 
                    1
                    Insert two steppers I into the Arm Mount D and secure them with four M5 Phillips Cap screws K, using a Phillips screwdriver.
*Optional. Recommended for rimless aquariums.
                 
                
                     
                    2
                    Insert four M4 Round Head Hex screws C through Tube AdapterE and into Arm Mount D. Secure with M4 Hex Key M.
                 
                
                     
                    3
                    Use two Thumb screws N to secure Arm Mount D to aquarium. Put Arm A into the Tube Adapter E and adjust to the desired height. Markings facing the back. Secure them with two M5 Thumb screws L.
                 
                
                     
                    4
                    The best distance between the far ends of two Arm Brackets D is 17 13/16" (453mm).
                 
                
                
                     
                    5
                    Remove the screws from the top side of APXX, using M4 Hex Key M.
                 
                
                     
                    6
                    Use M4 Hex Key M to secure the Slide Bar-1 B and APXX together with two M4 Hex Socket Cap screws F. Repeat A5 & A6 for the other side of APXX.
                 
                
                     
                    7
                    Fit the APXX cable through Arm A and all the way to the end.
*Exercise Caution
                 
                
                     
                    8
                    Slide the APXX and Slide Bar-1 B into Arm A. Slide both sides at the same time.
*Exercise Caution
                 
                
                
                     
                    9
                    Adjust Slide Bar-1 B to your aquarium width. Secure with M3 Thumb screw J. Length X should be half of your aquarium width. For 18" width, X=9"; For 24" width, X=12".
                 
                
                     
                    10
                    Installation completed. Please be cautious when making adjustments.
                 
             
            
            
                
                     
                    1
                    Remove screws from A360X. 
                 
                
                     
                    2
                    Slide Slide Bar-1 B into Arm A and secure them with M3 Thumb screw J. 
                    
Combine Slide Bar-1 B to A360X using M3 Phillips Cap O. 
                 
                
                     
                    3
                    Fit power supply cable through the bottom of the Arm A and connect to Power Cord of the unit.
                    
Secure Mounting Arm on aquarium following steps A1 to A3. Adjust Slide Bar-1 B  to your aquarium width. Secure with M3 Thumb screw J.
                    
Installation completed.