then the hydraulic components have been badly worn

The quality of hydraulic oil, directly affect the normal operation of the hydraulic cylinder truck, the following is a simple identification of impurities in the hydraulic oil Method:
1, sensory identification: a clear fluid metal particles in suspension, directly feel the presence of small particles when pinched with fingers twist; in the light, if reflective flash scissor pallet truck point, then the hydraulic components have been badly worn; If the tank There are a lot of metal shavings bottom of precipitation, then the main pump or motor has been badly worn?
2, heating Identification: For low viscosity hydraulic oil directly into a clean, dry test tube heating tube heating oil if found to precipitate or suspended solids, then the oil already contains mechanical impurities???
3, the filter identification: For high viscosity hydraulic oil, diluted available pure gasoline, then clean electric lift filter paper retained if found a large number of mechanical impurities (metal powder) on filter paper, then the hydraulic components have been badly worn??
4, the sound identification: If the entire hydraulic system has a larger intermittent noise and vibration, while the main pump "buzzing" sound, even rod "crawling" phenomenon, then the observed liquid fuel tank, fuel lines? export or transparent level gauge, you will find a lot of foam? This shows the hydraulic oil has been immersed in a lot of air?
5, the application Ferrography identification: Ferrography mechanical friction wear is Vice basic starting point, by means of iron spectrometer separates the hydraulic oil in the wear particles and other particles out and made of iron spectrum slices, then placed observed under a microscope or scanning electron microscope.