How to check the hydraulic oil tank of an electric forklift?


Published by NEWTON February 29,2024

Due to the significant impact of hydraulic oil tanks on the entire hydraulic system of electric forklift, the requirements for oil tanks are generally very strict, and the inspection items usually include the following points. Next, the electric forklift manufacturer will tell you about it.

electric forklift

Firstly, the quality of the hydraulic oil of the electric forklift should be checked, and it is required that it should not be contaminated, there should be no excessive bubbles, and there should be no deterioration or oxidation. Using empirical inspection method, that is, using methods such as "looking, smelling, touching, shaking, and comparing" to determine the degree of oil pollution and decide whether to replace it. Secondly, the quantity of hydraulic oil should be checked, and it is required to keep it between the H and L liquid levels frequently. Generally, by pulling out the oil level gauge of the hydraulic oil tank, the height of the oil level can be understood. If the oil quantity is insufficient, hydraulic oil of the same grade should be added, and other types of hydraulic oil are not allowed to be added. Thirdly, the electric forklift manufacturer tells everyone to check whether the oil suction and return filters, as well as the filter screen at the oil filling port, are damaged, and if the mesh is blocked, the filter screen should be cleaned in a timely manner. If there is any damage, it should be repaired or replaced.

Due to long-term use, there may be various pollutants in the fuel tank of electric forklift. If not removed in a timely manner, it will inevitably have adverse consequences for the normal operation of the hydraulic system. Therefore, the fuel tank should be cleaned in a timely manner, and the specific steps are as follows. Firstly, drain all the oil in the fuel tank and place it in a clean container to prevent contamination. After settling for a certain period of time, some parts can still be used. Secondly, remove the suction pipe, return pipe, air filter, etc., and seal the holes below the top. Thirdly, after injecting sodium hydroxide or sodium sulfate solution for degreasing for 24 hours, carefully clean with a cleaning tool. After cleaning, drain the cleaning solution and rinse with warm water once. Fourthly, soak in a 20% to 30% hydrochloric acid solution for 30 minutes, then carefully clean with a cleaning tool. After draining the solution, rinse it with warm water once. Fifthly, dry with compressed air, reassemble, and inject new hydraulic oil (or use the precipitated part to clean the oil, and then add enough oil). The electric forklift manufacturer tells everyone that if the above conditions are not met, they can be washed with kerosene 2-3 times and then dried with compressed air.

electric forklift

The above are the inspection items, precautions, and cleaning methods for the hydraulic oil tank of electric forklift. The electric forklift manufacturer recommends that forklift workers study carefully.

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