Using this Barco projector lens is easy. First, make sure your Barco RLM - W6 or RLM - W8 projector is turned off. Carefully remove the old lens if there is one. Then, align the new lens properly and attach it to the projector. When you're done, turn on the projector to start enjoying great projections. As for maintenance, keep the lens clean by using a soft, dry cloth to wipe off dust regularly. Avoid touching the lens surface with your fingers as it can leave smudges. If the lens gets dirty, you can use a lens cleaning solution and a special lens cleaning cloth. Also, store the lens in a dry and clean place when not in use to prevent damage.