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4.8.6.4. Check of the reducing valve

At repair of the oil pump to check the reducing valve. To pay attention to the surfaces of the valve and case as possible pollution or deposits on the interfaced surfaces can lead to jamming. On the interfaced surface of the valve there should not be забоин also agnails which can lead to reduction of pressure in system.

To check elasticity of a spring of the reducing valve, comparing the obtained data with provided on the drawing.