1. Before the frame-type hydraulic press supplies oil, the oil tank must be carefully cleaned. After the oil passes through the filter screen on the 100 mesh, it is introduced into the oil tank. Generally, the hydraulic oil should be removed and replaced from August to December and maintained regularly every month. If mildew is found, it should be removed and replaced first,frame type hydraulic pressThe reasonable capacity of the oil tank is about 520 liters. Note: Be sure to clean the oil tank strictly before giving oil. It is forbidden to use pure cotton yarn or pure cotton cloth for cleaning. It is strongly recommended to use linen cloth or flour dough.

2. The working oil of the frame hydraulic press is recommended to use 46# anti-wear hydraulic oil, and the operating environment temperature is 0-45 ℃.
3. When the hydraulic machine supplies oil, pay attention to the oil level of the hydraulic oil at the middle and upper end of the liquid level transmitter, but not less than or beyond the scope of the liquid level transmitter. During the whole process of adjustment, attention should be paid to the change of aspect ratio of the hydraulic oil level of the gantry hydraulic machine. Once it is less than the oil level gauge, gear oil must be filled after shutdown.