LiftMaster 8550WLB Owners Manual - Page 2

Table of Contents, Automatic Garage Door Opener Safety & Maintenance Guide

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Table of Contents Preparation 3 Carton Inventory: Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557WL, WLED, WLED-267, 85503 and 85503-267 6 Carton Inventory: Models 8587W, 8587WL, and 8580WLB 7 Assembly 8 Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, WLED, WLED-267, 85503, and 85503-267 8 Models 8587W, 8587WL, and 8580WLB 10 Installation 12 Install the Door Control 20 Install the Protector System 22 Power 26 Adjustments 28 Battery Backup 31 Operation 33 Maintenance 41 Troubleshooting 42 Accessories 44 Warranty 45 Automatic Garage Door Opener Safety & Maintenance Guide 46 Repair Parts 48 Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, 85503 and 85503-267 48 Models WLED and WLED-267 51 Models 8587W, 8587WL, and 8580WLB 53 2

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Table of Contents
Preparation
3
Carton Inventory: Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557WL, WLED,
WLED-267, 85503 and 85503-267
6
Carton Inventory: Models 8587W, 8587WL, and 8580WLB
7
Assembly
8
Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, WLED, WLED-267, 85503,
and 85503-267
8
Models 8587W, 8587WL, and 8580WLB
10
Installation
12
Install the Door Control
20
Install the Protector System
22
Power
26
Adjustments
28
Battery Backup
31
Operation
33
Maintenance
41
Troubleshooting
42
Accessories
44
Warranty
45
Automatic Garage Door Opener Safety & Maintenance Guide
46
Repair Parts
48
Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, 85503 and 85503-267
48
Models WLED and WLED-267
51
Models 8587W, 8587WL, and 8580WLB
53