The normal pressure range of gearbox is 1.08 ~ 1.47mpa, and the pressure is lower than 1.08mpa. It is considered that the variable speed oil pressure is too low, which will lead to insufficient driving force of 4-5 square automatic feeding mixer, weak whole machine and no gear start.
减压阀的功能是通过压力调节弹簧将较高的输入压力调节到规定的输出压力，并确保输出压力的平衡。一旦减压阀的压力调节弹簧损坏，变速箱将不能保证正常的输出压力。
The function of the pressure reducing valve is to adjust the higher input pressure to the specified output pressure through the pressure regulating spring and ensure the balance of the output pressure. Once the pressure regulating spring of the pressure reducing valve is damaged, the transmission will not guarantee the normal output pressure.
其次，压力调节器没有适当调整
Secondly, the pressure regulator is not properly adjusted
压力调节阀通过压力调节阀芯控制变速器的输出压力。如果输出压力太小，变速箱油压将太低。
The pressure regulating valve controls the output pressure of the transmission through the pressure regulating valve core. If the output pressure is too low, the transmission oil pressure will be too low.
三是管道油封严重漏油。
Third, the oil seal of the pipeline leaks seriously.
检查变速箱油盘到变速箱泵吸入管路是否泄漏。如果发现漏油，请修理或更换新线路。
Check the transmission oil pan to transmission pump suction line for leakage. If oil leakage is found, repair or replace the line.
如何使用45方自动上料搅拌车散热器
How to use the radiator of 4-5 square automatic feeding mixer truck
1.备用散热器的有效环境应保持通风干燥。
1. The effective environment of the standby radiator shall be ventilated and dry.
2.软化处理后，建议使用软水和硬水，以避免散热器内部堵塞和水垢的产生。
2. After softening treatment, it is recommended to use soft water and hard water to avoid blockage and scale in the radiator.
3.在冬季，为了防止结冰引起的核心结冰，如果45方自动上料搅拌车长时间停放或间接停止，应使用水箱盖和排水开关排出所有水。
3. In winter, in order to prevent core icing caused by icing, if the 4-5-party automatic loading mixer stops for a long time or stops indirectly, all water shall be discharged by using the water tank cover and drainage switch.
4.水位计应每3个月清洗一次或根据实际情况清洗，应取出部件并用温水和无腐蚀性清洗剂清洗。
4. The water level gauge shall be cleaned every 3 months or according to the actual situation. The parts shall be taken out and cleaned with warm water and non corrosive cleaning agent.
5.当散热器完全排空并重新注满时，应将发动机缸体的排水开关扭开，当有水流出时，再将其关闭以避免起泡。
5. When the radiator is completely drained and refilled, first turn on the drain switch of the engine block, and then close it when water flows out to avoid foaming.
6.在日常使用中应随时检查水位，冷却后停止水。加水时，慢慢打开水箱盖，操作人员的身体应尽可能远离供水口，以防止高压蒸汽油喷出而导致灼伤。
6. The water level shall be checked at any time during daily use, and the water shall be stopped after cooling. When adding water, slowly open the water tank cover, and the operator's body should be as far away from the water supply port as possible to prevent burns caused by the ejection of high-pressure steam gasoline.
7.散热器不应与任何酸，碱或其他腐蚀性物质接触。
7. The radiator shall not contact with any acid, alkali or other corrosive substances.
8.在使用防冻液时，为避免散热器的腐蚀，请务必使用常规厂家生产的长期防锈防冻液，并符合标准。
8. When using antifreeze, in order to avoid the corrosion of radiator, please be sure to use the long-term anti rust antifreeze produced by conventional manufacturers and comply with national standards.
9.根据实际情况，用户应彻底清洁散热器一三个月。清洁时，沿反向进气口侧用清水冲洗。
9. According to the actual situation, the user should thoroughly clean the radiator for one to three months. When cleaning, flush with clean water along the reverse air inlet side.
10.在安装散热器时，请勿损坏散热片（切片）和保险杠散热片，以确保散热和密封。
10. When installing the radiator, do not damage the heat sink (slice) and bumper heat sink to ensure heat dissipation and sealing.
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