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Daswell machinery can be a company that's centered on manufacturing and selling fine stone concrete pump together with other connected equipment forced type concrete mixer, which has characteristics of product quality and economical and good service. Our machine is broadly appreciated by almost all old and new clients. Products of Daswell machinery has experienced test of market and contains proven its high quality. While using advancement in technologies, the top durability of quality and excellent and good after-sales service, Daswell has produced an excellent brand image which is broadly reliable by clients.Henan Daswell Machinery is a professional manufacturer of mining machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include:egg laying block machine,Diesel Concrete Mixer,mobile concrete batching mixing plant,If you are interested in our products, please contact us freely: sales@daswell.com fine stone concrete pump Here, let us discuss the empty running study of proper stone concrete pump: Start the electrical motor and search the rotating direction press the moving button, the piston push of concrete cylinder should match the S pipe treating action correctly mobile block machine, the push frequency should adhere to needs, as well as the set price of primary oil pressure should fulfill the needs press the piston treating button cement batch plant, test the treating moving control, as well as the piston reverse direction and restitution needs to be flexible and reliable check electric indicator light and hydraulic pressure gauge, as well as the indication needs to be true and tthere should not be fault after 30 minutes of free load running, every rotating part should not have strange appear and violent crack phenomenon there is no oil leakage for hydraulic system, as well as the oil level and oil temperature inside the oil tank needs to be normal there is no apparent decline for level in water tank.