Using the Gator Cases G - BUS - 8 - US pedal board power supply is easy. First, find a suitable place on your pedal board and use the four mounting holes to attach the power supply. Connect your guitar effects pedals to the power supply using the provided 9V and 18V cables. Make sure to choose the right voltage output for each pedal. When it comes to safety, don't worry about short - circuits as it has built - in protection. If a short - circuit occurs, you can reset it. For maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or humidity. Check the cables regularly for any signs of damage. If you notice any issues, replace the cables immediately. This power supply is designed to last, so with proper use and care, it will keep your pedals powered for a long time.