What are the steps to be taken care of while doing preventive maintenance for Baggage Scanner Systems ?

replacing or servicing system at its rated life

In preventive maintanance doing replacing or servicing system at its rated life. so the cateloge must specifies the service time and life of the essential parts. so replace the system components when the system runs at the specified time

http://www.sds.l-3com.com/applications/checked-baggage.htm

http://www.rapiscansystems.com/

You can try to search in the websites mentioned above which are the global leading suppliers of this Baggage Scanner Systems.

Unfortunately this is a type of maintenance I have no expertise in but would recommend that you seek guidance from the system manufacturer.  Good luck.

thanks for your kind invitation, but i am not specialist at this field