Using this GeoTest S5771 Strain - Controlled Load Frame is straightforward. First, make sure it's connected to a 155 VAC power source. Since the main power switch is damaged but still works, handle it gently when turning the machine on and off. When it powers on, you're ready to use it for your lab tasks. Note that due to limited testing, we can't guarantee every aspect of its performance. As for maintenance, keep it in a dry and clean environment. Wipe off any dust regularly. Be aware that it may have minor scratches and scuffs, but these don't usually affect its operation. If you encounter any problems, refer to the pictures provided with the product listing. And remember, this item is for local pickup at the MSU Surplus Store only.