Abstract
Efficiency of exploitation depends on the use of the modern diagnostic systems that will allow in the conditions of a limit information with sufficient exactness to determine the technical state of hydraulic drive during all term of exploitation. Existent facilities of diagnosticating differentiate on many criteria that is produced by exploiting organizations, to basic belong: exactness and cost of complex of instrumentation-diagnostic equipment. Effective facilities of the technical diagnosticating have an important value during exploitation of hydraulic drive. High durability of devices, small sizes and mass, and also reliability and protracted tenure of employment at the high informing are pre-condition for rigging of instrumentation-diagnostic equipment of firm "Parker" complexes enterprises, that engage in repair, operating supervisions and modernisation of hydraulic drive of different mobile machines (building-travelling, lifting-transport and communal, tractors, agricultural combines and other. Measuring of hydraulic parameters and their analysis is basis of the reliable debugging during exploitation of hydraulic drive and choice of the optimal swept volumes of hy- dromashines and conditional passage-ways of hydraulic apparatuses. Measuring devices provide measuring, indication and record on PC (by means of own software with a multi-channel exit) of analog values of pressure, peaks of pressures, over falls of pressures, temperature of working liquid in a hydraulic reservoir and separate knots of hydraulic drive, frequency of rotation of pumps and hydromotors, and also electric parameters of feed of arrangements of automatic hydraulic drive (proportional electromagnets of hydrodistributors, reduction and preventive valves). The high fastacting of record of measureable parameters and small error of devices promote authenticity of analysis of work of hydraulic drive in the static and dynamic modes of loading. One of the most widespread foreign firms - producers of hydraulic products and diagnostic equipment there is a firm Parker.