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The Maintenance Excellence Institute

How OCE Impacts Your Bottom Line: Part II – Page 1

Measuring Overall Craft Effectiveness (OCE)

Part II: How OCE Impacts Your Bottom Line

By Ralph W. “Pete” Peters, President The Maintenance Excellence Institute Division of Ralph W. Peters and PEOPLE Inc. 6809 Foxfire Place, Suite 100 Raleigh, North Carolina 27615 919-270-1173 www.Pride-in-Maintenance.com

Craft Labor-A Terrible Thing to Waste: Improving Overall Craft Effectiveness is very key question we need to answer. Getting maximum value from craft labor resources and higher craft productivity requires measurement and knowing where you are now. Maintenance operations that continue to operate in a reactive, run-to-failure, fire fighting mode and disregard implementation of today’s best practices will continue to waste their most valuable asset and very costly resource - craft time. Typically, due to no fault of the craft work force, surveys and baseline measurements consistently show that only about 30 to 40 percent of an eight-hour day is devoted to actual, hands-on wrench time. It is very important to understand; “How your valuable craft time can slip away” as illustrated in Figure 2. Best practices such as effective maintenance planning/scheduling, preventive/predictive maintenance, more effective storerooms and parts

support time”.

all contribute to Measuring and

proactive, planned maintenance and more productive hands on, “wrench improving overall craft effectiveness (OCE) must be one of many

components to continuous reliability improvement process and total asset discussed in Part I, OCE includes three key elements very closely related to the OEE Factor.

management. As we the three elements of

Overall Craft Effectiveness (OCE)

  • 1.

    Craft Utilization or Pure Wrench Time (CU)

  • 2.

    Craft Performance (CP)

  • 3.

    Craft Service Quality (CSQ)

Overall Equipment Effectiveness (OEE) Asset Availability/Utilization (A) Asset Performance (P) Quality of Asset’s Output (Q)

Elements of OEE and OCE Effectiveness Efficiency Quality

Craft Utilization

Craft Utilization (CU): The first element of the OCE Factor is Craft Utilization or pure wrench time. This element of OCE relates to measuring how effective we are in planning and scheduling craft resources so that these assets are doing value-added, productive work (wrench time). Effective planning/scheduling within a proactive maintenance process is key to increased wrench time and craft utilization. It’s having an effective storeroom with the right part, at the right place in time to do scheduled work with minimal non-productive time on the part of the crafts person or crew assigned to the job. Figure 2 shows; “How your valuable craft time can just slip away”.

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