In general, if there’s no external leakage, a rapid settlement of the hydraulic cylinder often indicates an internal leak in the load oil circuit. The most straightforward way to assess the sealing performance of a hydraulic cylinder is through a sealing test (and always prioritize safety during the process).
For instance, when conducting a boom settlement and sealing test, first position the boom and bucket at a 90-degree angle. Seal the oil port and oil lines in the bottom cavity of the boom hydraulic cylinder, then start the engine and raise the bucket to hover slightly above the ground to measure the settlement rate.
When testing the settlement and sealing of the bucket rod hydraulic cylinder, begin by extending the bucket rod so that the bucket touches the ground. Block the oil port and oil lines in the rod cavity, start the engine, lift the boom, and ensure the bucket is raised off the ground for measurement. The method for testing the bucket cylinder settlement is quite similar.
The rapid settlement of the excavator's hydraulic cylinder could stem from several causes:
1. Internal leaks within the hydraulic cylinder itself.
2. Internal leaks at the valve holes or valve stems of the control valve.
3. A malfunctioning overload safety valve.
4. The valve stem not being centered.
To address these issues, Henan Kexing Hydraulic Cylinders has spent years exploring new technologies, phasing out outdated practices, and ensuring top-notch quality. If you're looking for custom hydraulic cylinder solutions, reach out to Henan Kexing Hydraulic Cylinder Manufacturer.
This content was originally published by Henan Kexing Hydraulic Co., Ltd. Please credit the source when sharing.
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In my experience, maintaining hydraulic systems requires constant vigilance. I’ve seen countless scenarios where even small leaks can lead to significant downtime and costly repairs. It’s always better to proactively address these issues before they escalate. If you’re dealing with hydraulic components in any capacity, whether it’s maintenance, repair, or customization, don’t hesitate to consult experts like Henan Kexing. They’ve been a reliable partner for many in the industry, providing tailored solutions and unparalleled support.
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