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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SCHEDULING OF MAINTENANCE PLANS

ImageIn SAP Plant Maintenance, when a Maintenance Plan is created, the cycle is assigned and defines the interval for the call dates and thus for the creation of orders.

ImageIn addition, different scheduling parameters can be assigned in order to adapt the call dates to various requirements.

– The Cycle Start determines the date from which call dates are to be calculated.

– The Shift Factor enables you to react to early or late confirmation.  They are stated as a    percentage related to the cycle.

Call Dates are calculated on the basis of scheduling parameters.  For each call date, an order is created.

ImageThe changes in the schedules will vary depending on what you declare on the Early/Late Shift Factors and in the Tolerance Level of your Maintenance Plan.

For Example:

A Maintenance Plan shows the shift of a planned date triggered by a late confirmation.  The following parameters are taken as a basis:

Cycle start:  01/03/98                            – Cycle duration:  3 months

Planned dates:  01/06/98, 01/09/98    – Tolerance for late confirmation:  10%

Shift factor:  50%                                   – Confirmation:  15/06/98

ImageThe tolerance always refers to the shortest cycle, so that in this case the tolerance is 9 days (10% of 90 days).  The shift factor always refers to the total number of late days.  As the confirmation date is outside the tolerance of 9 days, the shift factor of 50% of 14 days = 7 days applies.  The newly derived planned date is therefore the 08/09/98 (instead of the 01/09/98).

 

 

SINGLE CYCLE MAINTENANCE PLAN

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■Business process: The same job must be performed at regular intervals
Examples:
• Yearly inspection of fire extinguishers
• Acceptance test every 2 years
• Six yearly inspection of vessels as per pressure vessel regulations.

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■ The processing screen for Single Cycle maintenance plans will be much simpler.
■ It is now possible to enter a maintenance plan and the corresponding maintenance item in one screen.
■ You can also enter a task list number on this screen and assign it to the maintenance item.
■ The following functions can be performed directly via pushbuttons:
         • Create task list
         • Select task list
         • Display task list with direct call up of operation overview
         • Details of the task (for example execution factor)
■ The Table-Control-Technique enables flexible display of the maintenance item list.

In addition, you have scheduling information directly in the maintenance item list.

ImageA Single Cycle Maintenance Plan can have several Maintenance Items.
The maintenance item contains data on the following areas:
  • Planning data:

Maintenance planning plant

Maintenance planner group

Order type

Maintenance activity type

Responsible work center

Business area

  •  Reference object
  •  Intervals

Cycle

Offset

Cycle text

Task list

 

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