Glossary of Terms
Practical maintenance terms, CMMS language, reliability abbreviations, and plant maintenance definitions in one place.
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399 terms shown
Single Point of Failure
A single point of failure is one component, asset, or function whose failure can stop the entire required system because no effective alternative exists.
Single-Minute Exchange of Die
Single-Minute Exchange of Die, or SMED, is a structured method for reducing equipment setup and changeover time.
Site Acceptance Test
A Site Acceptance Test verifies that installed equipment or systems operate correctly in the actual plant environment after delivery and installation.
Six Big Losses
The Six Big Losses are common categories of production loss affecting equipment availability, performance, and quality.
Soft Foot
Soft foot is a condition where one or more machine feet do not sit evenly on the base, causing frame distortion when hold-down bolts are tightened.
Spare Parts Interchangeability
Spare parts interchangeability is the verified ability of one part to replace another without unacceptable effect on fit, function, safety, quality, or reliability.
Spare Parts Inventory
Spare parts inventory is the controlled stock of replacement components and consumables kept available to support equipment maintenance and reduce avoidable downtime.
Spare Parts Lead Time
Spare parts lead time is the elapsed time between initiating replenishment and receiving a part ready for maintenance use.
Spare Parts Obsolescence
Spare parts obsolescence occurs when a replacement part is no longer manufactured, supported, compatible, or economically practical to obtain.
Spare Parts Service Level
Spare parts service level measures how reliably maintenance inventory can meet valid parts demand when required.
Standard Maintenance Job
A standard maintenance job is a repeatable type of work with an approved scope, method, labor estimate, parts, tools, and acceptance criteria.
Static Equipment
Static equipment is process or facility equipment without a primary rotating mechanism, such as vessels, tanks, piping, structures, and heat exchangers.
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