HMB

Excavator maintenance check hydraulic excavator is the guarantee of safe operation and prolong service life

by:HMB     2021-01-25
Excavator daily check hydraulic excavator is the basic guarantee for the safe and efficient operation and prolong service life, can seal all kinds of faults, defects detection and repair in time, avoid further developed into the key fault, and excavator serious damage. The construction of the formal construction basic has its equipment management method, according to certain standards, a certain cycle inspection on parts of the hydraulic excavator. Demand the excavator operator should master the basic theory knowledge, understand excavator use performance, can be simple fault diagnosis and ruled out. For general soho, do a good job to improve the daily tally excavator production efficiency, reduce the maintenance cost is of great significance. Daily tally of objects including the machine, engine, hydraulic parts, walking system, mainly about muscle, work unit, the oil allowance, lights and wipers etc. , for visual and touch. First to see if there are any more strange appearance, then around the machine chassis to see if there is a crack parts and slewing bearing to see if there is oil leak; Then check the final reduction gear mechanism for the oil permeability and four-wheel area of the bolt, if there are any loose order should be in accordance with the provisions, moment and tighten, if there is damage, should be replaced in a timely manner. So rubber-tyred excavator should check the tires are in good condition, air pressure is in accordance with the provisions. Check the digging bucket and bucket teeth, dulling dipper teeth should be replaced immediately, according to relevant data show that cutting resistance of bucket tooth wear bucket will increase by 60% ~ 80%, and this will significantly reduce the efficiency of bucket. Check carefully whether the movable arm and bucket rod tiny crack, oil cylinder leaks oil and charging state of butter. Battery is power source of electrical system of excavator, check the battery electrolyte remaining amount above the lowest level, ensure the normal order of the storage battery to power supply. Check the cleaners and wiper, washing liquid bottle washing water level, when it is necessary to add; Like a blade wear, streaks, should be replaced. Air filter is the first level of air into the engine, the filtered clean air into the cylinder to participate in the fuel combustion. Check air filter cartridge can use compressed air to clean up dust and air dust content in large area USES excavator, it should be added to check the number of air filter. Check the hydraulic pump oil in and out of the mouth, ensure no leakage and loose. Pump chamber fuel filter and oil filter, should change time as stipulated in the factory, such as long-term work under bad working conditions, can replace the fuel filter and oil filter in advance. Hydraulic oil quantity count on the chamber door buckle overlock, relatively hidden, don't forget to check the pump chamber to check the hydraulic oil allowance. Ensure that the oil on the oil level in the vernier & other; L” And & other H” Between the scale line, such as below & other; L” Calibration, should be added. Oil level abnormal, want to find out the reason as soon as possible, check again after troubleshooting. Due to the particularity of excavator work field, should as far as possible let the machine in a horizontal section check can only be concluded that more accurate oil scale line. In addition, the normal operation of the engine also requires enough fuel, cooling water, fuel tank and water tank is the tally of meaning. In single central belt proper pressure, check whether the sink of the belt in the scope of the provisions otherwise should adjust the belt tension. Change a new belt, should be replaced in groups. After the engine starting, should check the speed of display of the instrument operation is normal, no ring, smoke. Otherwise it is necessary to stop the machine immediately to check. Check the oil amount of rotary retarding mechanism, the position of the oil level shall, in accordance with the provisions of the oil scale, insufficient oil to add. At the same time also should pay attention to the tubing connector contact, no leakage, no loose, without damage. Special remind, supplement or replace the oil ( Fuel oil, lubricating oil, hydraulic oil, coolant, etc. ) Should be according to the requirements of drivers using the instructions when using the original manufacturers recommend the oil, and keep clean, prevent the dust, foreign bodies, mixed with oil. Must complete hydraulic drivers daily tally work, ask the operator to read the excavators operating instructions, specifications and performance of excavator, hydraulic system principle, the structure and characteristics of hydraulic components such as an in-depth understanding of carefully. Constantly improve their own professional theory knowledge, rich in terms of installation, use, maintenance and repair of practical experience. After completing each affecting the necessary daily check, still should do it in time for every 50, 150 hours, 500 hours, 1000 hours, 2000 hours ( The excavators factories require a slightly different time) After maintenance, keep the excavator work under good condition, prolong service time.
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