Using this model is straightforward. Just connect it to an analog DC power source, and it will start running smoothly. When handling the model, be gentle as it's a fragile item, especially since it's made of brass. For maintenance, regularly check the wheels for any signs of excessive wear. If the motor or gearbox starts making more noise than usual, it might need a little lubrication. Keep the model in a dry and dust - free place when not in use. If you're shipping the model back to us for a return, make sure to use proper packaging to avoid any damage during transit. Also, remember that if you're making an international purchase, you'll be responsible for any import - related costs.