1) If there is a runaway phenomenon during use, you can first loosen the oil drain screw on the pump body, drive the vertical head of the pump body downward for a few times, and then tighten the drain screw to continue using.
2) When using, do not add partial load or overload to avoid the danger of jack damage. When there is a load, do not remove the quick connector to avoid accidents and damage to the parts.
3) The hydraulic jack uses oil as the medium, so the oil and equipment must be maintained to avoid blockage or oil leakage, which will affect the use effect.
4) For new or long-placed hydraulic jacks, because there is more air in the hydraulic cylinder, the piston rod may suddenly jump slightly at the beginning of use. The hydraulic jack can be reciprocated 2 to 3 times without load. Eliminate the air in the cavity. The hydraulic jack that has been idle for a long time will harden because the seals are not working for a long time, which affects the service life of the hydraulic jack. Therefore, when the hydraulic jack is not in use, it must be reciprocated 2 to 3 times a month without load.
