opener. The indicator lights in both the

sending and receiving eyes will glow steadily if

wiring connections and alignment are correct.

2. If the sending eye indicator light glows steadily but

the receiving eye indicator light doesn't:

• Check alignment.

The sending eye amber indicator light will glow

regardless of alignment or obstruction. If the green

indicator light in the receiving eye is off, dim, or

flickering (and the invisible light beam path is not

obstructed), alignment is required.

• Check for an open wire to the receiving eye.

3. If the receiving eye indicator light is dim, realign

either sensor.

NOTE: When the invisible beam path is obstructed

or misaligned while the door is closing, the door will

reverse. If the door is already open, it will not close.

The opener lights will blink 10 times. (If bulbs are not

installed, 10 clicks can be heard.) See page 15 .

• Loosen the sending eye wing nut and readjust,

aiming directly at the receiving eye. Lock in place.

• Loosen the receiving eye wing nut and adjust

sensor until it receives the sender’s beam. When

the green indicator light glows steadily, tighten the

wing nut.

Connect Wire to

Opener Quick-Connect Terminals

Figure 5

Finished

Ceiling

Bell Wire

1. Strip wire 7/16"

7/16"

(11 mm)

Bell Wire

(11mm)

2. Twist like colored

wires together

3. Insert into

appropriate terminals

Red

Grey

White

Quick-Connect Terminals

Sensor

Invisible Light Beam

Protection Area

Sensor

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INSTALLATION STEP 11

CAUTION

Fiberglass, aluminum or lightweight steel garage doors

WILL REQUIRE reinforcement BEFORE installation of

door bracket. Contact your door manufacturer for

reinforcement kit.

Fasten the Door Bracket

Follow instructions which apply to your door type as

illustrated below or on the following page.

A horizontal reinforcement brace should be long

enough to be secured to two or three vertical

supports. A vertical reinforcement brace should

cover the height of the top panel.

Header

Bracket

Figure 1 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.

Door

Bracket

Location

NOTE: Many door reinforcement kits provide for

direct attachment of the clevis pin and door arm. In

this case you will not need the door bracket; proceed

to Step 12.

HORIZONTAL AND VERTICAL

REINFORCEMENT IS NEEDED

FOR LIGHTWEIGHT GARAGE

DOORS (FIBERGLASS,

ALUMINUM, STEEL, DOORS

WITH GLASS PANEL, ETC.).

(NOT PROVIDED)

Vertical

Centerline

of Garage

Door

SECTIONAL DOORS

1. Center the door bracket on the previously marked

vertical centerline used for the header bracket

installation. Note correct UP placement, as

stamped inside the bracket.

Figure 1

Vertical

2. Position the top edge of the bracket 2"-4"

(5-10 cm) below the top edge of the door, OR

directly below any structural support across the top

of the door.

Reinforcement

(Not Provided)

Vertical

Centerline

of Garage Door

Vertical

Reinforcement

Vertical

Centerline

of Garage Door

Bolt

3. Mark, drill holes and install as follows, depending

on your door’s construction:

5/16"-18x2"

Metal or light weight doors using a vertical angle

iron brace between the door panel support and

the door bracket:

Door

Bracket

Lock Washer

5/16"

Door

Nut

• Drill 3/16" fastening holes. Secure the door bracket

using the two 1/4"-14x5/8" self-threading screws.

(Figure 2A)

Bracket

5/16"-18

Self-Threading

Screw

1/4"-14x5/8"

Figure 2B

• Alternately, use two 5/16" bolts, lock washers and

nuts (not provided). (Figure 2B)

Figure 2A

Inside Edge

(Not Provided)

Metal, insulated or light weight factory reinforced

doors:

of Door or

Reinforcement Board

Bolt

5/16"x2"

• Drill 3/16" fastening holes. Secure the door bracket

using the self-threading screws. (Figure 3)

Wood Doors:

• Use top and bottom or side to side door bracket

holes. Drill 5/16" holes through the door and

secure bracket with 5/16"x2" carriage bolts, lock

washers and nuts (not provided). (Figure 4)

Vertical

Centerline

of Garage Door

Vertical

Centerline

of Garage

Door

NOTE: The 1/4"-14x5/8"

self-threading screws are

not intended for use on

HARDWARE

SHOWN

ACTUAL SIZE

Self-Threading

Screw

1/4"-14x5/8"

Figure 4

wood doors.

Self-Threading

Screw

Figure 3

1/4"-14x5/8"

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INSTALLATION STEP 12

Connect Door Arm to Trolley

Inner Trolley

SECTIONAL DOORS ONLY

Outer Trolley

• Make sure garage door is fully closed. Pull the

emergency release handle to disconnect the outer

trolley from the inner trolley. Slide the outer trolley

back (away from the door) about 2" (5 cm) as

shown in Figures 1, 2 and 3.

Clevis Pin

5/16"x1"

Ring

Fastener

• Figure 1:

– Fasten straight door arm section to outer trolley

with the 5/16"x1" clevis pin. Secure the

connection with a ring fastener.

Door

Bracket

Straight

Door Arm

– Fasten curved section to the door bracket in the

same way, using the 5/16"x1-1/4" clevis pin.

Curved

Door Arm

• Figure 2:

Clevis Pin

5/16"x1"

Figure 1

– 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.

• Figure 3, Hole alignment alternative:

– If holes in curved arm are above holes in straight

arm, disconnect straight arm. Cut about 6"

(15 cm)from the solid end. Reconnect to trolley

with cut end down as shown.

– Bring arm sections together.

Lock

Washers

5/16"

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

bolts, lock washers and nuts.

• Proceed to Adjustment Step 1, page 20. Trolley will

re-engage automatically when opener is operated.

Nuts

5/16"-18

Emergency

Release

Handle

Bolts

5/16"-18x7/8"

Door Bracket

Figure 2

HARDWARE SHOWN ACTUAL SIZE

Nut 5/16"-18

Lock Washer 5/16" Ring Fastener

Lock

Washers

5/16"

Clevis Pin

5/16"x1" (Trolley)

Clevis Pin

Hex Bolt

Nuts

5/16"-18

5/16"x1-1/4" (Door Bracket) 5/16"-18x7/8"

Bolts

5/16"-18x7/8"

Cut This End

Figure 3

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ADJUSTMENT STEP 1

WARNING

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

• Incorrect adjustment of garage door travel limits will

interfere with proper operation of safety reversal

system.

Adjust the UP and DOWN Travel

Limits

Limit adjustment settings regulate the points at which

the door will stop when moving up or down.

To operate the opener, press the Door Control push

bar. Run the opener through a complete travel cycle.

• Does the door open and close completely?

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• Does the door stay closed and not reverse

unintentionally when fully closed?

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" high (3.8 cm) object (or 2x4 laid

flat) on floor.

If your door passes both of these tests, no limit

adjustments are necessary unless the reversing test

fails (Adjustment Step 3, page 22).

Adjustment procedures are outlined below. Read the

procedures carefully before proceeding to

Adjustment Step 2. Use a screwdriver to make limit

adjustments. Run the opener through a complete

travel cycle after each adjustment.

CAUTION

To prevent damage to vehicles, be sure fully open door

provides adequate clearance.

NOTE: Repeated operation of the opener during

adjustment procedures may cause the motor to

overheat and shut off. Simply wait 15 minutes and

try again.

Cover

Protection

Bolt

NOTE: If anything interferes with the door’s upward

travel, it will stop. If anything interferes with the

door’s downward travel (including binding or

unbalanced doors), it will reverse.

Left Side Panel

2-4"

(5-10 cm)

HOW AND WHEN TO ADJUST THE LIMITS

• If the door does not open completely but opens

at least five feet (1.5 m):

Limit Adjustment Screws

Increase up travel. Turn the UP limit adjustment

screw clockwise. One turn equals 3" (7.5 cm) of

travel.

NOTE: To prevent the trolley from hitting the cover

protection bolt, keep a minimum distance of 2-4"

(5-10 cm) between the trolley and the bolt.

ADJUSTMENT LABEL

• If door does not open at least 5 feet (1.5 m):

Adjust the UP (open) force as explained in

Adjustment Step 2.

• If the door reverses when closing and there is

no visible interference to travel cycle:

• If the door does not close completely:

Increase down travel. Turn the down limit

adjustment screw counterclockwise. One turn

equals 3" (7.5 cm) of travel.

If the opener lights are flashing, the Safety

Reversing Sensors are either not installed,

misaligned, or obstructed. See Troubleshooting,

page 17.

If door still won't close completely and the trolley

bumps into the pulley bracket (page 4), try

lengthening the door arm (page 19) and

decreasing the down limit.

Test the door for binding: Pull the emergency

release handle. Manually open and close the door.

If the door is binding or unbalanced, call for a

trained door systems technician. If the door is

balanced and not binding, adjust the DOWN

(close) force. See Adjustment Step 2.

• If the opener reverses in fully closed position:

Decrease down travel. Turn the down limit

adjustment screw clockwise. One turn equals 3"

(7.5 cm) of travel.

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ADJUSTMENT STEP 2

WARNING

Adjust the Force

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

Force adjustment controls are located on the right

side panel of the motor unit. Force adjustment

settings regulate the amount of power required to

open and close the door.

• Too much force on garage door will interfere with

proper operation of safety reversal system.

• NEVER increase force beyond minimum amount

required to close garage door.

• NEVER use force adjustments to compensate for a

binding or sticking garage door.

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" high (3.8 cm) object (or 2x4 laid

flat) on floor.

If the forces are set too light, door travel may be

interrupted by nuisance reversals in the down

direction and stops in the up direction. Weather

conditions can affect the door movement, so

occasional adjustment may be needed.

The maximum force adjustment range is about

3/4 of a complete turn. Do not force controls

beyond that point. Turn force adjustment controls

with a screwdriver.

NOTE: If anything interferes with the door’s upward

travel, it will stop. If anything interferes with the

door’s downward travel (including binding or

unbalanced doors), it will reverse.

HOW AND WHEN TO ADJUST THE FORCES

1. Test the DOWN (close) force

Force Adjustment Controls

• Grasp the door bottom when the door is about

halfway through DOWN (close) travel. The door

should reverse. Reversal halfway through down

travel does not guarantee reversal on a one-inch

(3.8 cm) obstruction. See Adjustment Step 3,

page 22. If the door is hard to hold or doesn't

reverse, DECREASE the DOWN (close) force by

turning the control counterclockwise. Make small

adjustments until the door reverses normally. After

each adjustment, run the opener through a

complete cycle.

Right Panel

• 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 small adjustments until the

door completes a close cycle. After each

Antenna

adjustment, run the opener through a complete

travel cycle. Do not increase the force beyond the

minimum amount required to close the door.

FORCE ADJUSTMENT LABEL

2. Test the UP (open) force

• Grasp the door bottom when the door is about

halfway through UP (open) travel. The door should

stop. If the door is hard to hold or doesn't stop,

DECREASE UP (open) force by turning the control

counterclockwise. Make small adjustments until the

door stops easily and opens fully. After each

adjustment, run the opener through a complete

travel cycle.

Open Force

Close Force

• If the door doesn’t open at least 5 feet (1.5 m),

INCREASE UP (open) force by turning the control

clockwise. Make small adjustments until door

opens completely. Readjust the UP limit if

necessary. After each adjustment, run the opener

through a complete travel cycle.

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ADJUSTMENT STEP 3

WARNING

Test the Safety Reversal System

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

TEST

• With the door fully open, place a 1-1/2" (3.8 cm)

board (or a 2x4 laid flat) on the floor, centered

under the garage door.

• Safety reversal system MUST be tested every month.

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" high (3.8 cm) object (or 2x4 laid

flat) on the floor.

• Operate the door in the down direction. The door

must reverse on striking the obstruction.

ADJUST

• If the door stops on the obstruction, it is not

traveling far enough in the down direction.

Increase the DOWN limit by turning the DOWN

limit adjustment screw counterclockwise 1/4 turn.

NOTE: 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 21.

• Repeat the test.

• When the door reverses on the 1-1/2" (3.8 cm)

board, remove the obstruction and run the opener

through 3 or 4 complete travel cycles to test

adjustment.

• If the unit continues to fail the Safety Reverse Test,

call for a trained door systems technician.

IMPORTANT SAFETY CHECK:

Test the Safety Reverse System after:

• Each adjustment of door arm length, limits, or

force controls.

1-1/2" (3.8 cm) board

(or a 2x4 laid flat)

• 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

Without a properly installed safety reversing sensor,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

ADJUSTMENT STEP 4

Test The Protector System

• Press the remote control push button to open the

door.

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

• Press the remote control push button to close the

door. The door will not move more than an inch

(2.5 cm), and the opener lights 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).

If the opener closes the door when the safety

reversing sensor is obstructed (and the sensors

are no more than 6" (15 cm) above the floor), call

for a trained door systems technician.

Safety Reversing Sensor

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OPERATION

IMPORTANT SAFETY INSTRUCTIONS

WARNING

To reduce the risk of SEVERE INJURY or DEATH:

1. READ AND FOLLOW ALL WARNINGS AND

8. NEVER use handle to pull garage door open or closed.

INSTRUCTIONS.

If rope knot becomes untied, you could fall.

2. ALWAYS keep remote controls out of reach of children.

NEVER permit children to operate or play with garage

door control push buttons or remote controls.

3. ONLY activate garage door when it can be seen clearly, it

is properly adjusted, and there are no obstructions to

door travel.

4. ALWAYS keep garage door in sight until completely

closed. NO ONE SHOULD CROSS THE PATH OF THE

MOVING DOOR.

9. If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

10. After ANY adjustments are made, the safety reversal

system MUST be tested.

11. Safety reversal system MUST be tested every month.

Garage door MUST reverse on contact with 1-1/2"

(3.8 cm) high object (or a 2x4 laid flat) on the floor.

12. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED

(see page 3). An improperly balanced door may not

reverse when required and could result in SEVERE

INJURY or DEATH.

5. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY

OPEN DOOR.

6. If possible, use emergency release handle to disengage

trolley ONLY when garage door is CLOSED. Weak or

broken springs or unbalanced door could result in an

open door falling rapidly and/or unexpectedly.

13. All repairs to cables, spring assemblies and other

hardware, all of which are under EXTREME tension,

MUST be made by a trained door systems technician.

14. ALWAYS disconnect electric power to garage door

opener BEFORE making any repairs or removing

covers.

7. NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

15.

SAVE THESE INSTRUCTIONS.

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

Using Your Garage Door Opener

7. If fully open, the door will not close when the beam

is broken. The sensor has no effect in the opening

cycle.

Your Security✚^®opener and hand-held remote

control have been factory-set to a matching code

which changes with each use, randomly accessing

over 100 billion new codes. Your opener will operate

with up to eight Security✚^®remote controls and one

Security✚^®Keyless Entry System. If you purchase a

new remote, or if you wish to deactivate any remote,

follow the instructions in the Programming section.

If the sensor is not installed, or is misaligned, the

door won’t close from a hand-held remote. However,

you can close the door with the Door Control, the

Outside Keylock, or Keyless Entry, if you activate

them until down travel is complete. If you release

them too soon, the door will reverse.

Activate your opener with any of the following:

• The hand-held Remote Control: Hold the large

push button down until the door starts to move.

The opener lights will turn on under the following

conditions: when the opener is initially plugged in;

when power is restored after interruption; when the

opener is activated.

• The wall-mounted Door Control: Hold the push

button or bar down until the door starts to move.

They will turn off automatically after 4-1/2 minutes or

provide constant light when the Light feature on the

Motion Detecting Door Control is activated. Bulb size

is 100 watts maximum.

• The Keyless Entry (See Accessories): If provided

with your garage door opener, it must be

programmed before use. See Programming.

Security✚^®light feature: Lights will also turn on

when someone walks through the open garage door.

With a Multi-Function Door Control, this feature may

be turned off as follows: With the opener lights off,

press and hold the light button for 10 seconds, until

the light goes on, then off again. To restore this

feature, start with the opener lights on, then press

and hold the light button for 10 seconds until the light

goes off, then on again.

When the opener is activated (with the safety

reversing sensor correctly installed and aligned):

1. If open, the door will close. If closed, it will open.

2. If closing, the door will reverse.

3. If opening, the door will stop.

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

position, it will close.

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

the obstruction interrupts the sensor beam, the

opener lights will blink for five seconds.

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Additional feature when used with the 3-button

hand-held remote

To control the opener lights:

Using the Wall-Mounted

Door Control

THE MOTION DETECTING DOOR

CONTROL

In addition to operating the door, you

may program the remote to operate the

lights.

Push

Bar

Press the push bar to open or

close the door. Press again to

reverse the door during the

closing cycle or to stop the door

while it's opening.

1. With the door closed, press and hold a small

remote button that you want to control the light.

2. Press and hold the Light button on the door

control.

Detector

Switch

This door control contains a

motion detector that will

automatically turn on the light

when it detects a person entering

3. While holding the Light button, press and hold the

Lock button on the door control.

Lock

Button

Light

Button

4. After the opener lights flash, release all buttons.

the garage. This feature can be easily turned off for

extended work light use.

To Open the Door Manually

Light feature

Press the Light button to turn the opener light on or

off. It will not control the opener lights when the door

is in motion. If you turn it on and then activate the

opener, the light will remain on for 4-1/2 minutes.

Press again to turn it off sooner. The 4-1/2 minute

interval can be changed to 1-1/2, 2-1/2, or 3-1/2

minutes as follows: Press and hold the Lock button

until the light blinks (about 10 seconds). A single blink

indicates that the timer is reset to 1-1/2 minutes.

Repeat the procedure and the light will blink twice,

resetting the timer to 2-1/2 minutes. Repeat again for

a 3-1/2 minute interval, etc., up to a maximum of four

blinks and 4-1/2 minutes.

WARNING

To prevent possible SERIOUS INJURY or DEATH from a

falling garage door:

• If possible, use emergency release handle to

disengage trolley ONLY when garage door is CLOSED.

Weak or broken springs or unbalanced door could

result in an open door falling rapidly and/or

unexpectedly.

• NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

• NEVER use handle to pull door open or closed. If

rope knot becomes untied, you could fall.

When using the opener lights as working lights, we

recommend that you first disable the motion sensor

See Automatic Light Feature, following.

The door should be fully

closed if possible. Pull down

on the emergency release

Automatic Light Feature: The opener light will

turn on automatically when a person enters the

garage. When a person walks in front of the door

control, the light will come on for five minutes, then

shut off. This feature works by detecting body heat

and may not work in temperatures around 100ûF.

Trolley

handle and lift the door

Release

Emergency

Release

Arm

manually. To reconnect the

door to the opener, press the

door control push bar.

Handle

(Pull Down)

To disable this feature, slide the Detector Switch on

the right side of the door control down (off).

MANUAL DISCONNECT

POSITION

The lockout feature prevents

the trolley from reconnecting

automatically. Pull the

emergency 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

We recommend that you disable the motion sensor

when using the opener lights as working lights.

Otherwise, they will turn off automatically if you are

working beyond the sensor’s range.

Trolley

Release

Arm

Lock feature

Designed to prevent operation of the door from

hand-held remote controls. However, the door will

open and close from the Door Control, the Outside

Keylock and the Keyless Entry Accessories.

Emergency

Release Handle

(Down and Back)

LOCKOUT POSITION

handle straight down. The

trolley will reconnect on the

next UP or DOWN operation,

either manually or by using the

door control or remote.

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. The

Lock feature will also turn off whenever the “Learn”

button on the motor unit panel is activated.

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THE REMOTE CONTROL BATTERY

CARE OF YOUR OPENER

LIMIT AND FORCE ADJUSTMENTS:

WARNING

Weather conditions may cause

FORCE CONTROLS

some minor changes in door

operation requiring some re-

adjustments, particularly during

the first year of operation.

To prevent possible SERIOUS INJURY or DEATH:

• NEVER allow small children near batteries.

• If battery is swallowed, immediately notify doctor.

Pages 20 and 21 refer to the limit

and force adjustments. Only a

screwdriver is required. Follow the

instructions carefully.

The lithium battery should

produce power for up to

LIMIT CONTROLS

Battery

5 years. To replace battery,

use the visor clip or

screwdriver blade to pry

open the case as shown.

Insert battery positive side

up (+).

positive

side up (+)

Repeat the safety reverse test

(Adjustment Step 3, page 22)

after any adjustment of limits or force.

MAINTENANCE SCHEDULE

Once a Month

Dispose of old battery properly.

• Manually operate door. If it is unbalanced or

binding, call a trained door systems technician.

NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or

modifications of this receiver and/or transmitter are prohibited, except for changing the

code setting or replacing the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.

Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to

the following two conditions: (1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may

cause undesired operation.

• Check to be sure door opens and closes fully.

Adjust limits and/or force if necessary. (See pages

20 and 21.)

• Repeat the safety reverse test. Make any

necessary adjustments. (See Adjustment Step 3.)

Twice a Year

• Check chain tension. Disconnect trolley first. Adjust

if necessary (See page 7).

Once a Year

• Oil door rollers, bearings and hinges. The opener

does not require additional lubrication. Do not

grease the door tracks.

Having a Problem?

3. The door operates from the Door Control, but

not from the remote control:

1. The opener doesn't operate from either the

Door Control or the remote control:

• Is the door push bar flashing? If your model has

the Lock feature, make sure it is off.

• 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.)

• Program the opener to match the remote control

code. (Refer to instructions on the motor unit

panel.) Repeat with all remotes.

• Have you disabled all door locks? Review

installation instruction warnings on page 7.

4. The remote control has short range:

• Change the location of the remote control in your

car.

• Is there a build-up of ice or snow under the door?

The door may be frozen to the ground. Remove

any restriction.

• Check to be sure the antenna on the side or back

panel of motor unit extends fully downward.

• The garage door spring may be broken. Have it

replaced.

• Some installations may have shorter range due to

a metal door, foil backed insulation, or metal

garage siding.

• Repeated operation may have tripped the overload

protector in the motor. Wait 15 minutes and try

again.

5. Opener noise is disturbing in living quarters of

home:

2. Opener operates from the remote, but not from

the Door Control:

• If operational noise is a problem because of

proximity of the opener to the living quarters, the

Vibration Isolator Kit 89LM can be installed. This kit

was designed to minimize vibration to the house

and is easy to install.

• Is the door control lit? If not, reverse the wires. If

the opener runs, check for a faulty wire connection

at the door control, a short under the staples, or a

broken wire.

• Are the wiring connections correct? Review

Installation Step 6, page 12.

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Having a Problem? (Continued)

6. The garage door opens and closes by itself:

11. The door reverses for no apparent reason and

opener lights blink for 5 seconds after

reversing:

• Be sure that all remote control push buttons are

off.

• Check the safety reversing sensor. Remove any

obstruction or align the receiving eye. See

Installation Step 10.

• Remove the bell wire from the door control

terminals and operate from the remote only. If this

solves the problem, the door control is faulty

(replace), or there is an intermittent short on the

wire between the door control and the motor unit.

12. The opener lights don't turn on:

• Replace the light bulbs (100 watts maximum). Use

a standard neck garage door opener bulb if regular

bulb burns out.

• Clear memory and re-program all remote controls.

7. The door doesn't open completely:

13. The opener lights don't turn off:

• Is the Light feature on? Turn it off.

• Is something obstructing the door? Is it out of

balance, or are the springs broken? Remove the

obstruction or repair the door.

14. The opener strains or maximum force is

needed to operate door:

• If the door is in good working order but now

doesn't open all the way, increase the up force.

See Adjustment Step 2.

• The door may be out of balance or the springs

may be broken. Close the door and use the

emergency release handle 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

trained door systems technician. Do not increase

the force to operate the opener.

• If the door opens at least 5 feet, the travel limits

may need to be increased. One turn equals 3"

(7.5 cm) of travel. See Adjustment Step 1.

Repeat the safety reverse test after the adjustment is

complete.

8. The door stops but doesn't close completely:

• Review the travel limits adjustment procedures on

page 20.

15. The opener motor hums briefly, then won't

work:

Repeat the safety reverse test after any adjustment

of door arm length, close force or down limit.

• The garage door springs may be broken. See

above.

9. The door opens but won't close:

• If the opener lights blink, check the safety

reversing sensor. See Installation Step 10.

• If the problem occurs on the first operation of the

opener, door may be locked. Disable the door lock.

Repeat the safety reverse test after the adjustment is

complete.

• If the opener lights don’t blink and it is a new

installation, check the down force. See Adjustment

Step 2. For an existing installation, see below.

16. The opener won't operate due to power

failure:

Repeat the safety reverse test after the adjustment

is complete.

• Use the emergency release handle to disconnect

the trolley. The door can be opened and closed

manually. When power is restored, press the Door

Control push bar and trolley will automatically

reconnect (unless trolley is in lockout position.)

See page 24.

10. The door reverses for no apparent reason and

opener lights don’t blink:

• Is something obstructing the door? Pull the

emergency release handle. Operate the door

manually. If it is unbalanced or binding, call a

trained door systems technician.

• 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.

• Clear any ice or snow from the garage floor area

where the door closes.

• Review Adjustment Step 2.

• If door reverses in the fully closed position,

decrease the travel limits (Adjustment Step 1).

17. The chain droops or sags:

• It is normal for the chain to droop slightly in the

closed door position. Use the emergency release

rope and handle to disconnect the trolley. If the

chain returns to the normal height when the trolley

is disengaged, and the door reverses on a 2x4 laid

flat, no adjustments are needed. (See page 7.)

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.

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PROGRAMMING

NOTICE: If this Security✚^®garage door opener is operated with a non-rolling code transmitter, the technical

measure in the receiver of the garage door opener, which provides security against code-theft devices, will be

circumvented. The owner of the copyright in the garage door opener does not authorize the purchaser or

supplier of the non-rolling code transmitter to circumvent that technical measure.

Your garage door opener has already been programmed at the factory to operate with your hand-held remote

control. The door will open and close when you press the large push button.

Below are instructions for programming your opener to operate with additional Security✚^®remote controls.

To Add or Reprogram a Hand-held Remote Control

USING THE “LEARN” BUTTON

USING THE MOTION DETECTING DOOR CONTROL

LOCK

LIGHT

LOCK

LIGHT

1. Press and hold the button on the

hand-held remote* that you wish

to operate your garage door.

1. Press and release the “learn”

button on the motor unit. The

learn indicator light will glow

steadily for 30 seconds.

2. While holding the remote button,

press and hold the LIGHT button

on the Motion Detecting Door

2. Within 30 seconds, press and

hold the button on the hand-held

remote* that you wish to operate

your garage door.

LOCK

Control.

LIGHT

3. Continue holding both buttons

while you press the push bar on

the Motion Detecting Door Control

(all three buttons are held).

LOCK

LIGHT

3. Release the button when the

motor unit lights blink. It has

learned the code. If light bulbs are

not installed, two clicks will be

heard.

4. Release buttons when the motor

unit lights blink. It has learned the

code. If light bulbs are not

installed, two clicks will be heard.

To Erase All Codes From Motor

Unit Memory

*3-Button Remotes

If provided with your garage door opener, the large

button is factory programmed to operate it. Additional

buttons on any Security✚^®

3-Button remote or

To deactivate any unwanted remote,

first erase all codes:

Press and hold the “learn” button on

compact remote can be

programmed to operate

motor unit until the learn indicator light

goes out (approximately 6 seconds). All

previous codes are now erased. Reprogram each

remote or keyless entry you wish to use.

other Security✚^®

garage door openers.

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To Add, Reprogram or Change a Keyless Entry PIN

NOTE: Your new Keyless Entry must be programmed to operate your garage door opener.

USING THE “LEARN” BUTTON

USING THE MOTION DETECTING DOOR CONTROL

LOCK

LIGHT

NOTE: This method requires two people if the

Keyless Entry is already mounted outside the

garage.

1. Press and release the “learn”

button on motor unit. The learn

indicator light will glow steadily for

30 seconds.

1. Enter a four digit personal

identification number (PIN) of your

choice on the keypad. Then press

and hold ENTER.

2. Within 30 seconds, enter a four

digit personal identification

number (PIN) of your choice on

the keypad. Then press and hold

the ENTER button.

2. While holding the ENTER button,

press and hold the LIGHT button

on the Motion Detecting Door

Control.

LOCK

LIGHT

3. Release the button when the

motor unit lights blink. It has

learned the code. If light bulbs are

not installed, two clicks will be

heard.

3. Continue holding the ENTER and

LIGHT buttons while you press

the push bar on the Motion

Detecting Door Control (all three

buttons are held).

LOCK

LIGHT

To change an existing, known PIN

If the existing PIN is known, it may be changed by one

person without using a ladder.

4. Release buttons when the motor

unit lights blink. It has learned the

code. If light bulbs are not

1. Press the four buttons for the present PIN, then

press and hold the # button.

installed, two clicks will be heard.

The opener light will blink twice. Release the #

button.

2. Press the new 4-digit PIN you have chosen, then

press Enter.

2. Press the temporary 4-digit PIN you have chosen,

then press Enter.

The motor unit lights will blink once when the PIN has

been learned.

The opener light will blink four times.

3. To set the number of hours this temporary PIN will

work, press the number of hours (up to 255), then

press ✽.

Test by pressing the new PIN, then press Enter. The

door should move.

To set a temporary PIN

You may authorize access by visitors or service people

with a temporary 4-digit PIN. After a programmed

number of hours or number of accesses, this temporary

PIN expires and will no longer open the door. It can be

used to close the door even after it has expired. To set

a temporary PIN:

3. To set the number of times this temporary PIN will

work, press the number of times (up to 255), then

press #.

The opener light will blink once when the temporary PIN

has been learned.

Test by pressing the four buttons for the temporary PIN,

then press Enter. The door should move. If the

temporary PIN was set to a certain number of openings,

remember that the test has used up one opening.To

clear the temporary password, repeat steps 1-3, setting

the number of hours or times to 0 in step 3.

1. Press the four buttons for your personal entry PIN

(not the last temporary PIN), then press and hold the

✽ button.

The opener light will blink three times. Release the

button.

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REPAIR PARTS

Rail Assembly Parts

KEY

NO.

PART

NO.

DESCRIPTION

4A1008

Master link kit

41A2780

41A3489

3707CH

3708CH

3710CH

41D3484

41D3483

41D3485

83A11-2

Chain pulley bracket

Complete trolley assembly

7' (2.1 m) Rail assembly

8' (2.4 m) Rail assembly

10' (3 m) Rail assembly

7' (2.1 m) Chain assembly

8' (2.4 m) Chain assembly

10' (3 m) Chain assembly

Rail grease

Installation Parts

KEY PART

NO. NO.

DESCRIPTION

LIG

41A5276-24 Motion detecting door control panel

973LM

10A20

3-button remote control

3V2032 Lithium battery

Remote control visor clip

29B137

41A2828

Emergency release rope &

handle assy.

41B4494-1

41A5047

41A4353

41A5034

2-Conductor bell wire, white & white/red

Door bracket w/clevis pin & fastener

Header bracket w/clevis pin & fastener

Safety sensor kit (receiving and

sending eyes) with 3' (.9 m)

2-conductor bell wire

178B34

Straight door arm section

Curved door arm section

Safety sensor brackets (2)

Extension Brackets (2)

NOT SHOWN

178B35

41A5266-1

41A5281

41A2770-8

114A2677

Installation hardware bag

(includes hardware listed on page 5).

Owner's manual

114A2677SP Owner’s manual - Spanish

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Motor Unit Assembly Parts

(Down)

Contact

LIMIT SWITCH ASSY.

Brown

Wire

N D N

Grey

Wire

P U P

Drive

Gear

Center Limit

Contact

(Up)

Contact

Yellow

Wire

KEY PART

NO.

KEY PART

NO. NO.

NO.

DESCRIPTION

41C5069

Chassis support bracket assy. kit

41D5563-1 Universal replacement motor &

bracket assembly

41A4208-2 Chain spreader

Complete with: Motor, worm,

bracket, gear case, bearing

assembly, RPM sensor

41A5658

41A2817

Gear and sprocket assembly

Complete with: Spring washer,

thrust washer, retaining ring,

bearing plate, roll pins (2), drive

gear and worm gear, helical gear

w/retainer and grease

41A5633

41A5532

Cover

Gear case

41A2822-1 Interrupter cup assembly

41C4398A RPM sensor assembly

Drive/worm gear kit w/grease,

roll pins (2)

41A5635

Receiver logic board assy.

Complete with: Logic board, end

panel w/all labels, light socket

41B4245-1 Line cord

41A5484

4A1344

End panels w/all labels

Light socket

41C5657

41C5587

High voltage wire harness assy.

Low voltage wire harness assy.

108D68-1

30B530

Lens

41D180-1

End panel w/all labels

Capacitor 56uF

Capacitor 40uF

Resistor

30B529

NOT SHOWN

Motor shaft bearing kit

Opener assembly hardware kit

(includes screws not designated

by a number in illustration)

41A2826

41A2825

41A5637

41A3150

81C253

41A5640

Terminal block w/screws

Limit switch drive & retainer

Limit switch assembly

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ACCESSORIES

1702LM

Outside Quick Release:

995LM

Remote Light Control:

Required for a garage with NO access

door. Enables homeowner to open

garage door manually from outside by

disengaging trolley.

Enables homeowner to turn on a lamp,

television or other appliance from their

car with their garage door opener remote

or from anywhere in their home with an

additional Liftmaster Security✚^®remote.

3707CH

7 Foot (2.1 m) Complete Rail:

971LM

Single-Button Security✚^®Remote

Control:

To allow a 7 foot (2.1 m) door to open

fully.

Includes visor clip.

2-Button Security✚^®Remote Control:

3708CH

3710CH

8 Foot (2.4 m) Complete Rail:

972LM

973W

To allow an 8 foot (2.4 m) door to open

fully.

Includes visor clip.

10 Foot (3 m) Complete Rail:

Designer Burled Walnut 3-Button

Remote Control with Security✚^®:

To allow a 10 foot (3 m) door to open

fully.

Includes visor clip.

78LM

Multi-Function Door Control Panel:

974LM

4-Button Security✚^®Remote Control:

Provides a lock feature which prevents

operation of garage door opener from

portable remotes and a light feature for

constant light.

Includes visor clip.

LOCK

LIGHT

3-Button Mini-Remote Control with

Security✚^®:

2 & 3 Door Multi-Function Wall

Control:

902LM/903LM

970LM

915LM

With key ring and fastening strip.

Ideal for homes with up to three garage

doors. Combine up to three controls

into one wall control panel for a neat

compact appearance. Enhanced

functions include Lock Feature to lock

out outside radio signals while you are

away from home and turn opener lights

on or off from the control panel.

Garage Door Monitor:

Security for the largest door of your

home!

Tells you if your garage door is open or

closed. Monitors up to 4 garage doors by

adding additional sensor modules.

CLOSED

OPEN

Wireless Keyless Entry with

Security✚^®:

976LM

Enables homeowner to operate

garage door opener from outside by

entering a password on a specially

designed keyboard. Also can add a

temporary password for visitors or

service persons. This temporary

password can be limited to a

programmable number of hours or

entries.

Garage Door Monitor Sensor:

916LM

Additional accessory sensor for homes

with multiple garage doors.

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LIFTMASTER SERVICE IS

ON CALL

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.

OUR LARGE SERVICE ORGANIZATION

SPANS AMERICA

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE

THE FOLLOWING INFORMATION:

INSTALLATION AND SERVICE INFORMATION IS AS

NEAR AS YOUR TELEPHONE SEVEN DAYS A WEEK.

SIMPLY DIAL OUR TOLL FREE NUMBER:

• PART NUMBER

• PART NAME

1-800-528-2817

• MODEL NUMBER

HOURS: (Central Std. Time)

6:00 A.M. TO 7:00 P.M. - Monday through Friday

8:00 A.M. TO 6:00 P.M. - Saturday

ADDRESS ORDERS TO:

THE CHAMBERLAIN GROUP, INC.

Technical Support Group

8:00 A.M. TO 4:30 P.M. - Sunday

6020 S. Country Club Road

Tucson, Arizona 85706

www.liftmaster.com

For professional installation, parts and service,

contact your local LIFTMASTER/CHAMBERLAIN

dealer. Look for him in the Yellow Pages, or call our

Service number for a list of dealers in your area.

SERVICE INFORMATION

TOLL FREE NUMBER:

1-800-528-2817

LIFTMASTER FIVE-YEAR LIMITED WARRANTY

LIFETIME MOTOR LIMITED WARRANTY

The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this

product is originally installed, that it is free from defect in materials and/or workmanship for a period of five years from the date

of purchase and that the motor is free from defect in materials and/or workmanship for the lifetime of the product. The proper

operation of this product is dependent on your compliance with the instructions regarding installation, operation, maintenance

and testing. Failure to comply strictly with those instructions will void this warranty in its entirety.

If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call

1-800-528-2817, toll free, before dismantling this product. Then send this product, pre-paid and insured, to our service center

for warranty repair. You will be advised of shipping instructions when you call. Please include a brief description of the problem

and a dated proof-of-purchase receipt with any product returned for warranty repair. Products returned to Seller for warranty

repair, which upon receipt by Seller are confirmed to be defective and covered by this limited warranty, will be repaired or

replaced (at Seller’s sole option) at no cost to you and returned pre-paid. Defective parts will be repaired or replaced with new

or factory-rebuilt parts at Seller’s sole option.

THIS LIMITED WARRANTY IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY

IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, AND OF

ANY OTHER OBLIGATIONS OR LIABILITY ON SELLER’S PART. THIS LIMITED WARRANTY DOES NOT COVER NON-

DEFECT DAMAGE, DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION OR CARE (INCLUDING, BUT NOT

LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE,

UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR REINSTALLING A

REPAIRED OR REPLACED UNIT, REPLACEMENT OF BATTERIES AND LIGHT BULBS OR UNITS INSTALLED FOR NON-

RESIDENTIAL USE.

THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR

GARAGE DOOR HARDWARE, INCLUDING BUT NOT LIMITED TO THE DOOR SPRINGS, DOOR ROLLERS, DOOR

ALIGNMENT OR HINGES. ANY SERVICE CALL THAT DETERMINES THE PROBLEM HAS BEEN CAUSED BY ANY OF

THESE ITEMS COULD RESULT IN A FEE TO YOU.

UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL

DAMAGES ARISING IN CONNECTION WITH USE, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL

SELLER’S LIABILITY FOR BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY

EXCEED THE COST OF THE PRODUCT COVERED HEREBY. NO PERSON IS AUTHORIZED TO ASSUME FOR US ANY

OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS PRODUCT.

Some states do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or

exclusion may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which

vary from state to state.

114A2677C

Printed in Mexico

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