How does the hydraulic system of an electric pallet truck work?

The hydraulic system of the electric pallet truck is an important part of the equipment, and its steering system and working devices are driven by the hydraulic system. Therefore, the quality of the hydraulic system will directly affect its performance. In fact, the causes of hydraulic system failures are not as complicated as we imagined, and most of the problems are caused by the execution structure. However, it is not easy to find out the specific fault location and cause, because there are many reasons for the fault, and specific problems need to be analyzed in detail.

Another thing I have to mention is that the hydraulic transmission failure of the electric pallet truck is very hidden, which also brings a lot of trouble to the maintenance personnel. In the industry, there are many ways to check for faults, and what we care about is the reliability of the diagnosis results. The common fault diagnosis methods of forklift hydraulic system are as follows.

The failure rate of the electric pallet truck hydraulic system can generally be divided into three stages: the initial stage, the middle stage of operation and the late stage of operation.

In the early stage of the electric pallet truck, when the new equipment or the overhauled equipment system first started to operate normally, the failure rate was relatively high. This is mainly because the design level of the equipment may not be perfect. There are still deficiencies in the selection of components or the quality is not good enough. If the components and pipelines are not cleaned thoroughly or assembled properly, there will be vibration, leakage, unstable system pressure, unstable actuator action, excessive temperature rise and other failure phenomena. Don't worry if you encounter this situation, as long as you take the correct solution, the failure rate will be reduced.

The failure rate of electric pallet trucks in the middle of operation is very low, but even if there is a failure, most of the reasons are caused by hydraulic oil pollution or deterioration. Because the dirt in the hydraulic oil will block the orifice or the throttle gap of the component, thereby changing the working performance of the system and causing the misoperation of the component.

The electric pallet truck enters the overhaul period in the later stage of operation. The wear of hydraulic components is very serious, and the seals are worn or aged, resulting in a gradual increase in failure rate, mostly manifested as increased leakage, reduced system efficiency, and slow movement. At this time, it is necessary to contact the electric pallet truck manufacturer in time to solve the problem before the fault expands.