Why does the electric pallet truck leak oil?

Electric pallet truck is a storage and logistics equipment powered by battery and powered by motor. It consists of battery, motor, hydraulic pump, oil cylinder, piston and other components. Among them, the oil cylinder is the part that converts hydraulic energy into mechanical energy, which is very important for electric transport vehicles. Oil leakage is a common problem of electric pallet truck, which brings troubles to many forklift operators. However, the pallet truck manufacturer told us not to worry too much about the oil leakage of the electric pallet truck, but to check it in time and find out the cause, and then it can be solved smoothly.

The oil leakage of the electric pallet truck may be caused by the wear between the valve rod and valve body. If the distribution valve is always used with high intensity, or the oil used in it is not clean, it will aggravate the wear between the valve rod and valve body. This may damage the mating sealing surface and cause fluid leakage. If the wear is not serious, the valve rod can be polished and chrome-plated to prevent oil leakage again. If the wear is serious, we need to replace the parts. The reason for oil leakage of the electric pallet truck may also be the poor sealing at the connection between the oil pipe and the oil cylinder pump station. At this time, it is necessary to tighten the nut at the connection with a wrench. The pallet truck manufacturer reminds everyone that you must not use excessive force during maintenance, otherwise the problem of wire slipping will easily occur.

The oil leakage of the electric pallet truck may also be related to the aging of the safety valve spring. After the safety valve spring is aged, the hydraulic oil will force the steel ball to leave the valve position, and flow into the oil overflow channel under the pressure lower than the specified pressure of the system, resulting in oil leakage. To solve this problem, it is necessary to replace the spring and adjust the coil spring pressure to the specified 14Mpa. If the valve rod of the multi-way reversing valve cannot be reset, the groove is connected with the oil passage, which will cause oil leakage. There are two possible reasons for this problem. One is that the return spring of the valve rod is deformed or damaged. At this time, only the spring needs to be replaced. The second is that the valve body and valve rod are not clean, the resistance increases, and the valve rod is difficult to reset. The pallet truck manufacturer recommends cleaning the multi-way reversing valve to keep its interior clean.

Once the problem of oil leakage occurs to the electric pallet truck, it will affect the normal operation and work efficiency. When encountering this kind of problem, forklift operators need to calm down, check in time, find out the cause and solve the problem. The pallet truck manufacturer recommends that drivers increase their knowledge of the electric pallet truck so that they can quickly repair problems.