Using this motor start/run capacitor is a breeze. First, make sure your appliance is turned off and unplugged. Locate the old capacitor in your appliance and carefully remove it. Then, connect the new capacitor using the 4 x 6.4mm spade terminals. Make sure the connections are secure. When using, always check if the appliance's power supply matches the capacitor's 400-volt rating. Don't expose the capacitor to extreme temperatures or moisture. For maintenance, keep it clean and check the connections regularly. If you notice any signs of damage like swelling or leakage, replace the capacitor right away. With proper use and care, this capacitor will serve you well for a long time.