Excavators prevent contamination of the hydraulic system clean solid hydraulic oil is the life of the hydraulic system. Hydraulic system has many precision coupling, and some damping holes, and some have cracks and other. If the solid impurities invasion will result in precision coupling strain, card issuers, oil duct blockage, endangering the safe operation of the hydraulic system. General solid impurities invasion pathways hydraulic system: hydraulic oil unclean; refueling tool unclean; refueling and repair and maintenance accidentally; scaling and other hydraulic components. Can prevent from the following aspects of solid impurities intrusion system: 1, when refueling: hydraulic oil must be filtered filling, refueling tools should be reliable and clean. Not in order to improve the speed and remove the fuel tank fuel filter at the mouth. Refueling personnel should use clean gloves and overalls to prevent solid impurities and fiber impurities fall into the oil. 2, maintenance: Removing the hydraulic tank filler cap, filter cover, how much test holes, hydraulic tubing and other parts Wheeled excavators, causing dust to avoid exposure when the system oil passages, first thoroughly clean the demolition site to open . When dismounting the hydraulic tank filler cap, first remove the soil around the tank cap, wring pine oil cover, remove debris left in the joint (not rinsed with water to avoid water infiltration tank) wheel excavator, confirmed to open the tank cleaning cover. To use when wiping material and hammer, can not afford to wipe material should be selected and the striking surface fiber impurities special attachment rubber hammer. Hydraulic components, hydraulic hoses to carefully cleaned with high-pressure wind dry after assembly. Selection of packaging intact authentic filter (inside the packaging is damaged, although the filter intact, also may be unclean). At the same time the price of cleaning the filter small wheeled excavator oil change, the application carefully wiping material to clean the dirt at the bottom of the filter housing before installing the filter. 3, the cleaning of the hydraulic system: cleaning oil must be used with the system used the same grade hydraulic oil, the oil temperature between 45 ~ 80 ℃, with a large flow as far as possible the system of impurities away. Hydraulic system repeatedly washed three times or more, after each wash, the entire release system to take advantage of the oil is hot. Then wash the filter cleaning is completed, after filling the new oil filter replacement.泰安嘉 and Heavy Machinery Co., Ltd. Construction Machinery engine vibration Vibration and dry sound pollution are two major construction machinery at work. The engine is a mechanical engineering major source of vibration. Propagation engine vibration directly affects the construction machinery machine reliability and service life, but also to the driver's comfort is deteriorated, and reduced efficiency Wheeled excavators, we must take some effective ways to reduce vibration. Vibration control of the local oscillator control throughout the design, manufacturing and the use of the whole process, reflected in the balance of properties such as improved engine, dynamic performance, precision machining and assembly of parts and so on. A vibration of the engine at work is diverse, for two main reasons: the center of gravity of the engine periodically moved up and down along the cylinder reciprocating member acting inertial force, centrifugal force rotational movement of all parts of the gas pressure alternation caused by rotation of the crankshaft cycle change. These unbalanced forces and moments usually by changing the engine design parameters to adjust the result of the natural resonance frequency of the system to avoid the structure, improve the resonance characteristics of the system, such as through the body modal analysis and finite element calculations to study the body's natural frequency of vibration mode and so on. Weaken machine vibration source and avoid resonance should first consider the design phase, to run through the whole system design engineering ideas, full application of modern design methods, such as finite source design, reliability design, robust design, optimization design, computer-aided design and intelligent systems and expert system design.泰安嘉 and Heavy Machinery Co., Ltd. Used Wheeled excavators, Kerry and Heavy Industries (online consultation), Inner Wheel Excavators by 泰安嘉 and Heavy Machinery Co., Ltd .. Used Wheel excavators, Kerry and Heavy Industries (online consultation), Inner Mongolia wheel excavator is Taian Jia and Heavy Machinery Co., Ltd. (www.tajhzg.com/) this year introduced a new upgrade, the above picture is for reference only, please dial this page Phone or pictures on obtain the latest information, contact: punishment manager.