The Mean Time To Repair (MTTR) is one of any manager’s favourite metrics. As the name implies, it represents the mean time required to repair a malfunction. And — as you surely understand — it’s a very strong indicator of how the maintenance department and technical operations management function. So, if your company’s MTTR is too high, what can be done to reduce it? That’s what we’re here for, so let’s go.
How to calculate the MTTR
We’ve previously explained what MTTR is and how to calculate it. What we left out was how you can reduce MTTR within your company. The first step is to recall the MTTR formula:
This expression clearly shows that the MTTR derives from only two variables — the total corrective maintenance time (i.e. the total time spent repairing equipment) and the number of repairs. To reduce MTTR, you will have to evaluate and try to reduce both factors.
How to reduce the total corrective maintenance time?
The total maintenance time starts from the minute the malfunction is detected and ends the minute it is resolved. Sometimes this is the first problem: too much time is spent until the malfunction is reported to the competent technician. If this is your case, implementing a more efficient facility management system can be a solution. If it’s not possible for the technician to be physically present at the company, look for a partner that can provide remote assistance. Also, consider preparing your employees to do quick checks.
On the other hand, when the repair time is too high, this may be an indicator that certain equipment should be replaced. If we combine the cost of repairing and losses/loss of productivity incurred during downtime, it’s very likely that replacing equipment will be more economical.
How to reduce the number of repair actions?
Once again, the secret may lie within your team. If an operator notices that a particular machine or equipment is underperforming, a service technician should be called immediately. Acting quickly can avert total breakdown and prevent a complete shutdown of production. In case of emergency, the technical operations manager should be available and give a prompt response, reviewing the protocol with the team.
Almost all equipment requires periodic revisions. In the case of heavy-duty machines, actually replacing some mechanical components regularly, often annually, is highly recommended. But you already knew that. What you may not know yet is that you can automate these notifications, ensure that all maintenance is up to date and therefore reduce the number of repair actions with a proper CMMS.
In short, reducing the MTTR involves three factors — accelerating malfunction reporting, centralizing and organizing information, and investing in equipment maintenance. Review these three items successfully and we’re pretty sure you’ll be able to reduce your company’s mean time to repair by 2019.