Do-it 4500DIDM 1/2 HP User manual

GARAGE DOOR OPENER
Models • 4500DIDM 1/2 HP
• 4500DI-2DM 1/2 HP
For Residential Use Only
®
®
Owner’s Manual
■Please read this manual and the enclosed safety materials carefully!
■Fasten the manual near the garage door after installation.
■The door WILL NOT CLOSE unless the Protector System®is connected and properly aligned.
■Periodic checks of the opener are required to ensure safe operation.
■The model number label is located on the front panel of your opener.
Made exclusively for
Do It Best Corp.
Fort Wayne, Indiana

2
TABLE OF CONTENTS
When you see these Safety Symbols and Signal Words on
the following pages, they will alert you to the 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.
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.
Mechanical
Electrical
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 and
install the idler pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Install the chain/cable . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Tighten the chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation 11-27
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 light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Attach the emergency release rope and handle. . . . . . . . 18
Electrical requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Install The Protector System®. . . . . . . . . . . . . . . . . . 20-23
Fasten the door bracket. . . . . . . . . . . . . . . . . . . . . . . 24-25
Connect the door arm to the trolley . . . . . . . . . . . . . 26-27
Adjustment 28-30
Adjust the travel limits . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Adjust the force. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Test the safety reversal system. . . . . . . . . . . . . . . . . . . . 30
Test The Protector System®. . . . . . . . . . . . . . . . . . . . . . 30
Operation 31-34
Operation safety instructions . . . . . . . . . . . . . . . . . . . . . 31
Using your garage door opener . . . . . . . . . . . . . . . . . . . 31
Using the wall-mounted door control . . . . . . . . . . . . . . . 32
To open the door manually . . . . . . . . . . . . . . . . . . . . . . . 32
Care of your opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Having a problem? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Diagnostic chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Programming 35-36
To add or reprogram a hand-held remote control. . . . . . 35
To erase all codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3-button remotes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
To add, reprogram or change
a keyless entry PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Repair Parts 37-38
Rail assembly parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Installation parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Motor unit assembly parts . . . . . . . . . . . . . . . . . . . . . . . 38
Accessories 39
Repair Parts and Service 40
Warranty 40

3
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.
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.
Preparing your garage door
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.
Tools needed
During assembly, installation and adjustment of the
opener, instructions will call for hand tools as illustrated
below.
Sectional Door
One-Piece Door
Carpenter’s
Level (Optional) Tape Measure
Pencil
Wire Cutters
Hack Saw
Claw Hammer
Adjustable End Wrench
Screwdriver
Pliers
Drill
Stepladder Sockets and Wrench
1/2", 5/8", 7/16", 9/16"
and 1/4"
Drill Bits 3/16",
5/16" and 5/32"

4
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 10 – Depending upon garage
construction, extension brackets or wood blocks may
be needed to install sensors.
• Installation Step 10 – 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
reinforcement is required (Installation Step 11).
• 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 (1.22 m) to the left or right of the door
center. See Installation Steps 1 and 11.
• If your door is more than 7 feet (2.13 m) high, see rail
extension kits listed on Accessories page.
SECTIONAL DOOR INSTALLATION
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with
glass panels, etc.).
FINISHED CEILING
Slack in chain
tension is
normal when
garage door
is closed.
Support bracket &
fastening hardware
is required.
Header Wall
Extension
Spring Motor Unit
OR
Torsion
Spring
Wall-Mounted
Door Control Access
Door
Vertical
Centerline of
Garage Door
Safety
Reversing
Sensor
Safety
Reversing
Sensor
Gap between floor and
bottom of door must not
exceed 1/4" (6 mm).
Trolley
Header Bracket
Garage
Door
Spring
Chain
Emergency
Release
Rope &
Handle
Straight
Door
Arm
Curved
Door Arm
Door
Bracket
Header
Wall
Garage
Door
Rail Tab
CLOSED POSITION
See page 24 for details.
See page 16.

5
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 11.
• Depending on your door’s construction, you may need
additional mounting hardware for the door bracket
(Step 11).
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.
ONE-PIECE DOOR WITHOUT TRACK
Header Wall Rail
Gap between floor and
bottom of door must not
exceed 1/4" (6 mm).
Safety Reversing
Sensor
Safety Reversing
Sensor
Access
Door
FINISHED CEILING
Support bracket &
fastening hardware
is required.
Motor unit
Wall-mounted
Door Control
ONE-PIECE DOOR WITH TRACK
Gap between floor and
bottom of door must not
exceed 1/4" (6 mm).
Safety
Reversing
Sensor
Safety Reversing
Sensor
Access
Door
CLOSED POSITION
Header
Wall
Header Bracket
Trolley
Straight Door Arm
Emergency
Release Rope
& Handle
Door Bracket
Curved
Door Arm
Garage Door
Chain
Chain
Rail Tab
Rail
CLOSED POSITION
Header
Wall Header Bracket
Trolley
Cable
Cable
Straight Door Arm Emergency
Release Rope
& Handle
Door
Bracket
Curved
Door Arm
Garage Door
Rail Tab Rail
See page 16.

6
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 material.
Hardware for assembly and installation is shown on the
next page. Save the carton and packing material until
installation and adjustment is complete.
Carton Inventory
Lighted Door Control Button
SECURITY✚®
Single-Button
Remote Control
4500DIDM (1)
4500DI-2DM (2)
Idler Pulley
Chain Spreader
Door Bracket
Header Bracket
Motor Unit with a Light Lens
Trolley
Chain and Cable in
Dispensing Carton
2-Conductor Bell Wire
White & White/Red
Rail Front
(Header)
Section
“U” Bracket
Hanging Brackets
Curved Door
Arm Section Straight Door
Arm Section
Safety Labels
and
Literature
The Protector System®
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Reversing Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Safety Reversing
Sensor Bracket (2)
Rail
Center/Back
Sections

7
Carriage Bolt
1/4"-20x1/2" (2)
Wing Nut
1/4"-20 (2) Nut 5/16"-18 (6)Ring
Fastener (3)
Insulated Staples
(Not shown)
Lag Screw
5/16"-9x1-5/8" (4)
Hex Bolt
5/16"-18x7/8" (4) Lock Washer 5/16" (5) Self-Threading Screw
1/4"-14x5/8" (2)
Screw 6ABx1" (2)
Drywall Anchors (2) Screw 6-32x1" (2)
HandleRope
Clevis Pin
5/16"x1"
Clevis Pin
5/16"x1-1/2"
Clevis Pin
5/16"x1-1/4"
Bolt 1/4"-20x1-3/4"
Lock Washer 3/8" Nut 3/8"
Lock Nut 1/4"-20
Master
Link (2)
Trolley Threaded Shaft
Idler Bolt
Hardware Inventory
Separate all hardware and group as shown below for the assembly and installation procedures.
ASSEMBLY HARDWARE
INSTALLATION HARDWARE

8
ASSEMBLY STEP 1
Assemble the Rail & 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.
7. Slide the rail onto the “U” bracket, until it reaches all
the stops on the top and sides of the “U” bracket.
Outer Trolley
Inner Trolley
Wear Pads
“U” Bracket
Trolley
Window Cut-Out
Rail Tab
Idler
Pulley
Hole
SLIDE TO
STOPS ON TOP
AND SIDES OF
“U” BRACKET
Front Rail Section
(TO DOOR)
Back Rail Section
(TO MOTOR)
“U” Bracket

9
ASSEMBLY STEP 2
Fasten the Rail to the Motor Unit
1. 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.
2. Remove the two bolts from the top of the motor unit.
3. Use the carton to support the front end of the rail.
4. Place the “U” bracket, flat side down onto the motor
unit and align the bracket holes with the bolt holes.
Fasten the “U” bracket with the previously removed
bolts; DO NOT use any power tools. The use of power
tools may permanently damage the garage door opener.
5. Attach spreader to the motor unit with two screws.
ASSEMBLY STEP 3
Install the Idler Pulley
1. Lay the chain/cable beside the rail, as shown.
Grasp the end of the cable and pass approximately
12" (30 cm) of cable through the window. Allow it to
hang until Assembly Step 4.
2. Remove the tape from the idler pulley. The inside center
should be pre-greased. If dry, regrease to ensure proper
operation.
3. Place the idler pulley into the window as shown.
4. 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.
5. Rotate the pulley to be sure it spins freely.
6. Locate the rail tab. The rail tab is between the idler bolt
and the trolley in the front rail section. Use a flat head
screwdriver and lift the rail tab until the tab is
vertical (90°).
To avoid SERIOUS damage to garage door opener,
use ONLY those bolts/fasteners mounted in the top of
the opener.
HARDWARE SHOWN ACTUAL SIZE
Lock Nut
1/4"-20
Bolt 1/4"-20x1-3/4"
Lock Nut
“U” Bracket
Chain
Spreader
Cover
Protection
Bolt Hole
Bolts
Hex Screws
8-32x7/16"
Bolt
Lock
Washer
3/8" Nut 3/8"
Cable Link
Idler
Bolt
Chain and
Cable
Trolley
Idler
Pulley
Grease
Inside Pulley
Screwdriver
Rail
Tab
CORRECT
INCORRECT
Rail Tab
HARDWARE SHOWN ACTUAL SIZE
Lock Washer 3/8" Nut 3/8" Idler Bolt

10
Master Link
Master Link
Outer Nut
Inner Nut
Lock Washer
Threaded
Shaft
Sprocket
Leave Chain and Cable
Inside Dispensing
Carton to Prevent Kinking.
Dispensing Carton
Keep Chain and Cable
Taut When Dispensing
To avoid possible SERIOUS INJURY to fingers from
moving garage door opener:
• ALWAYS keep hand clear of sprocket while
operating opener.
• Securely attach chain spreader BEFORE operating.
ASSEMBLY STEP 4
Install the Chain/Cable
1. Pull the cable around the idler pulley and toward the
trolley.
2. Connect the cable to the retaining slot on the trolley, as
shown (Figure 1):
• From below, push pins of master link bar up
through cable link and trolley slot.
• 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.
3. With the trolley against the screwdriver, dispense the
remainder of the cable/chain along the rail toward the
motor unit into the slot on the chain spreader, around
the sprocket onto the chain spreader and continuing to
the trolley assembly. The sprocket teeth must engage
the chain (Figure 2).
4. Check to make sure the chain is not twisted, then
connect it to the threaded shaft with the remaining
master link.
5. Thread the inner nut and lock washer onto the trolley
threaded shaft (Figure 3).
6. Insert the trolley threaded shaft through the hole in the
trolley. Be sure the chain is not twisted (Figure 3).
7. Loosely thread the outer nut onto the trolley
threaded shaft.
8. Remove the screwdriver.

11
INSTALLATION
ASSEMBLY STEP 3
Tighten the Chain
1. Spin the inner nut and lock washer down the trolley
threaded shaft, away from the trolley.
2. To tighten the chain, turn outer nut in the direction
shown (Figure 1).
3. When the chain is approximately 1/4" (6 mm) 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 too loose.
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 in Figure 2 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.
NOTE: You may notice loosening of chain after Adjustment
Step 3 (Test the Safety Reversal System). Check for
proper tension and readjust chain if necessary. Then
repeat Adjustment Step 3.
You have now finished assembling your garage door
opener. Please read the following warnings before
proceeding to the installation section.
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNINGWARNING
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 (2.13 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:
• 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 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.
Figure 1
Figure 2
To Tighten Outer Nut
Mid length of RailBase of Rail
Chain
1/4" (6 mm)
To Tighten
Inner Nut
Outer
Nut Lock
Washer
Trolley
Threaded
Shaft
Inner Nut

12
INSTALLATION STEP 1
Determine the Header Bracket Location
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 intersecting 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.
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.
Unfinished
Ceiling
Header Wall
Vertical Centerline
of Garage Door
2x4
2x4 Structural
Supports
Level
(Optional)
Header Wall Header Wall
2" (5 cm)
2" (5 cm)
Highest
Point of
Travel Highest
Point of
Travel
Highest
Point of
Travel
Highest
Point of
Travel
Track Track
Header Wall
8" (20 cm) 8" (20 cm)
Header Wall
Door
Door
Door
Jamb
Hardware
Door
Pivot
Sectional door with
curved track
One-piece door without track:
jamb hardware
One-piece door with
horizontal track
One-piece door without track:
pivot hardware
OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET

13
INSTALLATION STEP 2
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
1. 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).
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.
CEILING HEADER BRACKET INSTALLATION
1. Extend the vertical centerline onto the ceiling as shown.
2. 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.
3. Mark the side holes. Drill 3/16" pilot holes and fasten
bracket securely to a structural support with the
hardware provided.
Header
Bracket
2x4
Structural
Support
Vertical
Centerline
of Garage
Door
Lag Screws
5/16"-9x1-5/8"
Vertical Centerline
of Garage Door
Door Spring
Highest Point
of Garage
Door Travel
Horizontal
Line
- Header Wall -
Wall Mount
Optional Mounting Holes
- Garage Door -
HARDWARE SHOWN ACTUAL SIZE
Ceiling Mounting Holes Door
Spring
6" (15 cm) Maximum
Lag Screws
5/16"-9x1-5/8"
Header
Bracket
Vertical
Centerline of
Garage Door
Vertical
Centerline of
Garage Door
Garage Door
- Header Wall -
- Finished Ceiling -
Lag Screw
5/16"-9x1-5/8"

14
INSTALLATION STEP 3
Attach the Rail to the Header Bracket
1. 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.
2. Position the rail bracket against the header bracket.
3. Align the bracket holes and join with a clevis pin
5/16"x1-1/2" as shown.
4. Insert a ring fastener to secure.
Header Wall
Header Bracket
Idler Pulley Header Bracket
Mounting Hole
Garage Door
Temporary Support
HARDWARE SHOWN ACTUAL SIZE
Clevis Pin 5/16"x1-1/2" Ring Fastener

15
ONE-PIECE DOOR WITHOUT TRACK
A 2x4 on its side is convenient for setting an ideal
door-to-rail distance.
1. Raise the opener onto a stepladder. You will need help
at this point if the ladder is not tall enough.
2. Open the door all the way and place a 2x4 on its side
on the top section of the door beneath the rail.
3. The top of the door should be level with the top of the
motor unit. Do not position the opener more than
4" (10 cm) above this point.
INSTALLATION STEP 4
Position the Opener
Follow instructions which apply to your door type as
illustrated.
SECTIONAL DOOR OR ONE-PIECE DOOR WITH
TRACK
A 2x4 laid flat is convenient for setting an ideal
door-to-rail distance.
1. Raise the opener onto a stepladder. You will need help
at this point if the ladder is not tall enough.
2. Open the door all the way and place a 2x4 laid flat on
the top section beneath the rail.
3. If the top section or panel hits the trolley when you
raise the door, pull down on the trolley release arm to
disconnect inner and outer sections. Slide the outer
trolley toward the motor unit. The trolley can remain
disconnected until Installation Step 12 is completed.
To prevent damage to garage door, rest garage door
opener rail on 2x4 placed on top section of door.
Rail
Door 2x4 is used to determine
the correct mounting height
from ceiling.
2x4 is used to determine
the correct mounting height
from ceiling.
Header Bracket
RELEASED
Trolley
Release Arm
ENGAGED
Top of Door

16
INSTALLATION STEP 5
Hang the Opener
Three representative installations are shown. Yours may
be different. Hanging brackets should be angled
(Figure 1) to provide rigid support. On finished ceilings
(Figure 2 and Figure 3), attach a sturdy metal bracket
to structural supports before installing the opener. This
bracket and fastening hardware are not provided.
1. Measure the distance from each side of the motor unit
to the structural support.
2. Cut both pieces of the hanging bracket to required
lengths.
3. Drill 3/16" pilot holes in the structural supports.
4. Attach one end of each bracket to a support with
5/16"-9x1-5/8" lag screws.
5. Fasten the opener to the hanging brackets with
5/16"-18x7/8" hex bolts, lock washers and nuts.
6. Check to make sure the rail is centered over the door
(or in line with the header bracket if the bracket is not
centered above the door).
7. Remove the 2x4. Operate the door manually. If the
door hits the rail, raise the header bracket.
NOTE: DO NOT connect power to opener at this time.
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.
Structural Supports
Lag Screws
5/16"-9x1-5/8"
Measure
Distance
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Lag Screws
5/16"-9x1-5/8"
Hidden
Support
Bracket
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Lag Screws
5/16"-9x1-5/8"
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Figure 3
FINISHED CEILING
Figure 2
FINISHED CEILING
Figure 1
HARDWARE SHOWN ACTUAL SIZE
Lock Washer
5/16"
Nut
5/16"-18
Hex Bolt
5/16"-18x7/8"
Lag Screws 5/16"-9x1-5/8"

17
To prevent possible SERIOUS INJURY or DEATH from
electrocution:
• Be sure power is NOT connected BEFORE installing
door control.
• Connect ONLY to 24 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a
closing garage door:
• Install door control within sight of garage door, out of
reach of children at a minimum height of 5 feet
(1.5 m), and away from ALL moving parts of door.
• NEVER permit children to operate or play with door
control push buttons or remote control transmitters.
• Activate door ONLY when it can be seen clearly, is
properly adjusted, and there are no obstructions to
door travel.
• ALWAYS keep garage door in sight until completely
closed. NEVER permit anyone to cross path of closing
garage door.
INSTALLATION STEP 6
Install the Door Control
Locate 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 all moving parts of the door
and door hardware.
1. Strip 7/16" (11 mm) of insulation from one end of the
bell wire. Connect it to the two screw terminals on the
back of the door control by color: white wire to 2 and
white/red wire to 1.
2. Fasten the Lighted Door Control Button securely
with 6ABx1" screws. If installing into drywall,
drill 5/32" (4 mm) holes and use the anchors provided.
3. 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, creating a short or open circuit.
4. Receiver terminals and the antenna are located on the
back panel of the motor unit. Position the antenna wire
as shown.
NOTE: When connecting multiple door controls to the
opener, twist same color wires together. Insert wires into
quick-connect holes: white to white and red/white to red.
5. Strip 7/16" (11 mm) of insulation from end of bell wire.
Connect bell wire to the quick-connect terminals as
follows: white to white and white/red to red.
6. Use tacks or staples to permanently attach entrapment
warning label to wall near door control, and manual
release/safety reverse test label in a prominent location
on inside of garage door.
NOTE: DO NOT connect the power and operate the opener
at this time. The trolley will travel to the full open position
but will not return to the close position until the sensor
beam is connected and properly aligned. See Safety
Reversing Sensor Instructions beginning on page 20.
HARDWARE SHOWN ACTUAL SIZE
Screw 6ABx1"
Insulated Staples
(not shown)
Drywall Anchors
Door Control
Connections
To release or insert
wire, push in tab
with screwdriver tip
White Grey
Red
Strip wire 7/16" (11 mm)
Quick-Connect Terminals
7/16"
(11 mm)
Bell Wire
Bell Wire
Lighted Door
Control Button
Terminal Screws
Lighted Door
Control Button
Back Panel
Antenna

18
INSTALLATION STEP 7
Install the Light
1. Press the release tabs on both sides of lens. Gently
rotate lens back and downward until the lens hinge is
in the fully open position. Do not remove the lens.
2. Install up to a 100 watt maximum light bulb in the
socket. Light bulb size should be A19, standard
neck only. The light will turn ON and remain lit
for approximately 4-1/2 minutes when power is
connected. Then the light will turn OFF.
3. Reverse the procedure to close the lens.
4. Use A19, standard neck garage door opener bulbs for
replacement.
NOTE: Use only a standard light bulb. The use of a short
neck or speciality light bulb may overheat the endpanel or
light socket.
INSTALLATION STEP 8
Attach the Emergency Release Rope and
Handle
1. Insert one end of the emergency release rope through
the handle. Make sure that “NOTICE” is right side up.
Tie a knot at least 1 inch (2.5 cm) from the end of the
emergency release rope.
2. Insert the other end of the emergency release rope
through the hole in the trolley release arm. Mount
the emergency release within reach, but at least 6
feet (1.83 m) above the 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.
To prevent possible OVERHEATING of the endpanel or
light socket:
• DO NOT use short neck or specialty light bulbs.
• DO NOT use halogen bulbs. Use ONLY incandescent.
To prevent damage to the opener:
• DO NOT use bulbs larger than 100W.
• ONLY use A19 size bulbs.
To prevent possible SERIOUS INJURY or DEATH from
a falling garage door:
• If possible, use emergency release handle to
disengage trolley ONLY when garage door is
CLOSED. Weak or broken springs or unbalanced
door could result in an open door falling rapidly and/
or unexpectedly.
• NEVER use emergency release handle unless garage
doorway is clear of persons and obstructions.
• NEVER use handle to pull door open or closed. If
rope knot becomes untied, you could fall.
100 Watt (Max)
Standard Light Bulb
Release Tab
Lens Hinge
Emergency
Release Handle
Trolley
Trolley
Release arm
Overhand Knot

19
INSTALLATION STEP 9
Electrical Requirements
To avoid installation difficulties, do not run the opener
at this time.
To reduce the risk of electric shock, your garage door
opener has a grounding type plug with a third grounding
pin. This plug will only fit into a grounding type outlet.
If the plug doesn’t fit into the outlet you have, contact a
qualified electrician to install the proper outlet.
If permanent wiring is required by your local code, refer
to the following procedure.
To make a permanent connection through the 7/8" hole in
the top of the motor unit:
1. Remove the motor unit cover screws and set the cover
aside.
2. Remove the attached 3-prong cord.
3. Connect the black (line) wire to the screw on the brass
terminal; the white (neutral) wire to the screw on
the silver terminal; and the ground wire to the green
ground screw. The opener must be grounded.
4. Reinstall the cover.
To avoid installation difficulties, do not run the opener
at this time.
To prevent possible SERIOUS INJURY or DEATH from
electrocution or fire:
• Be sure power is NOT connected to the opener, and
disconnect power to circuit BEFORE removing cover
to establish permanent wiring connection.
• Garage door installation and wiring MUST be in
compliance with ALL local electrical and building
codes.
• NEVER use an extension cord, 2-wire adapter, or
change plug in ANY way to make it fit outlet. Be sure
the opener is grounded.
RIGHT WRONG
PERMANENT WIRING
CONNECTION
Ground
Tab
Black
Wire
Black
Wire
White
Wire
White
Wire
Green
Ground
Screw
Ground
Wire

20
INSTALLATION STEP 10
Install The Protector System®
The safety reversing sensor must be connected and
aligned correctly before the garage door opener will
move in the down direction.
IMPORTANT INFORMATION ABOUT THE SAFETY
REVERSING SENSOR
When properly connected and aligned, the sensor will
detect an obstacle in the path of its electronic beam.
The sending eye (with an amber indicator light) transmits
an invisible light beam to the receiving eye (with a green
indicator light). If an obstruction breaks the light beam
while the door is closing, the door will stop and reverse
to full open position, and the opener lights will flash
10 times.
The units must be installed inside the garage so that the
sending and receiving eyes face each other across the
door, no more than 6" (15 cm) above the floor. Either can
be installed on the left or right of the door as long as the
sun never shines directly into the receiving eye lens.
The mounting brackets are designed to clip onto the track
of sectional garage doors without additional hardware.
Be sure power is NOT connected to the garage door
opener BEFORE installing the safety reversing sensor.
To prevent SERIOUS INJURY or DEATH from a
closing garage door:
• Correctly connect and align the safety reversing
sensor. This required safety device MUST NOT be
disabled.
• Install the safety reversing sensor so beam is NO
HIGHER than 6" (15 cm) above garage floor.
Facing the door from inside the garage
Safety Reversing Sensor
6" (15 cm) max. above floor Safety Reversing Sensor
6" (15 cm) max. above floor
Invisible Light Beam
Protection Area
If it is necessary to mount the units on the wall, the
brackets must be securely fastened to a solid surface such
as the wall framing. Extension brackets (see accessories)
are available if needed. If installing in masonry
construction, add a piece of wood at each location to
avoid drilling extra holes in masonry if repositioning is
necessary.
The invisible light beam path must be unobstructed. No
part of the garage door (or door tracks, springs, hinges,
rollers or other hardware) may interrupt the beam while
the door is closing.