Dongguan hydraulic press start not sharply when started at full speed, should be in the condition of system unloading point move prime mover switch several times to no-load running in a row, the purpose is to as far as possible to rule out clean, the air in the pipe after no-load running 1 ~ 2 min without abnormal phenomena gradually loading, should be no abnormal vibration and noise in the process of loading and leak, or stop the machine immediately to check analysis, troubleshooting.
Check whether the installation of hydraulic pump of dongguan hydraulic press is accurate and reliable, whether the screws are tightened, and whether the coupling installation meets the requirements; Whether the pump body is filled with oil; Whether the steering of the pump is consistent with the inlet and outlet of oil; Whether the relief valve of hydraulic system is adjusted to the specified pressure value.
If the horizontal dongguan hydraulic press pump for a long time should not release the oil in the pump, and then fill with oil with a lower acid value, exposed processing surface coated with anti-rust oil, each oil mouth with screw plug seal, in order to prevent dongguan hydraulic press dirt into.
Common sense manipulation error. Such as three phase reverse, the oil tank is not enough, the pressure regulator did not raise the pressure. Power is not enough. Generally on the old machine, either pump loss, or the electrical aging. You put the palm of the hand in the oil pipe to see, if the machine pressure is very large, pump no problem, on the contrary there is a problem; Electrical aging this relatively rare, really aging sound, because it can not take up so much power;
If there is no sign of oil leakage on the surface of the machine, it is the oil seal of the piston is damaged. The hydraulic valve of the guide oil press is broken. The valve is blocked, and the internal spring is stuck by impurities and cannot be reset. The hydraulic gauge is broken. It's possible.
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