益流阀有故障如溢流阀阀芯卡死在打开位置，则大量油液从溢流阀溢流回油箱。

Yi faulty valve <br>as a relief valve stuck in the open position of the valve body, a large amount of oil from the spill overflow back. It will make reducing the flow into the cylinder and less speed.

There is a problem with the benefit valve<br>If the overflow valve core is stuck in the open position, a large amount of fluid overflows from the overflow valve back to the tank. This will reduce the flow of the incoming cylinders and the speed is not.

The flow valve is faulty<br>If the overflow valve core is stuck in the open position, a large amount of oil overflows from the overflow valve and flows back to the oil tank. It will reduce the flow into the cylinder and make it under speed.<br>