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Preventive maintenance and shop quality · Lesson 1 of 4

Preventive maintenance and shop quality: principles and terminology

The terms used for maintenance, why a folder needs care, how checks and records catch a bad part, and the OSHA rules that treat maintenance as servicing.

You will be able to: Define reactive, preventive and predictive maintenance, name where a folder wears and what AFS's order system records around a quality check, and state the safety boundaries that apply to maintenance work.

12 min · 12 slides · 10 questions

All lessons in this module
Slide 1 of 12

Two halves of one job

Preventive maintenance keeps machines and measuring tools in a known condition, so they do not drift, mark the metal or fail.

Shop quality is the checks, records and problem-solving that catch a bad part and stop it happening again. A machine in known condition makes parts in known condition.

Sources

Videos for this lesson

What this video shows: A one-hour webinar by a compliance assistance specialist from the Erie OSHA office: what machine guarding is, hazard recognition, solutions and resources.

Video: OSHA: Machine Guarding Webinar by PennWest Clarion Small Business Development Center, on YouTube. Chosen from the video's published description.

Glossary

Reactive maintenance
Repairing equipment only after it fails; PNNL calls it the "run it till it breaks" mode.
Preventive maintenance
Actions on a time- or machine-run-based schedule that detect, prevent or reduce degradation.
Predictive maintenance
Maintenance based on measurements that detect the onset of degradation, so work is done on actual condition.
Reliability centered maintenance
A process to determine what maintenance an asset needs in its operating context.
Wear part
A part such as a bushing, open gear or linkage that wears in use and is replaced before it fails.
Servicing and maintenance
In 29 CFR 1910.147, work such as lubrication, cleaning, unjamming, adjustments and tool changes.