Replacing a Summit 300 W DC Power Supply
    
    
        
        The following instructions apply to both of the 300 W DC power
            supplies (part numbers 10933 and 10944).
        You need the following tools and materials to replace a Summit 300 W
            DC power supply:
                - #2 Phillips screwdriver
 
                - Torque screwdriver and wrench or torque driver with
                    attachments for tightening screws and nuts
 
                - Thermal protective gloves (required for removal of a power
                    supply)
 
            
         
        
Warning   
Be sure to disconnect all power cables before you
            disconnect the chassis ground wire.