Manutenção Preventiva

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Preventive 
Maintenance
 
Preventative Maintenance
• What is a Preventive 
Maintenance?
– Preventive Maintenance is 
planned maintenance that is 
designed to improve 
Equipment life and avoid 
breakdowns on the plant.
 
 SAP AG 1999
Preventive Maintenance: Basics
 Basics
 Task list
 Single cycle plan
 Strategy plan
 Maintenance plan scheduling
 
 SAP AG 1999
Time-based Performance-based Condition-based
Preventive
maintenance
Temperature
 Thickness
PressurePressure
1010
2020
3030 4040 5050
6060
7070
8080
Pressure
2000
Types of Preventive Maintenance
 
Preventive Maintenance
• An Equipment can require maintenance 
activities to be performed based upon either 
time or a certain condition being met.
External visual inspection
1 
month4Wks
Internal visual inspection
12 Wks
Check gear teeth for wear
52wks
 
 SAP AG 2001
Preventive Maintenance: Phases and Roles
Maintenance
technician
Maintenance
order
Process maintenance orders4
Maintenance
planner
Maintenance
planner
Maintenance
supervisor
Maintenance
plannerTask list
Maintenance
plan
Schedule
Technical
completion
Create maintenance plans
Schedule maintenance plans
Technically complete
maintenance orders5
2
3
1 Create task lists for different
objects
Phase Contents Roles
 
 SAP AG 1999
Preventive Maintenance: Task List
 Basics
 Task list
 Single cycle plan
 Strategy plan
 Maintenance plan scheduling
 
 SAP AG 1999
What?
Why?
For preventive maintenance
 (maintenance and inspection)
For routine maintenance
 (planned repairs)
For preventive maintenance
 (maintenance and inspection)
For routine maintenance
 (planned repairs)
Operations
Maintenance work centers
Material components
Production resources/tools
Maintenance packages
Task List
 
 SAP AG 1999
Task list header
Operation 10
Operation 20
Operation 30
Planner group
Maintenance
strategy
3 months
3 months6 months
6 months12 months
12 months
Work center
Production
 resources/tools
Components
Maintenance Task Lists: Structure
 
Maintenance Strategy
• What is a Maintenance 
strategy?
– A Maintenance Strategy 
defines the frequency and 
scheduling data for Planned 
Maintenance activities. 
 
Maintenance Strategy
4 Week 12 Weeks 24 Weeks
Time
Strategy
Package 
definition
2000
Scheduling parameters
What is a Maintenance Package?
 
Maintenance Package
3 
months12 
Weeks
Package number
Description
Cycle length
Unit of 
measurement
Hierarchy
Offset
•Maintenance packages define the frequency at which specific 
operations are executed. You can assign maintenance packages to 
the operations in a task list. 
•Maintenance packages are part of a maintenance strategy.
 
12 Wks
12 Wks
24 Wks
12 Wks
Strategy
12 wks
12 wks
24 Wks
12 wks
Strategy
Same hierarchy levels
Different hierarchy levels
12 Wks
24 Wks
10
10
12 Wks
24 Wks
20
10 X
Maintenance Package Hierarchy
 
 SAP AG 1999
 Basics
 Task list
 Single cycle plan
 Strategy plan
 Maintenance plan scheduling
Preventive Maintenance: Single Cycle Plan
 
 SAP AG 1999
I must perform the
same inspections at
regular intervals.
1999
1997
Inspection of
"Portable fire extinguishers"
 every 2 years
94 96
98
2000
CHECKED
Single Cycle Plan: Business Process
 
Single Cycle Plan
• Simple and quick way to create a preventive 
or inspection plan.
• Includes only one cycle or frequency.
• Can be either time or performance based.
• All operations on the Task list will be 
performed.
• More than one Maintenance item can be 
included.
 What is a Maintenance Item -- ?
 
Maintenance Item
• Every Maintenance plan will have at least one Maintenance 
item.
• A Maintenance item can only belong to one maintenance plan.
• The Maintenance item contains the following information:
– Description (Becomes the Maintenance order description)
– Technical object
– Task list
– Planning Data
• Order or notification type
• Planner group
• Priority
• Main work center
• Maintenance activity type
– Object list
 
Maintenance Item (Cont.)
• A Maintenance item can contain more than one Technical 
object.
• The Technical object can be an Equipment, Functional 
location or Assembly.
• The Maintenance item description becomes the description of 
the Maintenance notification or order.
• For Maintenance items that are part of a Strategy based plan 
a Maintenance strategy must be included within the item.
• The Task list for this Maintenance item will also need to be 
linked to the same Maintenance strategy.
 
Single Cycle Plan Steps
• Three steps in creating a single cycle plan.
Task List
Task List Group
PRTs
Components
Maintenance Item
Technical Object
Task List
Planning Data Maintenance Plan
Maintenance Item
Scheduling Param.
Cycle (Frequency)
 
 SAP AG 2001
Scheduling Data and Maintenance Item
Responsibilities/
Planning data
Reference
object
Task list
(optional)
3 months
Interval (cycle)
Maintenance item
Maintenance plan
Scheduling data
Maintenance item
 
 SAP AG 2001
Using a Task List to Include an Operation List
Maintenance plan
Scheduling data
Maintenance item
0010 Switch off
0020 Safety check
0030 External visual check
0040 Change seal 
0050 Exchange H9 casing 
0060 Check Z7 wire
Task list
 
Single Cycle Scheduling
Cycle Start
15.06.2004
15.03.2004
Cycle
12 Weeks
Maintenance plan
Scheduling data
Maintenance item
Planned Date
15.09.2004
1
 
 SAP AG 1999
Preventive Maintenance: Strategy Plan
 Basics
 Task list
 Single cycle plan
 Strategy plan
 Maintenance plan scheduling
 
 SAP AG 1999
Which parts must be
maintained at which
intervals?
External visual inspection
1 month
1 month
Internal visual inspection
3 months
3 months
Check gear teeth for wear
1 year1 year
Strategy Plan: Business Process
 
Maintenance Plan Steps
Task List
Task List Group
Maint. Packages
Maint. Strategy
Maintenance Item
Maint. Strategy
Technical Object
Task List
Maintenance Plan
Maint. Strategy
Maintenance Item
Scheduling Param.
Strategy
Maintenance 
Packages
The Task List checks 
the Package to 
ensure the Strategy 
still exists.
The Item checks the 
Task List to make 
ensure that the 
same Strategy is 
used
The Plan checks the 
Item to make ensure 
that the same Strategy 
is used
 
 SAP AG 1999
Task List and Maintenance Strategy
6 months
6 months
3 months
3 months
3 months
3 months
6 months
3 months
Strategy
0010 Switch off
0020 Safety check
0030 External visual check
0040 Change seal
0050 Exchange H9 casing 
0060 Check Z7 wire
Task list
 
 SAP AG 1999
Creating a Time-Based Strategy Plan
3 months
3 months
6 months
3 months
Strategy
0010 Switch off
0020 Safety check
0030 External visual check
0040 Change seal
0050 Exchange H9 casing 
0060 Check Z7 wire
Task list
3 months
3 months6 months
6 months
Maintenance plan
Scheduling data
Maintenance item
 
 SAP AG 1999
 Preventive Maintenance: Maintenance Plan Scheduling
 Basics
 Task list
 Single cycle plan
 Strategy plan
 Maintenance plan scheduling
 
 SAP AG 2001
ManualManual
callcall
NewNew
startstart
Start inStart in
currentcurrent
cyclecycle
ScheduleSchedule
Last actual date
Last maintenance
package
Last actual date
Next
planned date
Next 
maintenance
package
Cycle start
*
* Only for strategy plan
Schedule Maintenance Plans
 
 SAP AG 2001
Cycle Start and Planned Date
Planned date
Order exactly
on planned date?
Cycle
3 months
Cycle start
14.04. 2000
15.01.2000
Order 901760
Maintenance plan
Scheduling data
Maintenance item
1
 
 SAP AG 1999
Maintenance item report, sorted by equipment (no.)
1998 1999
Maintenance Scheduling Overview
... or as a list
With display variants
With general list viewer
... as a graphic
With maintenance plan simulation
With/without details
	Preventive Maintenance
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