LiftMaster 8550 8550 Manual - Page 37

Repair Parts Rail Assembly Parts DESCRIPTION 1 Belt - for 7 foot door Belt - for 8 foot door Belt - for 10 foot door 2 Belt Pulley Bracket 3 Master Link 4 One-Piece Rail 7 feet (2.1 m) One-Piece Rail 8 feet (2.4 m) One-Piece Rail 10 feet (3 m) 5 Trolley Assembly 6 Tensioner Assembly 7 Trolley Threaded Shaft PART NUMBER 41A5434-11 41A5434-13 41A5434-14 41B5424 4A1008 2777BD 2778BD 2770BD 41B3869-3A 41B4103 109B48 3 6 2 4 7 5 1 Installation Parts 3 2 1 DESCRIPTION 1 Curved Door Arm PART NUMBER NOTICE 178B35 2 Door Bracket with Clevis Pin and Fastener 41A5047-1 CEILING MOUNT ONLY UP 4 7 3 Emergency Release Rope 41A2828 6 and Handle 4 Header Bracket with Clevis 41A5047-2 5 Pin and Fastener 5 Remote Control Visor Clip 29B137 9 6 Safety Sensor Bracket 41A5266-1 7 Safety Sensor Kit 41A5034 8 Receiving and sending sensors with 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: The Chamberlain Group, Inc. 6050 S. Country Club Rd. 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 the model number of the garage door opener. If you are calling about a Troubleshooting issue, it is recommended that you have access to your garage door opener while calling. If you are ordering a repair part please have the following information: part number, part name, and model number. 37