农业机械拆卸后应将零部件的油污、积炭及水垢等按技术要求清洗干净,否则这些脏物直接影响技术鉴定的准确性从而影响维修质量。1油污清洗(1)有机溶剂除油。如汽油、柴油、煤油、酒精以及三氯乙烯等。发动机机体油道、曲轴油道等,用碱溶液不 After demolition of agricultural machinery parts should be oil, coke and scale, according to the technical requirements of the clean, or these dirt directly affect the accuracy of technical appraisal thus affecting the quality of maintenance. 1 oil cleaning (1) organic solvent degreasing. Such as gasoline, diesel, kerosene, alcohol and trichlorethylene. Engine body oil passages, crankshaft oil passages, etc., with alkaline solution is not