What is the function of hydraulic transmission oil?How to choose the appropriate hydraulic transmission oil?What should we pay attention to when replacing hydraulic transmission oil?Here's your answer.

Pay attention to changing the hydraulic transmission oil of 4WD rough terrain forklift

What is the function of hydraulic transmission oil?

changing the hydraulic transmission oil of 4WD
What kind of Hydraulic Drive does the rough terrain forklift need to replace? How to select?

Torque Converter/Transmission Oil (Hydraulic Drive Oil)

The use of liquid pressure plays the role of energy transmission, anti-wear, system lubrication, anti-corrosion, rust prevention and cooling in the transmission system. For hydraulic transmission oil, first of all, it should meet the requirements of the transmission device of 4WD off-road forklift for liquid viscosity under working temperature and starting temperature. Since the viscosity change of lubricating oil is directly related to hydraulic action, transmission efficiency and transmission accuracy, it is also required that the viscosity temperature performance and shear stability of oil should meet various requirements put forward by different uses.

Proper viscosity and good viscosity temperature performance ensure the normal operation of the hydraulic transmission device within the temperature range of - 40 ~ 170 ℃.

Good wear resistance ensures that hydraulic transmission components of different materials are not easy to be worn under operating conditions.

Good thermal stability and anti-oxidation safety, so as to adapt to long-term recycling under the working conditions of 70 ~ 140 ℃ (or even higher).

Good low-temperature fluidity and low freezing point, so as to adapt to the working conditions of mechanical start-up and stop and winter operation.

Good foam resistance makes the oil foam easily disappearing under the condition of mechanical stirring. In order to avoid reducing the efficiency of the torque converter and causing gear shift failure.

Proper viscosity and good viscosity temperature performance ensure the normal operation of the hydraulic transmission device within the temperature range of - 40 ~ 170 ℃.

Good wear resistance ensures that hydraulic transmission components of different materials are not easy to be worn under operating conditions.

Good thermal stability and anti-oxidation safety, so as to adapt to long-term recycling under the working conditions of 70 ~ 140 ℃ (or even higher).

Good low-temperature fluidity and low freezing point, so as to adapt to the working conditions of mechanical start-up and stop and winter operation.

Good foam resistance makes the oil foam easily disappearing under the condition of mechanical stirring. In order to avoid reducing the efficiency of the torque converter and causing gear shift failure.

How to choose the appropriate hydraulic transmission oil?

(GM) dexron Ⅱ D Ⅱ e Ⅲ, (Ford) mercon, mercon V, (Allison) C-3, C-4, C-5, (China) 8# has good low temperature starting performance and viscosity performance, which is suitable for winter use (- 20 ° - 10 °), (Allison) C-3, C-4, C-5, (China) 6#, which has better friction resistance and is suitable for summer use (10 ° - 40 °).

The lack of hydraulic transmission oil of 4WD off-road forklift will make it difficult for the gearbox to walk at high temperature, which will lead to the damage of the gearbox. Your 4WD off-road forklift must replace the transmission filter element and hydraulic transmission oil regularly.

It is recommended that the first replacement should take about one month after purchasing the car or the working time is 200 hours. In the future, the replacement time can be 500 hours or 3 months.

There is an oil level check plug on the transmission. First add oil until the oil flows out, start the engine for a few minutes, and then check the oil level. Add oil until it flows out.

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