Using the Jet 708119 Mobile Base is easy. First, adjust the width and length of the base according to the size of your JET machine. You can do this without any tools thanks to the spring - pin snap adjustment. Once it's set, place your machine on the base. The two fixed and two swivel casters make it simple to move the machine around your workshop. When using it, make sure the weight of your tool doesn't exceed 1200 lbs. For maintenance, regularly check the casters for any signs of wear or damage. Clean the base occasionally to keep it in good condition. Store it in a dry place when not in use to prevent rusting.