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A10VSO71DG/31R-PPA12N00
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A10VSO71FHD/31R-PPA12N00
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A10VSO100DR/31R-PPA12N00
A10VSO100DR/31R-PPA12K01
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A10VSO100DFE1/31R-PPA12K02
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A10VSO140DR/31R-PPB12N00
A10VSO140DR/31R-PPB12K01
A10VSO140DFR1/31R-PPB12N00
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A10VSO140DFR1/31R-PPB12K01
A10VSO140DFR/31R-PPB12N00
A10VSO140DFLR/31R-PPB12N00
A10VSO140DG/31R-PPB12N00
A10VSO140DRG/31R-PPB12N00
A10VSO140DFE1/31R-PPB12N00
A10VSO140DFE1/31R-PPB12N002
A10VSO140FHD/31R-PPB12N00
A10VSO140ED/31R-PPB12N00
在判定工程机械故障时，一般常用排除法和比较法，按照从简单到复杂、先外表后内部、先总成再部件的顺序进行，切忌不问青红皂白，盲目大拆大卸。盲目更换零部件，一味换件修理的现象不同程度地存在工程机械故障的判断和排除相对困难一些，有些维修人员一贯采用换件试验的方法，不论大件小件，只要认为可能是导致故障的零部件，一个一个更换试验，结果非但故障没排除，且把不该更换的零部件随意更换了，增加了消费者的开支。式II型挖掘机，因转向困难到某厂维修，厂家更换了叶片泵（转向泵）、溢流阀、转向油缸等零部件也无济于事，后发现故障原因是转向油箱到叶片泵的一根液压油管内部老化胶脱，致使液压油液流量及压力不足所致。
