Grab Maintenance: drivers should grab the use of real-time observation of mine during working with grabs, if found chains, quick connectors, which are signs of wear should be timely refueling; grabs if found other faults or suspected faults should stop checking and timely reporting, and make a record in the run log. Grab a crawling means extract granular materials Tangshan grab mine, using it can reduce the heavy manual labor Hebei mine grabs, improve labor productivity. Grab the safe use and inspection: According to fetch the material density is different, with different starting weight of the crane, loading different kinds of goods should be equipped with different types of grabs.