Four general types of maintenance philosophies can be identified, namely, corrective, preventive, risk-based and condition-based maintenance. Predictive maintenance (PdM) aims to predict faults before they occur so that maintenance can be done at the right time. PdM uses machine sensor data and intelligent technology to alert maintenance staff when equipment is at risk of failure. For example, a sensor can use vibration analysis to alert maintenance staff that equipment is at risk of failure, at which point it will be disconnected, inspected, and repaired accordingly.
Join more than 14,000 maintenance professionals who receive monthly tips on the CMMS, industry news and updates. Preventive maintenance aims to detect and fix problems before they occur. It is usually carried out in the form of periodic inspections, which are usually carried out several times a year. The main benefit of preventive maintenance is that it can eliminate unplanned downtime, since the ideal is to detect problems before they occur.
Condition-based maintenance is sometimes considered a more advanced alternative to preventive maintenance. Rather than inspecting them on a schedule, machines and systems are carefully observed for changes that could indicate an imminent failure. With condition-based maintenance, technicians observe the operation of the system and identify variables that could affect operation, such as temperature, vibration rate, power, the presence or absence of moisture, etc. Another strategy within condition-based maintenance is predictive maintenance.
Predictive maintenance refers to a specific type of condition-based maintenance in which systems are constantly observed through sensor devices. These devices are connected to system components and send constant, real-time data to the software. The software then interprets this data and warns maintenance technicians of the imminent danger. Predictive maintenance is generally considered to be the most advanced and intensive type of maintenance.
This is because there is a lot of data to interpret, and the sensor devices themselves must be maintained and verified regularly. When used correctly, the goal of predictive maintenance is to understand the best time to work on an asset, so that the maintenance frequency is as low as possible and the reliability is as high as possible, and to avoid all unnecessary expenses. However, since I am often asked questions about different types of maintenance, I decided to give a quick overview of the types of maintenance. In addition to being the result of a deliberate execution strategy until failure, corrective maintenance is also the result of unplanned failures that were not prevented by preventive maintenance.
It can quickly get confusing when people talk about preventive maintenance, condition-based maintenance, or predictive maintenance, but they actually have something else in mind than you. However, if you decide to install CBM technology, keep in mind that some companies have reported a reduction of up to 30% in maintenance costs over time when taking this step. An efficient and effective preventive maintenance program will have a combination of all these different types of maintenance. While preventive maintenance is maintenance that has been identified to prevent or mitigate a failure mode.
Default maintenance follows an action plan created by the manufacture of the equipment, rather than a scheduled maintenance established by a maintenance team. As with all types of maintenance, relying solely on preventive maintenance has potential drawbacks. However, I continue to believe that even the most advanced predictive maintenance approaches must be backed by sound principles of reliability and understanding. Unfortunately, books rarely specify this distinction, leading to the mixing of oranges and apples under the same general term of “maintenance tasks”, which is not precise enough to correctly describe other maintenance concepts within preventive maintenance.
Regardless of the type of maintenance strategies your equipment uses, different areas of a multi-family building should be regularly repaired to avoid costly repairs or extended downtime. But, in the minds of many people, fault maintenance is urgent maintenance, maintenance that must be done right now i. Planning refers to the process of scheduling %26 maintenance planning, so maintenance planning consists of preparing maintenance work so that it is ready for execution. When people talk about preventive maintenance (or preventive maintenance), they usually refer to what is best described as time-based maintenance (TBM).
It's what you do when you're lazy in your personal life or “want to optimize maintenance in your professional life”. . .
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