Using this locomotive set is straightforward. Just connect it to your model train track system and power it up. When handling the set, be careful around the broken drawbar on the 'A' unit to avoid any further damage. For maintenance, keep the locomotives in a dry and clean place to prevent rust. Wipe them gently with a soft cloth from time to time. When storing, make sure to use the provided 'pick 'n pluck' foam in the original box to protect them from bumps. If you're shipping the set back for a return, follow the standard shipping procedures and ensure it's well - packed again.