In case of failure maintenance of concrete mixer truck, the cab of concrete mixer truck shall be closed, the engine shall be shut down, and necessary safety warnings shall be made. The specific safety operation guidelines are as follows: when concrete mixer truck needs maintenance or inspection, a sign board of "under maintenance" must be hung at an obvious position. Pull out the switch key and pull the handbrake. When troubleshooting the bottom of the concrete tank truck, there shall be firm support facilities, and the front and rear wheels shall be drilled with wooden wedges to prevent movement and sliding. When two or more persons operate at the same time, one person shall be appointed to command, and they must be coordinated and concentrated. They shall not get on the vehicle without the command of the commander.

移动搅拌车罐体或部件时，要有可靠的起重设备。东风创普3方搅拌车 如需人工搭抬部件移位时，必须相互照应，将部件放置牢靠，防止歪倒伤人。搅拌车修理时，严禁使用明火照明。使用汽油清洗零部件时，要隔绝明火。用过的废油不能随意泼洒，要放在桶内妥善处理，油摸布、废棉纱应置于固定容器内，并及时清洗或处理。

Reliable lifting equipment shall be provided when moving the tank or parts of the mixer truck. If the components of Dongfeng chuangpu 3-party mixer truck need to be lifted manually, they must take care of each other and place the components firmly to prevent people from being injured by tilting. It is strictly prohibited to use open fire for lighting when the mixer is repaired. When cleaning parts with gasoline, keep away from open fire. The used waste oil shall not be spilled at will, but shall be properly disposed of in the barrel. The oil touch cloth and waste cotton yarn shall be placed in a fixed container and cleaned or disposed of in time.

机器部件螺丝需紧固时，必须使用开口搬手，避免滑方造成事故。使用手动电动工具时，必须佩带手套，防护眼镜，并设专人控制电器开关，以便发生故障及时切断电源，避免事故发生。如果混凝土搅拌车故障不能维修排除时，需要咨询搅拌车厂家技术和售后服务人员，必要时需要混凝土搅拌车技术人员现场指导和维修。

When the screws of machine parts need to be tightened, open handles must be used to avoid accidents caused by sliding. When using manual electric tools, you must wear safety gloves and protective glasses, and assign a special person to control the electrical switch, so as to cut off the power supply in time in case of failure and avoid accidents. If the failure of the concrete mixer cannot be repaired and eliminated, the technical and after-sales service personnel of the mixer manufacturer shall be consulted, and the on-site guidance and maintenance of the concrete mixer technician shall be required if necessary.

此外，高温下汽油容易蒸发，发动机燃料供给系统容易发生“气阻”，更影响发动机正常工作。因此要特别注意冷却系统的正常运行，冷却水、电瓶水、机油夏季蒸发较快，要及时检查，及时补充，尽量避免超负荷运行，同时应换用高黏度的润滑油，并适当缩短换油周期。

In addition, gasoline is easy to evaporate under high temperature, and the engine fuel supply system is prone to "air resistance", which further affects the normal operation of the engine. Therefore, pay special attention to the normal operation of the cooling system. The cooling water, battery water and engine oil evaporate rapidly in summer. Check and supplement them in time to avoid overload operation as far as possible. At the same time, replace with high viscosity lubricating oil and shorten the oil change cycle appropriately.

电子元件高温下经常会发生车辆自燃的情况，其中电子元件短路是造成车辆自燃的一个重要原因，所以在行车过程中，重汽3方搅拌车 一旦发现车辆电子元件出现问题，一定要及时检查，不可忽视。水箱高温天气行车，大运运途3方搅拌车水箱内的冷却水蒸发加快，发现缺水时要立即停车，等怠速运转降温后再补充冷却水，注意开水箱盖防烫伤。所以，分析研究火花点火系统电磁干扰的形成机理，采取切实有效的抑制措施，提高火花点火系统的电磁兼容性设计是尤为重要的。点火系统的电磁干扰主要来源于高压点火线、火花塞和点火线圈等儿个部件。

Vehicle spontaneous combustion often occurs when electronic components are at high temperature, and the short circuit of electronic components is an important reason for vehicle spontaneous combustion. Therefore, in the process of driving, once the trump 3-party mixer of heavy truck finds problems with vehicle electronic components, it must be checked in time and can not be ignored. When driving in hot weather, the cooling water in the water tank of the 3-party mixer truck evaporates faster during the big transportation. In case of water shortage, stop immediately, supplement the cooling water after idling and cooling, and pay attention to opening the water tank cover to prevent scalding. Therefore, it is particularly important to analyze and study the formation mechanism of electromagnetic interference in spark ignition system, take practical and effective suppression measures, and improve the electromagnetic compatibility design of spark ignition system. The electromagnetic interference of ignition system mainly comes from high-voltage ignition wire, spark plug, ignition coil and other components.

当次级电路电压达到火花塞气隙击穿电压时，火花塞问隙被击穿，储存于火花塞分布电容中的能量迅速释放，放电时问极短，仅数微秒，但形成的放电电流则非常大，可达几十安培，这个过程称为电容放电过程。这一阶段的放电使次级电路的电压和电流形成陡峭的脉冲形式，这种宽带脉冲通过裸露的高压点火线对外辐射电磁波，造成周围环境的电磁干扰。

When the secondary circuit voltage reaches the spark plug air gap breakdown voltage, the spark plug gap is broken down, and the energy stored in the spark plug distribution capacitance is released rapidly. The discharge time is very short, only a few microseconds, but the discharge current is very large, up to tens of amps. This process is called capacitance discharge process. The discharge at this stage makes the voltage and current of the secondary circuit form a steep pulse form. This broadband pulse radiates electromagnetic waves through the exposed high-voltage ignition line, causing electromagnetic interference in the surrounding environment.