Sears Garage Door Opener 13918847 User Guide

OWNER’S  
MANUAL  
Model No.  
139.18847  
139.18857  
®
GARAGE DOOR OPENER  
1/2 HP  
For Residential Use  
Only  
Safety Precautions  
Assembly  
Caution:  
Read and follow all  
safety rules and  
operating instructions  
before first use of this  
product.  
Installation  
Adjustment  
Care and Maintenance  
Operation  
Troubleshooting  
Parts List  
Fasten the manual  
near the garage door  
after installation.  
®
Sears Canada, Inc., Toronto, Ontario M5B 2B8  
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Contents  
Page  
Contents  
Page  
A review of safety alert symbols.................................2  
You'll need tools..........................................................3  
Install the lights and lenses......................................19  
Attach emergency release rope and handle ...........19  
Electrical requirements.............................................20  
Safety reversing sensor information ........................21  
Install the safety reversing sensor .....................22, 23  
Fasten door bracket (sectional door).......................24  
Fasten door bracket (one-piece door) .....................25  
Connect door arm to trolley (sectional door) ...........26  
Connect door arm to trolley (one-piece door)..........27  
Adjustment section - pages 28 – 30  
Safety information regarding garage door  
locks and ropes.........................................................3  
Testing your garage door for sticking,  
binding and balance..................................................3  
Illustration of sectional door installation .....................4  
Illustration of one-piece door installation....................5  
Carton inventory..........................................................6  
Hardware inventory.....................................................7  
Assembly section - pages 8 – 11  
Travel limit adjustments ...........................................28  
Force adjustments....................................................29  
Test the safety reversing sensor..............................30  
Test the safety reverse system ...............................30  
Operation safety instructions .....................................31  
Care of your opener ...................................................31  
Maintenance schedule ...............................................31  
Operation of your opener ...........................................32  
Receiver and remote control programming...............33  
Having a problem?...............................................34, 35  
Repair parts, rail assembly.........................................36  
Repair parts, installation.............................................36  
Repair parts, opener assembly..................................37  
Accessories ................................................................38  
Index...........................................................................39  
How to order repair parts ...........................................40  
Maintenance agreement ............................................40  
Warranty.....................................................................40  
Assemble T-rail.........................................................8  
Attach cable pulley bracket.......................................8  
Install trolley ..............................................................9  
Fasten T-rail to opener .............................................9  
Install chain/cable ...................................................10  
Attach sprocket cover .............................................10  
Tighten the chain and cable ...................................11  
Installation section - pages 11 – 27  
Installation safety instructions.................................11  
Determine header bracket location  
Sectional door......................................................12  
One-piece door ....................................................13  
Install the header bracket .......................................14  
Attach the T-rail to header bracket.........................15  
Position the opener.................................................16  
Hang the opener.....................................................17  
Install the door control ............................................18  
Start by Reviewing these Important Safety Alert Symbols  
When you see these Safety Symbols on the following pages, they will alert you to the possibility of  
serious injury or death if you do not comply with the corresponding instructions. The hazard may  
come from something mechanical or from electric shock. Read the instructions carefully.  
WARNING  
WARNING  
Mechanical  
Electrical  
When you see this Safety Symbol on the following pages, it will alert you to the possibility of damage  
to your garage door and/or the garage door opener if you do not comply with the corresponding  
instructions. Read the instructions carefully.  
CAUTION  
This garage door opener is designed and tested to offer safe service provided it is installed, operated,  
maintained and tested in strict accordance with the safety instructions contained in this manual.  
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You'll Need Tools  
During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below.  
Pencil  
Carpenter's  
Level  
Hack Saw  
2
1
Tape Measure  
Wire Cutters  
Claw Hammer  
Drill  
3/16", 5/16", and  
5/32" Drill Bits  
Pliers  
Stepladder  
Adjustable End Wrench  
Screwdriver  
1/2" and 7/16" Sockets  
and Wrench  
CAUTION  
WARNING  
To avoid damage to the garage door and  
opener, disable locks before installing and  
operating the opener. Use a wood screw or nail  
to hold locks in the "open" (unlocked)  
position.  
Operation at other than 120V 60 Hz will cause  
opener malfunction and damage.  
An unbalanced garage door might not reverse  
when required and someone under the door  
could be seriously injured or killed.  
If your garage door binds, sticks or is out of  
balance, call for professional garage door  
service. Garage doors, door springs, cables,  
pulleys, brackets and their hardware are under  
extreme tension and can cause serious injury  
or death. Do not try to loosen, move or adjust  
them yourself!  
Ropes left on a garage door could cause  
someone to become entangled and killed.  
Remove all ropes connected to the door before  
installing and operating the opener.  
Before you begin, complete the following test to  
make sure your door is balanced, and is not  
sticking or binding:  
• Lift the door about halfway as shown. Release the  
door. It should stay in place, supported entirely by  
its springs.  
Identify the type and height of your door and any  
special conditions that exist and any additional  
materials that may be required by referring to the lists  
on page 4 or page 5.  
• Raise and lower the door to see if there is any  
binding or sticking.  
ONE-PIECE DOOR  
SECTIONAL DOOR  
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SECTIONAL Door Installation  
Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.  
FINISHED CEILING  
Support bracket &  
fastening hardware  
is required.  
Horizontal and vertical reinforcement  
is needed for lightweight garage doors  
(fiberglass, steel, aluminum, door with glass panels, etc.).  
See page 24 for details.  
See page 17.  
Slack in Chain Tension  
is Normal When  
Garage Door is Closed  
Header Wall  
Extension Spring  
OR  
Torsion Spring  
Door Center  
Access Door  
Safety  
Reversing  
Sensor  
Floor must be level  
across width of door  
Header Cable Pulley  
Closed Position  
Bracket  
Bracket  
Safety Reversing Sensor  
Trolley  
Rail Assembly  
Cable  
Based on your particular requirements, there are  
several installation steps which might call for  
materials and/or hardware not included in the carton.  
Garage  
Door  
Spring  
Emergency  
Release  
Rope & Handle  
• Step 1, page 12 - Look at the wall or ceiling above  
the garage door. The header bracket must be  
securely fastened to structural supports.  
Straight  
Door  
Arm  
You may find it  
helpful to refer  
back to this page  
as you proceed  
with the installation  
of your opener.  
• Step 5, page 17 - Do you have a finished ceiling in  
your garage? If so, a support bracket and  
additional fastening hardware may be required.  
Curved  
Door  
Arm  
Header  
Wall  
Door Bracket  
• Safety reversing sensor, page 21 - Depending  
upon garage construction, wood blocks may need  
to be fastened to mounting locations before  
sensors are installed.  
Garage  
Door  
• If your door is more than 7 feet high, see the rail  
extension kits available on page 38.  
• Step 10, page 22 - Alternate floor mounting of the  
safety reversing sensor will require hardware not  
provided.  
• The opener can be installed within 2 feet to the left  
or right of the door center if there is a torsion spring  
or center bearing plate in the way of the header  
bracket or door bracket area. If your door has  
extension springs, the opener must be installed  
in the center of the door. See pages 12 and 24.  
• Step 11, page 24 - Do you have a steel, aluminum,  
fiberglass or glass panel door? If so, horizontal  
and vertical reinforcement is required.  
Look at the garage door where it meets the  
floor. It must close on the floor all the way  
across. Otherwise, the safety reverse system  
may not work properly. See page 30. Floor or  
door should be repaired.  
• Do you have an access door in addition to the  
garage door? If not, Model 18752 Outside  
Trolley Release is required. See page 38.  
4
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One-Piece Door without Track  
ONE-PIECE Door Installation  
Before you begin, survey your garage area to see  
whether any of the conditions below apply to your  
installation.  
FINISHED CEILING  
Support bracket  
& fastening hardware  
may be required.  
See page 17.  
Slack in Chain Tension  
is Normal When  
Garage Door is Closed  
Header  
Wall  
Closed Position  
Cable  
Pulley Bracket  
Trolley  
Access Door  
Cable  
Header  
Bracket  
T-rail  
Door Bracket  
Emergency  
Release  
Rope & Handle  
Curved  
Door  
Arm  
Straight  
Door  
Arm  
Header  
Wall  
Garage  
Door  
Safety  
Reversing  
Sensor  
Gap between floor and bottom of  
door must not exceed 1/4"  
Safety  
Reversing Sensor  
Based on your particular requirements, there are  
One-Piece Door with Track  
several installation steps which might call for materials  
and/or hardware not included in the carton.You may  
want to review these steps before beginning:  
Slack in Chain  
Tension is Normal  
When Garage Door is Closed  
• Step 1, page 13 - Look at the wall or ceiling above  
the garage door. The header bracket must be  
securely fastened to structural supports.  
• Step 5, page 17 - Do you have a finished ceiling in  
your garage? If so, a support bracket and additional  
fastening hardware (not supplied) may be required.  
Access  
Door  
• Safety reversing sensor, page 21 - Depending on  
garage construction, wood blocks may need to be  
securely fastened to mounting locations before  
sensors are installed.  
• Step 10, page 22 - Alternate floor mounting of the  
safety reversing sensor will require hardware that  
is not provided.  
Safety  
Reversing  
Sensor  
Floor must be level  
across width of door  
Safety  
Reversing Sensor  
• Step 11, page 25 - Generally, a one-piece door  
does not require reinforcement. If your door is  
lightweight, you can refer to the information  
relating to sectional doors on page 24.  
Closed Position  
Cable  
Chain  
Pulley Bracket  
Trolley  
Cable  
• Step 11, page 25 - Depending on your door's  
construction, you might need additional mounting  
hardware for the door bracket.  
Header  
Wall  
Curved  
Door Arm  
Header  
Bracket  
T-Rail  
• Do you have an access door in addition to the  
garage door? If not, Model 18752 Outside Trolley  
Release is required. See page 38.  
The gap between the bottom of the garage  
door and the floor cannot exceed 1/4".  
Otherwise, the safety reverse system may not  
work properly. See page 30. The floor or the door  
should be repaired.  
Emergency  
Release  
Rope & Handle  
Straight  
Door  
Arm  
Garage  
Door  
Door  
Bracket  
You may find it helpful to refer back to this page  
as you proceed with the installation of your  
5
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Opener Carton Inventory  
Your garage door opener is packaged in two cartons which contain all parts illustrated below. If anything is  
missing, carefully check the packing material. Parts may be "stuck" in the foam. Hardware for assembly and  
installation is shown on page 7.  
Security✚  
Three-Function Remote Control  
with Visor Clip (2)  
Cable  
Pulley Bracket  
Standard Control Console  
Trolley  
2-Conductor  
Bell Wire  
White & White/Red  
T-Rail  
Center Section  
CEILING MOUNT ONLY  
UP  
Header Bracket  
T-Rail  
End Sections  
TO GARAGE DOOR  
Light Lens  
Door Bracket  
Sprocket Cover  
"C" Wrap (2)  
Chain and Cable  
in Dispensing Carton  
Safety Reversing Sensor  
Mounting Bracket  
With Square Holes (2)  
Hanging Brackets  
(2) Safety Reversing Sensors  
(1 Sending Eye and 1 Receiving Eye)  
Safety Labels  
and  
Literature  
with  
2-Conductor White & White/Black Bell Wire  
attached  
Safety Reversing Sensor  
Mounting Bracket  
With Slot (2)  
Curved Door  
Arm Section  
Straight Door  
Arm Section  
6
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Group all hardware found in all packages contained in the rail and opener cartons into  
the three kits illustrated below.  
Assembly Hardware Kit 41A3534  
Hex Screw  
5/16"-18x7/8" (3)  
Nut  
5/16"-18 (5)  
Washered Screw  
5/16"-18x1/2" (2)  
(mounted in opener)  
Carriage Bolts  
1/4"-20x1/2" (4)  
Master Link (2)  
Lock Nut  
1/4"-20x7/16" (4)  
Lock Washer  
5/16" (4)  
Trolley  
Threaded Shaft (1)  
Installation Hardware Kit 41A3475-4  
NOTICE  
Lag Screw  
5/16"-9x1-5/8" (2)  
Rail Grease  
Hex Screw  
5/16"-18x7/8" (4)  
Handle  
Lag Screw  
5/16"-18x1-7/8" (2)  
Ring  
Lock Washer 5/16" (6)  
Nut 5/16"-18 (6)  
Fastener (3)  
Rope  
Screw  
6ABx1" (2)  
Carriage Bolt  
5/16"-18x2-1/2" (2)  
Dry Wall Anchors (2)  
Clevis Pin  
5/16"x2-3/4" (1)  
Insulated  
Staples (10)  
Clevis Pin  
5/16"x1-1/4" (1)  
Clevis Pin  
5/16"x1" (1)  
Safety Reversing Sensor  
Installation Hardware Kit 41A4116  
Lag Screw  
1/4x1-1/2" (4)  
Wing Nut (2)  
Lock Nut  
1/4"-20 (4)  
Carriage Bolts  
1/4"-20x1/2" (4)  
Lock Nut  
#10x32 (4)  
Insulated  
Staples (20)  
Hex Screw  
1/4-20x1-1/2" (2)  
Screw  
#10-32x3/8" (4)  
7
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Assembly Section: Pages 8 – 11  
To avoid installation difficulties, do not run the garage door opener until instructed to do so.  
Make sure bolt necks are  
seated in the square  
holes and rails are  
aligned before you  
tighten lock nuts. (See  
right and wrong views).  
Improper assembly can  
Assembly Step 1  
Assemble the T-rail & Attach  
the Cable Pulley Bracket  
cause jerky trolley  
operation, noise and/or  
nuisance door reversals.  
• Align the 3 T-rail sections on a flat surface exactly  
Right  
Wrong  
as shown. The end sections are identical. Make  
sure the "arrow label" on the center section is  
pointing toward the door.  
• Insert the carriage bolts so the square bolt necks  
seat in the square holes in the T-rail end sections  
and pass through the round holes in T-rail center  
section. Assemble lock nuts, ensure alignment and  
T-RAIL BACK  
(TO OPENER)  
T-rail  
(End Section)  
tighten.  
1/4'' Lock Nut  
Lock Washer  
Nut  
5/16"  
5/16"  
Brace  
If T-rail is not assembled  
EXACTLY as shown,  
trolley will not travel  
T-rail  
(Center Section)  
Carriage Bolt  
1/4"-20x1/2"  
smoothly along length of  
rail or it will hit against  
the nuts.  
Brace  
TO GARAGE DOOR  
T-rail  
(End Section)  
Hex Screws  
5/16"-18x7/8"  
Cable pulley bracket  
attaches to FRONT  
END of T-rail  
Cable Pulley  
Bracket  
Square Carriage  
Bolt Holes  
T-RAIL FRONT  
(TO DOOR)  
Lock Washer  
5/16"  
Nut  
5/16"  
• Position the cable pulley bracket on the front end of the  
T-rail as shown. Fasten securely with the hardware.  
Hardware Shown Actual Size  
When tightening  
the screws, be  
sure to keep  
Carriage Bolts  
1/4" - 20 x 1/2"  
Lock Nut  
1/4" - 20 x 7/16"  
bracket parallel  
to the rail.  
Otherwise, the  
rail may bow  
when opener is  
Right  
Wrong  
Hex Screw  
5/16" - 18 x 7/8"  
Lockwasher  
5/16"  
Nut  
5/16" - 18  
operated.  
8
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Hardware Shown  
Actual Size  
Assembly Step 2  
Install the Trolley on the T-rail  
• Attach the threaded shaft to the trolley with the  
lock washer and nuts as shown.  
Trolley  
Lock Washer  
5/16"  
Nut  
5/16"-18  
Lock Washer  
5/16"  
Outer Nut  
Trolley  
5/16"  
Threaded Shaft  
Inner Nut  
5/16"  
Trolley  
TO GARAGE DOOR  
Temporary Stop  
Screwdriver  
As a temporary stop, insert a screwdriver into the  
hole in the front end of the T-rail.  
• Slide the trolley assembly along the rail to the  
screwdriver stop.  
If trolley hits against any nuts on the T-rail, the  
bolts and nuts were attached from the wrong  
side and must be repositioned. Review Step 1.  
Assembly Step 3  
Fasten the T-rail to the Opener  
CAUTION  
To fasten rail, use only those screws mounted  
in the top of the opener. Any other screws will  
cause serious damage to the opener.  
Place the opener on packing material to protect  
the cover. For convenience, put a support under  
the cable pulley bracket.  
• Remove the (2) 5/16"-18x1/2" washered screws  
mounted in the top of the opener.  
Washered Screw  
5/16"-18x1/2"  
Use Only This  
• Align the holes in the back section of the T-rail with  
the holes in the opener.  
Type and Size  
Hex Screw  
Screw  
5/16"-18x7/8"  
• Fasten the rail with the (2) washered screws  
previously removed. Tighten securely.  
Cover  
Protection  
Bolt Hole  
Remember to use only these screws! Any other  
screws will cause serious damage to the opener.  
T-rail  
(Back Section)  
• Insert a 5/16"-18x7/8" hex screw into the cover  
protection bolt hole in the T-rail as shown. Tighten  
securely with a 5/16" lock washer and nut.  
Lock Washer  
5/16"  
Nut  
5/16"-18  
NOTE: This screw prevents trolley over-travel.  
Keep a 2" minimum between the trolley and this  
screw when adjusting travel limits (see page 28).  
Hardware Shown Actual Size  
Hex Screw  
5/16"-18x7/8"  
Lock Washer  
5/16"  
Nut  
5/16"-18  
9
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Assembly Step 4  
WARNING  
Install the Chain/Cable &  
Attach the Sprocket Cover  
Serious injury can result if fingers become  
entangled in moving opener sprocket. Attach  
sprocket cover securely. Never operate opener  
while your hand is near the opener sprocket.  
Dispensing Carton  
Opener  
Sprocket  
Leave Chain and Cable  
Inside Dispensing  
Carton to Prevent Kinking.  
Keep Chain and Cable  
Taut When Dispensing  
• Detach the cable loop from the carton and fasten it  
to the trolley with a master link from the hardware  
bag. See master link procedure, Figure 1.  
• With the trolley against the screwdriver, dispense  
the cable around the pulley.  
Figure 3  
Master Link  
Clip-On Spring  
• Proceed back around the opener sprocket,  
Figure 2. Be sure sprocket teeth engage the chain.  
Continue forward to the trolley threaded shaft,  
Figure 3.  
Master  
Link Cap  
Master Link  
Clip-On Spring  
Flat End  
of Trolley  
Threaded Shaft  
• Use the second master link to connect the  
chain to the flat end of the shaft. Check  
to make sure the chain is not  
twisted.  
Master  
Link Cap  
Chain  
T-rail  
Remove the screwdriver.  
Cable  
Loop  
Pin Notch  
Pin  
Trolley  
Master  
Link Bar  
Cable  
Pulley  
Figure 1  
Master Link Procedure:  
Install Chain and Cable  
In This Direction  
Push pins of master link bar  
through cable loop and hole in  
front end of trolley. Push cap  
over pins and past notches.  
Slide clip-on spring over cap  
and into notches until both  
pins are securely locked.  
Sprocket  
Cover  
Back Tab Slot  
Top of Opener  
To attach the sprocket cover:  
Insert the back tab in the opener slot. Squeeze the  
cover slightly and insert the front tab in the slot on  
the mounting plate.  
Front Tab Slot  
Mounting  
Plate  
10  
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Assembly Step 5  
Tighten the Chain & Cable  
Lock  
Washer  
Inner Nut  
Outer Nut  
To Tighten Outer Nut  
• 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.  
To Tighten  
Inner Nut  
• When the chain is approximately 1/2" above the  
base of the T-rail at its midpoint, re-tighten the  
inner nut to secure the adjustment.  
Trolley  
Sprocket noise can result if chain is either too  
loose or too tight.  
Chain  
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.  
1/2"  
NOTE: During future maintenance, ALWAYS  
pull the emergency release handle to disconnect  
trolley before adjusting chain.  
Base of T-rail  
You have now finished assembling your garage door opener. Please read the following  
warnings before proceeding to the installation section:  
IMPORTANT INSTALLATION INSTRUCTIONS  
WARNING  
WARNING  
To reduce the risk of severe injury or death to persons:  
1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS.  
2. Install only on a properly balanced and lubricated garage door. An improperly balanced door  
may not reverse and could result in severe injury or death. Repairs to cables, spring assemblies  
and other hardware must be made by a professional service person before installing opener.  
3. Disable all locks and remove all ropes connected to the garage door before installing the opener.  
Ropes connected to a garage door can cause entanglement and death.  
4. If possible, install door opener 7 feet or more above floor with the emergency release handle  
mounted 6 feet above the floor.  
5. Do not connect the opener to power source until instructed to do so.  
6. Locate the Door Control within sight of the door at a minimum height of 5 feet where small  
children cannot reach and away from all moving parts of the door.  
7. Install the User Safety Instruction Label on the wall adjacent to the door control and the  
Maintenance Instruction Label in a prominent location on the inside of the garage door.  
8. Upon completion of the installation, the door must reverse when it comes in contact with a  
one-inch high object or a 2x4 laid flat on the floor.  
9. Do not wear watches, rings or loose clothing while installing or servicing an opener. Jewelry or  
loose clothing can be caught in the mechanism of the garage door or the opener.  
11  
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Installation Section: Pages 12 – 27  
Installation Step 1  
Determine Header Bracket Location  
WARNING  
If the header bracket is not rigidly fastened to  
a structural support on the header wall or  
ceiling, the safety reverse system may not  
work properly (see page 30). The door might  
not reverse when required, and could cause  
serious injury or death.  
Installation procedures vary according to  
garage door types. Follow the instructions  
which apply to your door.  
The garage door springs, cables, pulleys,  
brackets and their hardware are under extreme  
tension. Do not attempt to loosen, move or  
adjust them yourself. Serious personal injury  
or death could result. Call for professional  
garage door service.  
SECTIONAL Door and  
ONE-PIECE Door With Track  
Finished  
Ceiling  
Vertical  
Guideline  
Header  
Wall  
2x4  
Structural  
Supports  
• Close the door and mark the inside  
vertical centerline of the garage door.  
• Extend the line onto the header wall  
above the door.  
Remember, you can fasten the  
header bracket within 2 feet 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 (refer to page 14)  
when clearance is minimal. (It may  
be mounted on the wall upside down  
if necessary, to gain approximately  
1/2".)  
Vertical  
Guideline  
If you need to install the header bracket  
on a 2x4 (on wall or ceiling), use lag  
screws (not supplied) to securely fasten  
the 2x4 to structural supports as shown  
here and on page 13.  
Ceiling  
Header  
Wall  
2"  
Header  
Wall  
2"  
Track  
• Open your door to the highest  
point of travel as shown. Draw  
an intersecting horizontal line  
on the header wall 2" above  
the high point. This height will  
provide travel clearance for the  
top edge of the door.  
Track  
Highest Point  
of Travel  
Highest Point  
of Travel  
Door  
Door  
Door clearance brackets are  
available for sectional doors  
when headroom clearance is  
less than 2". See accessory  
page 38.  
Sectional door  
with curved track  
One-piece door  
with horizontal track  
Proceed to Step 2, page 14.  
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ONE-PIECE Door Without Track  
Read the Safety instructions on page 12. They also apply to doors without tracks.  
Unfinished  
Ceiling  
Header Wall  
Vertical  
• Close the door and mark the  
inside vertical centerline of  
Centerline  
2x4  
your garage door. Extend  
the line onto the header wall  
above door.  
Structural  
supports  
If headroom clearance is  
minimal, you can install the  
header bracket on the  
ceiling. See page 14.  
2x4  
Vertical  
Centerline of  
Garage Door  
If you need to install the  
header bracket on a 2x4 (on  
wall or ceiling), use lag  
screws (not supplied) to  
securely fasten the 2x4 to  
structural supports as  
shown.  
OPTIONAL CEILING MOUNT  
FOR HEADER BRACKET  
Header Wall  
Highest Point  
Highest Point  
of Travel  
Header  
Wall  
of Travel  
Door  
Door  
Jamb  
Hardware  
Pivot  
One-piece door without track  
jamb hardware  
One-piece door without track  
pivot hardware  
• Open your door to the highest point of travel as  
shown. Measure the distance from the top of the  
door to the floor. Subtract the actual height of the  
door. Add 8" to the remainder. (See Example).  
EXAMPLE  
Distance from top of door  
(at highest point of travel) to floor...........................92"  
Actual height of door .............................................-88"  
Remainder................................................................4"  
Add.........................................................................+8"  
Bracket height on header wall..............................=12"  
(Measure UP from top of CLOSED door.)  
• Close the door and draw an intersecting horizontal  
line on the header wall at the determined height.  
If the total number of inches exceeds the height  
available in your garage, use the maximum  
height possible, or refer to page 14 for ceiling  
installation.  
Proceed to Step 2, page 14.  
13  
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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.  
Installation Step 2  
Install the Header Bracket  
Fasten the Header Bracket to the Wall  
• Center the bracket on the vertical guideline with  
the bottom edge of the bracket on the horizontal  
line as shown (with the arrow pointing toward the  
ceiling).  
• Mark either set of bracket holes (do not use the  
holes designated for ceiling mount). Drill 3/16" pilot  
holes and fasten the bracket securely to a structural  
support with the hardware provided.  
Wall  
Mounting Holes  
Vertical  
Center  
Header  
Wall  
Line  
Lag Screws  
5/16"x9x1-5/8"  
CEILING MOUNT ONLY  
CEILING OUNT ONLY  
UP  
Header  
Bracket  
UP  
2x4  
Structural  
Support  
Door  
Spring  
The nail hole is for positioning  
only. You must use lag screws to  
mount the header bracket.  
Optional  
Wall Mounting  
Holes  
Garage  
Door  
Hardware Shown Actual Size  
Highest  
Point of Travel  
(of Garage Door)  
Vertical  
Center  
Line  
Lag Screw  
5/16"-9x1-5/8"  
Fasten the Header Bracket to the Ceiling  
• Extend the vertical guideline onto the ceiling as  
shown.  
Finished  
Ceiling  
• Center the bracket on the vertical mark, no more  
than 6" from the wall. Make sure the arrow is  
pointing toward the wall. The bracket can be  
mounted flush against the ceiling when clearance  
is minimal.  
Vertical  
Center Line  
Header  
Bracket  
• Mark holes designated for ceiling mount only. Drill  
3/16" pilot holes and fasten bracket securely to a  
structural support with the hardware provided.  
U P  
6" Maximum  
Door  
Spring  
Lag Screws  
5/16"x9x1-5/8"  
Ceiling Mounting Holes  
CEILING MOUNT ONLY  
UP  
Header  
Wall  
Vertical  
Center Line  
Garage  
Door  
The nail hole is for positioning only.  
You must use lag screws to mount  
the header bracket.  
14  
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Installation Step 3  
Attach the T-rail to the Header Bracket  
• Position the opener on the garage floor below the  
header bracket. Use packing material as a  
protective base.  
Header Wall  
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 T-rail to clear the  
spring.  
Header  
Bracket  
Cable  
Pulley  
Bracket  
• Position the cable pulley bracket against the header  
bracket.  
• Align the bracket holes and join with a clevis pin as  
shown.  
• Insert a ring fastener to secure.  
Ring Fastener  
T-rail  
Header Bracket  
Clevis Pin  
5/16"x2-3/4"  
Cable  
Pulley  
Bracket  
T-rail  
Garage  
Door  
Temporary  
Support  
Hardware Shown Actual Size  
Clevis Pin  
5/16"x2-3/4"  
Ring Fastener  
15  
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Installation Step 4  
Position the Opener  
CAUTION  
To prevent damage to steel, aluminum,  
fiberglass or glass panel doors, do not rest the  
opener on the door without using a 2x4.  
Follow instructions which apply to your door  
type as illustrated.  
SECTIONAL Door & ONE-PIECE Door with Track  
A 2x4 laid flat is convenient for setting an ideal  
door-to-T-rail distance.  
T-rail  
2x4  
• Raise the opener onto a stepladder.  
You will need help at this point if the ladder is  
not tall enough.  
• Open the door all the way and place a 2x4 laid flat  
on the top section beneath the T-rail.  
Door  
If the top panel hits the trolley when you raise  
the door, pull down on the trolley release arm to  
disconnect the inner and outer sections. The  
trolley can remain disconnected until Step 12 is  
completed.  
Stepladder  
Trolley  
Release Arm  
Trolley  
ONE-PIECE Door without Track  
Header  
Bracket  
• With the door fully open and parallel to the floor,  
Top of Opener  
measure the distance from the floor to the top of  
the door.  
Top of Door  
• Using a stepladder as a support, raise the opener  
to the same distance as the door from the floor (it  
will be at a slight angle as shown).  
• The top of the door should be level with the top of  
the opener. Do not position the opener more than  
2" above this point.  
Stepladder  
16  
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Installation Step 5  
Hang the Opener  
WARNING  
The opener could fall and injure someone if it  
is not properly secured. Fasten the opener  
securely to structural supports of the garage.  
Two representative installations are shown.  
Yours may be different. Hanging brackets should  
be angled, Figure 1, to provide rigid support. On  
finished ceilings, Figure 2, attach a sturdy metal  
bracket to structural supports before installing the  
opener. The bracket and fastening hardware are not  
supplied.  
Figure 1  
Structural  
Supports  
Measure the distance from each side of the opener  
to the structural support.  
Lag Screws  
5/16"-18x1-7/8"  
• Cut both pieces of the hanging bracket to required  
lengths.  
Measure  
Distance  
Drill 3/16" pilot holes in the structural supports.  
• Attach one end of each bracket to a support with  
5/16"-18x1-7/8" lag screws.  
• Fasten the opener to the hanging brackets with  
5/16"-18x7/8" screws, lock washers and nuts.  
5/16"-18x7/8" Screw  
5/16" Lock Washer  
5/16"-18 Nut  
• Check to make sure the T-rail is centered over the  
door (or in line with the header bracket if the  
bracket is not centered above the door).  
• Remove the 2x4. Operate the door manually. If the  
door hits the rail, raise the header bracket.  
Figure 2  
Hidden  
Support  
Grease the top and underside of the  
rail surface where the trolley  
slides with rail grease.  
— FINISHED CEILING —  
Lag Screws  
5/16"-18x1-7/8"  
(Not Supplied)  
5/16"-18x7/8" Screw  
5/16" Lock Washer  
5/16"-18 Nut  
Bracket  
(Not Supplied)  
Hardware Shown Actual Size  
5/16"-18x7/8" Screw  
5/16" Lock Washer  
5/16"-18 Nut  
Lag Screw  
5/16"-18x1-7/8"  
Hex Screw  
5/16"-18x7/8"  
Lock Washer 5/16"  
Nut 5/16"-18  
17  
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Installation Step 6  
Install the Door Control  
WARNING  
Do not connect to live electrical wiring. Connect  
only to 24 Volt low voltage wires. Connection to  
live wires or higher voltage may cause serious  
injury from shock, burn or electrocution.  
Children operating or playing with a garage  
door opener can injure themselves or others.  
The garage door could close and cause  
serious injury or death.  
Locate the door control within sight of the door  
at a minimum height of 5 feet where small  
children cannot reach, and away from all moving  
parts of the door and door hardware.  
The door control is typically attached directly to the  
wall. If installing into drywall, drill 5/32" holes and use  
the anchors provided. For pre-wired installations (as  
in new home construction), Console models may be  
mounted to a standard single gang box (Figure 2).  
Install the door control (or any additional push  
buttons) out of the reach of children and away  
from all moving parts of the door and door  
hardware, but where the garage door is visible.  
Do not allow children to operate the push  
button(s) or the remote control(s).  
1. Strip 1/4" of insulation from one end of the bell  
wire and connect it to the two screw terminals on  
the back of the door control: white to 2, and  
white/red to 1.  
A moving garage door could injure someone  
under it. Activate the opener only when the  
door is properly adjusted, you can see it  
clearly, and there are no obstructions to door  
travel.  
2. Pry off cover along one side with a screwdriver  
blade (see Figure 1). Fasten with 6ABx1-1/4” self-  
tapping screws (standard installation) or 6-32x1"  
machine screws (pre-wired installation) as follows:  
• Install bottom screw, allowing 1/8" to protrude  
above wall surface.  
Hardware Shown Actual Size  
• Position bottom of door control on screw head and  
slide down to secure. Adjust screw for snug fit.  
Insulated  
Staples  
6AB x 1-1/4" Screw  
Control Console (std installation)  
• Drill and install top screw with care to avoid  
cracking plastic housing. Do not overtighten.  
6-32 x 1" Screw  
Control Console (pre-wired)  
• Insert top tabs and snap on cover.  
Dry Wall Anchors  
3. (For standard installation only) 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.  
Figure 1  
Figure 2  
REMOVE & REPLACE COVER  
PRE-WIRED  
INSTALLATION  
To Replace,  
Insert  
Top Tabs  
First  
To Remove,  
Twist  
4. Connect the bell wire to the terminal screws on the  
opener panel: white to 2; white/red to 1.  
Here  
5. Position the antenna wire as shown.  
24 Volt  
2-Conductor  
Bell Wire  
2-Conductor  
Bell Wire  
Opener  
Terminal Screws  
STANDARD CONTROL  
(BACK VIEW)  
Top  
Lighted  
Push Button  
Mounting  
Hole  
RED  
1
WHITE  
2
Terminal  
Screws  
1
2
3
Bottom  
Mounting  
Hole  
9
9
1
1
7
3
7
3
5
5
Bell  
Wire  
KG  
KG  
STANDARD  
CONTROL  
CONSOLE  
Back Panel  
of Opener  
Antenna  
18  
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6. Attach the User Safety Instruction label to the wall  
near the door control, and the Maintenance  
Instruction label in a prominent location on the  
inside of the garage door.  
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.  
Page 32 explains how to use the door control.  
See Safety Reversing Sensor instructions  
beginning on page 21.  
Installation Step 7  
Install the Light and the Lens  
Install the light:  
• Install a 75 watt maximum light bulb in each  
socket. The lights will turn ON and remain lit for  
approximately 4-1/2 minutes when power is  
connected. Then the lights will turn OFF.  
Lens Guide  
Light Lens  
• If the bulbs burn out prematurely due to vibration,  
replace them with standard neck "Garage Door  
Opener" bulbs.  
Lens Slot  
Lens Tab  
Install the lens:  
• Apply slight pressure on the sides of each lens  
and slide the tabs into the slots in the side panels.  
75 Watt Max.  
Light Bulb  
For convenience, the lens may be installed  
after Adjustment Step 4 on page 30.  
• Reverse the procedure to remove the lenses.  
Installation Step 8  
Attach the Emergency  
WARNING  
Release Rope and Handle  
Do not use the red handle to pull the door  
open or closed. The rope knot could become  
untied and you could fall. Use the emergency  
release only to disengage the trolley and, if  
possible, only when the door is closed.  
Thread one end of the rope through the hole in  
the top of the red handle so "NOTICE" reads right  
side up as shown. Secure with an overhand knot.  
Garage doors are heavy. If the door is open  
when the handle is pulled, the door could  
close inadvertently if it is not properly  
balanced. Serious injury may result to persons  
under the door. Make sure the doorway is clear  
of persons and obstructions before pulling  
handle when door is open.  
The knot should be at least 1" from the end of  
the rope to prevent slipping.  
• Thread the other end of the rope through the hole  
in the release arm of the outer trolley.  
• Adjust rope length so the handle is 6 feet above  
the floor. Secure with an overhand knot .  
If it is necessary to cut the rope, heat seal the  
cut end with a match or lighter to prevent  
unraveling.  
Overhand  
Knot  
Trolley  
Trolley  
Rope  
Release Arm  
NOTICE  
Emergency  
Release Handle  
Overhand  
Knot  
19  
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Installation Step 9  
Electrical Requirements  
WARNING  
To prevent electrocution or fire, installation  
and wiring must be in compliance with local  
electrical and building codes.  
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.  
Do NOT use an extension cord, 2-wire adapter,  
or change the plug in any way to make it fit  
your outlet.  
If the plug doesn't fit into the outlet you have,  
contact a qualified electrician to install the proper  
outlet.  
To avoid installation difficulties,  
do not run the opener at this time.  
Wrong  
Right
If permanent wiring is required by your local code, refer to the following procedure:  
WARNING  
To prevent electrocution, remove power from  
the garage door opener and from the circuit  
you plan to use for the permanent connection.  
Permanent wiring  
connection  
To make a permanent connection through the  
7/8" diameter hole in the top of the opener  
(according to local code):  
• Remove the opener cover screws and set the  
cover aside.  
Ground Tab  
• Remove the attached 3-prong cord.  
Green Ground  
Screw  
• 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  
Ground Wire  
Black  
Wire  
grounded.  
• Reinstall the cover.  
White Wire  
Black  
Wire  
To avoid installation difficulties,  
do not run the opener at this time.  
20  
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The Safety Reversing System  
Information you'll need before you begin the installation of the safety reversing sensor.  
The safety reversing sensor must be connected  
and aligned correctly before the garage door  
opener will move in the down direction. This is a  
required safety device and cannot be disabled.  
WARNING  
Without a properly working safety reversing  
sensor, persons (particularly children) could  
be injured or killed by a closing garage door.  
Read and follow all instructions.  
Installation procedures are the same for sectional  
and one-piece doors.  
To protect small children, install the safety  
reversing sensor so that the beam will be no  
higher than 4"-6" above the garage floor.  
Disconnect power to the garage door opener  
before installing the safety reversing sensor.  
Be sure power to the opener is disconnected.  
The brackets must be securely fastened to a solid  
surface such as the studs on either side of the door,  
or add a piece of wood at each location if installing in  
masonry construction.  
The sending eye transmits an invisible light beam to  
the receiving eye. The units can be installed on  
either side of the garage door as long as the sun  
never shines directly into the receiving eye lens.  
The invisible light beam path must be unobstructed.  
No part of the garage door (or door tracks, springs,  
hinges, rollers or other hardware) can interrupt the  
beam while the door is closing. If it does, use a piece  
of wood to build out each sensor mounting location to  
the minimum depth required for light beam clearance.  
Look at the label on the connector end of each case  
to identify the sensors.  
The brackets must be connected and fastened so  
that the sending and receiving eyes face each other  
as shown in Figure 1.  
If an obstruction breaks the light beam while the  
garage door is closing, the door will stop and  
reverse to full open position and the opener lights  
will flash for 5 seconds.  
Sensor Beam  
4-6" max.  
Sensor Beam  
4-6" max.  
above floor  
above floor  
Invisible Light Beam  
Protection Area  
Figure 1: Facing the door from inside the garage  
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Installation Step 10  
Install the Safety Reversing Sensor  
Figure 2  
Figures 2 and 3 show assembly of brackets and  
"C" wrap based on the recommended installation of  
the sensors as shown on page 21.  
Mounting Bracket  
With Square Holes  
"C" Wrap  
However, Figures 4 and 5 are variations which may  
fit your installation requirements better. Make sure  
the wraps and brackets are aligned so the  
sensors will face each other across the garage  
door.  
#10-32  
Lock Nuts  
#10-32x3/8"  
Screws  
Fasten the "C" wraps to the mounting brackets  
having square holes, using the hardware shown  
in Figure 2.  
• Connect each assembly to a slotted bracket, using  
the hardware shown in Figure 3.  
Figure 3  
Note the alignment of the brackets for left and  
right sides of the door.  
1/4x1-1/2"  
Lag Screws  
1/4-20x1/2" Carriage Bolts  
(with square shoulder)  
• Finger tighten the lock nuts.  
Inside  
Garage  
Wall  
Use bracket mounting holes as a template to  
locate and drill (2) 3/16" diameter pilot holes on  
both sides of the garage door, 4"-6" above the  
floor but not exceeding 6". (See warning on  
page 21.)  
• Attach bracket assemblies with 1/4"x1-1/2" lag  
screws as shown in Figure 3.  
Mounting Bracket  
with Slot  
"C" Wrap  
• Adjust right and left side bracket assemblies to the  
same distance out from the mounting surface.  
Make sure all door hardware obstructions are  
cleared. Tighten the nuts securely.  
Mounting Bracket  
with Square Holes  
1/4"-20  
Lock Nuts  
Hardware Shown Actual Size  
#10x32  
Lock Nut  
1/4x1-1/2"  
Lag Screw  
1/4"-20x1/2"  
Carriage Bolts  
#10-32x3/8"  
Screw  
1/4"-20  
Lock Nut  
Staples  
Figure 5  
Figure 4  
Alternate Wall Mount  
Alternate Floor Mount  
Inside  
Garage  
Wall  
Inside  
Garage  
Wall  
Sensor with wire  
Indicator Light  
Mounting Bracket  
with Slot  
Mounting Bracket  
with Square Holes  
Mounting Bracket  
with Square Holes  
Mounting Bracket  
with Slot  
"C" Wrap  
Attach with  
concrete anchors  
(not provided)  
Sensor  
with wire  
"C" Wrap  
Indicator Light  
Garage  
Floor  
Garage  
Floor  
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22  
Center each sensor unit in a "C" wrap with lenses  
pointing toward each other across the door (see  
Figure 6).  
Wing  
Nut  
Figure 6  
"C" Wrap  
Indicator  
Light  
• Secure sensors with the hardware shown. Finger  
tighten the wing nut on the receiving eye to allow  
for final adjustment. Securely tighten the sending  
eye wing nut.  
Sensor  
with Wire  
1/4-20 x 1-1/2"  
Hex Bolt  
Run the wires from both sensors to the opener.  
Use insulated staples to secure wire to wall and  
ceiling.  
Trouble Shooting  
• Strip 1/4" of insulation from each set of wires.  
Separate white and white/black wires sufficiently to  
connect to the opener terminal screws: white to 2  
and white/black to 3.  
1. If the sending eye indicator light does not glow  
steadily after installation, check for:  
• Electric power to the opener.  
• A short in the white or white/black wires. These  
can occur under staples or at screw terminal  
connections.  
Aligning the Safety Sensors  
Plug in the opener. Green indicator lights in both  
the sending and receiving eyes will glow steadily if  
wiring connections and alignment are correct.  
• Incorrect wiring between sensors and opener.  
• An open wire (wire break).  
2. If the sending eye indicator light glows steadily but  
the receiving eye indicator light doesn't:  
• Check alignment.  
The sending eye indicator light will glow regardless  
of alignment or obstruction. If the indicator light is  
off, dim, or flickering in the receiving eye (and the  
invisible light beam path is not obstructed),  
alignment is required.  
• Check for an open wire to the receiving eye.  
3. If the receiving eye indicator light is dim, realign  
either sensor.  
• Loosen the sending eye wing nut and re-adjust,  
aiming directly at the receiving eye. Lock in place.  
NOTE: When the invisible beam path is obstructed or  
misaligned while the door is closing, the door will  
reverse. If the door is already open, it will not close.  
The opener lights will flash 10 times. (If bulbs are not  
installed, 10 clicks are audible.) See page 21.  
• Loosen the receiving eye wing nut and adjust  
sensor vertically and/or horizontally until it receives  
the sender’s beam. When the green indicator light  
glows steadily, tighten the wing nut.  
Hardware Shown Actual Size  
Figure 7  
1/4-20x1-1/2"  
Hex Bolt  
Connect Wire to  
Wing Nut  
Opener Terminals  
Finished  
Bell Wire  
Ceiling  
Bell Wire  
Sensor  
Connections  
Door Control  
Connections  
(dotted line)  
1
2
3
OPENER TERMINAL SCREWS  
Sensor  
Invisible Light Beam  
Protection Area  
Sensor  
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Installation Step 11  
CAUTION  
Fasten Door Bracket  
To prevent damage to steel, aluminum,  
fiberglass or glass panel doors, always  
reinforce the inside of the door both vertically  
and horizontally with an angle iron.  
Follow instructions which apply to your door  
type as illustrated below or on page 25.  
A horizontal brace should be long enough to be secured to 2 vertical supports. A vertical brace should  
cover the height of the top panel.  
The illustration shows one piece of angle iron as the horizontal brace. For the vertical brace, 2 pieces of  
angle iron are used to create a "U"-shaped support. The best solution is to check with your garage door  
manufacturer for an opener installation door reinforcement kit.  
SECTIONAL Door Installation Procedure  
Header  
Bracket  
Horizontal and vertical reinforcement  
is needed for lightweight garage doors  
(fiberglass, aluminum, steel,  
doors with glass panel, etc).  
Figure 1  
Vertical  
Reinforcement  
Vertical  
Guideline  
Door  
Bracket  
Location  
UP  
Carriage Bolt  
5/16"-18x2-1/2"  
Vertical  
Guideline  
Door  
Bracket  
Lock  
Washer  
5/16"  
Nut  
5/16"-18  
Inside Edge  
of Door or  
Reinforcement Board  
Figure 2  
UP  
• Center the door bracket on the previously marked  
vertical guideline used for the header bracket  
Door Bracket  
installation. Note correct UP placement, as  
stamped inside the bracket.  
• Position the bracket on the face of the door within  
the following limits:  
Hardware Shown Actual Size  
A) The top edge of the bracket 2"-4" below the top  
edge of the door.  
B) The top edge of the bracket directly below any  
structural support across the top of the door.  
• Mark and drill 5/16" left and right fastening holes.  
Secure the bracket as shown in Figure 1 if there is  
vertical reinforcement.  
Nut 5/16"-18  
Lock Washer 5/16"  
If your installation doesn't require vertical reinforce-  
ment but does need top and bottom fastening holes  
for the door bracket, fasten as shown in Figure 2.  
Carriage Bolt  
5/16"-18x2-1/2"  
24  
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All ONE-PIECE Door Installation Procedure  
Please read and comply with the warnings and reinforcement instructions on page 24.  
They apply to one-piece doors also.  
Header Wall  
Finished Ceiling  
2x4 Support  
Horizontal and vertical  
reinforcement is needed for  
lightweight garage doors  
Header  
Bracket  
(fiberglass, aluminum, steel,  
door with glass panel, etc.).  
Door  
Bracket  
Vertical  
Inside Edge  
Centerline of  
Garage Door  
of Door or  
Reinforcement Board  
Door  
Bracket  
• Center the bracket on the inside face of the door,  
in line with the header bracket as shown. Mark  
either the left and right, or the top and bottom  
holes.  
Hardware Shown Actual Size  
• Drill 5/16" pilot holes and fasten the door bracket  
with hardware supplied.  
Nut 5/16"-18  
Lock Washer 5/16"  
Carriage Bolt  
5/16"-18x2-1/2"  
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Installation Step 12  
Connect Door Arm to Trolley  
Follow instructions which apply to your door  
type as illustrated.  
SECTIONAL Doors Only  
Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley  
from the inner trolley. Slide the outer trolley back (away from the door) about 2" as shown in  
Figures 1, 2 and 3.  
Figure 1:  
Figure 2:  
Fasten straight door arm section to outer trolley  
with the 5/16"x1" clevis pin. Secure the connection  
with a ring fastener.  
Bring arm sections together. Find two pairs of holes  
that line up and join sections. Select holes as far  
apart as possible to increase door arm rigidity.  
• Fasten curved door arm to the door bracket in the  
same way, using the 5/16"x1-1/4" clevis pin.  
Inner Trolley  
Outer Trolley  
Lock  
Washers  
5/16"  
Clevis Pin  
5/16"x1"  
Rope  
Ring  
Fastener  
Emergency  
Nuts  
Release  
5/16"-18  
Handle  
Straight  
Door Arm  
Door  
Bracket  
Screws  
5/16"-18x7/8"  
Curved  
Door Arm  
Clevis Pin  
5/16"x1-1/4"  
Door Bracket  
Figure 1  
Figure 2  
Hole Alignment Alternative  
Figure 3:  
If holes in curved arm are above holes in straight  
arm, disconnect straight arm. Cut about 6" from  
the solid end. Reconnect to trolley with cut end  
down as shown.  
Lock  
Washers  
5/16"  
• Bring arm sections together.  
• Find two pairs of holes that line up and join with  
screws, lock washers and nuts.  
Nuts  
5/16"-18  
Hardware Shown Actual Size  
Screws  
5/16"-18x7/8"  
Cut This End  
Nut 5/16"-18  
Lock Washer 5/16" Ring Fastener  
Figure 3  
Clevis Pin  
5/16"x1-1/4" (Door Bracket)  
Hex Screw  
5/16"-18x7/8"  
Clevis Pin  
5/16"x1" (Trolley)  
Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when the opener is operated.  
26  
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All ONE-PIECE Doors  
Assemble the Door Arm:  
Door  
Bracket  
Fasten the straight and curved door arm sections  
together to the longest possible length, with a 2 or 3  
hole overlap.  
Ring  
Fastener  
Lock  
Washers  
5/16"  
Nuts  
5/16"-18  
• With the door closed, connect the straight door arm  
section to the door bracket with the 5/16"x1-1/4"  
clevis pin.  
Straight  
Door Arm  
5/16"x1-1/4"  
Clevis Pin  
• Secure with a ring fastener.  
Screws  
5/16"-18x7/8"  
Curved Door Arm  
On one-piece doors, before connecting the door arm to the trolley the travel limits must be adjusted. Limit adjust-  
ment screws are located on the left side panel as shown on page 28. Follow adjustment procedures below.  
Fully Closed  
Trolley  
Fully Open  
Trolley  
Door Arm  
Door Arm  
Door Arm  
Connector Hole  
Connector Hole  
Door Arm  
Closed  
Door  
Door with  
Backward Slant  
Open Door  
Adjustment Procedures for One-Piece Doors  
Open Door Adjustment:  
Decrease UP limit  
Closed Door Adjustment:  
Decrease DOWN limit  
• Turn the UP limit adjustment screw counter-  
clockwise 5-1/2 turns.  
• Turn the DOWN limit adjustment screw clockwise  
5 complete turns.  
• Press the Door Control push button. The trolley will  
travel to the fully open position.  
• Press the Door Control push button. The trolley will  
travel to the fully closed position.  
• Manually raise the door to the open position  
(parallel to the floor), and lift the door arm to the  
trolley. The arm should touch the trolley just in  
back of the door arm connector hole. Refer to the  
fully open trolley/door arm positions in the  
illustration. If the arm does not extend far enough,  
adjust the limit further. One full turn equals 2" of  
trolley travel.  
• Manually close the door and lift the door arm to the  
trolley. The arm should touch the trolley just ahead  
of the door arm connector hole. Refer to the fully  
closed trolley/door arm positions in the illustration. If  
the arm is behind the connector hole, adjust the limit  
further. One full turn equals 2" of trolley travel.  
Connect the door arm to the trolley.  
Close the door and join the curved arm to the connector hole in the trolley with the remaining clevis pin. It may  
be necessary to lift the door slightly to make the connection.  
• Secure with a ring fastener.  
• Run the opener through a complete travel cycle. If the door has a slight "backward" slant in full open position  
as shown in the illustration, decrease the UP limit until the door is parallel to the floor.  
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Adjustment Section: Pages 28 – 30  
Adjustment Step 1  
Adjust the UP and DOWN Limits  
WARNING  
Do not make any limit adjustments until the  
safety reversing sensors are completely  
installed.  
Improper adjustment of the travel limits will  
interfere with the proper operation of the  
safety reverse system. The door might not  
reverse properly when required and could  
seriously injure or kill someone under it. Test  
the safety reverse system following all  
adjustments to the travel limits. See page 30.  
Limit adjustment settings regulate the points at  
which the door will stop when moving up or down.  
The door will stop in the up direction if anything  
interferes with door travel. The door will reverse in  
the down direction if anything interferes with the  
door travel (including binding or unbalanced doors).  
Limit  
Adjustment  
Screws  
To operate the opener, press the Door Control push  
button. Run the opener through a complete travel  
cycle.  
2-4"  
• Does the door open and close completely?  
• Does the door stay closed and not reverse  
unintentionally when fully closed?  
Cover  
Protection  
Bolt  
If your door passes both of these tests, no limit  
adjustments are necessary unless the reversing test  
fails (See page 30).  
Left Side Panel  
Adjustment procedures are outlined below. Run the  
opener through a complete travel cycle after  
each adjustment.  
Repeated operation of the opener during adjustment  
procedures may cause the motor to overheat and  
shut off. Simply wait 15 minutes and try again.  
Adjustment Label  
Read the procedures carefully before proceeding to  
Adjustment Step 2. Use a screwdriver to make limit  
adjustments.  
How and When to Adjust the Limits  
• If the door does not open completely, but  
opens at least five feet:  
If you have adjusted the door arm to the maximum  
length and the door still will not close completely,  
lower the header bracket. See Installation Step 1,  
pages 12 and 13.  
Increase up travel. Turn the UP limit adjustment  
screw clockwise. One turn equals 2" of travel.  
NOTE: To prevent the trolley from hitting the  
cover protection bolt, keep a minimum distance  
of 2-4" between the trolley and the bolt.  
• If the opener reverses in fully closed position:  
Decrease down travel. Turn the DOWN limit  
adjustment screw clockwise. One turn equals 2" of  
travel.  
• If door does not open at least 5 feet:  
Adjust the UP (open) force as explained in  
Adjustment Step 2.  
• If the door reverses when closing and there is  
no visible interference to travel cycle:  
If the opener lights are flashing, the Safety Reversing  
Sensors are either not installed, misaligned, or  
obstructed. See Troubleshooting, page 23.  
• If the door does not close completely:  
Increase down travel. Turn the DOWN limit  
adjustment screw counterclockwise. One turn  
equals 2" of travel.  
Test the door for binding: Pull the emergency release  
handle. Manually open and close the door. If the door  
is binding, call for garage door service. If the door is  
not binding or unbalanced, adjust the DOWN (close)  
force. See Adjustment Step 2.  
If the door still won't close completely and the trolley  
bumps into the pulley bracket (see page 4 or 5), try  
lengthening the door arm (see page 26).  
28  
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Adjustment Step 2  
Adjust the Force  
WARNING  
Too much force on the door will interfere with  
the proper operation of the safety reverse  
system. The door might not reverse properly  
when required and could seriously injure or  
kill someone under it. Do not increase the  
force beyond the minimum amount required  
to close the door. Do not use the force  
adjustments to compensate for a binding or  
sticking garage door. Test the safety reverse  
system following all adjustments to force  
levels. See page 30.  
Force adjustment controls are located on the back  
panel of the opener. Force adjustment settings  
regulate the amount of power required to open and  
close the door.  
The door will stop in the up direction if anything  
interferes with its travel. The door will reverse in the  
down direction if anything interferes with its travel  
(including binding or unbalanced doors).  
If the forces are set too light, door travel may be  
interrupted by nuisance reversals in the down  
direction and stops in the up direction. Weather  
conditions can affect the door movement, so  
occasional adjustment may be needed.  
Back panel of  
The maximum force adjustment range is 260 degrees,  
about 3/4 of a complete turn. Do not force controls  
beyond that point. Turn force adjustment controls  
with a screwdriver.  
door opener  
Force  
Adjustment  
Control  
1
2
3
9
9
1
1
7
3
7
3
5
5
KG  
KG  
9
9
1
1
7
7
3
3
5
5
KG  
KG  
Adjustment Label  
How and When to Adjust the Forces  
Test the DOWN (close) force  
Make 10 degree turn adjustments until the door stops  
easily. After each adjustment, run the opener through  
a complete travel cycle.  
Grasp the door bottom when the door is about  
halfway through DOWN (close) travel. The door  
should reverse. Reversal halfway through down  
travel does not guarantee reversal on a one-inch  
obstruction. See page 30. If the door is hard to  
hold or doesn't reverse, decrease the DOWN (close)  
force by turning the control counterclockwise.  
If the door doesn't open at least 5 feet  
Increase UP (Open) force by turning the control  
clockwise. Make 10 degree turn adjustments until  
door opens completely. Re-adjust the UP limit if  
necessary. After each adjustment, run the opener  
through a complete travel cycle.  
Make 10 degree turn adjustments until the door  
reverses normally. After each adjustment, run the  
opener through a complete cycle.  
If the door reverses during the down (close) cycle  
and the opener lights aren't flashing  
Test the UP (open) force  
Increase DOWN (close) force by turning the control  
clockwise. Make 10 degree turn adjustments until the  
door completes a close cycle. After each adjustment,  
run the opener through a complete travel cycle. Do  
not increase the force beyond the minimum  
amount required to close the door.  
Grasp the door bottom when the door is about  
halfway through UP (open) travel. The door should  
stop. If the door is hard to hold or doesn't stop,  
decrease UP (open) force by turning the control  
counterclockwise.  
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Adjustment Step 3  
Test The Safety Reversing Sensor  
WARNING  
Without a properly working safety reversing  
sensor, persons (particularly children) could be  
seriously injured or killed if trapped by a closing  
garage door. Repeat this test once a month.  
• Press the remote control push button to open the  
door.  
• Place the opener carton in the path of the door.  
• Press the remote control push button to close the  
door. The door will not move more than an inch,  
and the opener lights will flash.  
Professional service is required if the opener  
closes the door when the safety reversing  
sensor is obstructed.  
The garage door opener will not close from a  
remote control if the indicator light in either  
sensor is off (alerting you to the fact that the  
sensor is misaligned or obstructed).  
The garage door can be closed by pressing and  
holding the Door Control push button until down  
travel is completed.  
Safety Reversing Sensor  
Safety Reversing Sensor  
Adjustment Step 4  
Test the Safety Reverse System  
WARNING  
Failure to test and adjust the safety reverse  
system may result in serious injury or death to  
persons trapped by a closing garage door.  
Repeat this test once a month and adjust as  
needed.  
Test:  
GARAGE DOOR  
• Place a one-inch board (or a 2x4 laid flat) on the  
floor, centered under the garage door.  
• Operate the door in the down direction. The door  
must reverse on striking the obstruction.  
Adjustment:  
If the door stops on the obstruction, it is not traveling  
far enough in the down direction.  
• Increase the DOWN limit by turning the DOWN  
limit adjustment screw counterclockwise 1/4 turn.  
• Repeat the test.  
On a sectional door, make sure limit  
adjustments do not force the door arm beyond a  
straight up and down position. See the  
illustration on page 26.  
• When the door reverses on the one-inch board,  
remove the obstruction and run the opener through  
3 or 4 complete travel cycles to test adjustment.  
1 Inch Obstruction  
Important safety check  
Repeat Adjustment Steps 1, 2 and 4 after:  
If the door will not reverse after repeated  
adjustment attempts, call for professional  
garage door service.  
• Each adjustment of door arm length, force controls  
or limit controls.  
• Any repair to or adjustment of the garage door  
(including springs and hardware).  
• Any repair to or buckling of the garage floor.  
• Any repair to or adjustment of the opener.  
30  
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IMPORTANT SAFETY INSTRUCTIONS  
WARNING  
WARNING  
To reduce the risk of severe injury or death to persons:  
1. READ AND FOLLOW ALL INSTRUCTIONS.  
5. If possible, use the emergency release only  
when the door is in a closed position. Caution  
should be taken whenever the disconnect cord  
is actuated with the door open. Weak or broken  
springs may cause the door to fall rapidly,  
causing injury or death to persons.  
2. Do not permit children either to operate or to  
play with the opener. Keep remote control in a  
location inaccessible to children.  
3. Operate opener only when the door is in full  
view and free from any obstruction. Keep the  
door in sight until it is completely closed.  
NO ONE SHOULD CROSS THE PATH OF THE  
MOVING DOOR.  
6. KEEP GARAGE DOORS PROPERLY  
BALANCED. See page 3. An improperly  
balanced door may not reverse when required  
and could result in severe injury or death.  
Repairs to cables, spring assemblies and other  
hardware must be made by a professional  
garage door person.  
4. Check safety reversal system monthly. See  
page 30. The garage door MUST reverse on  
contact with a 2x4 board laid flat on the floor. If  
an adjustment is made to either the force or  
the limit of travel, both adjustments may be  
needed and the safety reversal system must be  
checked. Failure to properly adjust the opener  
may result in severe injury or death.  
7. Disconnect the electric power to the garage  
door opener before making any repairs or  
removing the covers.  
8. SAVE THESE INSTRUCTIONS.  
3-FUNCTION  
Open this end  
first to avoid  
The remote control  
Care of Your Opener  
The lithium batteries should  
cracking  
produce power for up to  
housing  
Limit and force adjustment controls  
5 years. To replace batteries,  
use the visor clip or screwdriver  
Limit Controls  
Force Controls  
blade to pry open the case, as  
shown. (“Open” location is  
stamped on back of transmitter  
COMPACT  
Twist here  
to open  
9
9
1
1
7
7
3
3
5
5
case.) Insert batteries positive side down.  
Adjustment Label  
KG  
KG  
(Located on the left side panel)  
Replace cover as follows. 3-Function remote: Insert  
the 3 tabs at the opposite end and snap shut. Compact  
3-Function remote: Snap shut along both sides.  
Adjustment Label  
(Located on the back panel)  
Weather conditions may cause some minor  
changes in door operation requiring some re-  
adjustments, particularly during the first year of  
operation.  
Dispose of old batteries properly.  
Pages 28 and 29 refer to the limit and force  
adjustments. Only a screwdriver is required. Follow  
the instructions carefully.  
WARNING  
Keep batteries away from small children. If  
swallowed, promptly notify doctor.  
Repeat the safety reverse test (page 30) after any  
adjustment of limits or force.  
Maintenance Schedule  
Once a Month  
Twice a Year  
Manually operate door. If it is unbalanced or  
Check chain tension. Disconnect trolley first.  
binding, call for professional garage door service.  
Adjust if necessary (See page 11).  
Check to be sure door opens & closes fully.  
Adjust limits and/or force if necessary.  
(See pages 28 and 29.)  
Once a Year  
Oil door rollers, bearings and hinges. The opener  
does not require additional lubrication. Do not  
grease the door tracks.  
Repeat the safety reverse test. Make any  
necessary adjustments (See page 30).  
31  
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Operation of Your Opener  
Activate the opener with any of the following:  
• The Remote Control: Hold push button down until  
WARNING  
the door starts to move.  
• The Door Control: Hold push button down until  
Weak or broken springs could allow an open  
door to fall (either rapidly or unexpectedly),  
resulting in serious injury, death or property  
damage. If possible, use the emergency  
release rope and handle only when the door is  
fully closed.  
the door starts to move.  
• The Outdoor Key Switch or Keyless Entry: (See  
Accessories)  
When the opener is activated with the safety  
reversing sensor installed and correctly aligned:  
1. If open, the door will close. If closed, the door will  
open.  
To open the door  
manually:  
2. If closing, the door will reverse.  
The door should be fully  
closed if possible. Pull  
down on the red  
emergency release  
3. If opening, the door will stop (allowing space for  
entry and exit of pets and for fresh air).  
Trolley  
Release Arm  
4. If the door has been stopped in a partially open  
position, it will close.  
Trolley  
handle and lift the door  
Emergency  
5. If obstructed while closing, the door will reverse.  
6. If obstructed while opening, the door will stop.  
manually. To reconnect  
Release Handle  
(Pull Down)  
NOTICE  
the door to the opener,  
press the Door Control  
push button.  
7. The garage door will reverse in the closing cycle  
when the invisible beam is broken. If fully open,  
the door will not close when the beam is broken.  
The sensor has no effect in the opening cycle.  
Manual disconnect  
position  
If the sensor is not installed, or is not aligned  
correctly, the door won't close from any remote  
transmitter. You can close the door with the Door  
Control, the Outdoor Key Switch, or Keyless Entry,  
however, if you activate them until down travel is  
complete. If you release them too soon, the door will  
reverse.  
The lockout feature  
prevents the trolley from  
reconnecting auto-  
matically. Pull the  
emergency handle down  
and back (toward the  
Trolley  
opener). The door can  
then be raised and  
lowered manually as often  
as necessary. To  
disengage the Lockout  
Feature, pull the  
Trolley  
Release Arm  
The opener light will blink for 5 seconds when the  
safety reversing sensor causes the door to reverse.  
Emergency  
Release Handle  
(Pull Down & Back  
Towards Opener)  
Opener Light will turn on under the following  
conditions: When the opener is initially plugged in;  
when the power is interrupted; when the opener is  
activated. They will turn off automatically after 4-1/2  
minutes or provide constant light when the Light  
feature is activated. SECURITYmodels: Lights will  
also turn on when someone walks through the open  
garage door. Bulb size is 75 watts maximum.  
NOTICE  
emergency handle straight  
Lockout position  
down. The trolley will  
reconnect on the next UP  
or Down operation.  
Operation of the Door Controls  
(see page 18)  
Press the lighted push button to open or close the  
door.  
Press again to reverse the door during the closing  
cycle or to stop the door while it's opening.  
32  
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Receiver and Remote Control Programming  
To comply with FCC/IC rules, adjustment or modifications of this receiver  
and/or transmitter are prohibited, except for changing the code setting or  
replacing the battery. THERE ARE NO OTHER USER SERVICEABLE  
PARTS.  
Your garage door opener receiver and remote control  
have been pre-set at the factory. The door will open  
when you press the LARGE remote control push  
button. THE CODE BETWEEN THE REMOTE  
CONTROL AND THE RECEIVER CHANGES WITH  
EACH USE, randomly accessing over 100 billion new  
codes.  
WARNING  
Children operating or playing with a garage  
door opener can injure themselves or others.  
The garage door could close and cause serious  
injury or death. Do not allow children to operate  
the door push button(s) or remote control(s).  
The 3-function remote control can also activate  
additional SECURITYgarage door openers and/or  
light controls.  
A moving garage door could injure or kill  
someone under it. Activate the opener only  
when you can see the door clearly, it is free of  
obstructions, and is properly adjusted.  
Your SECURITYopener will operate with:  
• several SECURITYremote controls (with blue  
push buttons) utilizing up to 8 functions.  
• one SECURITYKeyless Entry System (Model  
18795).  
Follow the instructions below to program your opener  
to match any additional remotes you may purchase.  
See Accessories on page 38.  
Figure 1  
Select a remote control push  
button to operate opener  
To Add A Remote Control  
1. Press and hold the selected remote control push  
button. See Figure 1.  
2. Then press and release the SRT (learn) button on  
the back panel of the opener, Figure 2. The  
indicator light on the back panel will begin to blink  
and the opener light will flash once.  
SECURITYꢀ  
3-Function  
Remote Control  
3. Release the remote push button.  
Test by pressing the remote push button.  
To Erase All Remote Control Codes  
Press and hold the SRT button on the opener panel  
until the indicator light turns off (about 6 seconds). All  
remote control codes are now erased. Then follow  
the steps above to re-program each remote control.  
Figure 2  
Garage Door Opener  
(With "Smart" Button)  
1
2
3
To Add the Keyless Entry  
9
9
1
1
7
7
3
3
We recommend that you program your password  
before you install the Keyless Entry. You will not  
need assistance, and you can test the reception  
at the mounting location before installation.  
5
5
BACK  
PANEL  
KG  
KG  
"SRT" (learn)  
Button  
Indicator  
Light  
Code programming instructions are  
also located on the back panel.  
1. Choose a 4-digit password using numbers from  
0 to 9 (a number can be used more than once, for  
example, 4, 0, 4, 1).  
2. Press the four buttons for the password, then  
press and hold the Enter button. The indicator  
light on the door opener back panel will blink.  
3. Press and release the SRT (learn) button on the  
opener panel. After the opener light flashes,  
release the Enter button.  
Test by pressing the password, then press Enter.  
The door should begin to move.  
33  
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Having a Problem?  
Situation  
Probable Cause and Solution  
1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light,  
check the fuse box or the circuit breaker. (Some outlets are controlled by a door switch.)  
The opener doesn't  
operate from either  
the Door Control or  
the remote control:  
2. Have you disabled all door locks? Review installation instruction warnings on Page 11.  
3. Is there a build-up of ice or snow under the door? The door may be frozen to the  
ground. Remove any restriction.  
4. The garage door spring may be broken. Have it replaced.  
5. Repeated operation may have tripped the overload protector in the motor. Wait  
15 minutes. Try again.  
Opener operates  
from the remote  
control, but not from  
the Door Control:  
1. Is the Door Control lit? If not, remove the bell wire from the opener terminal screws.  
Short the red and white terminals by touching both terminals at the same time with a  
piece of wire. If the opener runs, check for a faulty wire connection at the Door  
Control, a short under the staples, or a broken wire.  
2. Are the wiring connections correct? Review Step 6, page 18.  
1. Is any door push button flashing? If your model has the Lock feature, make sure the  
lock is Off.  
The door operates  
from the Door  
Control, but not from  
the remote control:  
2. Your opener needs to re-learn a remote control code. Refer to Instructions on the  
opener panel.  
3. Program the receiver to match the remote control code.  
4. Repeat the receiver programming procedure with all remote controls.  
The remote control  
has short range:  
1. Change the location of the remote control in your car.  
2. Check to be sure the antenna on the side or back panel of opener extends fully  
downward.  
3. Some installations may have shorter range due to a metal door, foil backed  
insulation, or metal garage siding. (Antenna Extender Kit 41A3504)  
Opener noise is  
disturbing in living  
quarters of home:  
If operational noise is a problem because of proximity of the opener to the living  
quarters, the Vibration Isolator Kit 41A3263 can be installed. This kit was designed to  
minimize vibration to the house and is easy to install.  
The garage door  
opens and closes  
by itself:  
1. Be sure that all remote control push buttons are not stuck in the “ON” position.  
2. Remove the bell wire from the Door Control terminals and operate from the remote  
control only. If this solves the problem, the Door Control is faulty (replace), or there is  
an intermittent short on the wire between the Door Control and the opener.  
3. Clear memory and re-program all remote controls.  
The door doesn't  
open completely:  
1. Is something obstructing the door? Remove the obstruction or repair the door.  
2. If the door has been working properly but now doesn't open all the way, increase the  
up force. See page 29.  
3. If door opens at least 5 feet, the travel limits may need to be increased. One turn  
equals 2 inches of travel. See page 28.  
Repeat the safety reverse test after the adjustment is complete.  
The door stops but  
doesn't close  
completely:  
Review the travel limits adjustment procedures on page 28.  
Repeat the safety reverse test after any adjustment of door arm length, close  
force or down limit.  
34  
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Having a Problem? (continued)  
Situation  
Probable Cause & Solution  
The door opens but  
won't close:  
1. If the opener lights blink, check the safety reversing sensor. See page 23.  
2. If the opener lights do not blink and it is a new installation, check the down force.  
See Adjustment Step 2, page 29. For an existing installation, see below.  
Repeat the safety reverse test after the adjustment is complete.  
The door reverses for  
no apparent reason  
and opener lights  
don't blink:  
1. Is something obstructing the door? Pull the red emergency release handle. Operate  
the door manually. If it is unbalanced or binding, call for professional garage door  
service.  
2. Clear any ice or snow from the garage floor area where the door closes.  
3. Review the force adjustment procedures on page 29.  
4. If door reverses in the fully closed position, decrease the travel limits (page 28).  
Repeat safety reverse test after adjustments to force or travel limits. The need  
for occasional adjustment of the force and limit settings is normal. Weather  
conditions in particular can affect door travel.  
The door reverses for  
no apparent reason  
and opener lights  
blink for 5 seconds  
after reversing:  
Check the safety reversing sensor. Remove any obstruction or align the receiving eye.  
See page 23.  
The opener light:  
. . . doesn't turn on:  
Replace the light bulbs (75 watts maximum). Use a standard neck garage door opener  
bulb if regular bulb burns out.  
. . . doesn't turn off:  
Is the Light feature on? Turn it off.  
The door may be out of balance or the springs are broken. Close the door and use the  
emergency release to disconnect the trolley. Open and close the door manually. A properly  
balanced door will stay in any point of travel while being supported entirely by its springs. If it  
does not, disconnect the opener and call a professional garage door serviceman. Do not  
increase the force to operate the opener.  
The opener strains or  
maximum force is  
needed to operate  
door:  
The opener motor  
hums briefly, then  
won't work:  
1. The garage door springs are broken. See above.  
2. If the problem occurs on the first operation of the opener, door may be locked. Disable  
the door lock. If the chain was removed and reinstalled, the motor may be out of phase.  
Remove the chain; cycle the motor to the down position. Observe the drive sprocket.  
When it turns in a clockwise direction and stops in the down position, reinstall the chain.  
Repeat the safety reverse test after the adjustment is complete.  
The opener won't  
operate due to  
power failure:  
1. Use the emergency release to disconnect the trolley. The door can be opened and closed  
manually. When the power is restored, press the Door Control push button and trolley will  
automatically reconnect (unless trolley is in lockout position.) See page 32.  
2. The Outside Trolley Release accessory (for use on garages with no service door)  
disconnects the trolley from outside the garage in case of power failure.  
The chain droops  
or sags:  
It is normal for the chain to droop slightly in the closed door position. Use the  
emergency release to disconnect the trolley. If the chain returns to normal height when  
the trolley is disengaged and the door reverses on a one-inch board, no adjustments  
are needed (see page 11).  
35  
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Repair Parts  
Opener Assembly Parts  
1
2
3
4
6
16  
20  
5
8
7
9
10  
19  
18  
3
17  
11  
13  
16  
15  
(Down)  
Contact  
LIMIT SWITCH  
ASSEMBLY  
14  
Brown  
Wire  
12  
D N  
Grey  
Wire  
U P  
Drive  
Gear  
Center Limit  
Contact  
(Up)  
Contact  
Yellow  
Wire  
KEY PART  
NO. NO.  
KEY PART  
NO. NO.  
DESCRIPTION  
DESCRIPTION  
11  
41D3058  
Universal replacement motor and  
bracket assembly  
Complete with: Motor, worm,  
bracket, bearing assembly, RPM  
sensor  
Cover - 1/2 h.p.  
Helical gear and retainer w/grease  
Limit switch assembly  
1
2
31D380  
Sprocket cover  
41C4220A Gear and sprocket assy.  
Complete with:  
Spring washer  
Thrust washer  
Retaining ring  
Bearing plate  
12  
13  
14  
15  
16  
17  
18  
19  
41D328-4  
41A2818  
41D3452  
Roll pins (2)  
41C4398A RPM sensor assembly  
Drive gear and worm gear  
Helical gear w/retainer and  
grease  
Drive/worm gear kit w/grease  
Roll pins (2)  
Line cord  
End panel  
Light socket  
Lens  
Capacitor - 1/2 h.p.  
Capacitor bracket  
Terminal block w/screws  
41C4246  
41A2826  
41A2822A  
41A5021-3B Receiver logic board assy.  
Complete with:  
Wire harness assy. w/plug  
Shaft bearing kit  
Interrupter cup assy.  
3
41A2817  
4
5
6
7
8
9
10  
41B4245  
41A4352  
175B88  
108D48-2  
30B363  
12A373  
41A3150  
Logic board  
End panel w/all labels  
End panel w/all labels  
NOT SHOWN  
Opener assembly hardware kit  
(includes screws not designated by a  
number in illus.)  
20  
41A3691  
41A2825  
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Accessories  
Sears offers many useful accessories for your garage door opener. They are illustrated below with  
Sears model numbers and descriptions  
Outside Trolley Release:  
SECURITYCompact  
18752  
18792  
3-Function Remote Control:  
Required for a garage with NO  
access door.  
With loop for attaching key ring.  
(Available August, 1997)  
SECURITY3-Function Remote  
Control:  
18756  
18754  
Outdoor Key Switch:  
Includes visor clip.  
Opens the garage door  
automatically from outside when  
remote control is not handy.  
18790  
18795  
SECURITYSingle-Function  
Remote Control:  
Includes visor clip.  
8 ft. Rail Extension:  
To allow an 8 foot door to open fully.  
(Available May, 1997)  
SECURITYKeyless Entry:  
Enables homeowner to operate garage  
door opener from outside by entering a  
password. Also can add a temporary  
password for visitors or service persons.  
This temporary password can be limited  
to a programmable number of hours or  
entries. (Available May, 1997)  
18753  
18785  
10 ft. Rail Extension:  
To allow a 10 foot door to open fully.  
Door Clearance Brackets:  
(For Sectional Doors Only)  
Replace top brackets and rollers  
on door to reduce height of door  
travel. For use when installing  
opener in garage with low  
headroom clearance.  
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Index  
Access Door/Outside Key Release Accessory...............................................................................................4, 5  
Chain Tension..............................................................................................................................................4, 5, 11  
Electrical Safety Warnings........................................................................................................................2, 20, 31  
Garage Door  
Testing for balance, binding and sticking...................................................................................................3, 28, 31  
Determining high point of travel:  
Sectional door...................................................................................................................................................12  
One-piece door.................................................................................................................................................13  
Disabling existing locks....................................................................................................................................3, 11  
Door clearance brackets (for garages with low headroom) ...........................................................................12, 38  
Force controls  
Adjustment procedures.................................................................................................................................... 29  
Problems that might require force adjustments ..........................................................................................34, 35  
Safety warnings ..........................................................................................................................................29, 31  
Door hardware.....................................................................................................................3, 9, 11, 12, 18, 31, 32  
Maintenance instruction label ........................................................................................................................11, 28  
Reinforcement requirements ...........................................................................................................................4, 24  
Removing of all ropes.......................................................................................................................................3, 11  
Possible door damage...................................................................................................................................16, 24  
Travel limits  
Adjustment procedures.....................................................................................................................................28  
Problems that might require limit adjustments............................................................................................34, 35  
Safety warnings ..........................................................................................................................................28, 31  
Manual (Emergency) Release Rope & Handle  
Lockout feature....................................................................................................................................................32  
Manual disconnect...............................................................................................................................................32  
Safety warnings .................................................................................................................................11, 19, 31, 32  
Opener Terminals  
Door control connections.....................................................................................................................................18  
Safety reversing sensor connections...................................................................................................................23  
Operational Noise  
Sprocket noise.....................................................................................................................................................11  
Vibration noise (isolator kit) .................................................................................................................................34  
Receiver and Remote Control  
Programming the receiver ...................................................................................................................................33  
Erasing all codes .................................................................................................................................................33  
Activating other openers......................................................................................................................................33  
Safety warning.....................................................................................................................................................33  
Problems with remote control operation ..............................................................................................................34  
Safety Reverse Test Procedure..........................................................................................................................30  
Testing required.................................................................................................................................11, 30, 34, 35  
Safety reverse system problems  
Securing header bracket to wall .......................................................................................................................12  
Adjusting travel limits........................................................................................................................................28  
Applying excessive force on the door...............................................................................................................29  
Buckling or uneven floor .................................................................................................................................4, 5  
Safety Warnings.........................................................2, 3, 9, 11, 12, 16, 18, 19, 20, 21, 24, 28, 29, 30, 31, 32, 33  
User Instruction Label for garage wall ........................................................................................................11, 18  
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®
OWNER’S  
MANUAL  
GARAGE DOOR OPENER  
SERVICE AND REPAIR PARTS  
CALL 1-800-665-4455*  
Model No.  
139.18847  
139.18857  
Keep this number handy should you require a service call or need  
to order repair parts. If ordering parts make sure you have the  
name, make and model no. of the merchandise and the name and  
number of the part you wish to order.  
To purchase a Sears Maintenance Agreeement – ask any salesperson  
or call Sears Service today.  
* If calling locally, please use one of the following numbers:  
Regina  
-
-
-
-
-
-
-
566-5124  
333-5740  
744-4900  
454-2444  
894-7590  
738-4440  
420-8211  
Montreal  
Toronto  
Halifax  
Kitchener  
Ottawa  
Vancouver  
The model number  
label is located under  
the light lens on the  
left side panel of your  
opener.  
SEARS WARRANTY  
FULL 90-DAY WARRANTY ON GARAGE DOOR OPENER  
When the garage door opener is installed, adjusted and operated in  
accordance with our instructions, Sears will, for a period of 90 days from the  
date of purchase, repair any defect in workmanship in the garage door  
opener at no charge.  
When requesting  
service or ordering  
parts, always provide  
the following  
LIMITED WARRANTY  
From the 91st day until one year from the date of purchase, Sears will  
furnish replacement parts for any defective parts, free of charge. You pay  
for labor.  
information:  
LIMITED WARRANTY ON MOTOR  
1/2 HP Motor: After 1 year and through 5 years, Sears will furnish  
replacement parts for any defective parts in motor, free of charge. You pay  
for the labor.  
Product Type  
Model Number  
Part Number  
WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE  
NEAREST SEARS STORE OR SERVICE CENTER  
This warranty gives you specific legal rights, and you may also have other  
rights which vary from province to province.  
Part Description  
SEARS CANADA, INC., TORONTO, ONTARIO M5B 2B8  
© 1997, Sears Canada, Inc.  
114A2147C  
All Rights Reserved  
Printed in Mexico  
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