Breakdown maintenance is a type of maintenance that is performed when a piece of equipment or machinery has broken down and is no longer functioning. It is typically used to repair or replace components that have failed or are no longer working correctly. This type of maintenance is often done on an emergency basis and is typically done in order to restore the equipment or machinery to its original working condition. Breakdown maintenance is usually done by qualified technicians who have the necessary knowledge and experience to identify the problem and fix it quickly and efficiently. This type of maintenance is often done in order to prevent further damage or to prevent the equipment from breaking down again in the future. Breakdown maintenance is an important part of any maintenance program and can help to ensure that the equipment or machinery is kept in good working order.