EXPERIMENTAL STUDY OF THE AMBIENT TEMPERATURE AT CHANGE INDICATORS HYDRAULIC FOREST MACHINE
The paper presents the experimental study of the hydraulic system and the oils at different temperatures of the working fluid. In the start-up period, almost all the oils and hydraulic systems, and negative fluid temperatures, vacuum in the suction chamber of the pump reaches its maximum value. During this period, there is an intensive air leak through the density of connections is not the suction line, pump seals and starts to separate the air from the hydraulic fluid. The results obtained clearly show that at the time of the fall of the vacuum to acceptable values is greatly influenced by the nature of placement of hydraulic equipment and the availability of additional heat sources. Based on these studies concluded that reducing the time span of the hydraulic system under vacuum at the pump inlet exceeding 0.02; 0.03 MPa without making structural changes to the system and without a pre-cooked preparation is virtually impossible.