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What are the symptoms of diesel vehicle hand pump pressure relief?

1 Answers

CameronRose

07/30/25 12:28am

Diesel vehicle hand pump pressure relief can make the vehicle difficult to start. Here are the reasons for hand pump pressure relief: 1. Material issues. 2. Severe oil leakage problems: inspect along the fuel line. 3. Overflow valve issues: adjust the valve to see if it works; if there's no change after adjustment, the valve might be stuck and require disassembly and cleaning with kerosene. 4. Fuel line blockage: due to oil contamination or foreign objects entering. 5. Insufficient hydraulic oil. 6. Prolonged operation under high temperatures, leading to elevated hydraulic oil temperature and oil deterioration. 7. Summer arrival: check if winter-grade oil is still being used; if so, switch to summer-grade oil and store the replaced oil for winter use. 8. Issues with the pump or motor.

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