长臂挖掘机

省时 省力 省财富

1．发动机预热与全自动加热的差别？

What is the difference between engine preheating and fully automatic heating?

答:发动机预热的前提条件是：冷却液温度小于10℃时，根据QOS控制板全自动开展预热塞加温。当钥匙开关在ON时，加热期为20秒，在其中加热显示灯照亮8秒。加热结束后，钥匙开关在START时，汽车发动机会继续加热30秒。

Answer: The prerequisite for engine preheating is that when the coolant temperature is less than 10 ℃, the preheating plug will be automatically heated according to the QOS control board. When the key switch is on, the heating period is 20 seconds, and the heating display light illuminates for 8 seconds. After the heating is completed, when the key switch is in START, the car engine will continue to heat for 30 seconds.

全自动加热的前提条件是：当齿轮油小于0℃时，启动汽车发动机，液压机油温传感器将电子信号传到MC,MC推动EC电机，以总体目标转速比1250rpm运行，运转时间为15分钟左右或齿轮油温升到2℃左右时，全自动加热消除。

The prerequisite for fully automatic heating is: when the gear oil temperature is less than 0 ℃, the car engine is started, and the hydraulic oil temperature sensor sends an electronic signal to the MC. The MC drives the EC motor to run at the overall target speed ratio of 1250rpm, with a running time of about 15 minutes or when the gear oil temperature rises to 2 ℃, the fully automatic heating is eliminated.

2．涡轮增压与中冷器的功效？

2. What are the effects of turbocharging and intercoolers?

答：涡轮增压的重要的作用是使柴油发动机在排气量不变的前提下提升功率，改进点燃实际效果，提升机械能，减少燃油消耗率，提升混和实际效果，给予空然比，减低有害物质的排出，改进低速档特性，达到汽车发动机在低速档使高扭矩的特点。

Answer: The important role of turbocharging is to increase the power of diesel engines without changing the exhaust volume, improve the actual ignition effect, increase mechanical energy, reduce fuel consumption rate, improve the actual mixing effect, provide air to fuel ratio, reduce the emission of harmful substances, improve the low-speed characteristics, and achieve the characteristic of high torque for automotive engines in low-speed gears.

中冷器作用是因为涡轮增压吸入空气经压缩环境温度会提高，气体在流通环节中与进气管壁磨擦还会继续进一步提温，危害充气效率，中冷器如同热管散热器，将气体热量根据它而散到空气中去，快速降温还可以提升气体进气口相对密度，进一步提高发动机有效功率。

The function of an intercooler is because the turbocharged intake air will increase the ambient temperature after compression, and the friction between the gas and the intake pipe wall during the circulation process will further increase the temperature, endangering the inflation efficiency. The intercooler is like a heat pipe radiator, which disperses the gas heat into the air according to it. Rapid cooling can also increase the relative density of the gas inlet, further improving the effective power of the engine.

3．履带式张松紧度在各个工作状况中的变化？

3. How does the tension of the track type change in various working conditions?

答：在平整扎实的地面，履带式应调节略紧；有多石高低不平的路面，履带式应调节略松；在绵软的地面，履带式应调节略松。

Answer: On a flat and solid ground, the track type should be adjusted slightly tighter; On uneven roads with many stones, the track type should be adjusted slightly loosely; On soft ground, the track type should be adjusted slightly loosely.

4．设备在加减速或负载变化时，消声器出现股股冒烟怎么解释？

4. How to explain the smoke emission from the muffler during acceleration, deceleration, or load changes of the equipment?

答：因为提升中冷器后，使进气口安全通道拉长，进气口摩擦阻力提升。当设备在加减速或负载变化时，汽车发动机调速电机调整汽柴油提供，进而破坏原先的空燃比，以至于在一瞬间出现股股冒烟，此情况为正常情况。

Answer: Because lifting the intercooler elongates the safety channel at the air inlet and increases the frictional resistance at the air inlet. When the equipment undergoes acceleration, deceleration, or load changes, the automobile engine speed control motor adjusts the supply of gasoline and diesel, thereby damaging the original air fuel ratio, resulting in a sudden smoke emission. This is a normal situation.

5．防止设备导致倾覆的一些常见问题？

5. Some common problems in preventing equipment from overturning?

答：严禁满铲时斗杆全伸快速旋转；软基处理工作时需避免设备凹陷；防止设备吊载走动；防止设备爬斜坡时倾覆；防止上坡转为时倾覆；托车运载时防止倾覆。

Answer: It is strictly prohibited to fully extend and quickly rotate the bucket handle when the shovel is full; Avoid equipment depression during soft foundation treatment work; Prevent equipment from being lifted or moved; Prevent equipment from overturning when climbing slopes; Prevent overturning when turning uphill; Prevent overturning when carrying on a scooter.