Main bearing lubrication system of diagnosis and treatment of pollution in the main hydraulic system failure

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1, fault detection and analysis
In order to accurately determine the cause of the malfunction, a the many oily detection and faul t diagnosis work.
(1) repeatedly extracted from different parts of the main hydraulic system oil sample has spectrum of oil and water testing center in Xi an and Beijing, Lanzhou, iron spectrum analysis, found that the oil sample containing a large number of SIOZ particles and oily changes. Judgment may be into powder and other oil in the hydraulic system, but exactly what parts of pollution sources, was still in the lookup.
(2) the electrical control components of the TBM host by testing, found no electrical control components, parameters, and normal operation.roller thrust bearings
(3) of the hydraulic components focus on detecting individual components Overhauling, such as # 4, # 5 hydraulic pump, # 1, # 2 belt machine hydraulic motor and some control valves. In addition to the normal wear clean hydraulic system is working properly.
(4) In order to accurately find the main source of pollution of the hydraulic system, the potential contaminants into the hydraulic system analysis. Pollutants may enter to take charge of the hydraulic system links:
a hydraulic piping rock smashed and treatment is not timely, inappropriate;bearing factory
b ballast direct or indirect contact with the hydraulic components, such as the fuel tank of the dust cover respirators, steel arch installation system, concrete tank crane systems, material lifting platform, the upper material crane systems # 1 and 2 # belt conveyor system, the hydraulic motor of the main bearing lubrication system, shield systems, and so on.