Planned maintenance

Everything you need to know about planned maintenance

What is planned maintenance (PPM Maintenance)?

A lot of industries use the term planned maintenance interchangeably with preventive maintenance. But while the aim of planned maintenance is to carry out repairs with the goal of keeping an asset from failing, it is a cover-all term that refers to any maintenance activity that is planned, documented, and scheduled.

Because of this, PPM maintenance can be planned and scheduled (like getting your car serviced every six months), or planned and unscheduled (like planning to replace a lightbulb whenever it stops working).

Scheduled maintenance

Scheduled maintenance activities are based on triggers, including time, usage, event, and condition.

Advantages of scheduled maintenance

Know what to expect
Planning maintenance in advance gives you a chance to properly allocate resources to the job, so that you have the time, personnel, and tools you need from the get-go.
Manage your calendar
Some scheduled maintenance can be planned years in advance (for example, replacing the filters on an AC unit every summer), while others require shorter lead times. Planning maintenance in advance lets you look ahead in your calendar and see what’s coming up, rather than always being in a position of reacting to breakdowns.
Get work done faster
When maintenance is planned, it gives the maintenance team a chance to track down all the parts they need and shut down the asset safely before starting work. And since everything is planned in advance, maintenance technicians have everything they need on-hand, making the repair much quicker and more efficient than if the asset had gone down unexpectedly.

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Unscheduled maintenance

Also known as run-to-failure maintenance, planned but unscheduled maintenance occurs in situations where the maintenance plan for an asset is to wait for it to breakdown.

This approach is typically reserved for assets that have little or no impact on production. Light bulbs are a good example here—it’s wasteful to preemptively replace a lightbulb, and most organizations keep extras on hand, so most people simply wait for them to blow before replacing.

The reason this is still considered planned maintenance (rather than reactive) is that these assets are still tracked and a decision has been made to let them wear out before they’re replaced, rather than being caught off guard by the repair.

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