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1.保持发动机正常的工作状态(1)发动机正常工作时的水温为70～95℃,机油温度为70～90℃,机油压力为196～294千帕。(2)压缩行程终了时,气缸压力为2940～3920千帕。(3)排气管排烟良好。(4)油耗及转速符合规定。2.防止疲劳损坏
1. To maintain the normal working condition of the engine (1) The normal working hours of the engine is 70 ~ 95 ℃, oil temperature is 70 ~ 90 ℃, oil pressure is 196 ~ 294 kPa. (2) At the end of the compression stroke, the cylinder pressure is 2940 to 3920 kPa. (3) exhaust pipe smoke well. (4) fuel consumption and speed meet the regulations. 2. To prevent fatigue damage