Chamberlain 248754 User Manual
GARAGE DOOR OPENER
®
®
Model 248754
For Residential Use Only
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.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
and properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number label is located on the left side panel of your opener.
®
is connected
TABLE OF CONTENTS
Introduction 2-7
Safety symbol and signal word review . . . . . . . . . . . . . . . 2
Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . 3
Tools needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Carton inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Hardware inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Assembly 8-11
Assemble the rail and install the trolley . . . . . . . . . . . . . . 8
Fasten the rail to the motor unit . . . . . . . . . . . . . . . . . . . .9
Install the idler pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Install the belt and attach the belt cap retainer . . . . . . .10
Set the tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation 11-26
Installation safety instructions . . . . . . . . . . . . . . . . . . . . 11
Determine the header bracket location . . . . . . . . . . . . .12
Install the header bracket. . . . . . . . . . . . . . . . . . . . . . . . 13
Attach the rail to the header bracket . . . . . . . . . . . . . . . 14
Position the opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Hang the opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Install the door control . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Install the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Install the lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Attach the emergency release rope and handle . . . . . .19
Electrical requirements. . . . . . . . . . . . . . . . . . . . . . . . . . 20
Install The Protector System® . . . . . . . . . . . . . . . . . 21-23
Fasten the door bracket . . . . . . . . . . . . . . . . . . . . . . 24-25
Connect the door arm to the trolley . . . . . . . . . . . . . 26-27
Adjustment 28-30
Program the travel limits . . . . . . . . . . . . . . . . . . . . . . . . 28
Setting the force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Test the safety reversal system . . . . . . . . . . . . . . . . . . . 30
Test The Protector System
®
. . . . . . . . . . . . . . . . . . . . . . 30
Operation 31-37
Operation safety instructions . . . . . . . . . . . . . . . . . . . . . 31
Using your opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Using the wall-mounted door control . . . . . . . . . . . . . . . 32
Care of your opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
To open the door manually . . . . . . . . . . . . . . . . . . . . . . 33
Battery backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Having a problem? (Troubleshooting) . . . . . . . . . . . . . . 35
Diagnostic chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Programming 37-38
To add or reprogram a hand-held remote control . . . . . 37
To erase all codes from motor unit memory . . . . . . . . . 37
3-Button remotes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
To add, reprogram or change a
Keyless Entry PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Repair Parts 39-40
Rail assembly parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Installation parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Motor unit assembly parts . . . . . . . . . . . . . . . . . . . . . . . 40
Accessories 41
Notes 42-43
Repair Parts and Service 44
Warranty 44
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
Mechanical
Electrical
possibility of serious 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
2
1
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:
1. Lift the door about halfway as shown. Release the
door. If balanced, it should stay in place, supported
entirely by its springs.
2. Raise and lower the door to see if there is any
binding or sticking.
If your door binds, sticks, or is out of balance, call a
trained door systems technician.
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.
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
One-Piece Door
Carpenter’s
Level (optional)
Drill
Tape Measure
Drill Bits
3/16", 5/16"
and 5/32"
Tools needed
During assembly, installation and adjustment of the
opener, instructions will call for hand tools as
illustrated below.
Pencil
Hack Saw
Claw Hammer
Wire Cutters
Screwdriver
Stepladder
Sockets and Wrench
1/2", 5/8", 7/16", 9/16"
and 1/4"
Pliers
Adjustable End Wrench
3
Safety Reversing Sensor
Header Wall
Access Door
— — — — — — — —
Safety
Reversing
Sensor
Gap between floor
and bottom of door
must not exceed 1/4" (6 mm).
Extension Spring
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with
glass panels, etc.). See page 24 for details.
Support bracket &
fastening hardware
is required.
See page 16.
FINISHED CEILING
Motor unit
Wallmounted
Door
Control
OR
Torsion Spring
Vertical
Centerline
of Garage Door
Planning
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.
Depending on your requirements, there are several
installation steps which may call for materials or
hardware not included in the carton.
• Installation Step 1 – Look at the wall or ceiling above
the garage door. The header bracket must be securely
fastened to structural supports.
• Installation Step 5 – Do you have a finished ceiling in
your garage? If so, a support bracket and additional
fastening hardware may be required.
• Installation Step 11 – Depending upon garage
construction, extension brackets or wood blocks may
be needed to install sensors.
• Installation Step 11 – Alternate floor mounting of the
safety reversing sensor will require hardware not
provided.
• Do you have an access door in addition to the garage
door? If not, Model 7702CB Emergency Key Release
is required. See Accessories page.
• Look at the garage door where it meets the floor. Any
gap between the floor and the bottom of the door must
not exceed 1/4" (6 mm). Otherwise, the safety reversal
system may not work properly. See Adjustment Step 3.
Floor or door should be repaired.
SECTIONAL DOOR INSTALLATIONS
• Do you have a steel, aluminum, fiberglass or glass
panel door? If so, horizontal and vertical reinforce ment
is required (Installation Step 12).
• The opener should be installed above the center of the
door. If there is a torsion spring or center bearing plate
in the way of the header bracket, it may be installed
within 4 feet (1.2 m) to the left or right of the door
center. See Installation Steps 1 and 12.
• If your door is more than 7 feet (2.1 m) high, see rail
extension kits listed on Accessories page.
SECTIONAL DOOR INSTALLATION
Header
Bracket
Garage
Door
Spring
Trolley
Stop Bolt
CLOSED POSITION
Trolley
Straight
Door
Arm
Belt
Emergency Release
Rope & Handle
Header
Wall
Garage
Door
Door
Bracket
Curved
Door
Arm
4
Planning (Continued)
ONE-PIECE DOOR INSTALLATIONS
• Generally, a one-piece door does not require
reinforcement. If your door is lightweight, refer to the
information relating to sectional doors in Installation
Step 12.
• Depending on your door’s construction, you may need
additional mounting hardware for the door bracket
(Step 12).
ONE-PIECE DOOR WITHOUT TRACK
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 16.
Header Wall
Rail
Access
Door
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
• The floor or the garage door MUST be repaired to eliminate
Wall-mounted
Door Control
floor MUST NOT exceed 1/4" (6 mm). Otherwise, the safety
reversal system may not work properly.
the gap.
Motor Unit
CLOSED POSITION
Trolley Stop Bolt
Belt
Trolley
Gap between floor
Safety Reversing Sensor
and bottom of door must not exceed 1/4" (6 mm).
ONE-PIECE DOOR WITH TRACK
Gap between floor
Safety
Reversing
Sensor
and bottom of door
must not exceed 1/4" (6 mm).
Safety Reversing
Sensor
Access
Door
Safety
Reversing
Sensor
Header
Wall
Header
Wall
Header
Bracket
Door Bracket
CLOSED POSITION
Trolley Stop Bolt
Header
Bracket
Door
Bracket
Garage
Door
Curved
Door Arm
Garage
Door
Straight
Door
Arm
Rail
Straight
Door
Arm
Belt
Trolley
Curved
Door
Arm
Emergency
Release
Rope & Handle
Rail
Emergency
Release
Rope &
Handle
5
Carton Inventory
Trolley
Your garage door opener is packaged in one carton
which contains the motor unit and all parts illustrated
below. Accessories will depend on the model purchased.
If anything is missing, carefully check the packing
Trolley
®
Battery
2-Conductor Bell Wire
White & White/Red
SECURITY✚
3-Button
Mini-Remote Control (1)
®
SECURITY✚
3-Button Remote Control (2)
material. Parts may be stuck in the foam. Hardware for
assembly and installation is shown on the next page.
Save the carton and packing material until installation
and adjustment is complete.
Idler Pulley
LOCK
LIGHT
Motion Detecting
Motion Detecting
Control Console
Door Control
Door Bracket
Belt
Rail
Front (header)
Section
Motor Unit with 2 Light Lenses
Safety Sensor
Bracket (2)
Hanging Brackets
The Protector System
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Rail
Center/Back
Sections
Belt Cap Retainer
“U” Bracket
®
Header Bracket
Curved Door
Arm Section
SECURITY✚
Keyless Entry
Safety Labels
and
Literature
®
Straight Door
Arm Section
6
Hardware Inventory
Separate all hardware and group as shown below for the assembly and installation procedures.
ASSEMBLY HARDWARE
Spring/Trolley Nut (1)
Bolt 1/4"-20x1-3/4" (2)
Carriage Bolt
1/4"-20x1/2" (2)
Lock Nut
1/4"-20 (2)
Trolley Threaded Shaft (1)
Wing Nut
1/4"-20 (2)
Lock Washer
3/8" (1)
INSTALLATION HARDWARE
Ring
Fastener (3)
Nut 5/16"-18 (8)
Master
Link (2)
Nut
3/8" (1)
Idler Bolt (1)
Handle
Lag Screw
5/16"-9x1-5/8" (2)
Lag Screw
5/16"-18x1-7/8" (2)
Self-Threading Screw
1/4"-14x5/8" (2)
Clevis Pin
5/16"x1-1/2" (1)
Hex Bolt
5/16"-18x7/8" (4)
Screw
6ABx1-1/4" (2)
Drywall Anchors (2)
Clevis Pin
5/16"x1" (1)
7
Lock Washer 5/16" (7)
Insulated
Staples (30)
Screw 6-32x1" (2)
Rope
Spacer (2)
Clevis Pin
5/16"x1-1/4" (1)
ASSEMBLY STEP 1
Front Rail
(TO DOOR)
Window
Cut-Out
Screwdriver
Idler
Pulley
Hole
Tabs
Back Rails
(TO MOTOR UNIT)
Trolley
Tapered
End
Tapered
End
Inner Trolley
Wear Pads
Outer Trolley
Tapered
End
Tapered
End
Assemble the Rail and Install the Trolley
To avoid installation difficulties, do not run the
garage door opener until instructed to do so.
The front rail has a cut out “window” at the door end
(see illustration). The hole above this window is larger
on the top of the rail than on the bottom. A smaller hole
3-1/2" (8.9 cm) away is close to the rail edge. Rotate the
back rail so it has a similar hole close to the opposite
edge, about 4-3/4" (12 cm) from the far end.
1. Remove the straight door arm and hanging bracket
packaged inside the front rail and set aside for
Installation Step 5 and 12. NOTE: To prevent INJURY
while unpacking the rail carefully remove the straight
door arm stored within the rail section.
2. Align the rail sections on a flat surface as shown and
slide the tapered ends into the larger ones. Tabs along
the side will lock into place.
To prevent INJURY from pinching, keep hands and fingers
away from the joints while assembling the rail.
3. Place the motor unit on packing material to protect
the cover, and rest the back end of the rail on top.
For convenience, put a support under the front end of
the rail.
4. As a temporary stop, insert a screwdriver into the hole
10" (25 cm) from the front end of the rail, as shown.
5. Check to be sure there are 4 plastic wear pads inside
the inner trolley. If they became loose during shipping,
check all packing material. Snap them back into
position as shown.
6. Slide the trolley assembly along the rail from the back
end to the screwdriver.
KEEP LARGER
HOLE ON TOP
FRONT RAIL
(TOP)
8
ASSEMBLY STEP 2
Motor Unit
Belt Pulley
“U” Bracket
Lock Nut
Bolts
SLIDE RAIL TO STOPS
ON TOP AND SIDES
OF BRACKET
Cover
Protection
Bolt Hole
Bolt
Idler
Pulley
Trolley
Stop Hole
Bolt
Trolley
Connector
Pulley
Rail
Bolt
Nut
Washer
Lock Washer
3/8"
Nut 3/8"
Idler
Bolt
Screwdriver
Idler Pulley
Grease
Inside Pulley
Lock
Nut
Fasten the Rail to the Motor Unit
• Insert a 1/4"-20x1-3/4 bolt into the cover protection bolt
hole on the back end of the rail as shown. Tighten
securely with a 1/4"-20 lock nut. Do not overtighten.
• Remove the two bolts from the top of the motor unit.
• Place the “U” bracket, flat side down, on the motor unit
and align the bracket holes with the bolt holes. Fasten
with the previously removed bolts.
• Align the rail assembly with the top of the motor unit.
Slide the rail end onto the “U” bracket, all the way to
the stops that protrude on the top and sides of the
bracket.
HARDWARE SHOWN ACTUAL SIZE
To avoid SERIOUS damage to garage door opener, use ONLY
those bolts/fasteners mounted in the top of the opener.
Lock Nut
Bolt 1/4"-20x1-3/4"
1/4"-20
ASSEMBLY STEP 3
Install the Idler Pulley
• Lay the belt beside the rail, as shown. Grasp the end
with the hooked trolley connector and pass
approximately 12" (30 cm) of belt through the window.
Keep the ribbed side toward the rail, and allow it to
hang until Assembly Step 5.
• Remove the tape from the idler pulley. The inside
center should be pre-greased. If dry, regrease to
ensure proper operation.
• Place the idler pulley into the window as shown.
• Insert the idler bolt from the top through the rail and
pulley. Tighten with a 3/8" lock washer and nut
underneath the rail until the lock washer is
compressed.
• Rotate the pulley to be sure it spins freely.
• Insert a 1/4"-20x1-3/4 bolt into the trolley stop hole in
the front of the rail as shown. Tighten securely with a
1/4"-20 lock nut.
Idler Bolt
HARDWARE SHOWN ACTUAL SIZE
Bolt 1/4"-20x1-3/4"
9
Lock Nut 1/4"-20
Nut 3/8"
Lock
Washer 3/8"
Trolley
Connector
Idler Pulley
Retaining
Slot
Hole
Master Link
Clip-On Spring
Master Link Cap
Trolley
Threaded
Shaft
Master
Link Bar
Pin
Notch
8x3/8" Hex Screws
Belt Cap
Retainer
ASSEMBLY STEP 4
Install the Belt and Attach the Belt Cap Retainer
1. Pull the belt around the idler pulley and toward the
trolley. The ribbed side must contact the pulley.
2. Hook the trolley connector into the retaining slot on
the trolley as shown.
3. With the trolley against the screwdriver, dispense the
remainder of the belt along the rail length toward the
motor unit and around the belt pulley. The belt pulley
teeth must engage the belt.
4. Check to make sure the belt is not twisted and the
FLAT side of the trolley threaded shaft is facing the
rail. Connect the trolley threaded shaft with the master
link, as illustrated:
• Push pins of master link bar through holes in end of
belt and trolley threaded shaft.
• Push master link cap over pins and past pin
notches.
• Slide clip-on spring over cap and onto pin notches
until both pins are securely locked in place.
5. Insert the trolley threaded shaft through the hole in
the trolley. Be sure the belt is not twisted, and the
FLAT side of the trolley threaded shaft faces the rail.
6. Hold the belt at the trolley shaft as you thread the
spring nut by hand onto the shaft until finger tight
against the trolley. Do not use any tools.
7. Remove the screwdriver.
8. Position the belt cap retainer over the motor unit belt
pulley as shown and fasten to the mounting plate with
8x3/8" hex screws provided.
Master Link
Clip-On Spring
Master Link Cap
To avoid possible SERIOUS INJURY to fingers from moving
garage door opener:
• ALWAYS keep hand clear of belt pulley while
operating opener.
• Securely attach belt pulley cover BEFORE operating.
HARD W ARE SHOWN ACTUA L SIZ E
Hex Screw 8x3/8"
Spring/ T rolley Nu t
Idler Pulley
Spring Nut
T rolle y
Connector
Retaining
Slot
10
Hole
T rolle y
Threaded
Shaft
Pin
Notch
Master
Link Bar
8x3/8" Hex Screws
Belt Cap Retainer
Motor Unit Belt Pulley
Mounting Plate
ASSEMBLY STEP 5
Nut Ring
Nut Ring
Trolley
1" 1-1/4"
BEFORE AFTER RELEASE
Nut Ring Slot
Square End
Square
End
(2.5 cm)
(3.18 cm)
WARNING
WARNING
WARNINGWARNING
Set the Tension
• Insert a screwdriver tip into one of the nut ring slots
and brace it firmly against the trolley.
• Place a 7/16" open end wrench on the square end.
Rotate the nut about 1/4 turn until the spring releases
and snaps the nut ring against the trolley.
This sets the spring to optimum belt tension.
You have now finished assembling your garage door
opener. Please read the following warnings before
proceeding to the installation section.
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 properly balanced and
lubricated garage door. An improperly balanced door may
not reverse when required and could result in SEVERE
INJURY or DEATH.
3. ALL repairs to cables, spring assemblies and other
hardware MUST be made by a trained door systems
technician BEFORE installing opener.
4. Disable ALL locks and remove ALL ropes connected to
garage door BEFORE installing opener to avoid
entanglement.
5. Install garage door opener 7 feet (2.1 m) or more
above floor.
6. Mount emergency release handle 6 feet (1.8 m)
above floor.
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 control console:
• 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.
10. Place entrapment warning label on wall next to garage
control console.
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 and battery power
BEFORE performing ANY service or maintenance.
11
INSTALLATION STEP 1
One-piece door with horizontal track
Door
Track
Header Wall
Highest Point
of Travel
2" (5 cm)
Header Wall
Vertical Centerline
of Garage Door
Level
(optional)
2x4
2x4
Structural
Supports
OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
Unfinished
Ceiling
Door
Jamb
Hardware
One-piece door without track:
jamb hardware
8" (20 cm)
Highest
Point
of Travel
Door
Pivot
8" (20 cm)
One-piece door without track:
pivot hardware
Highest
Point
of Travel
Header Wall
Header Wall
Header Wall
Sectional door with curved track
Highest Point
of Travel
Door
2" (5 cm)
Track
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.
Installation procedures vary according to garage door
types. Follow the instructions which apply to your door.
1. Close the door and mark the inside vertical centerline
of the garage door.
2. Extend the line onto the header wall above the door.
You can fasten the header bracket within 4 feet
(1.22 m) of the left or right of the door center only
if a torsion spring or center bearing plate is in the
way; or you can attach it to the ceiling (see
page 13) when clearance is minimal. (It may be
mounted on the wall upside down if necessary, to
gain approximately 1/2" (1 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 13.
3. Open your door to the highest point of travel as shown.
Draw an inter secting horizontal line on the header wall
above the high point:
• 2" (5 cm) above the high point for sectional door and
one-piece door with track.
• 8" (20 cm) above the high point for one-piece door
without track.
This height will provide travel clearance for the top
edge of the door.
NOTE: If the total number of inches exceeds the
height available in your garage, use the maximum
height possible, or refer to page 13 for ceiling
installation.
12
Lag Screws
5/16"x9x1-5/8"
– Finished Ceiling –
Door
Spring
Header Wall
UP
Ceiling Mounting Holes
6" (15 cm) Maximum
Header
Bracket
Vertical
Centerline
of Garage Door
Garage Door
Vertical Centerline
of Garage Door
INSTALLATION STEP 2
UP
Wall Mount
Optional
Mounting Holes
Lag Screws
5/16"x9x1-5/8"
Highest Point of
Garage Door Travel
Vertical
Centerline
of Garage Door
Header
Wall
Garage
Door
Door Spring
2x4
Structural
Support
Vertical
Centerline
of Garage Door
Header
Bracket
Horizontal
Line
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. Drill 3/16" pilot
holes and fasten the bracket securely to a structural
support with the hardware provided.
HARDWARE SHOWN ACTUAL SIZE
Lag Screw
5/16"-9x1-5/8"
CEILING HEADER BRACKET INSTALLATION
• Extend the vertical centerline onto the ceiling as
shown.
• Center the bracket on the vertical mark, no more than
6" (15 cm) from the wall. Make sure the arrow is
pointing away from 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.
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Opener Carton or
Temporary
Support
OPTION WITH
SOME EXISTING
INSTALLATIONS
Garage
Door
Header Bracket
Idler Pulley
Header Wall
Header
Bracket
Mounting
Hole
Existing
Header Bracket
Spacer
Mounting
Hole
Existing
Clevis Pin
Clevis Pin 5/16"x1-1/2"
Ring Fastener
INSTALLATION STEP 3
Attach the Rail to the Header Bracket
NOTE: (Optional) With some existing installations, you
may re-use the old header bracket with the two plastic
spacers included in the hardware bag. Place the spacers
inside the bracket on each side of the rail, as illustrated.
• 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 will
need help. Have someone hold the opener securely on
a temporary support to allow the rail to clear the
spring.
• Position the rail 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
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