FEMA, (Failure Modes and Effects Analysis), is an important qualitative technique ofcredible analyse. It research potential failure models in the components of product, and measurethe failure model’s effect to other components of product and function. FMEA, as matureengineering technique, is extensively used in aviation, national defence, automaker, electronics,mechanical engineering, etc. FMEA is the most effective prevention from problem or failture.Chews the track breakdown is big problem about quality in bulldozer product’s process.For example, it leads to bankruptcy of some enterprise. Whether solving this kind of problem leadto enterprise surviving or bankruptcy after reform.This article includes following chapters. First chapter gives recapitulative introduction andanalyse for analytical method. Second chapter gives system introduction for FMEA theory, andproves that FMEA is the most effective tools to prevent from problem or failture. Third chaptertells readers how to study FMEA in manufacture, how to create FMEA process in order to find outthe cause about failure about manufacture process or assembly process, and how to decrease therate of failure model and to increase degree of identify. At last chapter, it takes example of Qinghaiindustry & manufacture to validate FMEA theory by three steps. Analyze present process tochews the track breakdown. Find out the process cause to chews the track breakdown.Make new process to avoid chews the track breakdown. Base on product’s test data of newprocess, chews the track breakdown is thorough under the control, accordingly improvebulldozer’s dependability and increase product’s competence.
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