In the daily operation of oil press,  it is easy to affect machine service life and oil yield due to misoperation. Before using the
hydraulic oil press, you should keep the machine idle for a while and check whether the  functioning sound of gearbox and
machine is normal. Then, prepare all auxiliary devices and containers, check and adjust the tightness of conveyor belt. When
the oil press machine keeps idle, the electric current should be check. If not, stop it and check.

If the oil cake (oil meal, de-oiled cake) is too crispy  and of  a large block, or the oil bubble increases, it indicates the oil seeds
are too wet. In the normal condition, there is little oil residue among the circle line, and the oil meal cake should be flaky. 
One side of the oil cake nearby the pressing shaft  is smooth and the other side has a lot of cracks. These factors are all the
reasons to affect the oil press service life.