Rig Hydraulic System Troubleshooting performance rig hydraulic system for the implementation of components ------ hydraulic cylinders, hydraulic motors power shortage; rig accessories, the main consideration systemic problems when the rig all hydraulic actuators are strong enough, first of all hydraulic pressure or flow is whether the requirements of a more direct way is to use a pressure gauge to test the system; furthermore consider checking system relief valve leaks. Relief valve seal replacement lax relief, so the simplest operation, the lowest price; hydraulic pressure is insufficient to replace the pump, relief valve and pump are generally non-serviceable parts, should be replaced as a whole; if it is less than one action force, it is a problem with the actuator, hydraulic cylinder ----- consider unloading the fuel tank seal damage drilling rig, or hydraulic lock is broken; in this case replace the hydraulic lock or replace cylinder seals. Rotary drilling rig construction method trend With the rapid development of our national economy, more and more projects become more massive, need better and more advanced machinery to the construction. Pile foundation has become the development direction, especially in the development of rotary drilling rig more by our attention. The following types of rotary drilling rig construction method is labor law open trend. 1) Large aperture long auger hole depth of Bridge Pile Construction Method. China's transportation equipment foundation is bound to deepen the role of open process by the thoroughfare thoroughfare, which needs to build more cross-river, river-crossing drill, across the lake, across the valley and the sea bridge, these bridges are often pile diameter larger pile more than two meters deep pile more than seventy meters deep, the class Piles Construction Method will be important rotary drilling rig construction method to open one of the trends. 2) civil engineering small diameter pile construction method in the wasteland civil engineering mall must be a small aperture Method of open conditional on a small aperture Construction method rotary drilling rig construction method opens an important open trend, small aperture Construction Method The intention is to dispose of the traveling power Open in civil engineering pile foundation construction, construction costs and decreased travel pile quality questions. 3) construction method to huge hard rock heavy pile of construction must demand greater endurance, rotary drilling rig drilling rock-socketed Method is an important trend to open its labor law, the main contents of the hard rock engineering methods research is advancing rotary drilling rig Drilling underlying power and fall hard rock for the construction of rotary drilling rig damage. 4) installation of exceptionally Construction Method. Common exceptionally pile type main belled piles and helical piles, etc., these exceptionally pile type of construction and drilling work method itself has a certain demand, discussion of these types of construction methods in favor of land reclamation potential mall. Rig pictures, dragon industry machinery (online consultation), the rig by Dragon Machinery Co., Ltd. Shandong. Machinery Co., Ltd. Shandong Long (www.longyejixie.com) is Tai'an, engineering machinery parts leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lung industry machinery leadership with the staff warmly welcome all inquiries negotiations to create the dragon industry machinery better future.