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1台履带式起重机作业时,其配置的康明斯柴油机加油通气孔盖上出现水蒸气凝结现象,机油未见乳化,油面也未见增高,初步推断是少量冷却液进入了油底壳。更换机油使用几天后又出现上述情况。修理人员到施工现场进行鉴定,怀疑是汽缸套出现裂纹,建议将柴油机拆下运回修理厂修理。由于施工现场工期紧张,施工单位希望在现场进行修理,以免停机误事。柴油机油底壳进入冷却液的主要原因包括以下5个方面:一是汽缸垫损坏漏气;二是汽缸盖、汽缸体变形或有
1 crawler crane operation, the configuration of Cummins Diesel gas vent vent condensation phenomenon occurs, the oil has not been emulsified, the oil surface has not seen increased, the initial inference is that a small amount of coolant into the oil pan. A few days after the replacement of oil used again the above situation. Repair staff to the construction site for identification, suspected cylinder liner cracks, it is recommended to remove the diesel engine back to the repair shop repair. Due to the tight construction site duration, the construction unit hopes to carry out repairs on site to avoid downtime and error. Diesel engine oil pan into the coolant the main reasons include the following five aspects: First, the cylinder gasket damage leaks; the second is the cylinder head, the cylinder deform or have