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Maintenance Planning Questions
and Answers
Q: Create a single cycle plan, how do
you proceed?
A: Planned maintenance>maintenance
plans>create>single cycle plan, transaction IP41. The single cycle plan
is used in the situation where you need to perform a singular frequency
of maintenance. The plan contains data and functions similar to that of
a normal strategy based plan but does not have a relationship with a strategy
or maintenance packages.
Q: In a strategy based plan what
scheduling parameter settings are available?
A: Early, late shift factors, early
late +/- tolerances, cycle modification factor, factory calendar, call
horizon, scheduling period, unit of scheduling period, requires confirmation
indicator, scheduling indicators for time, time key date and factory calendar.
Where a plan is created with relationship to a maintenance strategy the
scheduling parameters in the strategy are copied as a default to the maintenance
plan, the scheduling period, unit and requires confirmations are not active
in the strategy. When creating the plan from scratch you can also specify
a start date to prompt maintenance scheduling.
Q: What are the available standard maintenance
plan categories, what is the purpose of the category?
A: The available maintenance plan
categories are: MM for services which places a call object of a service
entry sheet and PM for plant maintenance which calls a maintenance order,
a notification can also be a call object. The category links the plan with
the call object that is to be produced.
Q: How must the scheduling parameters
in the maintenance plan be configured so that the call date falls exactly
on the planned date?
A: The call horizon must be set to
100%. The call horizon dictates when the order should be called.
Q: To start scheduling a strategy
maintenance plan what are the options?
A: Start @ recent or current
date and start in cycle at last known maintenance package – start in cycle
utilises an offset of number of days in starting the plan in cycle of maintenance
package. When the maintenance plan is scheduled the option to restart
is made available.
Q: Describe the process
for attaching multiple notifications to one work order?
A: Plant maintenance>planned
maintenance>maintenance planning>maintenance plans>change. Enter selection
criteria as required and execute, select the required notifications and
press the button create order.
Q: What function (transaction)
schedules and generates orders for maintenance plans?
A: Deadline monitoring offers this
facility, transaction IP30 can be used to schedule and generate orders
for maintenance plans, this function can also be set as a automatic batch
job.
Q: Define the structure and options
of a maintenance strategy?
A: The strategy comprises of a header
and contains the following scheduling parameters, early, late shift factors,
early late +/- tolerances, cycle modification factor, factory calendar,
call horizon, scheduling indicators for time, time key date and factory
calendar. The strategy also has a relationship with maintenance packages;
the maintenance packages are the cycle of frequencies at which maintenance
inspections are required. The package options: cycle length; unit of cycle
length; offset, prelim and follow up buffers and also in hierarchy that
dictates when each is called.
Q: What is the purpose of the preliminary
and subsequent buffers in the maintenance packages of a maintenance strategy?
A: The preliminary buffer is the
lead float in a number of days that affects the order start date in the
order. The subsequent buffer acts as the follow up float days again a number
of days that you specify which will affect the finish date in the order.
The calculated order start and finish date is a default value that can
be overwritten by the ordering scheduling value, this is dependant on the
setting for order dates in customising.
Q: In the scheduling of
maintenance plans what options are available for the manipulation of calls
placed on the scheduled call board (tab)?
A: The following options are
available: release call (immediate release to create order) fix call (change
date of call) skip call (cancel call) restart (restart scheduling of plan)
manual call (place a manual cal)
Q: How can you lock a maintenance
plan for scheduling?
A: Within the transaction IP02
change>maintenance plan, the function to make the make the plan inactive.
Q: What is the function
of a cycle set?
A: The cycle set is used as
a copy reference for cycles when creating a multiple counter plan. The
cycles can be changed in the maintenance plan, without the cycle set being
affected.
Q: What is the difference
between a cycle set and a strategy?
A: The difference between a
strategy and cycle set is that a strategy always has cycles of the same
dimension, whereas a cycle set can have cycles of different dimensions.
Q: What transaction is used
for creating a maintenance plan for services?
A: Plant maintenance>planned
maintenance>maintenance planning>maintenance plans>create>create>for contract
item. Also customer service>service agreements>environment>sales &
distribution>service products for maintenance.
*-- Tips by Bill
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