Table of Contents
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Please read this manual and the enclosed safety materials carefully!
Fasten the manual near the garage door after installation.
The door WILL NOT CLOSE unless the Protector System
properly aligned
Periodic checks and adjustment of the opener are required to ensure safe
operation.
The model number label is located under the light lens on the left side panel
of your opener as shown.
Garage Door Opener
OWNER'S MANUAL
Model 1280
- 1/2 HP -
For Residential Use Only
TM
The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue
Elmhurst, Illinois 60126-1196
Complies with UL 325
Regulations effective
January 1, 1993
®
is connected and
®
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Table of Contents
Related Manuals for Chamberlain 1280 - 1/2 HP
Summary of Contents for Chamberlain 1280 - 1/2 HP
- Page 1 The Chamberlain Group, Inc. A DUCHOSSOIS ENTERPRISE 845 Larch Avenue Elmhurst, Illinois 60126-1196 Complies with UL 325 Regulations effective January 1, 1993 ® Garage Door Opener OWNER'S MANUAL Model 1280 - 1/2 HP - For Residential Use Only Please read this manual and the enclosed safety materials carefully! Fasten the manual near the garage door after installation.
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Page 2: Table Of Contents
Contents Page Contents Page A review of safety alert symbols ......2 The Protector ® System safety reversing sensor information....17 Safety information regarding garage door locks and ropes..............3 Install the safety reversing sensor ....18,19 Testing your garage door for sticking, binding Fasten door bracket (sectional door)....20 and balance ............3 Fasten door bracket (one-piece door) ....21... -
Page 3: Safety Information Regarding Garage Door Locks And Ropes
CAUTION WARNING To avoid damage to the garage door and An unbalanced garage door might not reverse when required and someone under the door opener, disable locks before installing and could be seriously injured or killed. operating the opener. Use a wood screw or nail to hold locks in the "open"... -
Page 4: Illustration Of Sectional Door Installation
Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. SECTIONAL Door or ONE-PIECE Door with Track Installation FINISHED CEILING Support bracket & fastening hardware is required. Horizontal and vertical reinforcement See page 13. -
Page 5: Carton Inventory
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 is listed on page 4. LO CK LI GH T Belt Cap Retainer Remote Control... -
Page 6: Assembly Section: Pages
ASSEMBLY STEP 1 CAUTION Attach the T-Rail To the Opener To fasten rail, use only those screws mounted The Chamberlain Group, Inc. in the top of the opener. Any other screws will Liftmaster Synchro Drive cause serious damage to the opener. -
Page 7: Attach Belt Cap Retainer
ASSEMBLY STEP 3 WARNING Attach the Belt Cap Retainer Serious injury can result if fingers become entangled in moving opener sprocket. Attach sprocket cover securely. Never operate opener • Position the belt cap retainer over the opener while your hand is near the opener sprocket. sprocket so the two holes in cap align with the two holes in mounting plate. -
Page 8: Installation Section: Pages
Installation Section: Pages 8 – 23 Installation Step 1 WARNING Determine Header Bracket Location If the header bracket is not rigidly fastened to Installation procedures vary according to a structural support on the header wall or garage door types. Follow the instructions ceiling, the safety reverse system may not which apply to your door. -
Page 9: One-Piece Door
ONE-PIECE Door Without Track Read the Safety Instructions on page 8. They also apply to doors without tracks. Unfinished Header Wall Ceiling Vertical Centerline • Close the door and mark the inside vertical centerline of Structural Supports your garage door. Extend the line onto the header wall above door. -
Page 10: Install The Header Bracket
You can attach the header bracket either to the Installation Step 2 wall above the garage door, or to the ceiling. Follow the instructions which will work best for Install the Header Bracket your particular requirements. Fasten the Header Bracket to the Wall Mounting New Header Bracket 10/16/91 - 10/26/91 - 4/5/92 •... -
Page 11: Attach The T-Rail To Header Bracket
Installation Step 3 Attach the T-rail to the Header Bracket • Position the opener on the garage floor below the The Chamberlain Group, Inc. header bracket. Use packing material as a Liftmaster Synchro Drive protective base. Header Wall Attach Tee Rail to Header Brack If the door spring is in the way you'll need help. -
Page 12: Position The Opener
Installation Step 4 CAUTION Position the Opener To prevent damage to steel, aluminum, Follow instructions which apply to your door fiberglass or glass panel doors, do not rest the type as illustrated. opener on the door without using a 2x4. SECTIONAL Door &... -
Page 13: Hang The Opener
The Chamberlain Group, Inc. Installation Step 5 WARNING Hang Opener Chassis Hang the Opener Liftmaster Synchro Drive (Belt) The opener could fall and injure someone if it 3/13/92 is not properly secured. Fasten the opener securely to structural supports of the garage. -
Page 14: Install The Multi-Function Door Control Panel
• Remember to affix the User Safety Instruction Outside Keylock Accessory Connections label to the wall near the door control, and the The Chamberlain Group, Inc. Maintenance Instruction label in a prominent To opener terminal screws: white to 2; white/red to 1 location on the inside of the garage door. -
Page 15: Install The Lights And Lenses
Installation Step 7 Install the Lights and the Lenses • 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 •... -
Page 16: Electrical Requirements
Installation Step 9 WARNING Electrical Requirements To prevent electrocution or fire , installation and wiring must be in compliance with local To reduce the risk of electric shock, your garage electrical and building codes. door opener has a grounding type plug with a third grounding pin. -
Page 17: The Protector System
The Protector System ® Information you'll need before you begin the installation of the safety reversing sensor. The safety reversing sensor must be connected WARNING and aligned correctly before the garage door opener will move in the down direction. This is a required safety device and cannot be disabled. -
Page 18: Install The Safety Reversing Sensor
Figure 2 Installation Step 10 Garage WALL or DOOR TRACK Installation Install the Safety Reversing Sensor (Receiving and Sending Eyes) Mounting Bracket With Square Holes "C" Wrap Figures 2, 3 and 4 show recommended assembly #10-32x3/8" of bracket(s) and "C" wrap based on the wall Screws #10 - 32 installation of the sensors on each side of the... -
Page 19: Wing Nut
• Check for an open wire to the receiving eye. alignment is required. The Chamberlain Group, Inc. 3. If the receiving eye indicator light is dim, realign • Loosen the sending eye wing nut and re-adjust, Attaching Sensor to "C"... -
Page 20: Fasten Door Bracket (Sectional Door)
Installation Step 11 CAUTION Fasten Door Bracket To prevent damage to steel, aluminum, Follow instructions which apply to your door fiberglass or glass panel doors, always type as illustrated below or on page 21. reinforce the inside of the door both vertically and horizontally with an angle iron. -
Page 21: Fasten Door Bracket (One-Piece Door)
All ONE-PIECE Door Installation Procedure Please read and comply with the warnings and reinforcement instructions on page 20. They apply to one-piece doors also. Header Wall — Finished Ceiling — 2x4 Support Header Bracket Horizontal and vertical Door Optional reinforcement is needed for Bracket Placement lightweight garage doors... -
Page 22: Connect Door Arm To Trolley (Sectional Door)
Installation Step 12 Connect Door Arm to Trolley Follow instructions which apply to your door type as illustrated below and on page 23. SECTIONAL Doors Only Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley. -
Page 23: Connect Door Arm To Trolley (One-Piece Door)
All ONE-PIECE Doors Door Assemble the Door Arm: Bracket Ring • Fasten the straight and curved door arm sections Fastener Nuts Lock together to the longest possible length (with a 2 or 5/16"-18 Washers 3 hole overlap). 5/16" Clevis Pin •... -
Page 24: Adjustment Section: Pages
Adjustment Section: Pages 24 – 26 Adjustment Step 1 WARNING Adjust the UP and DOWN Limits Improper adjustment of the travel limits will Do not make any limit adjustments until the interfere with the proper operation of the safety Safety Reversing Sensors are completely reverse system. -
Page 25: Force Adjustments
Adjustment Step 2 WARNING Adjust the Force Too much force on the door will interfere with the proper operation of the safety reverse system. Force adjustment controls are located on the right The door might not reverse properly when panel of the opener. Force adjustment settings required and could seriously injure or kill regulate the amount of power required to open and someone under it. -
Page 26: Test The Protector System
Adjustment Step 3 WARNING Test The Protector System ® Without a properly working safety reversing sensor, persons (particularly children) could be • Press the remote control push button to open the seriously injured or killed if trapped by a closing door. -
Page 27: Operation Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS WARNING WARNING WARNING WARNING To reduce the risk of severe injury or death to persons: 1. READ AND FOLLOW ALL INSTRUCTIONS. 2. Do not permit children either to operate or to play with the opener. Keep remote control in a location inaccessible to children. -
Page 28: Operation Of Your Opener
Operation of Your Opener Activate the opener with any of the following: WARNING • The Remote Control Transmitter. Hold push button down until the door starts to move. Weak or broken springs could allow an open • The Door Control. Hold push bar down until the door to fall (either rapidly or unexpectedly), door starts to move. -
Page 29: Receiver & Remote Control Programming
Receiver & Remote Control Programming NOTICE: To comply with FCC rules, adjustment or modification of this receiver and/or transmitter are prohibited, except for changing the code WARNING setting or replacing the transmitter battery. THERE ARE NO OTHER USER SERVICEABLE PARTS. Children operating or playing with a garage door opener can injure themselves or others. -
Page 30: Having A Problem
Having a Problem? Situation Probable Cause & Solution The opener doesn't 1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light, operate from either check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.) the door control or 2. - Page 31 Having a Problem? (continued) Situation Probable Cause & Solution The door opens but 1. If the opener lights blink, check the safety reversing sensor. See page 19. won't close: 2. If the opener lights do not blink and it is a new installation, check the down force. See Adjustment Step 2, page 25.
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Page 32: Repair Parts, Rail Assembly
Repair Parts Rail Assembly Parts PART DESCRIPTION 1A995 Master link kit 41A3588 Belt pulley bracket 41B3869-1 Complete trolley assembly 109B33 Trolley clip 183B99 One-piece T-rail 41A3589 Full belt assembly 41B4103 Tensioner assembly 83A4 Rail grease Installation Parts LO CK LI GH T PART DESCRIPTION 41A4202A... -
Page 33: Repair Parts, Opener Assembly
Repair Parts Opener Assembly Parts 18 19 (Down) LIMIT SWITCH ASSY. Brown Contact Wire Grey Wire Drive Gear Center Limit (Up) Yellow Contact Contact Wire KEY PART PART NO. NO. DESCRIPTION DESCRIPTION 41A4371 Belt cap retainer 30B363 Capacitor – 1/2 h.p. 41A4885 Gear and sprocket assy., 12A373... -
Page 34: Accessories
Accessories Available For Your Opener Model 1702 Outside Quick Release: Model 81LM "Smart" Remote Control: Required for a garage with NO Includes visor clip. access door. Model 60 Outside Keylock: Model 61LM Single-Function Standard Size Opens the garage door Remote Control: automatically from outside when Includes visor clip. -
Page 35: Index
Index Access Door/Outside Quick Release Accessory..................31, 34 Electrical Safety Warnings........................7, 16, 27 Garage Door Testing for balance, binding and sticking....................3, 24, 27 Determining high point of travel: Sectional door..............................8 One-piece door ..............................9 Disabling existing locks............................3, 7 Force controls Adjustment procedures.............................25 Problems that might require force adjustments ..................30, 31 Safety warnings ............................25, 27 Door hardware ..........................3, 7, 8, 14, 27, 28... -
Page 36: How To Order Repair Parts
LIFT-MASTER GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY Chamberlain/Lift-Master (“Seller”) warrants to the first retail purchaser of this product that it is free from defect in materials and/or workmanship for a period of one year from the date of purchase. The proper operation of this product is dependent on your compliance with the Owner’s Manual instructions regarding installation, operation, maintenance and testing.