How to distinguish whether the lifetime of the packing machines is due?

How to distinguish whether the lifetime of packing machines is due? Details are as follows.
First, the packing efficiency reduces. Taking the old powder packing machine needed to be changed as an example, it cannot be used normally without the technician or operator. And its packing speed reduces, and this makes the uptime efficiency of the machine falls to 97percent.Secondly, the repair and maintenance increases gradually. Besides, if the function of critical components of the packing machine degenerates, it also shows the lifetime of this machine is close to due.
Therefore, it is critical to pay attention to the lifetime of packing machines, because it not only affects the production efficiency but also relates to the final economic benefits.