Preventative Maintenance is maintenance that is performed on a piece of machinery on a regular schedule to reduce the likelihood of failing or breakdowns. A routine sequence of preventive maintenance will ensure parts within the machinery are operating as the should be and will give the engineer or technician an opportunity to spot a potential fail, before the breakdown occurs.
Unplanned downtime is avoidable by using a preventative maintenance schedule. The frequency of the schedule is dependant on several factors such as how the equipment is used, how often the equipment is operational, or sensor based with smart machines
If an asset or parts of an asset are known to fail upon a certain number of uses then a maintenance schedule can be designed around the usage of the equipment. For example, if a fan within an Air Conditioning unit is know to after 400 hours, a HVAC engineer can build a plan around the expected time it will take to reach short of that number.
A time-based maintenance plan will schedule maintenance around set dates. A Gym maintenance technician may be required to conduct weekly swimming pool PH and chemical testing. Due to high usage and the health and safety implications a more frequent maintenance schedule is required.
Condition based maintenance schedules are deigned to be proactive and identify parts of an asset likely to fail. This form of maintenance is changing significantly will the introduction of smart sensors and 5G networks. Field Service Engineers are able to read the real time condition of machines allowing them to plan proactively ahead to order new parts of schedule servicing.