Using the Makita 195533 - 9 Water Attachment is straightforward. First, make sure your Makita 4 - Stroke Power Cutter (model EK7651H) is turned off. Then, easily install the water attachment on the power cutter. Next, connect the water line to the attachment. When you start using the power cutter, you can adjust the water flow rate to suit your cutting needs. This will help improve the cutting performance. As for maintenance, after each use, disconnect the water line and clean the attachment to prevent any blockages. Also, store it in a dry place. And always remember to use it only with the specified Makita power cutter model for safety and best results.