汽车英语-冷却系维修.doc

Section 6 Cooling System Service学习目标:掌握冷却系统的专业英文词汇；熟悉汽车专业英语表达习惯；能借助英文理解丰田卡罗拉车型冷却系统的英文维修手册。Cooling System OperationThe cooling system controls temperature through heat transfer. Heat always moves from a hot object to a cooler object, so the cooling system transfers heat from the engine to the circulating coolant. Then the coolant transfers heat to the airflow through the radiator. The temperature control and heat transfer are based on the pressure of the system and coolant circulationTransfer trnsf; trns-; 转让，转移，传递，换车circulatingskj,let循环（circulate skjlet的ing形式）；流通】Toyota Corolla Repair ManualBefore servicing the cooling system, you need to pay particular attention to the following ：To avoid the danger of being burned, do not remove the reservoir cap while the engine and the radiator are still hot, as fluid and steam can be blown out under pressure.particular ptkjl 特别的，详细的 reservoir rezvw: (r) 水库、蓄水池、容器，储液罐 radiator redet 散热器，暖气片 Fluid flud 液体、流体 1、Inspect the Cooling System for Leaks Leak lik 泄露、漏洞 （1）Fill the radiator with coolant and attach a radiator cap tester.（2）Warm up the engine.（3）Pump the radiator cap tester to 118 kPa, and check the pressure does not drop.Pump 打气Hint 提示：If the pressure drops, check the hoses, radiator or water pump for leaks. If no external leaks are found，check the heater core, the cylinder block and thehead. External kstn()l; ek- n.外面，外部，表面；adj. 外面的；外部的Hose hz 软管 长筒袜、男子穿的紧身裤；heater core 加热器芯 （暖风机芯）Heater hit 加热器，暖气，发热器core k 核心、要点cylinder block and the head.缸体和缸盖2、Check Engine Coolant Level at Reservoir （储液罐）The engine coolant level should be between the “LOW” and “FULL” line.Notice 注意：The engine coolant level is checked when the engine is cold only.Hint 提示：If low, check for leaks and add “Toyota Long Life Coolant” or equivalent up to the “FULL” line. equivalent kwv()l()nt 相等的；等价的3、Check Engine Coolant Quality Quality kwlt 质量，品质（1）Remove the radiator cap (Please pay particular attention to be burned).（2）Check if there are any excessive deposits of rust or scale around the radiator cap and radiator filler holes. The coolant should be free from oil.Excessive ksesv; ek- 过多的，过量的Deposit dpzt 沉积物，存款Hint 提示：if excessively dirty, replace the coolant.（3） Reinstall the radiator cap. Reinstall ,ri:inst:l 重新设置，重新安装4. Inspect the Thermostat Thermostat mstt 节温器There are three ways to check the thermostat, one of which is “Heat the Water.，Hint 提示：The thermostat is numbered with the valve opening temperature, as is shown in Figure below The thermostat numbered with the valve opening temperature（1）Remove the thermostat from the engine and put it close.（2）Immerse the thermostat in water and gradually heat the water (See Figure below) （3）Check the valve opening tenperature (80 -84 ).Immerse ms 是沉入，是陷入Hint 提示：If the valve opening temperature is not as specified, replace the thermostat.Specified spesifaid 规定的，指定的，详细说明的（4）Check the valve lift (10 mm or more at 90) (See Figure above)Hint 提示If the valve lift is not as specified, replace the thermostat.（5） Check that the valve is fully closed when the thermostat is at low temperatures （below 77 )Hint 提示：If the valve is not closed，replace the thermostat.5、Inspect the Radiator Cap Sub-Assembly（分总成）Assembly sembl 装配 Sub- 分支，附属Notice 注意：If the reservoir cap has contaminations, always rinse it with water. Before using a radiator cap tester, wet the relief valve and the pressure valve with engine coolant or water.Contamination kn,tmnen 污染，玷污；污染物Rinse rns 冲洗，冲洗掉 漂净relief valve 安全阀 relief rlif 救济，减轻（1）Using a radiator cap tester，slowly pump the tester and check that air is coming from the vacuum valve.Notice 注意：Pump speed： 1 push /(3 seconds or more). Push the pump at a constant speed.（一次推压/（3秒或以上）以恒速推压泵Constant 恒定的 常量Hint 提示If air is not coming from the vacuum valve，replace the reservoir cap.（2）Pump the tester and measure the relief valve opening pressure.Notice注意Standard stndd opening pressure ： 74 -103 kPa； Minimum mnmm （最小）opening pressure ： 59 kPa. This pump speed is for the first pump only (in order to close the vacuum valve).这个泵速仅适于第一次泵气，为的是关闭真空阀） After that, the pump speed can be reduced.Hint提示： Pump speed： 1 push within 1 second.一秒钟推压一次Use the testers maximum（最大） reading as the opening pressure. If the opening pressure is less than the minimum, replace the reservoir cap.6、Coolant Replacement 冷却液的更换A coolant change should be performed pfm at every two years or 36, 000 km. Perform pfm 表演，完成、执行，机器运转（1） Drain coolant (when the engine is cold). Drain dren 排水 流净a. Remove the radiator cap.b. Loosen the radiator drain plug and drain the coolant. Plug 塞子，插头（2） Add coolant(always check the owners manual for the specifications for the recommended engine coolant). recommended ,rkmndid 被推荐的Specification ,spesfke()n 说明书，规格，详述a. Tighten the radiator drain plug, and pour coolant into the radiator until it overflows. Capacity kpst容量： 6.7 liters(2ZZ - GE)Hint 提示： Press hard the radiator inlet and outlet hoses several times. If the coolant level gets lower, pour（灌） coolant.b. Tighten the radiator cap.c. Pour engine coolant into the reservoir tank until it reaches full line.d. Warm up the engine until the thermostat valve begins to open.Hint提示：Press hard the radiator inlet and outlet hoses several times during the warming up.Inlet 入口outlet 出口 e. Stop the engine and wait until the coolant temperature gets cold. Then remove the radiator cap to check the coolant level.f. If the level gets lower, perform the procedures above aga