1.The filling action of the machine is divided into automatic and manual. When the machine adopts manual, only need to use the bottle mouth to push the contact tongue, then start to suck the material. Do not hold the contact tongue when filling. When automatic is used, the container is first placed when the discharge port is unloaded, and the filling switch is automatically started as soon as the switch is turned on, and the container is replaced in time. 2. When it is found that the metering is unstable during filling, it should be checked that the feed check valve may be caught by debris, resulting in a tight seal and affecting the filling amount. 3. Leakage of the lower part of the cylinder indicates that the piston seal is worn and the seal is required to be replaced.