How to make excavator hydraulic system no noise 1. cavitation phenomenon is one of the main causes excessive pump noise. When the oil mixed with air, easily forming a high pressure zone in its cavitation, and in the form of pressure wave propagation, causing fluid oscillation, causing the system to generate cavitation noise. The main reason are: ① pump filter, inlet pipe blockage or oil viscosity is too high, can cause the pump inlet of the vacuum is too high, the air infiltration. ② pump, the pilot shaft end seal is damaged, or poor intake pipe seal, causing air to enter o ② oil tank is too low, the hydraulic pump suction air directly into the pipeline. 2. Excessive wear of internal components such as pump piston cylinder and valve plate, the plunger and the plunger hole and so fitting wear, strain, so that a serious leak in the pump, when the pump output pressure, small flow of oil The flow pulsation generated when liquid rubber tire excavator, causing higher noise. At this angle may be appropriate to increase the price of small wheeled excavators pilot system variables institutions to improve leakage effect within the pump output flow. Hydraulic servo valve spool, to control the flow of the piston will cause local wear, strain, fluctuating during movement of the piston, causing the hydraulic pump output flow and pressure fluctuations, resulting in a larger vibration and noise at the pump outlet . Then you can wear, serious injury spotting brush element or replacement process. 3. The hydraulic valve plate is easily one of the important elements of noise caused. Valve plate in use due to wear or sludge deposited on the surface of the unloading slot open at the trough will cause shorter unloading and unloading position change Used Wheeled excavators, produce trapped oil phenomenon, sparking higher noise. In the normal repair process, after grinding repaired valve plate also shorter unloading groove consequences appears and if not slender it appropriate, will also have a greater noise. Taian Jia and Heavy Machinery Co., proper use of hammers should pay attention to what matters it? Prepare broken before (1) When the tubing was found loose, one immediately cease operations. When the hammer high or low pressure hose excessive loosening, stop work immediately and immediate inspection and repair. At the same time as a precaution, should also check whether there is leakage happens elsewhere, the operator should pay attention to the stringent requirements of the situation hit points. (2) Avoid hammer situation in the absence of the target air strike. When a rock or object has been shattered, stop hammer blow action Wheeled excavators, continued aimlessly impact will only result in the precursor and main screw loose and damaged, or worse still loss and Construction Machinery body . Combat situation occurs aimlessly, unless they are improperly inserted, but the hammer will affect the use of shaking. Do not forget the guards pushing heavy objects as tools, so will only result in (3) Do not push to hammer heavy or large stones work fender screws, drill rod rupture and damage hammer, boom would break even the main reason. (4) Do not forget the drill rod to shake when using a broken job, such as an attempt to shake the drill rod using screw and drill rods are subject to possible rupture. (5) Do not use the strike action over a minute of continuous operation. When the same point pummeled more than a minute and failed to break the target, change the selected point attempt hit again. Trying to continue to crack down on the same point will only cause excessive wear drill rod. (6) When the object of the stone is large or hard to select for the job from the broken edges. Whether another big and hard stones again, select from the edge began to crack usually easier to break way. (7) Operation select appropriate engine speed breaker. An appropriate engine speed crushing operations. Usually not local to upgrade the engine speed exceeds the speed needed for the work, and failed to strengthen efforts to combat the strength of the time; on the contrary; will make the rapid increase in temperature of the hydraulic oil, lubricating ability and cause decreased ability to work to the detriment of and the risk of piston and valve.泰安嘉 and Heavy Machinery Co., Ltd. rubber tire excavator, wheeled excavator Hebi, Kerry and Heavy (View) by 泰安嘉 and Heavy Machinery Co., Ltd ..泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) strong, credible, in Tai'an, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kerry and heavy and you hand in hand into the brilliant, for a better future!