Chamberlain 8010 User manual

LiftMaster
300 Windsor Drive
Oak Brook, IL 60523
LiftMaster.com
CONTENTS
Preparation .............................. 1-5
Assembly................................. 6-7
Installation..............................8-23
Adjustments .......................... 24-26
Operation.............................. 27-30
Maintenance.............................. 31
Troubleshooting.......................... 32
Warranty .................................. 33
Repair Parts .............................. 34
Contact Information ..................... 35
Chain/Cable Drive DC
Garage Door Opener
■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 garage door opener are required to ensure safe operation.
■The model number label is located on the back panel of your garage door opener.
■This garage door opener is compatible with Security+ 2.0®accessories.
■WARNING: To reduce the risk of injury to persons – Use this opener ONLY with a
7 or 8 foot sectional door.
Serial Number:
Date of Purchase:
Model Number:
Model 8010
FOR RESIDENTIAL USE ONLY
INSTALL ON 7 OR 8 FOOT
SECTIONAL DOORS ONLY
Write down the following information
for future reference:
Register your garage door opener to receive
updates and offers from LiftMaster
Send it in by texting the photo to 71403
(US) or visit
www.liftmaster.com/register (Global)
Take a photo of the camera icon including
the points ( ).

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Torsion
Spring Extension
Spring
OR
2TGRCTCVKQP
WARNING: This product can expose you to chemicals including lead, which
are known to the State of California to cause cancer or birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov

3
Additional Items You May Need:
Surveyyour garage area to see if you will need any of the following items:
l(2) 2X4 PIECES OFWOOD
Maybe used to fasten the header bracket to the structural supports.Also used to position the
garage door opener during installation and for testing the safety reversing sensors.
lSUPPORT BRACKET AND FASTENING HARDWARE
Must be used if you have a finished ceiling in your garage.
lEXTENSION BRACKETS (MODEL 041A5821-1) OR WOOD BLOCKS
Depending upon garage construction, extension brackets or wood blocks may be needed to
install the safety reversing sensor.
lFASTENING HARDWARE
Alternate floor mounting ofthe safetyreversing sensor will require hardware notprovided.
lDOOR REINFORCEMENT
Required if you have a lightweight steel, aluminum, fiberglass or glass panel door.
Tools Needed
2
1
3/16
5/16
1/4
7/32
5/16
5/16
1/4
Preparation

4
Carton Inventory
Accessorieswill vary depending on the garage door opener model purchased.Depending on your
specific model, other accessories maybe included with your garage door opener. The instructions for
these accessories will be attached to the accessoryand are not included in this manual.The images
throughout this manual are for reference and your product may look different.
A. Header bracket
B. Pulley
C. Door bracket
D. Curved door arm
E. Straight door arm
F. Trolley
G. Emergency release rope and handle
H. Rail
I. Garage door opener (motor unit)
J. Chain spreader
K. Chain and cable
L. Door control (883LM)
M. Remote control (891LM)
N. The Protector System®
Safety reversing sensors with 2 conductor white and white/black wire attached: Sending
Sensor (1), Receiving Sensor (1)
O. Safety Sensor Brackets (2)
NOT SHOWN
White and red/white wire
Owner's manual
Hardware Bag
M
A
B
C
JI
NO
D
E
F
GK
L
H
Preparation

5
Hardware 041A8068
Lock Nut 1/4"-20 (4)
Self-Threading Screw
1/4"-20x1-3/4" (2)
Clevis Pin 5/16"x1-1/2"
Ring Fastener (3)
Hex Bolt 1/4"-20x3/4" (4)Self-Threading Screw
1/4"-14x5/8" (2)
Clevis Pin 5/16"x1"Clevis Pin 1/4"x1-1/4"
Carriage Bolt
1/4"-20x1/2" (2)
Wing Nut 1/4"-20 (2)
ASSEMBLY INSTALLATION
Screw 6ABx1" (2)
DOOR CONTROL
Lag Screw 5/16"-9x1-5/8" (2)
Drywall Anchors (2)
Insulated Staples
(Not Shown)
Preparation

6
Assembly
1 Attach the Rail to the Garage Door Opener
To avoid SERIOUS damage to garage door opener, use ONLY the 1/4"-20x1-3/4" self-threading
screws provided.
To avoid installation difficulties, do not run the garage door opener untilinstructed to do so.
1. Place the motor uniton packing material to protect the cover,and rest the back end of the rail
on top. For convenience, puta support under the front end ofthe rail.
2. Ensure that the chain spreader is installed.
3. Place the rail onto the motor unit. Loop the chain around the sprocket. The sprocketteeth must
engage the chain.
4. Align the screw holes in the rail with the holes on top of the motor unit.Use a 1/4" socket to
fasten the rail with the screws.
5. Attach the outer trolley to the rail and then slide into place over the inner trolley.
HARDWARE
Self-Threading Screw
1/4"-20x1-3/4"
IMPORTANT: Use ONLY
the 1/4"-20x1-3/4"
self-threading screws
provided in a separate bag
inside the hardware bag.
Packing
Material
Rail
Tab
Sprocket
Chain spreader
Outer
Trolley
Inner
Trolley

7
Assembly
2 Tighten the Chain
1. Spin the inner nut and lockwasher down the trolley threaded shaft, away from the trolley.
2. To tighten the chain, turn the outer nut in the direction shown.
3. When the chain isapproximately1/4" (6 mm) above the base of the rail atit's midpoint, re-
tighten the inner nut to secure the adjustment.
Sprocket noise can result if the chain is too loose or too tight.When installation iscomplete, you may
notice some chain droop with the door closed. Thisis normal. Ifthe chain returns to the position shown
when the door is open,do notre-adjust the chain.
NOTE: During future maintenance, ALWAYS pull the emergency release handle to disconnect the
trolley before adjusting the chain.
You have now finished assembling your garage door opener. Please read the following warnings
before proceeding to the installation section.
Base of Rail Mid length of Rail
Chain
1/4" (6 mm)
Outer
Nut
Lock
Washer
Trolley
Threaded
Shaft
Inner Nut
To Tighten
Inner Nut
To Tighten Outer Nut

8
Installation
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2. Install garage door opener ONLY on properlybalanced and lubricated garage door. An
improperly balanced door mayNOT 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 the emergency release within reach, but at least 6 feet (1.83 m) above the floor and
avoiding contact with vehicles to avoid accidental release.
7. NEVER connect garage door opener to power source until instructed to do so.
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:
lwithin sight of the garage door.
lout of reach of children at minimum height of 5 feet (1.5 m).
laway 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.
13. To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution, disconnect ALL electric
power BEFORE performing ANY service or maintenance.

9
Installation
1 Determine the Header Bracket Location
To prevent possible SERIOUS INJURY or DEATH:
lHeader 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.
lConcrete anchors MUSTbe used ifmounting header bracketor 2x4 into masonry.
lNEVER try to loosen, move or adjust garage door, springs, cables,pulleys,brackets,or their
hardware, ALL of which are under EXTREME tension.
lALWAYS call a trained door systemstechnician if garage door binds,sticks, or is outof
balance. An unbalanced garage door mightNOT reverse when required.
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
when clearance isminimal.(It maybe mounted on the wall upside down ifnecessary,to gain
approximately 1/2" (1 cm).
Ifyou 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.
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.
NOTE: Ifthe total number of inches exceeds the height available in your garage, use the maximum
height possible, or refer to page 10 for ceiling installation.
Header Wall
Unfinished
Ceiling
Vertical Centerline
of Garage Door
2x4
2x4
Structural
Supports
Level
(Optional)
OPTIONAL
CEILING
MOUNT FOR
HEADER
BRACKET
Sectional door with curved track
Header Wall
Track
2" (5 cm)
Highest Point
of Travel
Door

10
Installation
2 Install the Header Bracket
You can attach the header bracketeither 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).
HARDWARE
Lag Screw 5/16"-9 x 1-5/8"
OPTION A WALL INSTALLATION
1. Center the bracketon the vertical centerline with the bottom edge ofthe bracket on the
horizontal line asshown (with the arrow pointing toward the ceiling).
2. Mark the vertical set of bracket holes. Drill 3/16" pilot holes and fasten the bracket securely to a
structural support with the hardware provided.
UP
Wall Mount
Optional Mounting
Holes
Vertical
Centerline of
Garage Door
(Header Wall)
Header
Bracket
2x4 Structural
Support
Door Spring
(Garage Door)
Highest Point
of Garage
Door Travel
Horizontal
Line
Lag Screw
5/16"-9x1-5/8"
OPTION B CEILING INSTALLATION
1. Extend the vertical centerline onto the ceiling as shown.
2. Center the bracketon the vertical mark, no more than 6" (15 cm) from the wall. Make sure the
arrow is pointing away from the wall. The bracket can be mounted flush against the ceiling
when clearance is minimal.
3. Mark the side holes. Drill 3/16" pilot holes and fasten bracket securely to a structural support
with the hardware provided.
UP
(Header Wall)
Ceiling Mounting
Holes (Finished Ceiling)
Vertical
Centerline of
Garage Door
Header
Bracket
6" (15 cm)
Maximum
Door Spring
(Garage Door)
Lag Screw
5/16"-9x1-5/8"

11
Installation
3 Attach the Rail to the Header Bracket
1. Align the rail with the header bracket. Insertthe clevispin through the holes in the header
bracket and rail. Secure with the ring fastener.
NOTE: Use the packing material as a protective base for the garage door opener.
Clevis Pin
5/16"x1-1/2"
Ring Fastener
HARDWARE
Clevis Pin 5/16"x1-1/2" Ring Fastener
4 Position the Garage Door Opener
To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of
door.
1. Remove the packing material and lift the garage door opener onto a ladder.
2. Fully open the door and place a 2x4 (laid flat) under the rail.
A 2x4 isideal for setting the distance between the rail and the door. If the ladder is nottall enough you
will need help at this point. If the door hits the trolley when it is raised, pull the trolley release arm down
to disconnectthe inner and outer trolley.Slide the outer trolley toward the garage door opener. The
trolley can remain disconnected until instructed.
Connected Disconnected

12
Installation
5 Hang the Garage Door Opener
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.
Hanging the garage door opener will vary depending on your garage. Below are three example
installations. Your installation may be different. For ALL installations the garage door opener MUST be
connected to structural supports. The instructions illustrate one of the examples below.
Unfinished CeilingFinished Ceiling
HARDWARE
Lag Screw #14-10x1-1/2" Lock Nut 1/4"-20
Hex Bolt 1/4"-20x3/4"
1. On finished ceilings,use the #14-10x1-1/2" lag screws to attach a supportbracket(not
provided) to the structural supports before installing the garage door opener.
2. Make sure the garage door opener isaligned with the header bracket.Measure the distance
from each side ofthe garage door opener to the support bracket.
3. Cut both pieces of the hanging bracket to required lengths.
4. Attach the end ofeach hanging bracket to the supportbracket with appropriate hardware (not
provided).
5. Attach the garage door opener to the hanging bracketswith the hex bolts and nuts.
6. Remove the 2x4 and manually close the door. Ifthe door hits the rail,raise the header bracket.
Finished
Ceiling
(not provided) (not provided)
Lag Screw
#14-10x1-1/2"
123
(not
provided)
Hex Bolt
1/4"-20x3/4"
Lock Nut 1/4"-20
456
Lag Screw
#14-10x1-1/2"

13
Installation
6 Install the Light Bulb
To prevent possible OVERHEATING of the endpanel or light socket:
lUse ONLY A19 incandescent (60W maximum) or compact fluorescent (23W maximum) light
bulbs.
lDO NOT use incandescent bulbs larger than 60W.
To preventdamage to the opener:
lDO NOT use compact fluorescent light bulbs larger than 23W (100W) equivalent.
lDO NOT use halogen bulbs.
lDO NOT use short neck or specialty light bulbs.
1. Pressthe triangular release buttons and swing the lens open.
2. Insert an A19 incandescent (60W maximum) or compact fluorescent (23W, 100W equivalent)
light bulb into the light socket.
3. Swing the lens shut until triangular buttons click into place.
NOTE: Do not use halogen, short neck, or specialty light bulbs as these may overheat the unit. The use
of LED bulbs may reduce the operating range or performance of your remote controls.
7 Attach the Emergency Release Rope and Handle
To prevent possible SERIOUS INJURY or DEATH from a falling garage door:
lIf possible, use emergency release handle to disengage trolley ONLY when garage door is
CLOSED. Weak or broken springsor unbalanced door could resultin an open door falling
rapidlyand/or unexpectedly.
lNEVER use emergency release handle unless garage doorway is clear of persons and
obstructions.
lNEVER use handle to pull door open or closed. If rope knotbecomes untied, you could fall.
1. Insert one end of the emergency release rope through the handle. Make sure that“NOTICE”
is rightside up. Secure with an overhand knotat least1" (2.5 cm) from the end of the rope to
prevent slipping.
2. Insert the other end of the emergency release rope through the hole in the trolleyrelease arm.
Mount the emergency release within reach, but at least 6 feet (1.83 m) above floor, avoiding
contact with vehicles to prevent accidental release and secure with a knot.
NOTE: If it is necessary to cut the emergency release rope, seal the cut end with a match or lighter to
prevent unraveling. Ensure the emergency release rope and handle are above the top of all vehicles to
avoid entanglement.

14
Installation
8 Install the Door Bracket
Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE
installation ofdoor bracket.Contact the garage door manufacturer or installing dealer for opener
reinforcement instructions or reinforcement kit. Failure to reinforce the top section as required
according to the door manufacturer may void the door warranty.
A horizontal and vertical reinforcement is needed for
lightweight garage doors (fiberglass, aluminum, steel,
doors with glass panel, etc.) (not provided). A horizontal
reinforcement brace should be long enough to be
secured to two or three vertical supports. A vertical
reinforcement brace should cover the heightofthe top
panel. Contact the garage door manufacturer or installing
dealer for opener reinforcement instructions or
reinforcement kit.
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 the next step.
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.
2. Position the top edge of the bracket2"-4" (5-10 cm) belowthe top edge of the door, OR
directlybelowany structural support across the top ofthe door.
3. Mark, drill holes and install as follows, depending on your door’s construction:
Metal or light weight doors using a vertical angle iron brace between the door panel support and
the door bracket:
lDrill 3/16" fastening holes.Secure the door bracket using the two self threading screws.
(Figure1)
lAlternately, use two 5/16" bolts, lock washers and nuts (not provided). (Figure2)
Metal, insulated or light weight factory reinforced doors:
lDrill 3/16" fastening holes. Secure the door bracket using the self-threading screws. (Figure3)
Wood Doors:
lUse top and bottom or side to side door bracket holes.Drill 5/16” holes through the door and
secure bracket with 5/16"-18 x 2" carriage bolts,lock washers and nuts (notprovided).
(Figure4)
NOTE: The 1/4"-14 x 5/8" self-threading screws are not intended for use on wood doors.
FIGURE 1
FIGURE 3
Vertical Reinforcement
Vertical Centerline
of Garage Door
UP
Door Bracket Self-Threading Screw
1/4"-14 x 5/8"
Self-Threading
Screw
1/4"-14 x 5/8"
Vertical Centerline
of Garage Door
UP
FIGURE 4
Vertical
Centerline of
Garage Door
Bolt 5/16"-18 x 2"
(Not provided)
UP
Inside Edge of Door or
Reinforcement Board
FIGURE 2
Vertical Reinforcement
Bolt 5/16"-18 x 2"
(Not provided)
Lock Washer 5/16"
Nut 5/16"-18
Door Bracket
UP
Vertical
Centerline
of Garage Door
Self-Threading Screw
1/4"-14 x 5/8"
HARDWARE

15
Installation
9 Connect the Door Arm to the Trolley
IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm.
1. Close the door. Disconnectthe trolley by pulling the emergency release handle.
2. Attach the straight door arm to the outer trolley using the clevis pin.Secure with the ring
fastener.
3. Attach the curved door arm to the door bracket using the clevis pin.Secure with the ring
fastener.
4. Bring arm sectionstogether.Find two pairs ofholesthatline up and join sections.Selectholes
as far apart as possible to increase door arm rigidity and attach using the bolts and nuts.
5. Pull the emergency release handle toward the garage door opener until the trolley release
arm is horizontal. The trolley will re-engage automatically when the garage door opener is
activated.
HARDWARE
Clevis Pin 5/16"x1"Clevis Pin 5/16"x1-1/4"
Ring Fastener
Hex Bolt 1/4"-20x3/4"
Lock Nut 1/4"-20
Straight
Door Arm Curved
Door
Arm
(Groove
facing
out)
CORRECT
Straight
Door
Arm Curved
Door
Arm
INCORRECT
Lock Nut
1/4"-20
Hex Bolt 1/4"-20x3/4"
Clevis Pin 1/4"x1-1/4"
Ring Fastener
Clevis Pin
5/16"x1"

16
Installation
10 Install the Door Control
To prevent possible SERIOUS INJURY or DEATH from electrocution:
lBe sure power is NOT connected BEFORE installing door control.
lConnect door control ONLY to 12 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a closing garage door:
lInstall 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.
lNEVER permitchildren to operate or play with door control push buttons or remote control
transmitters.
lActivate door ONLY when it can be seen clearly, is properly adjusted, and there are no
obstructions to door travel.
lALWAYS keep garage door in sight until completelyclosed. NEVERpermitanyone to cross
path of closing garage door.
INTRODUCTION
Install the 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 the moving partsof the door.
NOTE: Your product may look different than the illustrations.
HARDWARE
Screw 6ABx1" (2)
Drywall Anchors (2)
Insulated Staples
(Not Shown)
1. Strip 1/4" (6 mm) ofinsulation fromone end of the wire and separate the wires.
2. Connectone wire to each of the two screwson the back ofthe door control. The wires can be
connected to either screw.
3. Mountthe door control with the hardware provided.
1/4" (6 mm)
1 2 3

17
Installation
11 Wire the door control to the garage door opener
HARDWARE
Insulated Staple
(Not Shown)
1. Run the white and red/white wire from the door control to the garage door opener. Attach the
wire to the wall and ceiling with the staples(not applicable for gang box or pre-wired
installations). Do not pierce the wire with the staple asthismay cause a shortor an open
circuit.
2. Strip 7/16 inch (11 mm) of insulation from the end ofthe wire near the garage door opener.
3. Connectthe wire to the red and white terminals on the garage door opener. If your garage is
prewired make sure you use the same wires that are connected to the door control. To insert
or release wires from the terminal,push in the tab with screwdriver tip.
Staple
RED
WHITE
WHITE
GREY
7/16" (11 mm)
2
3
1
12 Attach the warning labels
1. Attach the entrapmentwarning label on the wall near the door control with tacksor staples.
2. Attach the manual release/safety reverse testlabel in a visible location on the inside of the
garage door.

18
Installation
13 Install the Protector System®
Be sure power is NOT connected to the garage door opener BEFORE installing the safety
reversing sensor.
To prevent SERIOUS INJURY or DEATH from closing garage door:
lCorrectly connect and align the safety reversing sensor. This required safety device MUST NOT
be disabled.
lInstall the safety reversing sensor so beam is NO HIGHER than 6" (15 cm) above garage floor.
IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSORS
The safety reversing sensors must be connected andaligned correctly before the garage door
opener will move in the down direction.
The sending sensor (with an amber LED) transmits an invisible light beamto the receiving sensor (with
a green LED). If an obstruction breaks the light beam while the door is closing, the door will stop and
reverse to the full open position,and the garage door opener lights will flash 10 times.
NOTE: For energy efficiency the garage door opener will enter sleep mode when the door is fully
closed. The sleep mode shuts the garage door opener down until activated. The sleep mode is
sequenced with the garage door opener light bulb; as the light bulb turns off the sensor LEDs will turn
offand whenever the garage door opener lights turn on the sensor LEDs will light. The garage door
opener will not go into the sleep mode until the garage door opener has completed 5 cycles upon
power up.
Wheninstalling the safety reversing sensors check the following:
lSensors are installed inside the garage, one on either side of the door.
lSensors are facing each other with the lenses aligned and the receiving sensor lens does not
receive direct sunlight.
lSensors are no more than 6 inches (15 cm) above the floor and the light beam is
unobstructed.
Safety Reversing Sensor
6" (15 cm) max. above floor
Invisible Light Beam
Protection Area
Facing the door from inside the garage
HARDWARE
Carriage Bolt
1/4"-20 x 1/2" Wing Nut
1/4"-20
The safety reversing sensors can be attached to the door track, the wall, or the floor. The sensors should
be no more than 6 inches (15 cm) above the floor. If the door track will not support the sensor bracket a
wall installation is recommended. Choose one of the following installations.
OPTION A DOOR TRACK INSTALLATION
1. Slide the curved arms of the sensor bracketaround the edge of the door track. Snap into
place so that the sensor bracket is flush against the track.
2. Slide the carriage bolt into the slot on each sensor.
3. Insert the bolt through the hole in the sensor bracket and attach with the wing nut.The lenses
on both sensors should pointtoward each other. Make sure the lens is notobstructed by the
sensor bracket.
No more
than 6 inches
(15 cm) Carriage Bolt
1/4"-20 x 1/2"
Wing Nut
1/4"-20
123

19
Installation
13 Install the Protector System®(continued)
OPTION B WALL INSTALLATION
Ifadditional clearance isneeded an extension bracket (notprovided) or wood blocks can be used.
Make sure each bracket has the same amountofclearance so they will align correctly.
1. Position the sensor bracket against the wall with the curved arms facing the door. Make sure
there is enough clearance for the beam to be unobstructed. Mark holes.
2. Drill 3/16 inch pilot holes for each sensor bracket and attach the sensor bracketsto the wall
using lag screws (not provided).
3. Slide the carriage bolt into the slot on each sensor.
4. Insert the bolt through the hole in the sensor bracket and attach with the wing nut.The lenses
on both sensors should pointtoward each other. Make sure the lens is notobstructed by the
sensor bracket.
(Not provided)
No more than
6 inches (15 cm)
12
Inside
Garage
Wall
(Not provided)
Lens
Carriage Bolt
1/4"-20 x 1/2"
Wing Nut
1/4"-20
34
OPTION C FLOOR INSTALLATION
Use an extension bracket (not provided) or wood block to raise the sensor bracket if needed.
1. Carefully measure the position of both sensor brackets so they will be the same distance from
the wall and unobstructed.
2. Attach the sensor brackets to the floor using concrete anchors (not provided).
3. Slide the carriage bolt into the slot on each sensor.
4. Insert the bolt through the hole in the sensor bracket and attach with the wing nut.The lenses
on both sensors should pointtoward each other. Make sure the lens is notobstructed by the
sensor bracket.
Inside
Garage
Wall
(Not provided)
1 2
Carriage Bolt
1/4"-20 x 1/2"
Wing Nut
1/4"-20
34

20
Installation
14 Wire the Safety Reversing Sensors
If your garage already has wires installed for the safety reversing sensors, see page 21.
HARDWARE
Insulated Staple
(Not Shown)
OPTION A INSTALLATION WITHOUT PRE-WIRING
1. Run the wire from both sensorsto the garage door opener. Attach the wire to the wall and
ceiling with the staples.
2. Strip 7/16 inch (11 mm) of insulation from each set of wires. Separate the wires. Twist the white
wires together. Twist the white/black wires together.
3. Insert the white wiresinto the white terminal on the garage door opener. Insert the white/black
wires into the grey terminal on the garage door opener. To insertor remove the wires from the
terminal, push in the tab with a screwdriver tip.
Staple
7/16" (11 mm)
WHITE
WHITE
GREY
RED
12
3