我公司现有62套钻机,配备186台12V190系列柴油机(以下简称190柴油机)。使用初期,根据使用要求和当时润滑油品种类,为减少摩擦损失,改善柴油机起动性能,选用HC-11号、HC-14号普通柴油机油。由于油品质量指标较低,使用时间短,消耗量大,导致190柴油机使用寿命偏低。据统计,1981-1985年间,190柴油机新机的平均使用寿命仅为6114小时,大修后的平均使用寿命为5966小时,换油周期为250小时。 My company has 62 sets of rigs, equipped with 186 sets of 12V190 series diesel engine (hereinafter referred to as 190 diesel engine). Initial use, according to the requirements and types of lubricants at the time, in order to reduce friction losses, improve diesel engine starting performance, the choice of HC-11, HC-14 ordinary diesel oil. Due to the low oil quality indicators, the use of time is short, large consumption, resulting in 190 diesel engine life is low. According to statistics, during 1981-1985, the average service life of new diesel engine 190 was only 6114 hours, the average service life after overhaul was 5966 hours, and the oil change period was 250 hours.