Dongguan automatic transmission repair process

First, the overall disintegration: disintegration automatic transmission as the maintenance of the first step, as a professional difference with ordinary plant maintenance plant is complete disintegration, dissolution of ordinary service station only to steel clutch gearbox group, friction plates, pumps and other more peripheral segments of disintegration, but for Beijing Jing Jie automatic transmission repair Ltd. Hengsheng such a professional factory to do decomposition: include torque converter, hydraulic control Circuit boards assembly, clutch actuator, differential decomposition and other main part of the rotation system, a planetary gear system. Decomposition automatic transmission requires strict accordance with the standards of the production process, do not go any range of operations will lead to transmission damage hydraulic components. These decomposition need the help of a lot of special tools and equipment to complete, such as the decomposition of the torque converter requires special tools, special fixtures, special tools, special converter welding machines, high-pressure leak test instrument. Why the need for such a detailed gearbox exploded, mainly thorough examination of each of the smallest units using standard parts and complete replacement needs sealing element and disposable parts. The only way to make the greatest degree of recovery gearbox factory quality standards and service life. Second, parts cleaning: Parts cleaning is a very important part of the service, it is only because the automatic transmission parts under the premise to be able to completely clean accurate measurement, inspection of small Xun bad, in order to determine whether the wear parts excessive, and the transmission is in a fully enclosed inside the box to work, any small impurities will affect the performance of the transmission. Parts need to go through kerosene cleaning, ultrasonic cleaning, high temperature cleaning, compressed air, four processes to complete. Part first use kerosene because kerosene permeability is very strong, after kerosene fully penetrate ultrasonic cleaning for the next foundation, through ultrasonic high frequency oscillation and cleaning agents scouring parts, with parts do thorough dirt separation, the main purpose is to high-temperature cleaning agent off the surface of the part of the oil, and finally through the compressed air drying, the parts before they reach the standard. Third, part inspection: After cleaning the parts you need the parts for testing, determine whether the wear parts have been exceeded, the principles of this step is neither missing a part, can not let go an excessive part. Parts rubber seal needs to be thoroughly obsolete. Friction material needs to be completely replaced. Oil needs to be thoroughly obsolete. Parts need to adjust completely replaced. Hydraulic change button need disintegration, each part of the internal testing. Filter needs to be completely replaced. Solenoid valves and other electronic components requires thorough testing. Bearing more than life need complete replacement. Other parts are in accordance with the by-part standard testing. Fourth, the Panel installation and testing: team installed before the assembly of a process, by means of the detection process team to achieve the final assembly and quality assurance. Panel mounted automatic transmission include: 1, the pump assembly testing. 2, the clutch assembly and testing groups. 3, the planetary gear assembly and testing. 4, the slide valve box assembly and testing. 5, the differential assembly and testing. 6, hydraulic change button assembly welding and testing. 7, the assembly of other components. Assembly requires little assembly in a closed air-conditioned room to complete, the group mounted internal needs including technology upgrades and changes, the group requires a separate test equipment to ensure strict technical standards. Five assembly: assembly is a final assembly process, and only up to standard parts and small assemblies to complete this procedure can be sent rearward. Assembly required in a closed air-conditioning plant to the job. Detection of the assembly process is to ensure the quality of the fundamental, assembly requires strict accordance with the technical standards, technological improvements need to perform the upgrade in the assembly. On each cartridge needs engraved with the company's stamp, date of manufacture and assembly, including human identification code and the need for specific assembly screws for tamper identity. Sixth, assembly dynamic test: assembly dynamic test by dynamic testing machine for dynamic simulation of the transmission detection step. Assembly dynamic testing machine can simulate various operating conditions the gearbox, for example into the file, speed, upshifts, lock, high-speed operation, accelerate downshift, kickdown, coasting downshift, emergency braking downshift, completely stopped, Reverse various conditions, etc; assembly testing machine can detect the flow speed, oil pressure, oil, smooth-shifting, abnormal sound, whether oil spills and other technical indicators. Dynamic tested gearbox operation to be recorded on file. http://www.yhfat.com/about-us/detail-66588.html