Monitoring of Physical Properties of Transmission-Hydraulic Fluid by Simulating the Operation Load of Agricultural Machine’S Hydraulic Pump Under Laboratory Conditions

This work describes the results of changes in physical properties of transmission-hydraulic fluid during simulation of operating load of FHD 17 under laboratory conditions, while monitoring the effect of quality changes of the used fluid on the flow efficiency of the hydraulic pump. Aforementioned hydraulic pump is used in hydraulic system of agricultural machine. Laboratory testing equipment allows us to simulate the operational load of the working circuit of the agriculturemachine’s hydraulic system with the possibility of testing the operating fluids andthe main elements of the hydraulic system. Hydraulic pump flow rate changes were monitored at precisely determined intervals and the influence of the physical properties of the fluid on the flow efficiency was rewieved and consequently evaluated by mathematical – statistical analysis.