How to choose the gear oil of the electric forklift?

We know that the lubricants commonly used on internal combustion forklift include engine oil, gear oil, hydraulic transmission oil, hydraulic oil and grease. As a kind of logistics storage equipment that has been widely used in recent years, the electric forklift has not many people who have systematically learned its maintenance knowledge. Lubricants commonly used on electric forklift trucks include gear oil, hydraulic oil and grease. Today, the electric forklift manufacturer will show you how to choose the gear oil of electric forklift.

American API vehicle gear oil classification classifies the gear oil of electric forklift into three categories: ordinary, medium load and heavy load vehicle gear oil, with viscosity grades of 70W, 75W, 80W, 85W and 90, 140, 250. China also adopts this classification method. In these viscosity grades, W represents winter gear oil. When selecting gear oil, we should look at the quality grade and viscosity grade. The quality grade shall be selected according to the gear type and working conditions, and the viscosity grade shall be selected according to the minimum ambient temperature and maximum temperature of the traditional device operation. The electric forklift manufacturer will give a specific description of relevant knowledge.

The minimum working temperature of 70W gear oil for electric forklift is - 40 ° C, the minimum working temperature of 80W gear oil is - 26 ° C, the minimum working temperature of 85W gear oil is - 12 ° C, the minimum working temperature of 90 gear oil is - 10 ° C, and the minimum working temperature of 140 gear oil is 10 ° C. We should choose according to the geographical location and different seasons of our city. When using, it should be noted that on the basis of meeting the viscosity requirements, it is better to select gear oil with low viscosity grade for electric forklift, because high viscosity grade will reduce the transmission efficiency. The gear oil should be replaced regularly, and different brands of gear oil should not be mixed. The electric forklift manufacturer reminded that if it is necessary to replace the gear oil of different brands, the old gear oil of the electric forklift should be replaced after it is completely discharged while it is hot.

The above is the method of selecting gear oil for electric forklift and the precautions during use. We should choose according to the working environment and the specific situation of the electric forklift. The electric forklift manufacturer believes that the correct choice is on the one hand, and the correct use and maintenance are very important. Enterprises and forklift operators should pay more attention to it.