Chamberlain 1280-298LMC owner manual

Garage Door Opener

Model 1280-298LMC

- 1/2 HP -

For Residential Use Only

Owner's Manual

■Please read this manual and the enclosed safety materials carefully!

■Fasten the manual near the garage door after installation.

■The door WILL NOT CLOSE unless the Protector System®is connected and

properly aligned.

■Periodic checks of the opener are required to ensure safe operation.

■The model number label is located under the light lens on the left side of

your opener.

Contents

Main Start by reviewing these important safety alert symbols serious injuries or death Mechanical Electrical Read the instructions carefully. You'll Need Tools WARNING CAUTION Ropes left on a garage door could cause someone to become entangled and killed. Sectional Door Installation One-Piece Door Installation without Track FINISHED CEILING Support bracket & fastening hardware is required. See page 13. One-Piece Door with Track Carton Inventory ASSEMBLY STEP 1 Attach the T-Rail To the Opener Figure C Figure A USE ONLY THESE SCREWS! IMPORTANT INST ALLATION INSTRUCTIONS To reduce the risk of severe injury or death to persons: An improperly balanced door may not reverse and could result in severe injury or death. Ropes connected to a garage door can cause entanglement and death. Proceed to Step 2, page 10. SECTIONAL Doors and ONE-PIECE Door With Track Installation Section: Pages 8 23 Installation Step 1 Determine Header Bracket Location The door might not reverse when required, and could cause serious injury or death. Proceed to Step 2, page 10. ONE-PIECE Door Without Track Read the Safety Instructions on page 8. They also apply to doors without tracks. Fasten the Header Bracket to the Wall Fasten the Header Bracket to the Ceiling Installation Step 2 Install the Header Bracket , Liftmaster Synchro Drive Tee Rail to Header Bracket 5/16/92 Installation Step 3 Attach the T-rail to the Header Bracket Installation Step 4 Position the Opener SECTIONAL Door & ONE-PIECE Door with Track ONE-PIECE Door without Track You will need help at this point if the ladder is not tall enough. Installation Step 5 Hang the Opener each The opener could fall and injure someone if it is not properly secured. Figure 1 Installation Step 6 Install the Door Control Panel Do not overtighten. Hardware Shown Actual Size Installation Step 7 Install the Lights and the Lenses Installation Step 8 Attach the Manual Release Rope and Handle The rope knot could become untied and you could fall. Installation Step 9 and NOT To prevent electrocution or fire, Electrical Requirements The ProtectorSystem must Installation Step 10 Install the Safety Reversing Sensor Garage door track installation (preferred): Wall installation: Floor installation: Figure 6 Figure 5 glows steadily sending eye glows steadily, Installation Step 11 Fasten Door Bracket Figure 2 Note the correct UP placement as stamped inside the bracket. SECTIONAL Door Installation Procedure All ONE-PIECE Door Installation Procedure Installation Step 12 Connect Door Arm to Trolley Hole Alignment Alternative Figure 3 above Can/DoorArmToTrolley 1 pc All ONE-PIECE Doors Adjustment Procedures for One-Piece Doors Adjustment Step 1 Adjust the UP and DOWN Limits down reverses up Adjustment Step 2 Adjust the Force reverses at least up Adjustment Step 4 Test the Safety Reverse System Important safety check: Adjustment Step 3 Test the Protector System IMPORTANT SAFETY INSTRUCTIONS To reduce the risk of severe injury or death to persons: Limit and force adjustment controls Maintenance Schedule must MUST Operation of Your Opener To turn off: To activate: Automatic Light Feature, when the door is fully closed. Receiver and Remote Control Programming SECURITY NOTE: Open/Close/Stop operation counts as 1 function. flash once. 3. press and hold a remote push button. Having a Problem? Situation Probable Cause & Solution Having a Problem? (continued) Situation Probable Cause & Solution Page Repair Parts Accessories Available For Your Opener Required To Add the Keyless Entry With the door closed, hold Index 2000, The Chamberlain Group, Inc. 114A2478 All Rights Reserved Printed in Mexico LIFT-MASTER SERVICE IS ON CALL 1-800-654-4736 HOW TO ORDER REPAIR PARTS 1-800-654-4736 LIFT-MASTER GARAGE DOOR OPENER FIVE-YEAR LIMITED WARRANTY