Diesel generators that may occur include the following: a diesel generator rotating part of the main rotor unbalance, couplers, couplings, drive wheel (brake wheel) imbalance caused. Better approach is to first find the sub balance. If you have a large drive wheel, brake wheels, couplers, couplings, and the rotor should be separately to find a good balance. Then there is the rotating part of the mechanical loosening caused. Such as: core brackets loose, oblique key generator maintenance center pin failure loose, not tight banding rotor will cause imbalance in the rotating part. Second, the mechanical part of the diesel generator set failure following main points: 1, diesel generator sets linkage section shaft misalignment, centerline do not coincide, centering incorrect. The main reason for this failure is generated during the installation generator maintenance, for the poor, caused by improper installation. Another case is that some parts of the centerline of the linkage in the cold state is consistent coincidence, but after running for some time due to the rotor pivot base, etc. deformation, the centerline has been destroyed, resulting in vibration. 2, diesel generator set and diesel generator set associative gears, couplings faulty. This failure is mainly for gear malocclusion, badly worn teeth K50 generator maintenance, poor lubrication for wheels, couplings skew, dislocation, gear coupling tooth, pitch right, the gap is too large or badly worn, will cause some vibration. 3, diesel generator sets itself defect structure and installation issues. This failure is mainly for journal oval, curved shaft between the shaft and the bearing clearance is too large or too small, bearing, base plate, a part of the foundation of the whole diesel generator set installed base stiffness enough, diesel generator sets and basic between the plates fixed is not strong, foot loose bolts, loose between the bearing and the base plate. The gap between the shaft and the bearing is too large or too small can not only cause vibration also allows the bearing lubrication and abnormal temperatures. 4, diesel generators drag load conduction vibration. For example: Turbine Vibration turbine made diesel generator sets, diesel generator sets drag fans, pumps vibration, the vibration caused by diesel generators. Diesel generator set to introduce you to: diesel generators pump usage requirements and characteristics of diesel generators pump is an important component, usually we have to pump much attention to the use and installation, to ensure the long-term use of diesel generator sets . 1. Before installing pump, to check the model and specifications are correct and clear anti-rust oil, use gasket thickness should be appropriate, too thin or too thick to prevent the piston top dead or running in place, tightening torque when tightening the bolts to be uniformly, to prevent damage to the pump. 2. The pump connectors within the core coarse strainer vulnerable to cotton and other dirt clogging, should always check the cleaning, filter damage must be repaired or replaced. 3. The pump hand pump on the body between the piston and hand pump with rubber seals, and not arbitrarily dismantled, the rubber ring is damaged must be replaced. The hand pump must be pushed back after use, the button is tightened to prevent the hand pump and gasket or valve seat is not tight due to the pressure caused by the intake or leakage. 5. ensure plunger pump "four spring" normal elasticity. "Four spring" for the piston spring, tappet (wheel) spring, the inlet valve springs, valve spring, the spring elastic weakened or broken should be replaced or padded adjustment. 6. Make sure the gasket around the intact plastic system Zhi ring disassembly times not too much, and should be changed regularly. 7. opened a vent hole on some pump casing, the role of the hole is to make a small amount of diesel fuel pump leak directly into the pump body. Holes shall be blocked to prevent diesel fuel into the fuel pump sump oil dilution. 8. found excessive fuel pump diesel oil pan, oil pump to be checked with the pump pistons, tappets and tappet cover the gap is too large, too large to promptly deal with generator maintenance, and prevent serious leakage of diesel, the spray poor mechanical lubrication oil pump and governor. 9. prolonged downtime, prevent the mating surface pump, especially piston pump, tappet and tappet Apartments in moisture and corrosion due to oil, rust preventive measures must be taken (when stopped, the replacement fuel pump sump inside with water, diesel lubricants and other impurities). 10. Fill the diesel to go through the sediment filter to ensure clean, and prevent excessive impurity exacerbated pump inlet valve, the oil valve seat wear, and sometimes even the oil valve is impurity paving and failure. Generator maintenance of telephone, the diesel generator (certified), generator maintenance provided by the Dongguan Hengli ShangXi Chai Electrical Equipment Co., Ltd .. Electrical Equipment Co., Ltd., Dongguan ShangXi Chai (www.dongguanfadianji.cn) is an industry leader in Dongguan, Guangdong, diesel generator sets, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. On the diesel generator leadership with the staff warmly welcome all inquiries negotiations to create a better future for diesel generators.