一台丰收-3.0型联合收割机上的4115发动机检修了一个星期,组装4次、磨了两次曲轴、更换了一个新轴,仍没有排除烧Ⅱ缸连杆瓦的故障。当时正是麦收季节,7天少收小麦500余亩,少得作业费4000余元(不计晚收小麦损失)。经多方检查仍未查 The 4115 engine on a Harvest-3.0 Combine harnesses was overhaul for a week, assembled four times, the crankshaft was milled twice and a new shaft replaced, still failing to eliminate the burnout of the connecting rod of the burn-in II cylinder. At that time it was the wheat harvest season, less than 500 acres of wheat received 7 days, less than 4,000 yuan operating expenses (excluding late losses of wheat). After multi-check has not yet checked