In the construction site, it's very unsettling when the pile driver breaks down during operation. Shandong Hengwang Group, with over ten years of manufacturing experience, has summarized the detection methods for troubleshooting the lift of the hydraulic cylinder in the Baoding photovoltaic walk-behind spiral pile driver, allowing for quick and effective identification of the fault location to get the equipment back up and running. Generally, when there are no external leaks, rapid ascent and descent of the oil cylinder indicate a leakage in the load oil circuit. The most intuitive way to check the sealing of the oil cylinder is to conduct a plugging test (safety must be ensured).

1. When performing the arm descent blockage test, first set the arm and bucket rod at a 90-degree angle, insert the oil port and oil tube into the bottom cavity of the arm oil cylinder, then start the engine and open the bucket rod to lift it off the ground, measuring the descent speed.

2. When conducting the bucket rod cylinder descent blockage test, first open the bucket rod so it touches the ground, block the oil port and tube in the bucket rod chamber, then start the engine, lift the arm to raise the bucket rod off the ground for measurement. The bucket cylinder descent test method is similar.

Additionally, masters are reminded that other reasons for the rapid lifting and lowering of the hydraulic cylinder in the Baoding PV step screw pile driver include:

1. Internal leakage of the cylinder.

2. Leakage inside the control valve hole, valve stem.

3. Malfunctioning overload safety valve;

4. The valve stem is not in the middle position;

5. The PPC valve is not in the middle position.

Baoding photovoltaic hand-held spiral pile driver hydraulic cylinder maintenance process:

1. If it's the PPC valve, check whether it is normal when the hydraulic lock is in the locked position;

2. Conduct a hydraulic cylinder sealing oil port test to check if there is any fault with the oil cylinder, and if there is, repair the oil cylinder;

3. Replace the overload relief valve, check if it is a fault of the overload relief valve;

4. Check if the valve stem is stuck, clean it and then check again, otherwise, the main control valve needs to be repaired.

The above are the Baoding photovoltaic hand-held spiral pile driver hydraulic cylinder fault maintenance methods organized and released by Shandong Hengwang Group for your reference. We also welcome Baoding to provide some good maintenance methods to share with everyone using the Baoding photovoltaic hand-held spiral pile driver, screw pile driver, and everyone in the pile driving industry.