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®
TM
Garage Door Opener
Model 1280-298LMC
- 1/2 HP -
For Residential Use Only
Owner's Manual
n Please read this manual and the enclosed safety materials carefully!
n Fasten the manual near the garage door after installation.
®
n The door WILL NOT CLOSE unless the Protector System is connected and
properly aligned.
n Periodic checks of the opener are required to ensure safe operation.
n The model number label is located under the light lens on the left side of
your opener.
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CONTENTS PAGE CONTENTS PAGE A review of safety alert symbols ...............................2 Electrical requirements .........................................16 ® You'll need tools........................................................3 The Protector System safety reversing Safety information regarding garage door locks sensor information ................................................17 and ropes ...............................................................3 Install the safety reversing se
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1 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 Tape Measure Wire Cutters Drill Claw Hammer 3/16", 5/16" and 5/32" Drill Bits Pliers 1/2" and 7/16" Sockets Stepladder Screwdriver and Wrench Adjustable End Wrench WARNING CAUTION An unbalanced garage door might not reverse To avoid damage to the garage door and when required and someone under the door opener, disable locks before in
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— — — — — — — — Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. You may find it helpful to refer back to this page as you proceed with the installation of your opener. FINISHED CEILING Support bracket & Sectional Door Installation fastening hardware is required. See page 13. Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See p
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LIGHT LOCK 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 installation is also listed below. Remote Control Transmitter Visor Clip SECURITY✚ SECURITY✚ 3-Channel Motion Detecting Keyless Entry Remote Control (2) Door Control Panel Styrofoam Belt Belt Cap Retainer Light Lens (2) 2-Conductor Bell Wire White & White/Red One-Piec
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Assembly Section: Pages 6 - 7 ASSEMBLY STEP 1 CAUTION Attach the T-Rail To the Opener To fasten rail, use only those screws mounted in the top of the opener. Any other screws will cause serious damage to the opener. Washered Screw 5/16"-18x1/2" Styrofoam • Remove the two washered screws mounted in top of opener. • Align T-rail and styrofoam over opener sprocket. • Cut tape from T-rail, belt and styrofoam. Belt • REMOVE STYROFOAM. USE ONLY THIS TYPE AND SIZE T-Rail Hole SCREW • Insert both washer
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Assembly Step 3 WARNING Attach the Belt Cap Retainer Serious injury can result if fingers become entangled in moving opener sprocket. Attach belt cap retainer securely. Never operate opener while your hand is near the opener sprocket. • Position the belt cap retainer over the opener sprocket so the two holes in cap align Hex Screws # 8 x 3/8" with the two holes in mounting plate. Attach Belt Cap with #8x3/8" hex screws provided. Retainer Opener Sprocket Mounting Plate Hardware Shown Actual Si
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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 garage a structural support on the header wall or door types. Follow the instructions which apply to ceiling, the safety reverse system may not your door. work properly (see page 26). The door might not reverse when required, and could cause serious injury or death. The garage door springs, cables, pulleys, SE
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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 2x4 • Close the door and mark the Structural inside vertical centerline of Supports your garage door. Extend the line onto the header wall above door. If headroom clearance is minimal, you can install the 2x4 Vertical header bracket on the ceiling. Centerline of See page 10. Garage Door OPTIONAL CEILING MOUNT • If you need to install the
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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 • Center the bracket on the vertical guideline with • Mark either set of bracket holes (do not use the the bottom edge of the bracket on the horizontal holes designated for ceiling mount). Drill 3/16" pilot line as shown (with the arrow poin
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Installation Step 3 Attach the T-rail to the Header Bracket , • Position the opener on the garage floor below the Liftmaster Synchro Drive header bracket. Use packing material as a Header Wall protective base. Tee Rail to Header Bracket Header If the door spring is in the way you'll need help. 5/16/92 Bracket Have someone hold the opener securely on a temporary support to allow the T-rail to clear the spring. Belt Pulley Bracket • Position the belt pulley bracket against the header bracket. • Al
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Installation Step 4 CAUTION Position the Opener To prevent damage to steel, aluminum, Follow instructions which apply to your door type fiberglass or glass panel doors, do not rest the as illustrated. opener on the door without using a 2x4. SECTIONAL Door & ONE-PIECE Door with Track A 2x4 laid flat is convenient for setting an ideal door-to-T-rail distance. • Raise the opener onto a stepladder. 2x4 Laid Flat T-rail You will need help at this point if the ladder is not tall enough. • Open the d
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Installation Step 5 WARNING Hang the Opener 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 Figure 1 bracket to structural supports before installing the opener. The bracket and fastening hardware are not Structural su
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LOCK LIGHT LOCK LIGHT LOCK LIGHT Installation Step 6 WARNING Install the Door Control Panel DO NOT CONNECT TO LIVE ELECTRICAL WIRING. CONNECT ONLY TO 24 VOLT LOW VOLTAGE WIRES. CONNECTION TO LIVE WIRES OR HIGHER Locate the door control within sight of the door at a VOLTAGE MAY CAUSE SERIOUS INJURY FROM minimum height of 5 feet where small children cannot SHOCK, BURN OR ELECTROCUTION. reach, and away from all moving parts of the door and Children operating or playing with a garage door door hardw
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NOTICE Installation Step 7 Install the Lights and the Lenses Lens Guide • Install a 75 watt maximum light bulb in the socket. 75 Watt The light will turn ON and remain lit for Maximum Light Bulb approximately 4-1/2 minutes when power is connected. Then the light will turn OFF. ens ab • If the bulbs burn out prematurely due to vibration, replace with a "Garage Door Opener" bulb. Watt ximum • Slide lenses into guides. Snap bottom tabs into ht Bulb lens slots. Lens Slot • For convenience, the lens
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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 Do NOT use an extension cord, 2-wire adapter, grounding pin. This plug will only fit into a grounding or change the plug in any way to make it fit type outlet. your outlet. If the plug doesn't fit into the outlet you have, c
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® The Protector System IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR WARNING Without a properly working safety reversing The safety reversing sensor must be connected sensor, persons (particularly children) could be and aligned correctly before the garage door injured or killed by a closing garage door. Read opener will move in the down direction. This is a and follow all instructions. required safety device and cannot be disabled. To protect small children, install the safety reversin
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Figure 2 DOOR TRACK MOUNT (Right Side) Installation Step 10 Install the Safety Reversing Sensor Door Track INSTALLING THE BRACKETS Lip Be sure power to the opener is disconnected. Indicator light Install and align the brackets so the sensors will face each other across the garage door, with the beam from 4 – 6" above the floor. Sensor They may be installed in one of three ways, as Bracket Lens follows. Garage door track installation (preferred): • Slip the curved arms over the rounded edge of
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MOUNTING AND WIRING THE SAFETY SENSORS Figure 5 • Slide a 1/4"-20x1/2" carriage bolt head into the slot Wing nut on each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension. See Figure 5. 1/4"-20x1/2" Carriage bolt • Finger tighten the wing nuts. Lens • Run the wires from both sensors to the opener. Use insulated staples to secure wire to wall and ceiling. TROUBLESHOOTING THE SAFET
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Installation Step 11 WARNING Fasten Door Bracket Follow instructions which apply to your door type To prevent damage to steel, aluminum, as illustrated below or on page 21. fiberglass or glass panel doors, always reinforce the inside of the door both vertically and horizontally with angle iron. 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
