 
                1
                Insert two Steppers I into the Arm Mount E 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 H through Tube Adapter F and into Arm Mount E. Secure with M4 Hex Key N.
             
            
                 
                3
                Use two Plastic Thumb Screws 3/8-16 O to secure Arm Mount E to aquarium. Put Arm D into the Tube Adapter F and adjust to the desired height. Markings facing the back. Secure them with two M5 Thumb Screws L.
             
            
                 
                4
                Remove the back two screws from the top side of AP9X, using M4 Hex Key N. Keep these two screws for the next step.
             
            
            
                 
                5
                Use M4 Hex Key N to secure the AP9X Bracket + Slide Bar A and AP9X together with the two M4 hex socket cap screws from Step 4.
             
            
                 
                6
                After adjusting the angle of the AP9X Bracket + Slide Bar A,  tighten and secure the M6 Cap Head Hex Screw C with M6 Hex Key M.
                
There are two directions for adjustment: left/right and up/down.
                
             
            
                 
                7
                Fit the AP9X power cord through the slot on the Arm D and all the way to the bottom. Slide the AP9X and AP9X Bracket + Slide Bar A into Arm D.  
             
            
                 
                8
                Adjust the position of the Slide Bar according 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”.
             
            
            
                 
                9
                Installation completed.
Please be cautious when making adjustments.