Using the Klein 63060 Ratcheting Cable Cutter is easy. First, identify the copper or aluminum wire you need to cut, making sure it's within the 600 MCM for copper and 750 MCM for aluminum capacity. Place the wire between the cutter's blades. The hold - open spring will keep the cutter open for quick placement. Then, start applying pressure. The ratcheting mechanism will help you cut with less effort. When you're done cutting, use the quick - release lever to open the blade. As for maintenance, keep the cutter clean after each use. Wipe off any dirt or debris. You can also apply a little lubricant to the moving parts to keep them working smoothly. Remember not to use the cutter on wires that are larger than its capacity, as this can damage the tool.