Shut Down Maintenance (SDM)

It is the maintenance, which can only be carried out when the equipment is out of service. Whenever the machine is not in use or idle for the reasons other than breakdown, like shortage of materials, huge decoupling inventory piled up, non availability of man power, absenteeism, holiday, etc. it is taken up for preventive maintenance/overhauling.

Thus the interest of this policy is not to disturb the production for the want of maintenance and is done in the leisure time of the machine. Perhaps, this method is suitable for the production system where the machines are not run continuously. If the machines have to be run continuously, the planning of this method will be difficult and disturbs the regular schedules of the maintenance. In such cases it is better to attach this activity to the breakdown maintenance group.