Maintenance Procedures for Unique or Custom Equipment

 

In a previous post, equipment with established maintenance procedures was discussed. These procedures may have been recommended by the manufacturer, from established industry resources, or even from individual experience (as determined by the feedback loop discussed). However, not every piece of equipment has established maintenance procedures. Perhaps it is a custom machine used as part of your unique manufacturing process. Maybe it is a collection of equipment assembled together for a unique purpose. Custom equipment or equipment utilized for novel purposes may not have established maintenance procedures, but that doesn’t mean it doesn’t require routine, preventive and / or predictive maintenance. What do you do?

There are tools and methods that can be used to work through these challenges. One method might include a Failure Mode and Effects Analysis. This tool has key people who are knowledgeable about the equipment and how it is used work through a methodical series of questions to determine the likely points of failure, their potential causes, and possible solutions to prevent those failures. This tool can be used on virtually any type of equipment but it is particularly useful for equipment that is custom-made, inherently complex, and/or unique in some way.

The key to performing an effective FMEA is to have a facilitator that can lead the team through the process to ask the right probing questions, collect the relevant solutions, and then compile them into an effective set of maintenance procedures. To learn more, start here: https://michaud-engineering.com/maintenance-consulting

Information is the key to an effective maintenance program

 

If you have been around the maintenance business for any amount of time, you know that many types of equipment have well established maintenance procedures and intervals. Many times the manufacturer will provide this with with the equipment and for typical equipment there often industry standards or standard practices that are used. In all cases, these should be a starting point, but as they say YMMV (your mileage may vary) – meaning it is important to monitor your equipment specific to your use conditions and modify your maintenance processes and frequencies accordingly. For instance, if the recommended filter change interval for a packaged rooftop unit is 2x per year, but your building is in a particularly dusty / dirty location, you may need to increase this frequency to 3x or 4x per year, or perhaps change the filter media that you use to include a pre-filter to screen out larger particulate matter before it fouls your main filters. This is just one example.

In a previous post, the question was posed – why isn’t your maintenance program working as effectively as possible? One of the answers might be related to the “feedback loop”. As important as it is to have skilled technicians performing good maintenance work, their feedback from their work and interaction with the equipment is critical in making good decisions about the equipment for the future. If the aforementioned packaged rooftop unit had nearly blinded over filters each time they were changed on the 2x per year frequency, but the technician never reported this, or if the report never made it to the appropriate decision maker, then the lifespan of this equipment may be significantly shortened. Depending on the criticality of that equipment, that could lead to all sorts of other issues, such as poor performance, reliability problems, increased operational costs and shortened life leading to higher capital costs.

We live in an information age and we have never been better equipped with the myriad tools at our disposal to convey critical information. Are you getting the information you need to make the best decisions?