What excavator foundation trench (pit) Excavation should pay attention to? Check gantry plate (1) Before excavation, pile axis whether the phenomenon walking excavator schools and basic design drawings gray line checking the position, size, gantry plate elevation and other compliance requirements. (2) the excavation should be carried out continuously to complete as soon as possible and to prevent the ground water people base groove (pit). (3) When the excavation of earth piled place, away from the groove (pit) should normally be outside edge 1.0m, stacking height should not exceed 1.5m. So as not to affect the excavations or caused by landslides. (4) base groove (pit) excavation excavator school address Tai'an, non Excavated soil substrate, so to be measured in time to prevent over-excavation. In the event of over-excavation. Use of earth excavated and compacted fill to the desired density of Tai'an best schools excavator, overbreak serious designing institutions to jointly approach; after the foundation trench (pit) dug, should grooves (pits) end shovel level and prepare compacted thickness is 1-3cm. (5) The excavation process and return to work after the rain, the soil should always check the wall stability and support firm, identify problems and timely treatment. Hydraulic transmission oil should have what performance A: (1) a suitable viscosity; (2) stable physical and chemical properties; (3) good lubricity; (4) little metal corrosion; 5) good? anti-extrusion and anti-foam capabilities; (6) a higher flash point, low freezing point to fewer impurities; (8) does not cause swelling and hardening of seals. Which school Taian excavators, excavators school, Kerry and excavators school by 泰安嘉 and Heavy Machinery Co., Ltd.泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) strong, credible, in Tai'an, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kerry and heavy and you hand in hand into the brilliant, for a better future!