8550 Manual
Page 1
Belt Drive Garage Door Opener Model 8550 FOR RESIDENTIAL USE ONLY Write down the following information for future reference: Serial Number: Date of Purchase: ■ Please read this manual and the enclosed ... for installation instructions. . www.liftmaster.com The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 Contents BELT DRIVE GARAGE DOOR OPENER.. 1 PREPARATION 2 ASSEMBLY 4 INSTALLATION 6-13 INSTALL THE DOOR CONTROL.....14-16 INSTALL THE PROTECTOR SYSTEM 17-20 POWER 21-22 ADJUSTMENT 23-25 BATTERY BACKUP 26-27 OPERATION 28 FEATURES 29...
Belt Drive Garage Door Opener Model 8550 FOR RESIDENTIAL USE ONLY Write down the following information for future reference: Serial Number: Date of Purchase: ■ Please read this manual and the enclosed ... for installation instructions. . www.liftmaster.com The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 Contents BELT DRIVE GARAGE DOOR OPENER.. 1 PREPARATION 2 ASSEMBLY 4 INSTALLATION 6-13 INSTALL THE DOOR CONTROL.....14-16 INSTALL THE PROTECTOR SYSTEM 17-20 POWER 21-22 ADJUSTMENT 23-25 BATTERY BACKUP 26-27 OPERATION 28 FEATURES 29...
8550 Manual
Page 26
... opener. 1.2 Open the light lens on battery power or will take 24 hours to fully charge. Battery Backup To reduce the risk of FIRE or INJURY to persons: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Use ONLY LiftMaster part # 485LM for replacement battery. • Do NOT dispose of the...
... opener. 1.2 Open the light lens on battery power or will take 24 hours to fully charge. Battery Backup To reduce the risk of FIRE or INJURY to persons: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Use ONLY LiftMaster part # 485LM for replacement battery. • Do NOT dispose of the...
8550 Manual
Page 27
...LED: The garage door opener's 12V battery needs to operate during a power outage. NOTE: Door operation may be replaced. Please call for an extended period of normal operation during battery backup mode. 27 Battery Backup BATTERY STATUS LED NOTE: The Battery Status LED is most visible with beep..., sounding every 30 seconds, indicates the battery is low. ORANGE LED: The garage door opener has lost power...
...LED: The garage door opener's 12V battery needs to operate during a power outage. NOTE: Door operation may be replaced. Please call for an extended period of normal operation during battery backup mode. 27 Battery Backup BATTERY STATUS LED NOTE: The Battery Status LED is most visible with beep..., sounding every 30 seconds, indicates the battery is low. ORANGE LED: The garage door opener has lost power...
8550 Manual
Page 37
... 37 for 8 foot door Belt - Tucson, AZ 85706 For installation and service information call: 1-800-528-9131 Or visit us online at: www.liftmaster.com Before calling, please have access to : The Chamberlain Group, Inc. 6050 S. Country Club Rd. for 10 foot door 2 Belt Pulley Bracket ... 3 feet (.9 m) 2-conductor wire 10 11 8 Straight Door Arm 178B34 9 White and Red/White Wire 41C5141-1 10 3V2016 Lithium Battery 10A19 11 Battery Backup 485LM Contact Information Address repair parts order to your garage door opener while calling. If you have the model number of the garage door...
... 37 for 8 foot door Belt - Tucson, AZ 85706 For installation and service information call: 1-800-528-9131 Or visit us online at: www.liftmaster.com Before calling, please have access to : The Chamberlain Group, Inc. 6050 S. Country Club Rd. for 10 foot door 2 Belt Pulley Bracket ... 3 feet (.9 m) 2-conductor wire 10 11 8 Straight Door Arm 178B34 9 White and Red/White Wire 41C5141-1 10 3V2016 Lithium Battery 10A19 11 Battery Backup 485LM Contact Information Address repair parts order to your garage door opener while calling. If you have the model number of the garage door...
8550 Manual
Page 38
Repair Parts Garage Door Opener Parts 11 9 4 3 1 12 5 2 10 4 3 7 8 6 38 DESCRIPTION 1 Sprocket and Sprocket Cover with Screws 2 End Panel with labels, battery cover and light socket 3 Light Lens 4 Light Socket 5 Transformer 6 Cover 7 Motor and Travel Module 8 Travel Module 9 End Panel with all labels and light socket 10 Receiver Logic Board 11 Line Cord 12 Filter Board with Screws NOT SHOWN Wire Harness with Screws Battery Backup PART NUMBER 41C589-2 41D217 41A7562 41C279 41A7635 41A7619 41D1739-1 41A7114-7 41D216 45DCT 41B135 41B7611 41B7418 485LM
Repair Parts Garage Door Opener Parts 11 9 4 3 1 12 5 2 10 4 3 7 8 6 38 DESCRIPTION 1 Sprocket and Sprocket Cover with Screws 2 End Panel with labels, battery cover and light socket 3 Light Lens 4 Light Socket 5 Transformer 6 Cover 7 Motor and Travel Module 8 Travel Module 9 End Panel with all labels and light socket 10 Receiver Logic Board 11 Line Cord 12 Filter Board with Screws NOT SHOWN Wire Harness with Screws Battery Backup PART NUMBER 41C589-2 41D217 41A7562 41C279 41A7635 41A7619 41D1739-1 41A7114-7 41D216 45DCT 41B135 41B7611 41B7418 485LM
