Bad maintenance practices tend to sneak into the way things get done. Here are three more to guard against:
Bad Practice #47 — Preventive Maintenance (PM) Tasks Not Set Up With Discovery in Mind.
By definition, PM is about preventing failures. Certain types of tasks support that goal without data collection. An example is breaker mechanism lubrication. But while you’re lubricating, you should know how to visually inspect the mechanism to discover unusual wear or other signs of trouble.
Bad Practice #48 — Predictive Maintenance That Leaves Out Valuable Discovery Methods.
For example, your current PdM program for large motors includes temperature and insulation resistance testing but does not include automatic continuous motor monitoring and trending.
Bad Practice #49 — Maintenance Practices Not Updated to Look for Problems That Have Actually Happened at Your Site.
For example, there’s been a history of E-stop tampering on a few machines. The PM tasks for those machines need to include E-stop inspection, with specific verification steps. If tampering is especially bad, set up surveillance cameras as a deterrent.
