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Ou Man electronic oil pump keeps ringing. What happened?
1. Insufficient hydraulic oil in the oil tank, air sucked by the oil pump or the oil filter blocked by dirt will all cause the oil pump to be short of oil, resulting in air bubbles discharging and impacting the blades, resulting in noise. The solution is to check the oil quantity to prevent air inhalation and replace it.
2. Because the bearing or blade of the oil pump or motor is damaged and the concentricity deviation of the coupling causes noise, the concentricity should be adjusted or the accessories should be replaced.
3. The directional valve fails to respond, but its function is still there. The valve core is worn, leaks internally, burrs are blocked, and the action is inflexible. The electromagnetic valve will also produce noise due to the failure of insufficient current.
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