1. Firstly, check whether there is any product left in the hopper. Please add it if not.
2, to check whether there is jam filling filling the tank, congestion is divided into two kinds: first, the good filling machine in the last, placed for a long time without cleaning, and lead to the inside of the tank product solidified, blocking the tank, the second, the product of sundry, stuck in the tank on the pistons, lead to bad sealing effect, appear the above two cases, please clean up in time, so as not to damage the piston.
3. The above two situations cannot solve the problem, which is that the sealing ring on the piston of the tank has been damaged. Please replace it.