Make sure to use the appropriate heat conduction oil, such as the model 320 or 350, depending on the specific oil level required. The pot body should be filled with oil up to half of the oil level. 

Before operating the machine, always check the hot oil level to ensure it has reached the specified oil level. Additionally, open the exhaust valve before starting the machine. 

To discharge the material, turn on the gate and close the filling valve. Tilt the sandwich pot and use the hand wheel to tilt the pot body and discharge the contents safely.