Chamberlain 8550W User manual

  
           
     
            
        
   
         
  
        
  
         
     
         
        

  
   


  
 
        
    
       
 
        
 
     
 
    
    
 
 
  
 
 
 
 
 
        
  
         
    
     



 
       
myQ®Serial Number:
myQ®Serial Number Product S/N
Product S/N:
Date of Purchase:
/ /
     
                
             
 
                 
                
              



                  
                
      
             
               
   
 
            
                
                  
              
   



     
          
  
     
  
        
          
    
                
              
Check Signal Strength. If you see:
Wi-Fi signal is strong.
The garage door opener will
connect to your Wi-Fi network.
Wi-Fi signal is weak.
The garage door opener may connect to your
Wi-Fi network. If not, try one of the options
below to improve the Wi-Fi signal:
No Wi-Fi signal.
The garage door opener will not be able to
connect to your Wi-Fi network. Try one of the
options below to improve the Wi-Fi signal:
• Move your router closer to the garage door opener to minimize
interference from walls and other objects
• Buy a Wi-Fi range extender
       
            
           
  
    
               
         
             
        
          
       
             
            
       
        
            
  
           
              
     
              
            
               
            
      
               
             
              
   
Torsion
Spring
Extension
Spring
OR



 
3/16
5/32
5/16
7/16
1/2
5/8
9/16
1/4
7/16



     
     

             
              
                
           
  
   
  
   
   
 
     
 
   
     
 
  
    
   
          
        
    
  
   
  

   

  

         
           
        
           
         
  
  
       
    
AB
C
J
N
I
OP
Q
DE
F
H
GK
L
M
Not Provided
Not
Provided



      
             
              
                
           
   
  
   
  
   
   
 
     
 
   
  
   
 
  
    
   
           
       
    
  
  

   

  


      
         
       
          
     
     

           
        
           
         
           
         
        
   
  
       
    
AB
C
K
J
I
P
DE
F
H
G
L
M
N
Q
O
Not
Provided Not
Provided



       
       
 
           
        
     
              
   
                
     
         
            
              
                 

         
        
             
         
               
                 

         
               
Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, and WLED-267
Model 8557W
Washered Bolt
5/16"-18x1/2"
Hex Screw
#8x3/8"
Lock Nut
Hex Screw
#8x3/8"
(Packed with the
sprocket cover)
Lock Nut
(Mounted in the
garage door opener)
Model 8557W (1)
Washered Bolt
5/16"-18x1/2"
Hex Screw
#8x3/8"
HARDWARE
Washered Bolt 5/16"-18x1/2"
(Mounted in the garage door opener)
Models 8550W, 8550WL, 8550WLB,
8550WLB-267, WLED, and WLED-267 (2)
Model 8557W (1)



  
       
 
                  
     
                  

                 
                
    
Spring Trolley Nut
(To motor unit)
Nut ring
slot
Nut Ring Nut Ring
AFTER RELEASE
1-1/4"
(3.18 cm)
BEFORE
1"
(2.5 cm)
1
2
3



       
    
              
   
                
     
             
                 

            
         
           
               
        
               
    
Washered Bolt
5/16"-18x1/2"
(Mounted in the garage
door opener)
HARDWARE
Lock Nut
(Mounted in the
garage door opener)
Lock
Nut
Washered Bolt
5/16"-18x1/2"
Hex Screws 8-32x1"
Washers
Chain Spreader6-Tooth
Sprocket
8-Tooth
Sprocket
Chain Spreader
Models 8587W and 8587WLB only
Motor Unit Mounting Plate Motor Unit Mounting Plate