8557 Manual
Page 1
ELITE Series Garage Door Opener Models • 8550 - The Timer-to-Close is to be used ONLY with Battery Backup • 8557 - 3/4 hp Belt Drive FOR RESIDENTIAL USE ONLY ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the ... 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 DC Belt Drive with sectional doors. Write down the following information for installation...
ELITE Series Garage Door Opener Models • 8550 - The Timer-to-Close is to be used ONLY with Battery Backup • 8557 - 3/4 hp Belt Drive FOR RESIDENTIAL USE ONLY ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the ... 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 DC Belt Drive with sectional doors. Write down the following information for installation...
8557 Manual
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.... 1.4 Position the belt around the garage door opener sprocket. 1.5 Attach the sprocket cover over the sprocket. Model 8550 Washered Bolt 5/16"-18x1/2" Hex Screw #8x3/8" Model 8557 Washered Bolt 5/16"-18x1/2" Lock Nut Hex Screw #8x3/8" Hex Screw #8x3/8" (Packed with the previously removed bolts... the garage door opener. HARDWARE Washered Bolt 5/16"-18x1/2" (Mounted in the garage door opener) Model 8550 (2) Model 8557 (1) Lock Nut (Mounted in the garage door opener) Model 8557 (1) NOTE: ONLY use ONLY those bolts/fasteners mounted in the top of sprocket while operating opener. •...
.... 1.4 Position the belt around the garage door opener sprocket. 1.5 Attach the sprocket cover over the sprocket. Model 8550 Washered Bolt 5/16"-18x1/2" Hex Screw #8x3/8" Model 8557 Washered Bolt 5/16"-18x1/2" Lock Nut Hex Screw #8x3/8" Hex Screw #8x3/8" (Packed with the previously removed bolts... the garage door opener. HARDWARE Washered Bolt 5/16"-18x1/2" (Mounted in the garage door opener) Model 8550 (2) Model 8557 (1) Lock Nut (Mounted in the garage door opener) Model 8557 (1) NOTE: ONLY use ONLY those bolts/fasteners mounted in the top of sprocket while operating opener. •...
8557 Manual
Page 21
... to make a permanent connection through the 7/8 inch hole in the garage door opener into a grounding type outlet. Wiring through a filter board (8550 models manufactured before spade terminals. 1.5B Remove the power cord from electrocution or fire: • Be sure power is grounded. the white (neutral...) wire to local code): Wiring through a terminal block (8550 models manufactured after April 12, 2013 and all 8557 models): 1.1B Remove the motor unit cover screws and set aside. 1.3B Remove the attached green ground terminal. 1.4B...
... to make a permanent connection through the 7/8 inch hole in the garage door opener into a grounding type outlet. Wiring through a filter board (8550 models manufactured before spade terminals. 1.5B Remove the power cord from electrocution or fire: • Be sure power is grounded. the white (neutral...) wire to local code): Wiring through a terminal block (8550 models manufactured after April 12, 2013 and all 8557 models): 1.1B Remove the motor unit cover screws and set aside. 1.3B Remove the attached green ground terminal. 1.4B...
8557 Manual
Page 40
MODEL 8550 1 11 9 4 3 12b 12a 10 8 7 5 2 4 3 6 40 Description 1 Sprocket and Sprocket Cover with Screws 2 End Panel with battery cover and light socket 3 Light Lens 4 Light Socket 5 Transformer 6 ...
MODEL 8550 1 11 9 4 3 12b 12a 10 8 7 5 2 4 3 6 40 Description 1 Sprocket and Sprocket Cover with Screws 2 End Panel with battery cover and light socket 3 Light Lens 4 Light Socket 5 Transformer 6 ...
8557 Elite Series Users Guide Manual
Page 15
... 4A 4B 1 3B 5 6 7 15 Repair Parts NOTE: For additional parts not shown, visit www.liftmaster.com to download or print the full owner's manual. Model 8550 4B Motor w/Travel Module - DESCRIPTION 1 Light Lens 2 Receiver Logic Board - Model 8550 3B Travel Module - Model 8550 Receiver Logic Board - Model 8587 & 8557 4A Motor w/Travel Module - Model 8587...
... 4A 4B 1 3B 5 6 7 15 Repair Parts NOTE: For additional parts not shown, visit www.liftmaster.com to download or print the full owner's manual. Model 8550 4B Motor w/Travel Module - DESCRIPTION 1 Light Lens 2 Receiver Logic Board - Model 8550 3B Travel Module - Model 8550 Receiver Logic Board - Model 8587 & 8557 4A Motor w/Travel Module - Model 8587...