What should do if the relief valve of the walking forklift fails?

We always say that safety comes first when operating a walking forklift. Therefore, it is particularly important to protect the components of driver's operation safety, and ensure that these components can operate well. In the hydraulic system of a walking forklift, the relief valve is a part that plays a role in safety protection. It can prevent the system pressure from exceeding the specified value and prevent accidents due to excessive pressure. No matter what the forklift price is, if the relief valve fails, there will be a potential safety hazard. What are the common faults of the relief valve? How to solve these problems? The forklift manufacturer has something to say.

What if the relief valve of the walking forklift has obvious leakage? The causes may be as follows: poor contact between the conical valve or steel ball and the valve seat; The fit clearance between valve core and valve body is too large; The pipe joint is too loose; The paper pad or copper pad on the joint surface is invalid. In case of this problem, first tighten the pipe joint, and then check whether the paper pad or copper pad on the joint surface is damaged. If it is damaged, replace it in time. Next, the forklift manufacturer reminded everyone that no matter what the forklift price is, check whether the contact surfaces are in good condition and whether the fit clearance is too large or too small, and then repair or replace according to the situation.

What if the relief valve of the walking forklift makes obvious noise during operation? There are many possible reasons for this problem: loose nuts; The spring is deformed and cannot be recovered; The valve core fits too tightly; Worn cone valve; Air enters the outlet oil circuit; The flow exceeds the specified value; The relief valve resonates with other valves. In case of this problem, first check whether the nut is tightened. Check whether there is air in the oil circuit. If yes, let the air out. Check whether the spring can work normally. If it does not work well, repair or replace it as the case may be. Then check the conical valve for wear. If the wear is serious, replace it in time. Check whether the flow in the oil circuit exceeds the specified value of the relief valve. Finally, the forklift manufacturer told us that no matter what the forklift price is, if the noise is caused by the resonance between the relief valve and other valves, the rated pressure of the relief valve can be slightly changed to solve the problem.

The above are the common problems and solutions of the relief valve of the walking forklift. The relief valve is an important part to protect the safety of the hydraulic system. Be sure to pay attention to its operation at any time and maintain it regularly. The forklift manufacturer told us that no matter how much the forklift costs, maintaining the safety protection parts is to ensure our own safety.