WD615欧Ⅱ系列柴油机维修保养手册
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Maintenance Manual for WD615 Series EuroⅡDiesel Engine
1.机体流出冷却液
Coolant flowing from
cylinder block
2.调节器
Thermostat
3.旁通阀
Bypass valve
4.流入水泵的冷却液
Coolant flowing into water
pump
5.旁通阀关闭
Bypass valve closed
6.冷却液流入散热器
Coolant flowing into the radiator