On-site Diagnosis of Fault Judgment of Hydraulic Transmission System of Electrohydraulic Truck

Before understanding the on-site diagnosis of the fault diagnosis of the hydraulic transmission system of the electro-hydraulic pallet truck, we need to learn from Jiangsu electric forklift manufacturers some conventional methods that are used in most hydraulic system fault diagnosis, which are divided into experience method, test method, computer method and replacement. Law. These four methods have their own advantages and disadvantages. As for which method to use, we still need to analyze specific problems.

Let me talk about the rule of thumb first. This method can only be done when the staff has certain working experience. With years of practical experience, they can judge the failure of the hydraulic transmission system of the electro-hydraulic pallet truck. But if it is only based on empirical judgment, it is easy to lead to blind operation.

Let's talk about the test method again. This method is to use a fault detector to test the fault system to determine the cause of the fault. This is very similar to the computer method, which uses expert system software to diagnose and analyze the hydraulic system of the electrohydraulic truck, but this method is expensive and very complicated to operate. Looking at the replacement method again, this method is to determine the fault location by replacing components or analogy, but this method is blind.

Therefore, the above four methods mentioned by Jiangsu electric forklift manufacturers are not very suitable, but we can organically combine the above methods, such as combining the empirical method with the replacement method, the specific steps are as follows:

First understand the fault phenomenon, understand how the electro-hydraulic pallet truck fails, or check whether the equipment has adjusted the relevant components, and observe the fault phenomenon; then analyze the structural working principle, understand the structure and working principle characteristics of each component, and according to the fault performance Item by item analysis. Generally, we observe whether the oil level is normal, whether the oil quality and system vibration amplitude are abnormal, etc. Another thing is to listen to the sound of the system, touch hydraulic components such as pumps, valves, and pipelines, and smell whether the hydraulic oil has deteriorated.

In general, according to the above process of Jiangsu electric forklift manufacturer, the failure of the hydraulic system of the electric hydraulic pallet truck can be effectively judged.