Guangyuan Hitachi excavator plant maintenance repair specialized high operating temperature drift

Guangyuan Hitachi excavator plant maintenance repair specialized high operating temperature drift maintenance Tel: 139-9639-3931, Meng master maneuvering arm drift excavation repair Hitachi (Hitachi ZX240-3 example) Views: 1 When problems presented after the primary view Guangyuan Hitachi excavation load control valve instead of the normal 2-way valve is not working properly, then the result? "; Hitachi explore maneuvering arm"; that is the cause of the malfunction rendered; Guangyuan Hitachi excavators load check valve problems, it needs to repair may be replaced 3 normal, then continue to view the anti-drift valve is not sticking maybe 4 if scratched scratch might be blocking it causes problems presented reason?? "; Boom anti-drift valve problems"; 5. if not bruised nor was blocking, then that is the reason "; cylinder leak"; Guangyuan Hitachi excavator engine high water temperature, oil temperature high (Hitachi ZX200-3 example) fault analysis: When presented above problems appearance, to the primary view excavation machine oil, water quantity is not met, if not to be applied if the orientation specification is met, then they would be reduced to the excavation machine oil, then reduce temperature operation following reasons: 1. Engine explore together exhibit high water temperature, high oil temperature problems for excavator engine damage is great when rendering high water temperature, high oil temperature problems will affect the normal operation of the engine water temperature is too high may constitute pull-cylinder engine, the oil temperature is too high may would constitute a serious erosion of the crankshaft and the bearing axle or 2 watts when presented together with the high water temperature, high oil temperature problems, choose to reduce the oil temperature water temperature can slow down the speed of the oil is usually used. ";.. down load , low speed. "; approach this time, although at the time the coolant heat exchange with hot parts of the length, but the flow slowed down, and extend the cooling time together, but also due to the load reduction, the speed is reduced, the various moving parts conflict. heat generated is also reduced accordingly. Therefore, lowering the heat of the engine oil is not only possible to reduce the occurrence of, and, indirectly, reduce the heat absorbed by the cooling fluid, then it is possible to slow down the speed of the water temperature. 3 excavator engine oil impact oil pressure. When the engine oil temperature is too high, not only so that the amount of added fuel (leakage, evaporation, incineration), and affects the quality of the oil, so that all parts of the film the appearance of conflict is not easy to constitute and maintain the engine, constitute the main oil oil pressure not set, then increase the mechanical wear and tear. The water temperature of the hydraulic oil through the necessary competence to complete, so has a certain indirect demand for a certain time. 4 first precipitation temperature of the engine oil pressure oil passage spindle establish a great impact on precipitation temperature is generally adopted. "; down load, high-speed"; the way when the speed is too high, will increase Piston Xuan group inertia and centrifugal force, the crankshaft bearing load increased. Together, the journal bearing and the relative velocity of the conflict will increase, so that heat generated per unit time added fuel pump to reduce a lot of oil was thrown from the main oil passage, and then cause the appearance of various parts because there is no conflict lubricants meet aggravated wear, oil temperature will rise further. Guangyuan ZX330-3G harmony nimble action, driving comfort, but glib simple problems, cost of oil, inappropriate use of the North, a long time simply leaking hydraulic oil, suitable earthmoving construction, inappropriate stonework, fuel consumption 25-35L / H, expensive repairs, Isuzu fuel-efficient by the use of, but not lean heavy work. ZX240-3 excavator import low fuel consumption, multi-function monitor, by the use of strong Hitachi strengths : mechanical matching Typically, hydraulic systems are usually quick action, usually by the use, preservation generally, the use of capital generally, fuel consumption generally, strength in the price of cheap around 3-5 million more than Komatsu Hitachi defects: not by the use of two or three After many years the main problem is the water temperature is still high hydraulic pressure system, is 20-for-four missing engine machines, it is the lack of effort to increase the displacement of the narrow, do not dare to use. Hitachi 60 years old Japanese brands, trade a lot, but less than, CAT / KOM Naicao Hitachi is Japan's sole proprietorship in China, the engine, hydraulic pumps, motors and other large travel are imported, stable quality. machinery fuel, horsepower (new EFI engine horsepower bigger than Carter), a leading electronic system work faster defect is simple permeability tubing seal hydraulic oil, usually want to change a machine to 6000 hours Hitachi excavator O-ring repair common problems: Hitachi excavator hold machine, Hitachi excavator slow walk walking Guangyuan Hitachi, Hitachi excavator oil spills, Hitachi excavator walking wandering, Guangyuan Hitachi no force, refueling on the flame, when issuing recovery arm Guangyuan Hitachi, Hitachi hot car traveling deviation, Hitachi excavator high water temperature, weakness, Hitachi whole car without action, Guangyuan stretch 2 Hitachi excavator boom lift arm and hold the car, Hitachi excavator hold car engine, Hitachi excavator reverse slow. Guangyuan specialized repair Hitachi excavator plant maintenance high operating temperature drift, the preferred fly excavator plant maintenance repairs Tel: 139-9639-3931 Phone Fax: 023-65425300 Contact: Meng Chao (manager) Website: http: //www.fxwjjwx.com fly Hitachi excavator scale repair services : Hitachi excavator common problems free consultation, on-site trouble viewing, on-site repair scale consultation hotline 139-9639-3931.