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.
減壓閥的功能是通過壓力調節彈簧將較高的輸入壓力調節到規定的輸出壓力，並確保輸出壓力的平衡。一旦減壓閥的壓力調節彈簧損壞，變速箱將不能保證正常的輸出壓力。
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，壓力調節器沒有適當調整
Secondly, the pressure regulator is not properly adjusted
壓力調節閥通過壓力調節閥芯控製變速器的輸出壓力。如果輸出壓力太小，變速箱油壓將太低。
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.
三是管道油封嚴重漏油。
Third, the oil seal of the pipeline leaks seriously.
檢查變速箱油盤到變速箱泵吸入管路是否泄漏。如果發現漏油，請修理或更換新線路。
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4至5方自動上料攪拌車散熱器
How to use the radiator of 4-5 square automatic feeding mixer truck
1.備用散熱器的有效環境應保持通風幹燥。
1. The effective environment of the standby radiator shall be ventilated and dry.
2.軟化處理後，建議使用軟水和硬水，以避免散熱器內部堵塞和水垢的產生。
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，為了防止結冰引起的核心結冰，如果4至5方自動上料攪拌車長時間停放或間接停止，應使用水箱蓋和排水開關排出所有水。
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.水位計應每3個月清洗一次或根據實際情況清洗，應取出部件並用溫水和無腐蝕性清洗劑清洗。
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.當散熱器完全排空並重新注滿時，首先應將發動機缸體的排水開關扭開，當有水流出時，再將其關閉以避免起泡。
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.在日常使用中應隨時檢查水位，冷卻後停止水。加水時，慢慢打開水箱蓋，操作人員的身體應盡可能遠離供水口，以防止高壓蒸汽油噴出而導致灼傷。
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.散熱器不應與任何酸，堿或其他腐蝕性物質接觸。
7. The radiator shall not contact with any acid, alkali or other corrosive substances.
8.在使用防凍液時，為避免散熱器的腐蝕，請務必使用常規廠家生產的長期防鏽防凍液，並符合國家標準。
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.根據實際情況，用戶應徹底清潔散熱器一至三個月。清潔時，沿反向進氣口側用清水衝洗。
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.在安裝散熱器時，請勿損壞散熱片（切片）和保險杠散熱片，以確保散熱和密封。
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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