Start by reviewing these important safety alert symbols
When you see these Safety Symbols on the following pages, they will alert you to the possibility of
serious injury or death
come from something mechanical or from electric shock.
When you see this Safety Symbol on the following pages, it will alert you to the possibility of damage
to your garage door and/or the garage door opener if you do not comply with the corresponding
instructions.
Read the instructions carefully.
if you do not comply with the corresponding instructions. The hazard may
Read the instructions carefully.
WARNING
MechanicalElectrical
WARNING
CAUTION
This garage door opener is designed and tested to offer safe service provided it is installed, operated,
maintained and tested in strict accordance with the safety instructions contained in this manual.
2
Page 3
You'll Need Tools
During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below.
Pencil
Carpenter's
Level
2
1
Tape Measure
Hack Saw
Wire Cutters
Drill
Stepladder
1/2" and 7/16" Sockets
and Wrench
WARNING
An unbalanced garage door might not reverse
when required and someone under the door
could be seriously injured or killed.
If your garage door binds, sticks or is out of
balance, call for professional garage door
service.
pulleys, brackets and their hardware are under
extreme tension and can cause serious injury
or death.
them yourself!
Ropes left on a garage door could cause
someone to become entangled and killed.
Remove all ropes connected to the door before
installing and operating the opener.
Identify the type and height of your door and any
special conditions that exist and any additional
materials that may be required.
Garage doors, door springs, cables,
Do not try to loosen, move or adjust
3/16", 5/16" and
5/32" Drill Bits
To avoid damage to the garage door and
opener, disable locks before installing and
operating the opener. Use a wood screw or nail
to hold locks in the "open" (unlocked)
position.
Operation at other than 120V 60 Hz will cause
opener malfunction and damage.
Before you begin, complete the following test to
make sure your door is balanced, and is not
sticking or binding:
• Lift the door about halfway as shown. Release the
door. It should stay in place, supported entirely by
its springs.
• Raise and lower the door to see if there is any
binding or sticking.
Screwdriver
Claw Hammer
Pliers
Adjustable End Wrench
CAUTION
SECTIONAL DOOR
ONE-PIECE DOOR
3
Page 4
SECTIONAL Door Installation
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with glass panels, etc.).
See page 24 for details.
Header Wall
— — — — — — — —
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 17.
Slack in belt tension
is normal when
garage door is closed.
Extension Spring
OR
Torsion Spring
Door Center
Floor must be level
Safety Reversing Sensor
across width of door
Based on your particular requirements, there are
several installation steps which might call for
materials and/or hardware not included in the
carton.
• Step 1, page 12 - Look at the wall or ceiling above
the garage door. The header bracket
must
be
securely fastened to structural supports.
• Step 5, page 17 - Do you have a finished ceiling in
your garage? If so, a support bracket and
additional fastening hardware may be required.
• Safety reversing sensor, page 21 - Depending
upon garage construction, wood blocks may need
to be fastened to mounting locations before
sensors are installed.
• Step 10, page 22 - Alternate floor mounting of the
safety reversing sensor will require hardware not
provided.
• Step 11, page 24 - Do you have a steel, aluminum,
fiberglass or glass panel door? If so, horizontal
and vertical reinforcement is required.
• Look at the garage door where it meets the floor.
It must close on the floor all the way across.
Otherwise, the safety reverse system may not
work properly. See page 30. Floor or door should
be repaired.
• If your door is more than 7 feet high, see longer
rails available on page 38.
Access Door
Safety
Reversing
Sensor
Closed Position
Belt
Manual
Release
Rope & Handle
Header
Wall
Garage
Door
Header
Bracket
Door Bracket
Belt Pulley
Bracket
Garage
Door
Spring
Trolley
Straight
Door
Arm
Curved
Door
Arm
• The opener can be installed within 2 feet of the left
or right of the door center if there is a torsion spring
or center bearing plate in the way of the header
bracket or door bracket area.
If your door has
extension springs, the opener must be installed
in the center of the door.
See pages 12 and 24.
• Do you have an access door in addition to the
garage door? If not, Model 7702CB Outside Quick
Release is required. See page 38.
You may find it helpful to refer back to this page
as you proceed with the installation of your
opener.
4
Page 5
ONE-PIECE Door Installation
One-Piece Door without Track
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
Slack in Belt Tension
is Normal When
Garage Door is Closed
Header
Wall
Access Door
Safety
Reversing
Safety
Reversing Sensor
Gap between floor and bottom
of door must not exceed 1/4".
Sensor
Based on your particular requirements, there are
several installation steps which might call for
materials and/or hardware not included in the
carton.
• Step 1, page 13 - Look at the wall or ceiling above
the garage door. The header bracket
must
be
securely fastened to structural supports.
• Step 5, page 17 - Do you have a finished ceiling in
your garage? If so, a support bracket and additional
fastening hardware (not supplied) may be required.
• Safety reversing sensor, page 21 - Depending on
garage construction, wood blocks may need to be
securely fastened to mounting locations before
sensors are installed.
• Step 10, page 22 - Alternate floor mounting of the
safety reversing sensor will require hardware that
is not provided.
• Step 11, page 25 - Generally, a one-piece door
does not require reinforcement. If your door is
lightweight, you can refer to the information
relating to sectional doors on page 24.
• Step 11, page 25 - Depending on your door's
construction, you might need additional mounting
hardware for the door bracket.
• Do you have an access door in addition to the
garage door? If not, Model 7702CB Outside Quick
Release is required. See page 38.
• The gap between the bottom of the garage
door and the floor cannot exceed 1/4".
Otherwise, the safety reverse system may not
work properly. See page 30. The floor or the door
should be repaired.
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 17.
Closed Position
Belt
T-rail
Straight
Door
Arm
Door
Curved
Door
Arm
Trolley
Manual
Release
Rope & Handle
Header
Wall
Belt
Pulley Bracket
Header
Bracket
Door
Bracket
Garage
One-Piece Door with Track
Slack in Belt Tension
is Normal When
Garage Door is Closed
Access
Door
Safety
Safety
Reversing
Sensor
Floor must be level
across width of door
Closed Position
Header
Wall
Garage
Door
Belt
Pulley Bracket
Header
Bracket
Door
Bracket
Belt
Curved
Door Arm
Straight
Door
Arm
You may find it helpful to refer back to this page
as you proceed with the installation of your
opener.
5
Reversing
Sensor
Trolley
Manual Release
Rope & Handle
T-rail
Page 6
Opener Carton Inventory
Your garage door opener is packaged in one carton which contains all parts illustrated below. If anything is
missing, carefully check the packing material. Parts may be "stuck" in the foam. Hardware for assembly and
installation is shown on page 7.
LOCK
LIGHT
Multi-Function
Remote Control Transmitter
Keyless Entry
Light Lens
Belt Pulley
Bracket
Trolley
T-rail
End Section (2)
2-Conductor Bell Wire
T-rail
Center Section
(each) (2)
White & White/Red
Rail Brace (3)
Door Control Panel
CEILING MOUNT ONLY
UP
Header Bracket
Multi-Function
Door Bracket
Door Bracket
Plate
Belt
Safety Reversing Sensor
Mounting Bracket
With Square Holes (2)
Safety Reversing Sensor
Mounting Bracket
With Slot (2)
Hanging Brackets
(1 Sending Eye and 1 Receiving Eye)
2-Conductor White & White/Black Bell Wire
Belt Cap Retainer
"C" Wrap (2)
(2) Safety Reversing Sensors
with
attached
6
Curved Door
Arm Section
Straight Door
Arm Section
Safety Labels
and
Literature
Page 7
Lock Washer
5/16" (4)
Nut 5/16"-18 (6)
Clevis Pin
5/16"x2-3/4" (1)
NOTICE
Handle
Insulated
Staples (10)
Assembly Hardware
Installation Hardware
Dry Wall Anchors (2)
Clevis Pin
5/16"x1" (1)
Hex Screw
5/16"-18x7/8" (4)
Rope
Trolley Clip (1)
Lock Nut
1/4"-20x7/16" (12)
Nut
5/16"-18 (4)
Washered Screw
5/16"-18x1/2" (2)
(mounted in opener)
Carriage Bolt
5/16"-18x2-1/2" (2)
Carriage Bolt
1/4"-20x1/2" (12)
Master Link (2)
Ring
Fastener (3)
Trolley
Threaded Shaft (1)
Screw
6ABx1" (2)
Lock Washer 5/16" (6)
Lag Screw
5/16"-9x1-5/8" (2)
Lock Nut
1/4"-20 (4)
Carriage Bolt
1/4"-20x1/2" (4)
Safety Reversing Sensor
Installation Hardware
Hex Screw
1/4-20x1-1/2" (2)
Screw
#10-32x3/8" (4)
Lock Nut
#10x32 (4)
Wing Nut (2)
Insulated
Staples (20)
RAIL GREASE
NO. 83A4
Rail Grease
Hex Screw
5/16"-18x7/8" (4)
Lag Screw
1/4x1-1/2" (4)
Spring Nut (1)
Lag Screw
5/16"-18x1-7/8" (2)
Clevis Pin
5/16"x1-1/4" (1)
Group all hardware found in all packages contained in the rail and opener cartons into
the three kits illustrated below.
7
Page 8
T-RAIL BACK
(TO OPENER)
T-RAIL FRONT
(TO DOOR)
Belt pulley bracket
attaches to FRONT
END of T-rail
T-rail
(End Section)
T-rail
(Center Section)
Carriage Bolt
1/4"-20x1/2"
T-rail
(End Section)
Square Carriage
Bolt Hole
1/4" Lock Nut
y
Bracket
Bracket & Rail Must Be Aligned
Lock Washer
5/16"
Nut
5/16"-18
Hex Screws
5/16"-18x7/8"
Belt Pulley
Bracket
Bracket & Rail Must Be Aligned
Lock Washer
5/16"
Nut
5/16"-18
Assembly Section: Pages 8 – 1 1
T o avoid installation difficulties, do not run the garage door opener until instructed to do so.
Assembly Step 1
Assemble the T-rail &
Attach the Belt Pulley Bracket
• Align the 4 T-rail sections on a flat surface
exactly as shown. Center sections are
interchangeable. Front and back sections are
also interchangeable for ease of assembly.
• Insert the carriage bolts so the square bolt
necks seat in the square holes in the T-rail
sections and pass through the round holes in
the rail braces. Assemble lock nuts, ensure
alignment and tighten.
If T-rail is not assembled
exactly as shown, trolley
will not travel smoothly
along length of rail or it
will hit against nuts.
Right
Wrong
Make sure bolt
necks are
seated in the
square holes
and rails are
aligned before
you tighten lock
nuts. (See right
and wrong
views).
Improper
assembly can
cause jerky
trolley
operation, noise
and/or nuisance
door reversals.
• Position the belt pulley bracket on the front end of
the T-rail as shown. Fasten securely with the
hardware shown.
Hardware Shown Actual Size
1/4"-20x7/16"
Hex Screw
5/16"-18x7/8"
Lock Nut
Carriage Bolt
Nut
5/16"-18
1/4"-20x1/2"
Lock Washer
5/16"
When tightening
the screws, be
sure to keep
bracket parallel
to the rail.
Otherwise, the
rail may bow
when the opener
Right
Wrong
is operated.
8
Page 9
Assembly Step 2
Temporary Stop
Screwdriver
Trolley
Hex Screws
# 8 x 3/8"
Hex Screw
5/16"-18x7/8"
Trolley
Stop Hole
Lock Washer
5/16"
Nut
5/16"-18
Install the Trolley on the T-rail
• As a temporary stop, insert a screwdriver into the
hole in the front end of the T-rail.
• Slide the trolley assembly along the rail to the
screwdriver stop.
If trolley hits against any nuts on the T-rail, the
bolts and nuts were attached from the wrong
side and must be repositioned. Review Step 1.
Assembly Step 3
Faster the T-rail to the Opener
• Place the opener on packing material to protect
the cover. For convenience, put a support under
the belt pulley bracket.
• Remove the (2) 5/16"-18x1/2" washered screws
mounted in the top of the opener.
• Align the holes in the back section of the T-rail with
the holes in the opener.
• Fasten the rail with the (2) washered screws
previously removed. Tighten securely.
Remember to use only these screws!
screws will cause serious damage to the opener.
• Insert a 5/16"-18x7/8" hex screw into the trolley
stop hole in the T-rail as shown. Tighten securely
with a 5/16" lock washer and nut. This screw limits
trolley travel in the UP direction.
Carriage Bolt
1/4"-20x1/2"
Nut
5/16"-18
Hex Screw
5/16"-18x7/8"
Lock Nut
Hardware Shown Actual Size
1/4"-20x7/16"
Any other
Lock Washer
5/16"
• Insert a 5/16"-18x7/8" hex screw into the trolley
stop hole in the T-rail as shown. Tighten securely
with a 5/16" lock washer and nut. This screw limits
trolley travel in the DOWN direction.
CAUTION
To fasten rail, use only those screws mounted
in the top of the opener. Any other screws will
cause serious damage to the opener.
Washered Screw
5/16"-18x1/2"
Hex Screw
5/16"-18x7/8"
Trolley
Stop Hole
T-Rail
(Back Section)
Lock Washer
5/16"
Nut
5/16"-18
9
USE ONLY THIS
TYPE AND SIZE
SCREW
Page 10
Assembly Step 4
Serious injury can result if fingers become
entangled in moving opener sprocket. Attach
belt cap retainer securely. Never operate
opener while your hand is near the opener
sprocket.
Nut
Ring
Trolley
Threaded
Shaft
Nut Ring
Slots
Trolley
Square End
Opener
Sprocket
Opener Sprocket
10
• Drop the notched side of the trolley clip into the
retaining slot on top of the trolley (see Figure 1).
• Grasp the clip connector at the end of
the belt and slip it through the belt
pulley bracket from behind, around
the pulley and toward the trolley.
• Fasten the belt clip connector to the
trolley clip with a master link:
a. Push pins of master link bar through holes in
trolley clip and belt clip connector.
b. Push master link cap over pins and
past pin notches.
c. Slide clip-on spring over cap and onto
pin notches until both pins are
securely locked in place.
• With the trolley against the screwdriver,
dispense the belt along the rail and around
the opener sprocket. The sprocket teeth
must engage the belt (Figure 2).
• Use the second master link to connect the belt to
the flat end of the trolley threaded shaft (Figure 1).
Check to make sure the belt is not twisted.
• Remove the screwdriver.
Belt
Pulley
Slip Belt Clip
Connector
through
Pulley Bracket
from this direction
and attach
to trolley clip
Trolley
Clip
Master Link
Clip-On Spring
Master
Link Cap
Trolley
Threaded Shaft
Master
Link Bar
Pin
Notch
Pin
Notch
Belt
Clip Connector
Figure 2
Figure 1
Figure 4
WARNING
WARNING
• Insert a screwdriver tip into one of the nut ring slots
and brace it firmly against the trolley. (Figure 4)
• Place a 7/16" open end wrench on the square end.
Rotate about 1/4 turn until the spring releases and
snaps the nut ring against the trolley (Figure 5).
This extends the spring for optimum belt tension.
• Insert the trolley threaded shaft through the hole in
the trolley.
• Hold the belt at the trolley shaft to avoid twisting
as you thread the spring/trolley nut by hand on the
shaft until finger tight against the trolley (Figure 3).
Do not use any tools.
Belt Clip
Connector
Belt Clip
Connector
Trolley
Threaded
Shaft
Spring
Trolley Nut
Trolley
Nut RingTrolley
Nut Ring
Trolley
1"1-1/4"
BEFOREAFTER RELEASE
Figure 5Figure 3
Install the Belt & Set the Belt Tension
Page 11
Assembly Step 5
Attach the Belt Cap Retainer
To attach the belt cap retainer:
• Position the belt cap retainer over the opener
sprocket so the two holes in cap align with the two
holes in mounting plate. Attach with 8x3/8" hex
screws provided.
Hex Screws
#8x3/8"
Belt Cap
Retainer
Opener Sprocket
Mounting Plate
Hardware Shown
Actual Size
Hex Screw
#8x3/8"
Belt
You have now finished assembling your garage door opener. Please read the following
warnings before proceeding to the installation section:
IMPORTANT INST ALLATION INSTRUCTIONS
WARNING
WARNING
To reduce the risk of severe injury or death to persons:
1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS.
2. Install only on a properly balanced and lubricated garage door.
may not reverse and could result in severe injury or death.
and other hardware must be made by a professional service person before installing opener.
3. Disable all locks and remove all ropes connected to the garage door before installing the opener.
Ropes connected to a garage door can cause entanglement and death.
4. If possible, install door opener 7 feet or more above floor with the manual release handle
mounted 6 feet above the floor.
5. Do not connect the opener to power source until instructed to do so.
6. Locate the Door Control within sight of the door at a minimum height of 5 feet where small
children cannot reach and away from all moving parts of the door.
7. Install the User Safety Instruction Label on the wall adjacent to the control button and the
Maintenance Instruction Label in a prominent location on the inside of the garage door.
8. Upon completion of the installation, the door must reverse when it comes in contact with a
one-inch high object (or a 2x4 laid flat) on the floor.
9. Do not wear watches, rings or loose clothing while installing or servicing an opener. Jewelry or
loose clothing can be caught in the mechanism of the garage door or the opener.
11
An improperly balanced door
Repairs to cables, spring assemblies
Page 12
Vertical
Guideline
Finished
Ceiling
Vertical
Guideline
Header
Wall
2x4
Structural
Supports
Installation Section: Pages 12 – 27
Installation Step 1
Determine Header Bracket Location
Installation procedures vary according to garage
door types. Follow the instructions which apply to
your door.
SECTIONAL Door and
ONE-PIECE Door With Track
WARNING
If the header bracket is not rigidly fastened to
a structural support on the header wall or
ceiling, the safety reverse system may not
work properly (see page 30).
not reverse when required, and could cause
serious injury or death.
The garage door springs, cables, pulleys,
brackets and their hardware are under extreme
tension.
Do not attempt to loosen, move or
adjust them yourself. Serious personal injury
or death could result.
garage door service.
• Close the door and mark the inside
vertical centerline of the garage door.
• Extend the line onto the header wall
above the door.
Remember, you can fasten the
header bracket within 2 feet to the
left or right of the door center
a torsion spring or center bearing
plate is in the way; or you can attach
it to the ceiling (refer to page 14)
when clearance is minimal. (It may
be mounted on the wall upside down
if necessary, to gain approximately
1/2".)
If you need to install the header bracket
on a 2x4 (on wall or ceiling), use lag
The door might
Call for professional
only
if
• Open your door to the highest
point of travel as shown. Draw
an intersecting horizontal line
on the header wall 2" above
the high point. This height will
provide travel clearance for the
top edge of the door.
Proceed to Step 2, page 14.
Door
Ceiling
Header
Wall
2"
Highest Point
of Travel
Sectional door
with curved track
12
Track
Header
Wall
2"
Highest Point
of Travel
Door
One-piece door
with horizontal track
Track
Page 13
ONE-PIECE Door Without Track
Read the Safety Instructions on page 12. They also apply to doors without tracks.
• Close the door and mark the
inside vertical centerline of
your garage door. Extend the
line onto the header wall
above door.
If headroom clearance is
minimal, you can install the
header bracket on the ceiling.
See page 14.
•
If you need to install the
header bracket on a 2x4 (on
wall or ceiling), use lag screws
(not supplied) to securely
fasten the 2x4 to structural
supports as shown.
Header Wall
Highest Point
of Travel
Header Wall
Vertical
Centerline
2x4
Vertical
Centerline of
Garage Door
Unfinished
Ceiling
2x4
OPTIONAL CEILING MOUNT
FOR HEADER BRACKET
Wall
Highest Point
of Travel
Header
Structural
Supports
Door
Jamb
Hardware
Distance
One-piece door without track
jamb hardware
• Open your door to the highest point of travel as
shown. Measure the distance from the top of the
door to the floor. Subtract the actual height of the
door. Add 8" to the remainder. (See Example.)
• Close the door and draw an intersecting horizontal
line on the header wall at the determined height.
If the total number of inches exceeds the height
available in your garage, use the maximum
height possible, or refer to page 14 for ceiling
installation.
Door
Distance
Pivot
One-piece door without track
pivot hardware
Example
Distance from top of door
(at highest point of travel) to floor...........................92"
Actual height of door.............................................-88"
Bracket height on header wall..............................=12"
(Measure UP from top of CLOSED door.)
Proceed to Step 2, page 14.
13
Page 14
Lag Screws
5/16"x9x1-5/8"
Highest
Point of Travel
(of Garage Door)
Vertical
Center
Line
Header
Wall
Garage
Door
UP
CEILING MOUNT ONLY
Wall
Mounting Holes
Optional
Wall Mounting
Holes
The nail hole is for positioning
only. You must use lag screws to
mount the header bracket.
UP
CEILING MOUNT ONLY
Door
Spring
Header
Bracket
2x4
Structural
Support
Vertical
Center
Line
• Center the bracket on the vertical guideline with
the bottom edge of the bracket on the horizontal
line as shown (with the arrow pointing toward the
ceiling).
• Mark either set of bracket holes (do not use the
holes designated for ceiling mount). Drill 3/16" pilot
holes and fasten the bracket securely to a structural
support with the hardware provided.
Fasten the Header Bracket to the Ceiling
Installation Step 2
Lag Screw
5/16"-9x1-5/8"
Hardware Shown Actual Size
Lag Screws
5/16"x9x1-5/8"
Highest
Point of Travel
(of Garage Door)
Vertical
Center
Line
Header
Wall
Garage
Door
UP
CEILING MOUNT ONLY
Wall
Mounting Holes
Optional
Wall Mounting
Holes
UP
CEILING MOUNT ONLY
Ceiling Mounting Holes
The nail hole is for positioning
only. You must use lag screws to
mount the header bracket.
The nail hole is for positioning only.
You must use lag screws to mount
the header bracket.
UP
CEILING MOUNT ONLY
Door
Spring
HeaderBracket
2x4
Structural
Support
Vertical
Center
Line
UP
Lag Screws
5/16"x9x1-5/8"
Garage
Door
Vertical
Center Line
Header
Wall
Finished
Ceiling
Header
Bracket
6" Maximum
Vertical
Center Line
Door
Spring
• Extend the vertical guideline onto the ceiling as
shown.
• Center the bracket on the vertical mark, no more
than 6" from the wall. Make sure the arrow is
pointing toward the wall. The bracket can be
mounted flush against the ceiling when clearance
is minimal.
• Mark holes designated for ceiling mount only. Drill
3/16" pilot holes and fasten bracket securely to a
structural support with the hardware provided.
Install the Header Bracket
You can attach the header bracket either to the
wall above the garage door, or to the ceiling.
Follow the instructions which will work best for
your particular requirements.
Fasten the Header Bracket to the Wall
14
Page 15
The Chamberlain Group, Inc.
k
Installation Step 3
Attach the T-rail to the Header Bracket
Header Wall
Header
Bracket
Belt Pulley
Bracket
T-rail
• Position the opener on the garage floor below the
header bracket. Use packing material as a
protective base.
If the door spring is in the way you'll need help.
Liftmaster Synchro DriveAttach Tee Rail to Header Brac5/16/92
Have someone hold the opener securely on a
temporary support to allow the T-rail to clear
the spring.
• Position the belt pulley bracket against the header
bracket.
• Align the bracket holes and join with a clevis pin
as shown.
• Insert a ring fastener to secure.
Ring Fastener
Header Bracket
Garage
Door
Clevis Pin
5/16"x2-3/4 "
INCREASE
DOWN
TRAVEL
INCREASE
TRAVEL
UP
Hardware Shown Actual Size
Belt Pulley
Bracket
T-rail
Temporary
Support
Clevis Pin
5/16"x2-3/4"
Ring Fastener
15
Page 16
Installation Step 4
Position the Opener
Follow instructions which apply to your door type
as illustrated.
SECTIONAL Door & ONE-PIECE Door with Track
A 2x4 laid flat is convenient for setting an ideal
door-to-T-rail distance.
• Raise the opener onto a stepladder.
You will need help at this point if the ladder is
not tall enough.
• Open the door all the way and place a 2x4 laid flat
on the top section beneath the T-rail.
If the top panel hits the trolley when you raise
the door, pull down on the trolley release arm to
disconnect the inner and outer sections. The
trolley can remain disconnected until Step 12 is
completed.
CAUTION
To prevent damage to steel, aluminum,
fiberglass or glass panel doors, do not rest the
opener on the door without using a 2x4.
T-rail
Door
2x4
Stepladder
Trolley
Release Arm
Trolley
ONE-PIECE Door without Track
• With the door fully open and parallel to the floor,
measure the distance from the floor to the top of
the door.
• Using a stepladder as a support, raise the opener
to the same distance as the door from the floor (it
will be at a slight angle as shown).
• The top of the door should be level with the top of
the opener. Do not position the opener more than
2" above this point.
Header
Bracket
Top of Opener
Top of Door
Stepladder
16
Page 17
Installation Step 5
Hang the Opener
Two representative installations are shown.
Yours may be different. Hanging brackets should
be angled, Figure 1, to provide rigid support. On
finished ceilings, Figure 2, attach a sturdy metal
bracket to structural supports before installing the
opener. The bracket and fastening hardware are not
supplied.
• Measure the distance from
to the structural support.
• Cut both pieces of the hanging bracket to required
lengths.
• Drill 3/16" pilot holes in the structural supports.
• Attach one end of each bracket to a support with
5/16"x1-7/8" lag screws.
• Fasten the opener to the hanging brackets with
5/16"-18x7/8" hex screws, lock washers and nuts.
• Check to make sure the T-rail is centered over the
door (or in line with the header bracket if the
bracket is not centered above the door).
• Remove the 2x4. Operate the door manually. If the
door hits the rail, raise the header bracket.
each
side of the opener
WARNING
The opener could fall and injure someone if it
is not properly secured.
securely to structural supports of the garage.
Figure 1
Measure
Distance
5/16"-18x7/8"
Hex Screws
5/16" Lock Washers
5/16"-18 Nuts
Fasten the opener
Structural
Supports
Lag Screws
5/16"x1-7/8"
Grease the top and
underside of the rail
surface where the
trolley slides with rail
grease.
Hardware Shown Actual Size
Lag Screw
5/16"-18x1-7/8"
RAIL GREASE
NO. 83A4
Figure 2
Bracket
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
— FINISHED CEILING —
Hidden
Support
Lag Screws
5/16"x1-7/8"
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
Hex Screw
5/16"-18x7/8"
Nut 5/16"-18
Lock Washer 5/16"
17
Page 18
Opener
Terminal Screws
Antenna
Right Panel
of Opener
Multi-Function
Door Control Panel
Multi-Function
Door Control Panel
Terminal Screws
RED
WHITE
LIGHT
LOCK
Door Control
Button
Light Button
Lock Button
KG
KG
1
3
9
7
5
1
3
9
7
5
23
1
1
2
Installation Step 6
18
Children operating or playing with a garage
door opener can injure themselves or others.
The garage door could close and cause
serious injury or death.
Install the door control
(or any additional push buttons) out of the
reach of children and away from all moving
parts of the door and door hardware,
but
where the garage door is visible.
Do not allow
children to operate the push button(s) or the
remote control transmitter(s).
A moving garage door could injure someone
under it.
Activate the opener only when the
door is properly adjusted, you can see it clearly,
and there are no obstructions to door travel.
• Strip 1/4" of insulation from one end of the bell
wire; connect the wire to the two screw terminals
on the back of the door control by color: white to 2
and white/red to 1.
• Locate the door control within sight of the door
at a minimum height of 5 feet where small
children cannot reach, and away from all
moving parts of the door and door hardware.
Fasten the Multi-Function Door Control securely
with 6ABx1" screws. If installing into drywall, drill
5/32" holes and use the anchors provided.
• Run the bell wire up the wall and across the ceiling
to the opener. Use insulated staples to secure the
wire in several places. Be careful not to pierce the
wire with a staple, thereby resulting in a short.
• Receiver terminal screws and the antenna are
located on the right panel of the opener. Position
the antenna wire as shown.
• Then connect the bell wire to the opener terminal
screws: white to 2 and white/red to 1.
• Remember to affix the User Safety Instruction
label to the wall near the door control, and the
Maintenance Instruction label in a prominent
location on the inside of the garage door.
If the label adhesive will not adhere to your garage
wall surface (or becomes lose with time) use tacks
to secure the label alongside the door control.
Page 32 explains how to operate the opener using
the lighted push button and the Lock & Light
features available on the Multi-Function Door
Control Panel.
Dry Wall Anchors
Insulated
Staples
6AB x 1" Screw
Multi-Function Door Control
Hardware Shown Actual Size
Outside Keylock Accessory Connections
To opener terminal screws: white to 2; white/red to 1
WARNING
WARNING
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 21.
Install the Multi-Function
Door Control Panel
Page 19
Installation Step 7
Install the Lights and the Lenses
• Install a 75 watt maximum light bulb in each
socket. The lights will turn ON and remain lit for
approximately 4-1/2 minutes when power is
connected. Then the lights will turn OFF.
• If the bulbs burn out prematurely due to vibration,
replace them with "Garage Door Opener" bulbs.
• Slide lenses into guides as shown. Snap bottom
tabs into lens slots.
• For convenience, the lenses may be installed
after Adjustment Step 4 on page 30.
• Reverse the procedure to remove the lenses.
Lens
Guide
75 Watt Max.
Light Bulb
Lens Tab
75 Watt Max.
Light Bulb
Lens Slot
Lens Tab
Installation Step 8
Attach the Manual Release
Rope and Handle
Trolley
Rope
NOTICE
Overhand
Knot
Trolley
Release Arm
Manual
Release Handle
Overhand
Knot
WARNING
Do not use the red handle to pull the door
open or closed.
untied and you could fall.
release only to disengage the trolley and, if
possible, only when the door is closed.
Garage doors are heavy. If the door is open
when the handle is pulled, the door could
close inadvertently if it is not properly
balanced. Serious injury may result to persons
under the door. Make sure the doorway is clear
of persons and obstructions before pulling
handle when door is open.
• Thread one end of the rope through the hole in the
top of the red handle so "NOTICE" reads right side
up as shown. Secure with an overhand knot.
The knot should be at least 1" from the end of the
rope to prevent slipping.
• Thread the other end of the rope through the hole in
the release arm of the outer trolley.
• Adjust rope length so the handle is 6 feet above the
floor. Secure with an overhand knot .
If it is necessary to cut the rope, heat seal the cut
end with a match or lighter to prevent unraveling.
The rope knot could become
Use the manual
19
Page 20
Installation Step 9
Electrical Requirements
To reduce the risk of electric shock, your garage
door opener has a grounding type plug with a third
grounding pin. This plug will
type outlet.
If the plug doesn't fit into the outlet you have,
contact a qualified electrician to install the proper
type outlet.
To avoid installation difficulties,
do not run the opener at this time.
only
fit into a grounding
WARNING
To prevent electrocution or fire,
and wiring must be in compliance with local
electrical and building codes.
Do
NOT
use an extension cord, 2-wire adapter,
or change the plug in anyway to make it fit
your outlet.
Right
Right
installation
Wrong
Wrong
If permanent wiring is required by your local code, refer to the following procedure:
WARNING
To prevent electrocution, remove power from
the garage door opener
you plan to use for the permanent connection.
• To make a permanent connection through the
7/8" diameter hole in the top of the opener
(according to local code):
• Remove the opener cover screws and set the
cover aside.
• Remove the attached 3-prong cord.
• Connect the black (line) wire to the screw on the
brass terminal; the white (neutral) wire to the
screw on the silver terminal; and the ground wire
to the green ground screw.
grounded.
• Reinstall the cover.
and
from the circuit
The opener must be
Ground Tab
Green Ground
Screw
Ground Wire
Permanent Wiring
Connection
Black
Wire
To avoid installation difficulties,
do not run the opener at this time.
20
White Wire
Black
Wire
Page 21
The Protector System
®
Information you'll need before you begin the installation of the safety reversing sensor.
The safety reversing sensor
must
be connected
and aligned correctly before the garage door
opener will move in the down direction. This is a
required safety device and cannot be disabled.
Installation procedures are the same for sectional
and one-piece doors.
Be sure power to the opener is disconnected.
The sending eye transmits an invisible light beam to
the receiving eye. The units can be installed on
either side of the garage door as long as the sun
never shines directly into the receiving eye lens.
Look at the label on the connector end of each case
to identify the sensors.
The brackets must be connected and fastened so
that the sending and receiving eyes face each other
as shown in Figure 1.
If an obstruction breaks the light beam while the
garage door is closing, the door will stop and
reverse to full open position, and the opener lights
will flash for 5 seconds.
WARNING
Without a properly working safety reversing
sensor, persons (particularly children) could
be injured or killed by a closing garage door.
Read and follow all instructions.
To protect small children, install the safety
reversing sensor so that the beam will be no
higher than 4"-6" above the garage floor.
Disconnect power to the garage door opener
before installing the safety reversing sensor.
The brackets
surface such as the studs on either side of the door,
or add a piece of wood at each location if installing in
masonry construction.
The invisible light beam path must be unobstructed.
No part of the garage door (or door tracks, springs,
hinges, rollers or other hardware) can interrupt the
beam while the door is closing. If it does, use a piece
of wood to build out each sensor mounting location to
the minimum depth required for light beam clearance.
must
be securely fastened to a solid
Sensor Beam
4-6" max.
above floor
Sensor Beam
4-6" max.
above floor
Invisible Light Beam
Protection Area
Figure 1: Facing the door from inside the garage
21
Page 22
Installation Step 10
Install the Safety Reversing Sensor
Figures 2 and 3 show assembly of brackets and
"C" wrap based on the recommended installation of
the sensors on each side of the garage door as
shown on page 21.
However, Figures 4 and 5 are variations which may
fit your installation requirements better. Make sure
the wraps and brackets are aligned so the
sensors will face each other across the garage
door.
• Fasten the "C" wraps to the mounting brackets
having square holes, using the hardware shown
in Figure 2.
• Connect each assembly to a slotted bracket, using
the hardware shown in Figure 3.
Note the alignment of the brackets for left and
right sides of the door.
• Finger tighten the lock nuts.
• Use bracket mounting holes as a template to locate
and drill (2) 3/16" diameter pilot holes on both sides
of the garage door, 4"-6" above the floor
exceeding 6"
. (See warning on page 21.)
but not
• Attach bracket assemblies with 1/4"x1-1/2" lag
screws as shown in Figure 3.
• Adjust right and left side bracket assemblies to the
same distance out from the mounting surface.
Make sure all door hardware obstructions are
cleared. Tighten the nuts securely.
Figure 2
#10-32
Lock Nuts
Figure 3
Inside
Garage
Wall
1/4"-20
Lock Nuts
Mounting Bracket
With Square Holes
1/4x1-1/2"
Lag Screws
Mounting Bracket
with Slot
Mounting Bracket
with Square Holes
"C" Wrap
#10-32x3/8"
Screws
1/4-20x1/2" Carriage Bolts
(with square shoulder)
"C" Wrap
#10-32x3/8"
Screw
Figure 4
#10x32
Lock Nut
Alternate Wall Mount
Inside
Garage
Wall
Mounting Bracket
with Slot
Garage
Floor
Hardware Shown Actual Size
Mounting Bracket
with Square Holes
"C" Wrap
Sensor
with wire
Indicator Light
1/4x1-1/2"
Lag Screw
Figure 5
Staples
Inside
Garage
"C" Wrap
1/4"-20x1/2"
Carriage Bolts
Alternate Floor Mount
Wall
Sensor with wire
Indicator Light
Garage
Floor
1/4"-20
Lock Nut
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Attach with
concrete anchors
(not provided)
22
Page 23
Invisible Light Beam
Protection Area
Sensor
Sensor
Connect Wire to
Opener Terminals
Bell Wire
Bell Wire
Finished
Ceiling
Figure 7
OPENER TERMINAL SCREWS
Sensor
Connections
Door Control
Connections
(dotted line)
1
23
• Center each sensor unit in a "C" wrap with lenses
1/4-20 x 1-1/2"
Hex Bolt
"C" Wrap
Sensor
with Wire
Wing
Nut
Indicator
Light
1/4-20x1-1/2"
Hex Bolt
Wing Nut
pointing toward each other across the door (see
Figure 6).
• Secure sensors with the hardware shown in
Figure 7. Finger tighten the wing nut on the
receiving eye
Securely tighten the
to allow for final adjustment.
sending eye
wing nut.
• Run the wires from both sensors to the opener.
Use insulated staples to secure the wire to the wall
and ceiling.
• Strip 1/4" of insulation from each set of wires.
Separate white and white/black wires sufficiently to
connect to the opener terminal screws: white to 2
and white/black to 3.
Aligning the Safety Sensors
• Plug in the opener. Green indicator lights in both
the sending and receiving eyes will
glow steadily
wiring connections and alignment are correct.
The
sending
eye indicator light will glow regardless
of alignment or obstruction. If the indicator light is
off, dim, or flickering in the
receiving eye
(and the
invisible light beam path is not obstructed),
alignment is required.
• Loosen the
sending
eye wing nut and re-adjust,
aiming directly at the receiving eye. Lock in place.
• Loosen the
receiving
eye wing nut and adjust
sensor vertically and/or horizontally until it receives
the sender’s beam. When the green indicator light
glows steadily,
tighten the wing nut.
Figure 6
Trouble Shooting
1.If the
if
2.If the sending eye indicator light
3.If the receiving eye indicator light is dim, realign
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 flash 10 times. (If bulbs are not
installed, 10 clicks are audible.) See page 21.
sending eye
steadily
after installation, check for:
indicator light does not
glow
• Electric power to the opener.
• A short in the white or white/black wires. These
can occur under staples or at screw terminal
connections.
• Incorrect wiring between sensors and opener.
• An open wire (wire break).
glows steadily
the receiving eye indicator light doesn't:
• Check alignment.
• Check for an open wire to the receiving eye.
either sensor.
but
Hardware Shown Actual Size
Figure 7
23
Page 24
Installation Step 11
Vertical
Guideline
Door
Bracket
Nut
5/16"-18
Carriage Bolt
5/16"-18x2-1/2"
Lock Washer
5/16"
Vertical
Guideline
Door
Bracket
Location
Header
Bracket
Door
Bracket
Door Bracket
Plate
Inside Edge
of Door or
Reinforcement Board
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, aluminum, steel,
doors with glass panel, etc).
Vertical
Reinforcement
CAUTION
Fasten Door Bracket
Follow instructions which apply to your door type
as illustrated below or on page 25.
A horizontal brace should be long enough to be secured to 2 vertical supports. A vertical brace should
cover the height of the top panel.
The illustration shows one piece of angle iron as the horizontal brace. For the vertical brace, 2 pieces of
angle iron are used to create a "U"-shaped support. The best solution is to check with your garage door
manufacturer for an opener installation door reinforcement kit.
To prevent damage to steel, aluminum,
fiberglass or glass panel doors, always
reinforce the inside of the door both vertically
and horizontally with an angle iron.
SECTIONAL Door Installation Procedure
Figure 1
• Center the door bracket on the previously marked
vertical guideline used for the header bracket
installation.
• Position the bracket on the face of the door within
the following limits:
A) The top edge of the bracket 2"-4" below the top
edge of the door.
B) The top edge of the bracket directly below any
structural support across the top of the door.
• Mark and drill 5/16" left and right fastening holes.
Secure the bracket as shown in Figure 1 if there is
vertical reinforcement.
If your installation doesn't require vertical reinforcement but does need top and bottom fastening holes
for the door bracket, position the door plate over the
door bracket as shown in Figure 2. Fasten securely
with hardware shown in Figure 1.
Hardware Shown Actual Size
Nut 5/16"-18
Carriage Bolt
5/16"-18x2-1/2"
Figure 2
Lock Washer 5/16"
24
Page 25
Door
Bracket
Top of Door
(Inside Garage)
Carriage Bolt
5/16"-18x2-1/2"
Optional
Placement
Lock Washer
5/16"
Nut
5/16"-18
Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fiberglass, aluminum, steel,
door with glass panel, etc.).
Header Wall
Vertical
Centerline of
Garage Door
– Finished Ceiling –
Optional
Placement
of Door
Bracket
Header
Bracket
Top Edge
of Door
2x4 Support
Door
Bracket
For a door with no
exposed framing or for
the optional installation,
use 5/16"x1-1/2" lag
screw (not supplied) to
fasten door bracket.
All ONE-PIECE Door Installation Procedure
Please read and comply with the warnings and reinforcement instructions on page 24.
They apply to one-piece doors also.
• Center the bracket on the top of the door, in line
with the header bracket as shown. Mark holes.
• Drill 5/16" pilot holes and fasten the door bracket
with hardware supplied.
If the door has no exposed framing, drill 3/16" pilot
holes and fasten the bracket with 5/16"x1-1/2" lag
screws (not supplied) to the top of the door.
The door bracket may be installed on the top
edge of the door if required for your installation.
(Refer to the dotted line optional placement
drawing.) Drill 3/16" pilot holes and substitute
5/16"x1-1/2" lag screws (not supplied) to fasten
the bracket to the door.
Hardware Shown Actual Size
Nut 5/16"-18
Lock Washer 5/16"
Carriage Bolt
5/16"-18x2-1/2"
25
Page 26
Installation Step 12
Connect Door Arm to Trolley
Follow instructions which apply to your door type
as illustrated below and on page 27.
SECTIONAL Doors Only
Make sure garage door is fully closed. Pull the manual release handle to disconnect the outer trolley
from the inner trolley. Slide the outer trolley back (away from the door) about 2” as shown in
Figures 1, 2 and 3.
Figure 1:
• Fasten straight door arm section to outer trolley
with a clevis pin. Secure the connection with a ring
fastener.
• Fasten curved section to the door bracket in the
same way as shown.
Inner Trolley
Outer Trolley
Clevis
Pin
Straight
Figure 1Figure 2
Clevis Pin
Ring
Fastener
Door
Bracket
Door Arm
Curved
Door Arm
Figure 2:
• Bring arm sections together. Find two pairs of holes
that line up and join sections. Select holes as far
apart as possible to increase door arm rigidity.
Lock
Washers
5/16"
Nuts
5/16"-18
Screws
5/16"-18x7/8"
Door Bracket
Rope
Manual
Release
Handle
Hole Alignment Alternative
Figure 3:
• If holes in curved arm are
above
holes in straight
arm, disconnect straight arm. Cut about 6" from
the solid end. Reconnect to trolley with
down
as shown.
cut end
• Bring arm sections together.
• Find two pairs of holes that line up and join with
screws, lock washers and nuts.
Hardware Shown Actual Size
Nut 5/16"-18
Lock Washer 5/16"
Ring Fastener
Nuts
5/16"-18
Lock
Washers
5/16"
Screws
5/16"-18x7/8"
Cut This End
Figure 3
Hex Screw
5/16"-18x7/8"
Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when the opener is operated.
Clevis Pin
5/16"x1"
26
Page 27
Door Arm to Trolley 1 pc
1/96
Nuts
5/16"-18
Lock
Washers
5/16"
Ring
Fastener
Straight
Arm
Screws
5/16"-18x7/8
Door
Bracket
Clevis Pin
5/16"x1-1/4"
Curved
Door Arm
Door Arm
Fully Open
Trolley
Door Arm
Connector Hole
Closed
Door
Open Door
Door with
Backward Slant
Door Arm
Connector Hole
Fully Closed
Trolley
Door Arm
All ONE-PIECE Doors
Assemble the Door Arm:
• Fasten the straight and curved door arm sections
together to the longest possible length (with a
2 or 3 hole overlap).
• With the door closed, connect the straight door arm
section to the door bracket with the 5/16"x1-1/4"
clevis pin.
• Secure with a ring fastener.
On one-piece doors, before connecting the door arm to the trolley the travel limits must be adjusted.
Limit adjustment screws are located on the left side panel as shown on page 28. Follow adjustment
procedures below.
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 push bar. The trolley will
travel to the fully open position.
• Manually raise the door to the open position
(parallel to the floor), and lift the door arm to the
trolley. The arm should touch the trolley just in
back of the door arm connector hole. Refer to the
fully open trolley/door arm positions in the
illustration. If the arm does not extend far enough,
adjust the limit further. One full turn equals 2" of
trolley travel.
Closed Door Adjustment:
Decrease DOWN limit
• Turn the DOWN limit adjustment screw clockwise
5 complete turns.
• Press the Door Control push bar. The trolley will
travel to the fully closed position.
• Manually close the door and lift the door arm to the
trolley. The arm should touch the trolley just ahead
of the door arm connector hole. Refer to the fully
closed trolley/door arm positions in the illustration. If
the arm is behind the connector hole, adjust the limit
further. One full turn equals 2" of trolley travel.
Connect the door arm to the trolley:
• Close the door and join the curved arm to the connector hole in the trolley with the remaining clevis pin. It may
be necessary to lift the door slightly to make the connection.
• Secure with a ring fastener.
• Run the opener through a complete travel cycle. If the door has a slight "backward" slant in full open position
as shown in the illustration, decrease the UP limit until the door is parallel to the floor.
27
Page 28
Adjustment Section: Pages 28 – 30
Adjustment Step 1
Adjust the UP and DOWN Limits
Do not make any limit adjustments until the
Safety Reversing Sensors are completely
installed.
Limit adjustment settings regulate the points at
which the door will
The door will
interferes with door travel. The door will
the
down
direction if anything interferes with the
door travel (including binding or unbalanced doors).
To operate the opener, press the Door Control push
bar. Run the opener through a complete travel
cycle.
• Does the door open and close completely?
• Does the door stay closed and not reverse
unintentionally when fully closed?
If your door passes both of these tests, no limit
adjustments are necessary unless the reversing test
fails (see page 30).
stop
stop
when moving up or down.
in the
up
direction if anything
reverse
in
WARNING
Improper adjustment of the travel limits will
interfere with the proper operation of the
safety reverse system.
reverse properly when required and could
seriously injure or kill someone under it.
the safety reverse system following all
adjustments to the travel limits. See page 30.
Left Side
Panel
The door might not
Test
INCREASE
INCREASE
UP
DOWN
TRAVEL
TRAVEL
Adjustment procedures are outlined below. Run
the opener through a complete travel cycle after
each adjustment.
Repeated operation of the opener during
adjustment procedures may cause the motor to
overheat and shut off. Simply wait 15 minutes
and try again.
Read the procedures carefully before proceeding to
Adjustment Step 2. Use a screwdriver to make limit
adjustments.
How and When to Adjust the Limits
If the door does not
but opens
Increase
at least
up
travel. Turn the UP limit adjustment
screw clockwise. One turn equals 2" of travel.
If door does not open at least 5 feet: Adjust the
UP (open) force as explained in Adjustment Step 2.
If the door does not
Increase
down
adjustment screw counterclockwise. One turn
equals 2" of travel.
If door still won't close completely, try lengthening
the door arm, page 26.
If you have adjusted the door arm to the maximum
length and the door still will not close completely,
lower the header bracket. See Installation Step 1,
pages 12 and 13.
open completely
five feet
close completely
travel. Turn the DOWN limit
Limit Adjustment Screws
If the opener
Decrease
down
INCREASE
DOWN
TRAVEL
Limit Adjustment Label
reverses
travel. Turn the DOWN limit
INCREASE
UP
TRAVEL
in fully closed position
adjustment screw clockwise. One turn equals 2"
of travel.
If the door
reverses
when closing and
there is no visible interference to travel cycle
If the opener lights are flashing, the Safety Reversing
Sensor is obstructed. Remove the obstruction.
Test the door for binding: Pull the manual release
handle. Manually open and close the door. If the door
is binding, call for garage door service. If the door is
not binding or unbalanced, adjust the DOWN (close)
force. See Adjustment Step 2.
28
Page 29
Adjustment Step 2
Adjust the Force
Force adjustment controls are located on the right
panel of the opener. Force adjustment settings
regulate the amount of power required to open and
close the door.
The door will
interferes with its travel. The door will
down
direction if anything interferes with its travel
(including binding or unbalanced doors).
If the forces are set too light, door travel may be
interrupted by
direction and
conditions can affect the door movement, so
occasional adjustment may be needed.
The maximum force adjustment range is 260
degrees, about 3/4 of a complete turn. Do not force
controls beyond that point. Turn force adjustment
controls with a screwdriver.
stop
in the updirection if anything
nuisance reversals
stops
in the
up
in the
direction. Weather
reverse
down
in the
WARNING
Too much force on the door will interfere with
the proper operation of the safety reverse
system.
when required and could seriously injure or
kill someone under it.
force beyond the minimum amount required to
close the door. Do not use the force
adjustments to compensate for a binding or
sticking garage door. Test the safety reverse
system following all adjustments to force
levels. See page 30.
The door might not reverse properly
Do not increase the
Force
Adjustment
Controls
1
3
2
9
9
1
1
7
7
3
3
5
5
KG
KG
9
7
3
5
KG
Force Adjustment Label
9
1
7
1
3
5
KG
How and When to Adjust the Forces
Test the DOWN (close) force
Grasp the door bottom when the door is about
halfway through DOWN (close) travel. The door
should reverse.
travel does not guarantee reversal on a two-inch
obstruction. See page 30.
hold or doesn't reverse, decrease the DOWN (close)
force by turning the control counterclockwise.
Make 10 degree turn adjustments until the door
reverses normally. After each adjustment, run the
opener through a complete cycle.
Test the UP (open) force
Grasp the door bottom when the door is about
halfway through UP (open) travel. The door should
stop. If the door is hard to hold or doesn't stop,
decrease UP (open) force by turning the control
counterclockwise.
Make 10 degree turn adjustments until the door
stops easily. After each adjustment, run the opener
through a complete travel cycle.
Reversal halfway through down
If the door is hard to
Right Panel
of Opener
If the door doesn't open
at least
5 feet
Increase UP (Open) force by turning the control
clockwise. Make 10 degree turn adjustments until
door opens completely. Re-adjust the UP limit if
necessary. After each adjustment, run the opener
through a complete travel cycle.
If the door
reverses
during the down (close)
cycle and the opener lights aren't flashing
Increase DOWN (close) force by turning the control
clockwise. Make 10 degree turn adjustments until the
door completes a close cycle. After each adjustment,
run the opener through a complete travel cycle. Do
not increase the force beyond the minimum
amount required to close the door.
29
Page 30
Adjustment Step 3
Test the Protector System
• Press the remote control push button to open
the door.
• Place the opener carton in the path of the door.
• Press the remote control push button to close the
door.
The door will not move more than an inch,
and the opener light(s) will flash.
Professional service is required if the opener
closes the door when the safety reversing
sensor is obstructed.
The garage door opener will not close from a
remote if the indicator light in either sensor is
off
(alerting you to the fact that the sensor is
misaligned or obstructed).
The garage door can be closed by pressing and
holding the Door Control push bar until down travel
is completed.
®
WARNING
Without a properly working safety reversing
sensor, persons (particularly children) could
be seriously injured or killed if trapped by a
closing garage door.
month.
Safety Reversing Sensor
Repeat this test once a
Safety Reversing Sensor
Adjustment Step 4
Test the Safety Reverse System
Test:
• Place a one-inch board (or a 2x4 laid flat) on the
floor, centered under the garage door.
• Operate the door in the down direction.
must reverse on striking the obstruction.
Adjustment:
If the door
far enough in the down direction.
• Increase the DOWN limit by turning the DOWN
limit adjustment screw counterclockwise 1/4 turn.
• Repeat the test.
On a sectional door, make sure limit
adjustments do not force the door arm beyond a
straight up and down position. See the
illustration on page 26.
• When the door reverses on the one-inch board (or
a 2x4 laid flat), remove the obstruction and run the
opener through 3 or 4 complete travel cycles to
test adjustment.
If the door will not reverse after repeated
adjustment attempts, call for professional
garage door service.
stops
on the obstruction, it is not traveling
The door
WARNING
Failure to test and adjust the safety reverse
system may result in serious injury or death to
persons trapped by a closing garage door.
Repeat this test once a month and adjust as
needed.
GARAGE DOOR
One-Inch Board
(or a 2x4 Laid Flat)
Important safety check:
Repeat Adjustment Steps 1, 2 and 4 after:
• Each adjustment of door arm length, force controls
or limit controls.
• Any repair to or adjustment of the garage door
(including springs and hardware).
• Any repair to or buckling of the garage floor.
• Any repair to or adjustment of the opener.
30
Page 31
Weather conditions may cause some minor
changes in door operation requiring some readjustments, particularly during the first year of
operation.
Pages 28 and 29 refer to the limit and force
adjustments. Only a screwdriver is required. Follow
the instructions carefully.
Repeat the safety reverse test (page 30) after any
adjustment of limits or force.
Care of Your Opener
31
IMPORTANT SAFETY INSTRUCTIONS
To reduce the risk of severe injury or death to persons:
1. READ AND FOLLOW ALL INSTRUCTIONS.
2. Do not permit children either to operate or to play with the opener. Keep remote control in a location
inaccessible to children.
3. Operate opener only when the door is in full view and free from any obstruction. Keep the door in
sight until it is completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
4. Check safety reversal system monthly. See page 30. The garage door
MUST
reverse on contact with
a one-inch object (or a 2x4 board laid flat) placed on the floor. If an adjustment is made to either the
force or limit of travel, both adjustments may be needed and the safety reversal system
must
be
checked.
Failure to properly adjust the opener may result in severe injury or death.
5. If possible, use the manual release only when the door is in a closed position. Caution should be
taken whenever the disconnect cord is actuated with the door open.
Weak or broken springs may
cause the door to fall rapidly, causing injury or death to persons.
6. KEEP GARAGE DOORS PROPERLY BALANCED. See page 3.
An improperly balanced door may not
reverse when required and could result in severe injury or death.
Repairs to cables, spring assemblies
and other hardware must be made by a professional garage door person.
7. Disconnect the electric power to the garage door opener before making any repairs or removing the
covers.
8. SAVE THESE INSTRUCTIONS.
Limit Controls
INCREASE
DOWN
TRAVEL
Adjustment Label
(Located on the left side panel)
INCREASE
UP
TRAVEL
Force Controls
Adjustment Label
(Located on the right panel)
KG
1
3
9
7
5
1
3
9
7
5
KG
Maintenance Schedule
Limit and Force Adjustment Controls
WARNING
WARNING
WARNING
The remote control transmitter:
The opener must learn the code of any new remote
control. Page 33 explains how to program your
garage door opener and how to erase all codes if
required. Self service of your receiver and remote
controls is not recommended. If service is needed,
call the toll-free number listed on the back page.
The transmitter battery:
The green test light will glow and the opener will
operate when the remote control is activated, as long
as there is adequate battery power.
If the test light is
check the test light if transmission range decreases.
dim or off
, replace the battery. Also
The 12V battery should produce power for at least a
year.
Dispose of your old battery properly.
Once a Month
Manually operate door. If it is unbalanced or
binding, call for professional garage door service.
Check to be sure door opens and closes fully.
Adjust limits and/or force if necessary. (See pages
28 and 29.)
Repeat the safety reverse test. Make any
necessary adjustments. (See page 30.)
Oil door rollers, bearings and hinges.
The opener does not require additional lubrication.
Do not grease the door tracks.
Once a Year
Page 32
Operation of Your Opener
Activate the opener with any of the following:
• The Remote Control Transmitter. Hold push
button down until the door starts to move.
• The Door Control. Hold push bar or button down
until the door starts to move.
• The Outside Keylock or Keyless Entry. (See
Accessories)
When the opener is activated with the safety
reversing sensor installed and correctly aligned:
1. If open, the door will close. If closed, the door will
open.
2. If closing, the door will reverse.
3. If opening, the door will stop (allowing space for
entry and exit of pets and for fresh air).
4. If the door has been stopped in a partially open
position, it will close.
5. If obstructed while closing, the door will reverse.
6. If obstructed while opening, the door will stop.
7. The garage door will reverse in the closing cycle
when the invisible beam is broken. If fully open,
the door will not close when the beam is broken.
The sensor has no effect in the opening cycle.
If the sensor is not installed, or is not aligned correctly,
the door won't close from any remote transmitter. You
can close the door with the Door Control, the Outside
Keylock, or Keyless Entry, however, if you activate
them
until down travel is complete
them too soon, the door will
The opener lights will
blink for 5 seconds
safety reversing sensor causes the door to reverse.
Opener Lights will turn on under the following
conditions: When the opener is initially plugged in;
when the power is interrupted; when the opener is
activated. They will turn off automatically after 4-1/2
minutes or provide constant light when the Light
feature is activated. Bulb size is 75 watts maximum.
. If you release
reverse.
when the
WARNING
Weak or broken springs could allow an open
door to fall (either rapidly or unexpectedly),
resulting in serious injury, death or property
damage.
rope and handle
closed.
Trolley
Release Handle
(Pull Down)
Manual disconnect
The lockout feature
prevents the trolley from
reconnecting automatically. Pull the manual
release handle down and
back (toward the
opener). The door can
then be raised and
lowered manually as
often as necessary. To
disengage the Lockout
Feature, pull the manual
release handle straight
down. The trolley will
reconnect on the next
UP or DOWN operation.
If possible, use the manual release
only
when door is fully
To open the door
manually:
The door should be
Trolley
Release Arm
fully closed if possible.
Pull down on the
manual release handle
Manual
NOTICE
and lift the door
manually. To
reconnect the door to
the opener, press the
Door Control push bar.
position
Trolley
Manual
Release Handle
(Pull Down & Back
Towards Opener)
Lockout position
Trolley
Release Arm
NOTICE
Operation of the Multi-Function Door Control Panel
Lighted Push Bar:
Press to open or close the door. Press again to
reverse
the door while it's opening.
Light Feature:
Press the Light button. If the opener light is
turn on.
If the opener light is on, (even in the 4-1/2 minute
automatic cycle) it will turn off.
But if you use the Light button to turn the light(s) on
and then activate the opener, the light(s) will turn off
after 4-1/2 minutes.
The Light feature will not control the opener lights
when the door is in motion.
the door during the closing cycle or to
off
stop
, it will
Lock Feature:
Designed to prevent operation of the door from
portable remote controls. However, the door will
open and close from the Door Control push bar and
from the Outside Keylock and the Keyless Entry
Accessories.
To activate: Press and hold the Lock button for 2
seconds. The push bar indicator light will flash as
long as the Lock is on.
To turn off: Press and hold the Lock button again
for 2 seconds. The push bar indicator light will stop
flashing. Normal operation will resume. The Lock
feature will also turn off whenever the "Smart"
button on the opener end panel is activated.
32
Page 33
Receiver & Remote Control Programming
NOTICE: To comply with FCC rules, adjustment or modification of this
receiver and/or transmitter are prohibited, except for changing the code
setting or replacing the transmitter battery. THERE ARE NO OTHER
USER SERVICEABLE PARTS.
Your garage door opener receiver and remote
control have been set at the factory to a matching
code. The opener will activate when the LARGE
button on the remote(s) is pressed. The multifunction remote(s) can also activate additional
garage door openers and/or light control models
874CB and 872CB.
Below are instructions for programming your opener
to match the other buttons on your multi-function
remote and any additional remotes you may
purchase. See available accessories on page 38.
WARNING
Children operating or playing with a garage
door opener can injure themselves or others.
The garage door could close and cause
serious injury or death.
to operate the door control(s) or remote
control transmitter(s).
A moving garage door could injure or kill
someone under it.
when you can see the door clearly, it is free of
obstructions, and is properly adjusted.
Do not allow children
Activate the opener only
Your "Smart" garage door opener will operate with
up to 4 "Smart" remote controls (with green indicator
lights), a Keyless Entry System and code switch
remote controls with red indicator lights.
To Add A Remote
Select a push button to operate the receiver,
Figure 1.
1. Press and
hold
the remote push button.
2. Then press and release the "Smart" button on
the right side panel of the opener, Figure 2.
The opener lights will
flash once.
3. Release the remote push button.
Now the opener will operate when the remote
control push button is pressed.
If you release the remote control push button
before the opener lights flash, the opener will
not accept the code.
To Change the Selected Push Button
On the Same Remote
If you decide to use a different remote control button
than originally programmed into the opener, you
need to erase
all
the learned codes and reprogram
each remote used to operate the garage door
opener.
Figure 1
Figure 2
Multi-Function Remote Control
Battery
Indicator Light
Select a Remote
Push Button
Garage Door Opener
(With "Smart" Button)
1
2
9
7
5
KG
3
9
1
3
1
7
3
5
KG
To Erase All Remote Control Codes
• Press and hold the "Smart" button on the opener
panel until the indicator light turns off (about 6
seconds).
All
the codes the opener has learned
will be erased.
• To reprogram, repeat Steps 1 – 3 for each remote
control in use.
Code programming instructions are also located
on the opener panel.
33
"Smart"
Button
Indicator
Light
END PANEL
Page 34
Having a Problem?
SituationProbable Cause & Solution
The opener doesn't
operate from either
the door control or
the remote control:
Opener operates
from remote control,
but not from door
control:
The door operates
from the door control,
but not from the
remote control:
1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light,
check the fuse box or the circuit breaker. (Some outlets are controlled by a wall
switch.)
2. Have you disabled all door locks? Review installation instruction warnings on Page 11.
3. Is there a build-up of ice or snow under the door? The door may be frozen to the
ground. Remove any restriction.
4. The garage door spring may be broken. Have it replaced.
5. Repeated operation may have tripped the overload protector in the motor. Wait
15 minutes. Try again.
1. Is the door control push bar lit? If not, Remove the bell wire from the opener terminal
screws. Short the red and white terminals by touching both terminals at the same
time with a piece of wire. If the opener runs, check for a faulty wire connection at the
door control, a short under the staples, or a broken wire.
2. Are the wiring connections correct? Review Step 6, page 18.
1. If your model has the Lock feature, turn it
2. Is the wall push button flashing? Your opener needs to re-learn a remote control
code. Refer to instructions on the opener panel.
3. Does the battery test light glow when the remote control push button is pressed? If
not, replace the battery.
4. Program the receiver to match the remote control code.
5. Repeat the receiver programming procedure with all remote controls.
off.
The remote control
has short range:
Opener noise is
disturbing in living
quarters of home:
The garage door
opens and closes
by itself:
The door doesn't
open completely:
1. Check the battery test light. If the light is dim, replace the battery.
2. Change the location of the remote control in your car.
3. Check to be sure the antenna on the side or back panel of the opener extends fully
downward.
4. Some installations may have shorter range due to a metal door, foil backed
insulation, or metal garage siding.
If operational noise is a problem because of proximity of the opener to the living
quarters, the Vibration Isolator Kit 41A3263 can be installed. This kit was designed to
minimize vibration to the house and is easy to install.
1. Be sure that all remote control push buttons and battery indicator lights are off.
2. Remove the bell wire from the door control terminals and operate from the remote
control only. If this solves the problem, the door control is faulty (replace), or there is
an intermittent short on the wire between the door control and the opener.
1. If the door has been working properly but now doesn't open all the way, increase the
up force.
2. Is something obstructing the door? Remove the obstruction or repair the door.
3. If door opens at least 5 feet, the travel limits may need to be increased. One turn
equals 2 inches of travel. See page 28.
See page 29.
Repeat the safety reverse test after the adjustment is complete.
The door stops but
doesn't close
completely:
Review the travel limits adjustment procedures on page 28.
Repeat the safety reverse test after any adjustment of door arm length, close
force or down limit.
34
Page 35
Having a Problem?
SituationProbable Cause & Solution
(continued)
The door opens but
won't close:
The door reverses
for no apparent
reason and opener
lights don't blink:
The door reverses for
no apparent reason
and opener light(s)
blink for 5 seconds
after reversing:
The opener lights…
1. If the opener lights blink, check the safety reversing sensor. See page 23
2. If the opener lights do not blink and it is a new installation, check the down force.
See Adjustment Step 2, page 29. For an existing installation, see below.
Repeat the safety reverse test after the adjustment is complete.
1. Is something obstructing the door? Pull the manual release handle. Operate the door
manually. If it is unbalanced or binding, call for professional garage door service.
2. Clear any ice or snow from the garage floor area where the door closes.
3. Review the force adjustment procedures on page 29.
4. If door reverses in the
Repeat the safety reverse test after adjustments to force or travel limits. The need
for occasional adjustment of the force and limit settings is normal. Weather
conditions in particular can affect door travel.
Check the safety reversing sensor. Remove the obstruction or align the receiving eye.
See page 23.
don't turn on:
Replace the light bulbs (75 watts maximum). Use a
bulb if regular bulb burns out.
don't turn off:
Is the Light feature on? Turn it
fully closed
off.
position, decrease the travel limits (page 28).
standard neck
garage door opener
The opener strains
or maximum force is
needed to operate
the door:
The opener motor
hums briefly, then
won't work:
The opener won't
operate due to
power failure:
The door may be out of balance or the springs are broken. Close the door and use the
manual release rope and 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 for professional
garage door service.
1. The garage door springs are broken. See above.
2. If the problem occurs on the first operation of the opener, door may be locked.
Disable the door lock
of phase. Remove the belt; cycle the motor to the down position. Observe the drive
sprocket. When it turns in a clockwise direction and stops in the down position,
reinstall the belt.
Repeat the safety reverse test after the adjustment is complete.
1. Use the manual release handle to disconnect the trolley. The door can be opened
and closed manually. When the power is restored, press the Door Control and trolley
will automatically reconnect (unless trolley is in the lockout position, see page 32).
2. The Outside Quick Release accessory (for use on garages with no service door)
disconnects the trolley from outside the garage in case of power failure.
Do not increase the force to operate the opener.
. If the belt was removed and reinstalled, the motor may be out
35
Page 36
Rail Assembly Parts
Repair Parts
1
6
3
5
2
10
3
4
7
RAIL GREASE
NO. 83A4
5
8
9
KEYPART
NO. NO.DESCRIPTION
11A995Master link kit
241B3869-1Complete trolley assembly
3183B112Rail braces (each)
4183B111T-rail – center sections (each)
5183B113T-rail – end sections (each)
641A3589Full belt assembly
741A3588Belt pulley bracket
883A4Rail grease
941B4103Tension assembly (Spring/Trolley Nut)
10109B33Trolley Clip
NOT SHOWN
41A2848Rail assembly hardware kit (includes
hardware illustrated on page 7).
Installation Parts
LOCK
KEY PART
NO. NO.DESCRIPTION
141A4251-7A Multi-function door control panel
210A1412V battery
329C128Transmitter visor clip
441A3888-11 Multi-function remote control
541A2828Manual release rope & handle assembly
6217A2382-conductor bell wire – white & white/red
712B374-1Door bracket
812B380-1Door bracket plate
941A4353-1Header bracket w/clevis pin & fastener
10178B35Curved door arm section
11178B34Straight door arm section
1212B350Hanging brackets
1312B483“C” wrap bracket
1412B484Square hole mounting bracket
1512B485Slotted hole mounting bracket
1641A4373ASafety sensor kit (receiving and sending
41A4437-1Installation hardware bag (includes
41A4116Safety sensor hardware
114A1981Owner's manual
1
LIGHT
housing & screw only (no circuit board)
eyes) with 3' 2-conductor bell wire attached
NOT SHOWN
hardware illustrated on page 7).
12VDC
2
3
10
CEILING MOUNT ONLY
UP
6
4
7
5
NOTICE
8
9
12
11
13
14
15
16
36
Page 37
Opener Assembly Parts
Repair Parts
1
2
9
4
7
3
5
6
8
8
20
3
12
10
11
18
19
9
13
15
5
14
16
17
Brown
Wire
Drive
Gear
(Down)
Contact
Center Limit
Contact
LIMIT SWITCH ASSY.
DN
(Up)
Contact
Grey
Wire
UP
Yellow
Wire
KEYPART
NO.NO.DESCRIPTION
141A4371Belt cap retainer
241A4885Gear and sprocket assy.,
Complete with:
Spring washer
Thrust washer
Retaining ring
Bearing plate
Roll pins (2)
Drive gear and worm gear
Helical gear w/retainer and
grease
341A2817Drive/worm gear kit w/grease
Roll pins (2)
441B4245Line cord
541C4876Wire harness assembly with plug
641A4252-6C Receiver logic board assembly
Removing of all ropes......................................................................................................................................3, 11
Possible door damage...................................................................................................................................16, 24
Door control connections....................................................................................................................................18
Programming the receiver ..................................................................................................................................33
Erasing all codes ................................................................................................................................................33
Activating other openers and/or light products ...................................................................................................33
Problems with remote control operation.............................................................................................................34
Safety Reverse Test Procedure..........................................................................................................................30
Applying excessive force on the door...............................................................................................................29
Buckling or uneven floor.................................................................................................................................4, 5
User Instruction Label for Garage Wall.......................................................................................................11, 18
39
Page 40
CHAMBERLAIN SERVICE
HOW TO ORDER
REPAIR PARTS
Selling prices will be furnished on request, or parts will
be shipped at prevailing prices and you will be billed
accordingly.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE
THE FOLLOWING INFORMATION:
• PART NUMBER
• PART NAME
• MODEL NUMBER
ADDRESS ORDERS TO:
THE CHAMBERLAIN GROUP, INC.
Parts and Service Department
2301 N. Forbes Boulevard, Suite 104
Tucson, Arizona 85745
SERVICE INFORMATION
TOLL FREE NUMBER:
1-800-528-9131
CHAMBERLAIN GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY
The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product that it is free from defect in
materials and/or workmanship for a period of one year from the date of purchase. The proper operation of this
product is dependent on your compliance with the Owner’s Manual instructions regarding installation,
operation, maintenance and testing. Failure to comply strictly with those instructions will void this warranty in
its entirety. Please note that the safety reverse system, in order to operate properly with your garage door,
must be adjusted and periodically tested in accordance with the Owner’s Manual.
If, during the limited warranty period, it appears as though this product contains a defect which is covered by this
limited warranty, call our toll free service number, before dismantling this product, at 1-800-528-9131. 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 the toll free service number. Please include a br ief description of the problem and a dated proof-ofpurchase receipt with any product that is 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, OR ANY ALTERNATIONS TO THIS PRODUCT), LABOR CHARGES FOR DISMANTLING OR
REINSTALLING A REPAIRED OR REPLACED UNIT, OR REPLACEMENT BATTERIES.
UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL
DAMAGES ARISING IN CONNECTION WITH THE 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.
LIMITED WARRANTY ON MOTOR - MODEL 8100
The motor is fully warranted for the lifetime of the product to the first-time purchaser.