Using these ALCO diesel models is easy. Just connect them to your analog DC power source and they'll start running. When handling, be gentle as they're fragile, especially the brass parts. To keep them in good condition, regularly check the wheels for wear. If you notice any excessive noise or changes in operation, stop using them and inspect for issues. Clean them gently with a soft cloth to remove dust. When storing, keep them in the original boxes or a safe place to avoid damage. Remember, if you're not satisfied, you can return them within 30 days for a full refund (you'll be responsible for return shipping unless the item arrives damaged).