Using these motor carbon brushes is a breeze. First, make sure your washing machine is unplugged to avoid any electrical hazards. Then, locate the old brushes in your Ariston or Indesit front - loader with an Indesco motor. Gently remove the old ones and replace them with these new ones, aligning the pins and terminals properly. As for maintenance, keep an eye on the spinning performance of your washing machine. If you start to notice issues like erratic spinning again, it could mean the brushes are wearing out. When handling the brushes, be careful not to damage the terminals. If you're unsure about the installation process, it's always a good idea to consult a professional. With proper use and care, these brushes should last a long time and keep your washing machine running smoothly.