8557 Manual
Page 1
...installing the garage door opener on a one -piece door, visit www.liftmaster.com for future reference: Serial Number: . Write down the following information for installation instructions. ELITE Series Garage Door Opener Models • 8550 - DC Belt Drive with Battery Backup • 8557 - 3/4 hp Belt Drive FOR RESIDENTIAL USE ONLY ■ Please read...33 To Open the Door Manually . . . . . 34 Maintenance 34 Troubleshooting 35-36 Accessories 37 Warranty 38 Repair Parts 39-41 * If applicable www.liftmaster.com The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196
...installing the garage door opener on a one -piece door, visit www.liftmaster.com for future reference: Serial Number: . Write down the following information for installation instructions. ELITE Series Garage Door Opener Models • 8550 - DC Belt Drive with Battery Backup • 8557 - 3/4 hp Belt Drive FOR RESIDENTIAL USE ONLY ■ Please read...33 To Open the Door Manually . . . . . 34 Maintenance 34 Troubleshooting 35-36 Accessories 37 Warranty 38 Repair Parts 39-41 * If applicable www.liftmaster.com The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196