Supply maintenance Pakistan in Pyeongchang Daewoo 300 excavators hydraulic pump noise

Supply maintenance Pakistan in Pyeongchang Daewoo 300 excavators hydraulic pump noise, Chongqing fly excavator Repairer reference! 24 hours Troubleshooting: [139] --- [9639] [3931] --- --- Mengjing Li fly excavator repair: repair Daewoo Pakistan in Pyeongchang, 300 hydraulic excavators Hydraulic Pump noise noise has less three types: hydraulic issue "; a click, click"; voice is the sound of the pump suction difficult issue primarily pump suction chamber or shaft parts or suction pipe joints loose, caused by inhalation of air pump. issued a hissing sound, a noise filter pump due to the obstruction or suction tube vacuum system and a sharp increase in the formation of cavitation issued, the higher the pressure the greater the pump noise issue. "; Oh when, oh when,"; the Sound is vibration noise emitted by hydraulic machinery, mainly due to a hydraulic pump bearing or deputy campaign wear, poor assembly, shaft misalignment and other causes added: excavators relief noise are: hear sharp relief . This is the cry of relief pilot valve in the high-frequency vibrational state; the main valve opening in loud or reflux space cavitation pressure differential pressure given high flow, the noisier hear overflow. impact sound of the valve. This is the moment when the sound of the relief valve relief action in a large pressure difference generated by the hydraulic impact of two oil passage communicated issued. screams one-way valve, which is flowing through the one-way The flow valve exceeds the rated flow check valve is too large or the pressure difference caused by too much vibration and the sound emitted electromagnetic valve "; buzzing"; the sound is normal, if the issue is the impact of sound spool action too fast or electromagnet core poor contact or pressure differential is too large to the sound of metal percussion, loose fasteners generally sound emitted. Maintenance Daewoo Pakistan in Pyeongchang, 300 excavator hydraulic excavator noise from the pump View detailed breakdown surrounding noise as follows: 1. First on view Kobelco excavator oil tank enough 2 If not, it may cause a malfunction occurs, it is necessary if not enough fuel to view 3, to continue to view God?. Steel excavator working inside the tank there is no bubble? 4 bubbles, may also lead to failure. So when you stop digging machine when a job in view of bubbles in the fuel tank had not disappeared? 5 bubbles disappear, it shows or suction feed oil bubbles, the bubble does not want to replace the tubing 6 disappear, and that is the working oil is bad, to be replaced added: Within view there are no air bubbles when working tank, if there is no bubble, then do the following breakdown Views: 1 View feed External oil filter is blocked by other things for? 2 blocked, it would have to remove. 3 is not blocked, then view the inlet filter for metal foreign body obstruction or drain plug glue metal shavings? 4, the pump Internal bad. 5 is not bad tank check valve, hydraulic oil tank is normal, if normal view crude oil filter is clogged, crude oil filter is not clogged crude oil filter clog dredge If you need to clean up crude oil filter blockage See the pipeline between the fuel tank to the pump immediately after the problem goes away, such as the disappearance of the need to tighten the loose tube rack such as the disappearance of the view when discharged hydraulic oil is found to have metal debris and found that if the release of hydraulic oil metal debris damaging the pump need repair or replacement, if the release of hydraulic oil found no metal debris is working for some time and observe whether the change in symptoms need to re-view. Pakistan in Pyeongchang repair Daewoo 300 excavators hydraulic pump noise, preferred Chongqing fly excavator plant maintenance more professional!