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TOTAL PRODUCTIVE MAINTENANCE

7.4.3 RENOVATIVE MAINTENANCE

Renovative maintenance is performed when the equipment can be taken off line for
an extended period of time. This scheduled outage or shutdown of the equipment
should be scheduled with production to prevent a bottleneck around the equipment.
This type of maintenance usually refers to major modification, redesigns, or installation
of some technological advancements. The cost effectiveness of this type of
maintenance is shown in Figure 7.2. In the beginning, it’s cheaper to operate the
equipment and replace parts as they become defective. However, when the cost to
overhaul becomes greater than the cost to replace, then it’s time to schedule a period
of renovative maintenance. After performing this type of extensive maintenance on a
piece of equipment, it’s usually restored to a condition close to new. The breakdown
rate should fall off dramatically, until the next period of renovation is needed.

Cost Of
Replacement
Cost Of Production In RM Cost Of

Overhaul

Cost Of
Operate

Time 1 2 3

Figure 7.2: Cost Effectiveness of Renovative Maintenance

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