Prices of small and medium excavators at work, the temperature of each component has its own normal range double roll crusher. Such as general cooling water temperature is 80 ~ 90 ℃, the temperature of the hydraulic drive system of hydraulic oil is 30 ~ 60 ℃, less than or greater than this price range will accelerate wear excavator parts, causing deterioration of lubricating oil, resulting in changes in material properties and so on. Tests showed that a variety of engineering machinery main drive gear and bearing lubricants operate at -5 ℃ operating ratio in the lubricating oil 3 ℃, the wear and tear to be increased from 10 to 12 times the Breakers. But when the temperature is too high, will accelerate the deterioration of lubricating oil, such as oil temperature checked 55 ~ 60 ℃, the oil temperature is increased by 5 ℃, the oxidation rate of the oil will be doubled. To this end, the engineering machinery in use, one to prevent overload conducted at low temperatures, to ensure the normal operation of the low-speed pre-heating phase, the mechanical reach the required temperature before traveling or working, not because there was not a problem while ignoring its important to do; two to prevent mechanical operation at high temperatures, mechanical during operation should always check the value of various thermometers, identify problems immediately stop inspection, found fault even excluding roll break. For reasons not find, we must not fail treated and still make mechanical work sick. In the usual work, pay attention to check the working conditions of the cooling system of composite crusher. For water-cooled machine, must be checked daily before work, and refresh the cooling water; for air-cooled machines, excavators should periodically clean the dust on the price of domestic air-cooled system to ensure smooth flow of cooling air duct. 1. Carefully read the operating manual hydraulic breaker to prevent damage to the hydraulic breaker and the excavator, and effectively operate them. 2, pre-operation inspection is loose bolts and connectors, as well as hydraulic lines for leaks. 3. Do not write on the hard rock pecking hole with a hydraulic breaker. 4, can not be fully extended or full reduction condition in cylinder rod operating breaker. 5, intense vibration occurs when the hydraulic hose should stop breaking the operation and check the accumulator pressure. 6, to prevent the breaker between the boom and the emergence of a drill excavator interference. 7, in addition to drill price of foreign-made mini-excavators, not to breaker into the water. 8, may not be broken for lifting device use. 9, shall excavator track-side operating breaker. 10, when the hydraulic breaker with the hydraulic excavator or other construction machinery and equipment installation and connection, working pressure and flow rate of the hydraulic system must comply with a host of hydraulic breakers technical parameters, hydraulic breaker "P" in the high pressure port and the host connection, "O" and the host back to the oil port connection. Prices of small and medium excavators, Kerry and Heavy Industries (certified), Chengde excavator price offered by 泰安嘉 and Heavy Machinery Co., Ltd. Taian Jia and Heavy Machinery Co., Ltd. (www.tajhzg.com/) is Tai'an, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Heavy leader in Kerry and the staff warmly welcome all inquiries negotiations to create Kerry and heavy industry a better future.