1、解体及初检

1. Disassembly and initial inspection

这是变速箱维修中第一道步骤，将变速箱全部彻底解体，包括内部油泵、离合器、活塞、行星架、阀体(滑阀箱)、差速器、变扭器等，所有的解体都严格按照技术规范和依靠大量的专用设备和工具进行，否则会引起零件损坏。解体完毕后按照标准技术数据对所有的零件进行初步检测并根据变速箱的实际故障查出故障点。

This is the first step in gearbox maintenance, which involves completely disassembling the gearbox, including the internal oil pump, clutch, piston, planetary carrier, valve body (slide valve box), differential, torque converter, etc. All disassembly must strictly follow technical specifications and rely on a large number of specialized equipment and tools, otherwise it may cause damage to the parts. After disassembly, conduct a preliminary inspection of all parts according to standard technical data and identify the fault point based on the actual fault of the gearbox.

2、零件清洗及检测

2. Parts cleaning and inspection

零件清洗在维修过程中是一个非常重要的工序，清洁度是维修质量保证的关键因素，任何细小的杂质都会对变速箱的工作品质产生巨大影响。零件清洗完毕后，送入装配工位，按照标准对所有的零件进行再次检测，确定所有需要维修材料，准备组装。

Part cleaning is a very important process in the maintenance process, and cleanliness is a key factor in ensuring maintenance quality. Any small impurities can have a huge impact on the working quality of the gearbox. After the parts are cleaned, they are sent to the assembly station and all parts are retested according to the standards to determine all materials that need to be repaired and ready for assembly.

3、阀体清洗、检修

3. Valve body cleaning and maintenance

此过程和上一步骤同时进行，阀体(滑阀箱)是自动变速箱的核心元件，铸造精密，需要很专业的人员才可以操作此步骤。作为专业维修需要将阀体全部解体，解体后彻底清洗，然后检查所有滑阀及阀体的磨损根据实际情况维修。组装完毕后还要与标准数据对比严格进行压力测试，只有符合标准数据范围内的阀体才可以进入到组装工位。

This process is carried out simultaneously with the previous step. The valve body (slide valve box) is the core component of the automatic transmission, with precision casting, and requires very professional personnel to operate this step. As a professional maintenance, it is necessary to disassemble all valve bodies, thoroughly clean them after disassembly, and then inspect all slide valves and valve bodies for wear and repair according to the actual situation. After assembly, strict pressure testing should be carried out by comparing with standard data. Only valve bodies that meet the standard data range can enter the assembly station.

4、小总成组装

4. Assembly of small assemblies

小总成组装是对变速箱维修过程中内部组件的再检和调整，为总成总成装配的前一道工序。

Small assembly is the re inspection and adjustment of internal components during the maintenance process of the gearbox, which is the previous process of assembly of the assembly.

5、总成组装

5. Assembly

总成组装是装配最后一道工序，需要在特殊的工作环境中完成。所有组件的位置、间隙、预紧力等都必须严格按照技术规范进行操作。总成装配完毕后还要进行静态压力测试，在达到技术标准后才可以进入下一道工序。

Assembly is the final process of assembly, which needs to be completed in a special working environment. All components must be operated strictly in accordance with technical specifications, including their positions, clearances, and preloading forces. After the assembly is completed, a static pressure test is also required, and the next process can only proceed after meeting the technical standards.

6、总成动态测试

6. Assembly dynamic testing

总成动态测试是通过测试台模拟汽车的工作对变速箱进行动态测试。

Assembly dynamic testing is a dynamic testing of the gearbox by simulating the operation of a car on a test bench.

变速箱故障诊断分析方法

Diagnostic analysis method for gearbox faults