Using the Piher Maxipress F piston clamp is easy. First, place the object you want to clamp between the fixed and moving jaws. Then, turn the handle to adjust the position of the moving jaw until it firmly holds the object. The double - threaded screw allows you to quickly increase the pressure. Remember to grease the screw through the greasing hole regularly to keep it working smoothly. When not in use, store the clamp in a dry place. If the handle gets loose, you can easily dismount it and re - attach or replace it. Avoid using excessive force that could damage the jaws or the spring mechanism.