1. If there is a blanking phenomenon during use, first loosen the oil drain screw on the pump body, and then open the pump body vertically and turn it down a few times, then tighten the oil drain screw to continue using.
2. When using, do not add eccentric load or overload, so as to avoid the danger of electric jack damage. When there is load, it is forbidden to remove the quick connector to avoid accidents and damage to the machine.
3. This machine uses oil as the medium. It is necessary to do the maintenance work of the oil and the machine to avoid fouling or oil leakage and affect the use effect.
4. New or long-term electro-hydraulic jacks, because there is more air in the cylinder, when the piston is used, the piston rod may show a slight jump phenomenon, and the ultra-high pressure and large-tonnage electric jack can be reciprocated 2-3 times without load. To exclude air from the cavity. Long-term idle electro-hydraulic jacks, because the seals do not work for a long time, causing the seals to harden, thus affecting the service life of the ultra-high pressure large-tonnage electric jacks. Therefore, when the electro-hydraulic jacks are not in use, the ultra-high-pressure large-tonnage electric jacks should be used every month. No-load reciprocating motion 2-3 times.
5. The high pressure oil pipe is tested at 105Mpa (1050Kgf/cm2) when it leaves the factory. However, because the hose is prone to aging, the user needs to check frequently, usually for six months, and frequently used for three months. When testing, use 87.5Mpa (875Kgf/cm2) for pressure test. If there is blasting, bulging, leakage, etc., it cannot be used.
6. The technical specifications should be strictly observed during operation. Users should check and maintain regularly according to the use.