Maintenance of hydraulic excavator rotary unit (1) within the air cleaner combustion engine fuel needs fresh air. Air cleaner air into the combustion chamber can be cleared of dust and other foreign matter from the outside, in order to prevent the engine cylinder liners and piston rings and other wear and tear. (2) Oil and fuel filter and fuel oil in storage and refueling easily mixed with water and dust. Filters can filter foreign objects and prevents engine wear internal system components. Also mini excavator factory direct, if serious contamination these filters will result in poor flow of oil or fuel and lack of engine power or engine damage caused by bad lubrication failure. Functions (3) hydraulic oil filter hydraulic oil is transforming the media power, so dust and other foreign matter mixed prohibited. The hydraulic oil filter can prevent debris from entering the various parts of the hydraulic unit. In addition, oil filter is attached to the hydraulic tank to protect the hydraulic circuit of the hydraulic pump. Work will be returned after the oil inside the hydraulic tank, and back to the oil filter is mounted on the oil return portion. Thus, by observing the return oil filter contamination level (if no iron) to determine pump or other components of the hydraulic system is in an abnormal state. When the oil through the filter cartridge, which can remove impurities, therefore, with the accumulation of contamination of the filter time will be more serious. If you do not timely contaminated filter replacement, it will reduce the flow of oil leaving the machine's performance can not be sufficiently original play. In addition, the continued use of damaged or excessively contaminated filter, you can not filter impurities, thereby shortening the life of the machine. Tai Anjia and excavators Heavy Machinery Co., tips overview 1, the operating technology first to confirm the situation around. When the rotation job, around obstacles, terrain to be aware of safe operation; the job, make sure the front and rear direction of the track of domestic small excavators to avoid tipping or impact; try not to make the final drive face excavation direction, otherwise easy to damage the traveling motor or hoses; the job, to ensure that the left and right track in full contact with the ground, improve the dynamic stability of the machine. 2, the effective mining methods when the bucket cylinder and linkage between, the arm cylinder and the arm each 90 degrees, the maximum digging force; bucket bucket teeth and the ground to maintain a 30 degree angle, the best cut in the soil digging force least resistance; when digging arm, should ensure arm angle between 30 degrees in the angle range of 45 degrees from the front to the back. Using both boom and bucket, can improve the efficiency of mining. 3, the use of bucket digging rock rock excavation machine would cause greater damage, shall be avoided; must excavation, should be based on the rock of crack direction to adjust the position of the body, smooth shovel into the bucket, dig; to fight insert tooth crevices sized excavators, mining (bucket should carefully slip teeth) with arm and bucket digging force; not broken rock, should be broken before use bucket digging. 4, trimmed flat slope level jobs when the machine flat on the ground, preventing the body shaking used mini excavators, motor coordination to grasp the boom and arm, the control of both the speed of the plane trimmed crucial. 5, the loading operation of the body should be in the position of the horizontal stabilizer, or unloading is difficult to accurately control the rotation, thereby extending the operating cycle time; the body and the truck to keep an appropriate distance, to prevent rotation of 180 degrees when the rear body and truck collide; try turning counterclockwise On installation, this vision, high working efficiency, and to correctly grasp the rotation angle, in order to reduce the time for rotation; excavator truck position lower than the forest in order to shorten the boom lifting time, and the line of sight is good; the first load of sand , gravel, then place large stones, thus reducing the impact on the wagons.泰安嘉 and Heavy Machinery Co., Ltd. Agricultural mini excavators, mini excavators Yan'an, Kerry and Heavy Industries and Heavy Machinery Co., Ltd. by the 泰安嘉.泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) located in Taian City, Alex House Zhaizi. Scraps and development in the wave of market economy, the current Kerry and have high visibility in heavy mining machinery, enjoy a good reputation. Jia made the whole network and Heavy Commercial Union certification, marking our service and management level has reached a new height. Heavy Kerry and the staff willing to work with all people of insight and common development, for a better future.