For Residential And Light Duty Commercial Use
Install on Sectional Doors Only
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
Owner’s Manual
Please read this manual and the enclosed safety materials carefully! ■
Fasten the manual near the garage door after installation. ■
The door WILL NOT CLOSE unless the Protector System ■
properly aligned.
Periodic checks of the opener are required to ensure safe operation. ■
The model number label is located on the front panel of your opener. ■
DO NOT exceed 8 complete cycles of door operation per hour. ■
®
is connected and
TABLE OF CONTENTS
Introduction 2-5
Safety symbol and signal word review . . . . . . . . . . . . . . . . . . . . .2
Accessories 31
Repair Parts and Service 32
Warranty 32
INTRODUCTION
Safety Symbol and Signal Word Review
This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in
strict accordance with the instructions and warnings contained in this manual.
When you see these Safety Symbols and Signal Words on the
following pages, they will alert you to the possibility of serious
Mechanical
Electrical
injury or death if you do not comply with the warnings that
accompany them. The hazard may come from something
mechanical or from electric shock. Read the warnings carefully.
When you see this Signal Word 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 cautionary
statements that accompany it. Read them carefully.
2
Preparing your garage door
Pliers
Wire Cutters
Claw Hammer
Hack Saw
Screwdriver
Adjustable End Wrench
1/2" and 7/16" Sockets
and Wrench
Drill
Tape Measure
2
1
Stepladder
Pencil
3/16", 5/16" and
5/32" Drill Bits
Carpenter’s
Level (Optional)
Before you begin:
Disable locks.•
Remove any ropes connected to garage door.•
Complete the following test to make sure your garage door is •
balanced and is not sticking or binding:
Lift the door about halfway as shown. Release the door. If 1.
balanced, it should stay in place, supported entirely by its
springs.
Raise and lower the door to see if there is any binding or 2.
sticking.
If your door binds, sticks, or is out of balance, call a trained door
systems technician.
To prevent possible SERIOUS INJURY OR DEATH:
ALWAYS• call a trained door systems technician if garage
door binds, sticks, or is out of balance. An unbalanced
garage door may not reverse when required.
NEVER• try to loosen, move or adjust garage door, door
springs, cables, pulleys, brackets or their hardware, ALL of
which are under EXTREME tension.
Disable • ALL locks and remove ALL ropes connected to
garage door BEFORE installing and operating garage door
opener to avoid entanglement.
This product is for use on sectional garage doors • ONLY.
SERIOUS INJURY could result from the use of this product
on one piece garage doors.
To prevent damage to garage door and opener:
ALWAYS• disable locks BEFORE installing and operating the
opener.
ONLY• operate garage door opener at 120V, 60 Hz to avoid
malfunction and damage.
Sectional Door
Tools needed
During assembly, installation and adjustment of the opener,
instructions will call for hand tools as illustrated below.
3
Safety Reversing Sensor
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with glass panels, etc.).
See page 18 for details.
Support bracket &
fastening hardware
is required.
See page 11.
— — — — — — — —
Header Wall
Safety
Reversing
Sensor
Gap between floor and bottom
of door must not exceed 1/4"
FINISHED CEILING
Extension Spring
Torsion Spring
Access Door
OR
Slack in chain tension
is normal when
garage door is closed.
Vertical Centerline
of Garage Door
Wallmounted
Door
Control
Planning
Chain Pulley
Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Emergency
Release
Rope & Handle
Door Bracket
Garage
Door
Curved
Door
Arm
Garage
Door
Spring
Header
Wall
Chain
CLOSED POSITION
Rail
Identify the type and height of your garage door. Survey your
garage area to see if any of the conditions below apply to your
installation. Additional materials may be required. You may
find it helpful to refer back to this page and the accompanying
illustrations as you proceed with the installation of your opener.
SECTIONAL DOOR INSTALLATION
Without a properly working safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
The gap between the bottom of the garage door and the •
floor MUST NOT exceed 1/4" (6 mm). Otherwise, the safety
reversal system may not work properly.
The floor or the garage door MUST be repaired to eliminate •
the gap.
4
Straight
Door Arm
Door Bracket Plate
Door Bracket
Safety Labels
and Literature
"C" Wrap (2)
2 -Conductor Bell Wire
White & White/Red
Curved Door Arm
Rail
Styrofoam
Chain
Pulley Bracket
Trolley
Chain
Safety Reversing Sensor
Mounting Bracket
With Slot (2)
Safety Reversing Sensor
Mounting Bracket
With Square Holes (2)
Mounting Hardware
(Rail Support Bracket)
Header Bracket with
Clevis Pin and Fastener
UP
CEILING MOUNT ONLY
Lighted Door
Control Button
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Rail Support
Bracket
H
I
G
H
L
O
W
N
O
R
M
A
L
H
I
G
H
L
O
W
N
O
R
M
A
L
UP
FORCE
DOWN
FORCE
Motor Unit
Carton Inventory
Your garage door opener is packaged in two cartons which contain
the motor unit and all parts illustrated below. Accessories will
depend on the model purchased. If anything is missing, carefully
check the packing material. Parts may be stuck in the foam.
Hardware for installation is also listed below.
HARDWARE INVENTORY
Assembly Hardware
Washered Bolt, 5/16"-18x1/2" (2)
(Mounted in Opener)
To avoid installation difficulties, do not run the garage door
opener until instructed to do so.
Place the opener on packing material to protect the cover.•
Remove the (2) 5/16"-18x1/2" washered bolts mounted in the •
top of the motor unit.
Position rail at a 45˚ angle to opener so one hole in rail and •
motor unit line up.
Thread one of the washered bolts part way in.•
Use only these bolts! Use of any other bolts will cause serious
damage to door opener.
Align rail over sprocket. Cut tape from rail.•
ASSEMBLY STEP 2
Attach the Chain to the Sprocket and Install the Rail
Support Bracket
Guide the chain over chain spreader and opener sprocket. If •
necessary, loosen the outer nut on the trolley to obtain more
chain slack. Insert the second washered bolt. Use only the
bolts previously removed from opener.
Tighten both bolts securely through the rail into the opener as •
shown.
Position the rail support bracket on the opener.•
Attach the bracket to the rail with 1/4"-20x5/8" hex bolts and •
lock washers. DO NOT overtighten.
Attach the bracket to the opener by inserting a 5/16"-18x1/2" •
washered bolt through a hole in each side flange and a
matching hole in the bracket. Complete the connection by
inserting the #8-32x3/8" screw through the back flange and
the hole in rail support.
To avoid SERIOUS damage to opener, ONLY use bolts/
fasteners mounted in top of motor unit.
To avoid possible SERIOUS INJURY to fingers from moving
garage door opener:
ALWAYS keep hand clear of sprocket while operating opener.•
Securely attach rail support bracket BEFORE operating.•
Proceed to Assembly Step 3.
HARDWARE SHOWN ACTUAL SIZE
6
ASSEMBLY STEP 3
WARNING
WARNING
WARNING WARNING
Tighten the Chain
Spin the inner nut and lock washer down the threaded shaft, •
away from the trolley.
To tighten the chain, turn outer nut in the direction shown. • As
you turn the nut, keep the chain from twisting.
When the chain is approximately 1/2" (1.27 cm) above the base •
of the rail at its midpoint, re-tighten the inner nut to secure the
adjustment.
Sprocket noise can result if chain is either too loose or too
tight.
When installation is complete, you may notice some chain droop
with the door closed. This is normal. If the chain returns to the
position shown when the door is open, do not re-adjust the chain.
NOTE: During future maintenance, ALWAYS pull the emergency
release handle to disconnect trolley before adjusting chain.
You have now finished assembling your garage door opener.
Please read the following warnings before proceeding to the
installation section.
To Tighten Outer Nut
Trolley
Chain
Base of Rail
Outer Nut
Lock
Washer
1/2" (1.27 cm)
Inner Nut
To Tighten Inner Nut
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
READ AND FOLLOW ALL INSTALLATION WARNINGS AND 1.
INSTRUCTIONS.
Install garage door opener only on properly balanced and 2.
lubricated garage door. An improperly balanced door may
not reverse when required and could result in SEVERE
INJURY or DEATH.
ALL3. repairs to cables, spring assemblies and other hardware
MUST be made by a trained door systems technician
BEFORE installing opener.
Disable 4. ALL locks and remove ALL ropes connected
to garage door BEFORE installing opener to avoid
entanglement.
Install garage door opener 7 feet (2.13 m) or more above 5.
floor.
Mount emergency release handle 6 feet (1.83 m) above 6.
floor.
NEVER connect garage door opener to power source until 7.
instructed to do so.
NEVER wear watches, rings or loose clothing while installing 8.
or servicing opener. They could be caught in garage door or
opener mechanisms.
Install wall-mounted garage door control: 9.
within sight of the garage door. •
out of reach of children at minimum height of 5 feet •
(1.5 m).
away from • ALL moving parts of the door.
Install the entrapment warning placard next to the control 10.
station in a prominent location.
Place manual release/safety reverse test label in plain view 11.
on inside of garage door.
Upon completion of installation, test safety reversal system. 12.
Door MUST reverse on contact with a 1-1/2" (3.8 cm) high
object (or a 2x4 laid flat) on the floor.
7
INSTALLATION STEP 1
Determine the Header Bracket Location
To prevent possible SERIOUS INJURY or DEATH:
Header bracket • MUST be RIGIDLY fastened to structural
support on header wall or ceiling, otherwise garage door
might not reverse when required. DO NOT install header
bracket over drywall.
Concrete anchors • MUST be used if mounting header bracket
or 2x4 into masonry.
NEVER• try to loosen, move or adjust garage door, springs,
cables, pulleys, brackets, or their hardware, ALL of which are
under EXTREME tension.
ALWAYS• call a trained door systems technician if garage
door binds, sticks, or is out of balance. An unbalanced
garage door might not reverse when required.
Close the door and mark the inside vertical centerline of the 1.
garage door.
Extend the line onto the header wall above the door.2.
You can fasten the header bracket within 4 feet (1.22 m) of
the left or right of the door center only if a torsion spring
or center bearing plate is in the way; or you can attach it to
the ceiling (see page 9) when clearance is minimal. (It may
be mounted on the wall upside down if necessary, to gain
approximately 1/2" (1.27 cm).)
If you need to install the header bracket on a 2x4 (on wall or
ceiling), use lag screws (not provided) to securely fasten the
2x4 to structural supports as shown here and on page 9.
Open your door to the highest point of travel as shown. Draw 3.
an inter secting horizontal line on the header wall 2" (5 cm)
above the high point. This height will provide travel clearance
for the top edge of the door.
Header Wall
Unfinished
Ceiling
Vertical Centerline
of Garage Door
Level
(optional)
Header Wall
2x4
Ceiling
2" (5 cm)
Highest Point
of Travel
Door
2x4
OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
Structural
Supports
Track
Proceed to Step 2, page 9.
SECTIONAL DOOR WITH CURVED TRACK
8
INSTALLATION STEP 2
Lag Screw
5/16"x9x1-5/8"
Lag Screws
5/16"-9x1-5/8"
UP
Optional
UP
CEILING MOUNT ONLY
Door Spring
Header
Bracket
2x4
Structural
Support
Vertical
Centerline of
Garage Door
Vertical
Centerline of
Garage Door
Horizontal
Line
Wall Mounting Holes
Highest Point of
Garage Door Travel
Wall Mounting Holes
CEILING MOUNT ONLY
The nail hole is for positioning
only. You must use lag screws to
mount the header bracket.
Header Wall
Garage Door
UP
Ceiling Mounting Holes
CEILING MOUNT ONLY
UP
Lag Screws
5/16"-9x1-5/8"
Garage Door
– Finished Ceiling –
– Hearder Wall –
Header
Bracket
6" (15 cm)
Maximum
Door
Spring
Vertical
Centerline of
Garage Door
Vertical
Centerline of
Garage Door
The nail hole is for positioning
only. You must use lag screws
to mount the header bracket.
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. DO NOT install the
header bracket over drywall. If installing into masonry, use
concrete anchors (not provided).
WALL HEADER BRACKET INSTALLATION
Center the bracket on the vertical centerline with the bottom •
edge of the bracket on the horizontal line as shown (with the
arrow pointing toward the ceiling).
Mark the vertical set of bracket holes (do not use the holes •
designated for ceiling mount). Drill 3/16" pilot holes and fasten
the bracket securely to a structural support with the hardware
provided.
HARDWARE SHOWN ACTUAL SIZE
CEILING HEADER BRACKET INSTALLATION
Extend the vertical centerline onto the ceiling as shown.•
Center the bracket on the vertical mark, no more than 6" •
(15 cm) from the wall. Make sure the arrow is pointing toward
the wall. The bracket can be mounted flush against the ceiling
when clearance is minimal.
Mark the side holes. Drill 3/16" pilot holes and fasten bracket •
securely to a structural support with the hardware provided.
9
Header
Bracket
Chain
Pulley
Bracket
Temporary
Support
Header Wall
Garage
Door
Rail
Clevis Pin
5/16"x2-3/4"
Ring Fastener
Header Bracket
Chain
Pulley
Bracket
Rail
INSTALLATION STEP 3
Attach the Rail to the Header Bracket
Position the opener on the garage floor below the header •
bracket. Use packing material as a protective base. NOTE: If the
door spring is in the way you’ll need help. Have someone hold
the opener securely on a temporary support to allow the rail to
clear the spring.
Position the chain pulley bracket against the header bracket.•
Align the bracket holes and join with a clevis pin as shown.•
Insert a ring fastener to secure.•
HARDWARE SHOWN ACTUAL SIZE
Clevis Pin
5/16"x2-3/4"
10
Ring Fastener
Loading...
+ 22 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.