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There is a built-in low-voltage protection system that automatically shuts down the internal oil pressure after a certain period of time if the voltage drops below a safe level. This feature helps prevent damage to the system during unstable power conditions. If you encounter this issue, follow these steps for troubleshooting:
1. Low oil temperature may be the cause. Check the temperature control valve to ensure it is functioning properly and allowing the oil to reach the correct operating temperature.
2. Poor oil return could be due to a faulty oil stop valve. Inspect the valve for any blockages, leaks, or mechanical issues that might be restricting oil flow.
3. A restricted air intake can also trigger the shutdown. Make sure the relief valve is fully open and working as intended. If it's not opening properly, it may need cleaning or replacement.
4. If the internal oil pressure fails to build up before loading, check whether the minimum pressure valve is closed correctly at startup. Also, inspect the valve plate seal ring for wear or damage, as a faulty seal can prevent proper pressure buildup.
By addressing these potential issues step by step, you can identify and resolve the root cause of the low-voltage protection activation, ensuring the system operates safely and efficiently. Regular maintenance and monitoring of these components will help prevent future problems and extend the lifespan of the equipment.