Should be checked after every 50 hours of lubrication, oil press machine gear box oil cup above shall not be short of oil, extra virgin screw shaft to adjust the screw bearing adjustment screw hole should be drawn butter filling once dry grinding is strictly prohibited. Each lubrication should prevent intrusion of dust and other impurities, the annual need to check the gearbox oil quality time, if found deterioration, replace all the oil. When the seed oil press was reduced, the cake or the oil is not normal, should be pressing screw shaft is removed, check the pressing screw, cage bars, the cake head, the mouth of the pie wear, worn parts should be replaced. Class after work, the hydraulic oil press should be removed residual cake, wipe clean surface dirt machine grease. After the end of production when stored for a long season, there should be a maintenance and pressing screw, cage bars, the first washable reload oiled cake, dry place.