Before starting the vertical roller mill, the operator needs to do some inspection work to ensure that all parts are normal and there is no material blocking in the crushing chamber. In addition, the inspection before startup can also help you find the fault in time, prevent the trouble in advance, and avoid greater losses. So, what aspects need to be checked before starting the vertical roller mill?Before starting the vertical roller mill, check whether the elbow plate of the vertical roller mill is lubricated enough, which is the premise of ensuring the efficient operation of the crusher. The elbow plate is a component that transfers power to the jaw of crusher. It supports the movable jaw plate in jaw crusher and transmits the crushing force to the back wall of frame. If the lubrication is not good, it will directly affect the work efficiency of vertical roller mill.