FEATURES OF A MAINTENANCE ORDER

ImageIn SAP Plant Maintenance, the features of a Maintenance Orders are the following:

  • Flexible order processing

Ideally, the maintenance order must be capable of being opened with a minimum data entry (for example, in the case of a malfunction).  On the other hand, there are some business processes in Maintenance, such as revisions, transfers or new constructions, for which the maintenance order should provide a wide range of functionality – working with external companies, network configuration, permit processes, cost statements, material reservations and others.

  •  Object Reference:

The Maintenance order either refers to one specific object or to a group of any number of objects which can be displayed in an object list in the maintenance order.

  • Period of Validity

An individual order is valid for a specific piece of maintenance work only.  In the case of standing order, however, you do not create a new order every time a new piece of work needs to be done.  The standing order is valid for a certain period of time.  It is created to cover minor repairs, and all times and materials are posted to it.

  •  Execution

Maintenance orders are performed by internal company employees or are outsourced to external companies.

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CREATION OF MAINTENANCE ORDERS

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In SAP Plant Maintenance, A Maintenance Order can be created by the following:

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  • Scenario 1 : A maintenance order is automatically created in a maintenance item by the maintenance plan
  • Scenario2 :  The maintenance notification is entered at some remote location.  A maintenance order is created for the notification by the person responsible
  • Scenario 3 :  In the maintenance order, several notifications are combined into one or more objects
  • Scenario 4 :  The Maintenance order is created directly = Malfunction-based Maintenance/Emergencies
  • Scenario 5 :  An activity report for an existing maintenance order is entered subsequently as a technical confirmation.

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MAINTENANCE STRATEGY & TASK LIST

ImageThe Maintenance Strategy consist of several maintenance packages. It is the scheduling rule for preventive maintenance.

ImageThe Scheduling Indicator determines the type of scheduling :

Examples:

– time-based

  •     time-based with key date
  •     time-based as per factory calendar
  •     performance-based

A Maintenance Strategy can be assigned with Maintenance Packages.  The packages of a strategy can have different cycle units (for example month, year).  However, they must always have the same dimension (for example time).

ImageMaintenance Packages define how often certain operations are to be performed.As Part of the Maintenance Strategy,  Maintenance packages can be assigned to the operations of a task list.

The Parameters of a Maintenance Package are the following:

– Package number

   – Description

   – Cycle length

   – Unit of measurement

    – Hierarchy

When two packages fall due at the same time, the hierarchy determines which package    is carried out.

    – Offset

The offset determines the first due date of a package.

– Preliminary/follow-up buffer

The preliminary and/or follow-up buffer defines the tolerance of the envisaged start and end dates of a package.

Maintenance Task Lists can be created with preventive maintenance in mind.  The following steps are required to prepare tasks lists for use in Strategy Maintenance Plans. Where a Maintenance Strategy is defined in the Task List Header.

The different Operations of the task list are then assigned to Maintenance Packages to define the frequency at which the operations need to be carried out.