Predictive maintenance: Predictive maintenance makes use of human sense or other sensitive instruments such as audio gauges, vibration analyser, amplitude meter , pressure , temperature and resistance strain gauges etc. to predict trouble before the equipment fails. Unusual sounds coming out of a rotating equipment predict a trouble , an electric cable excessively hot at one point predict a trouble. Simple hand touch can point out many unusual conditions and thus predict a trouble. In predictive maintenance , equipment conditions are measure periodically or on a continuous basis and this enables maintenance men to take a timely action such as equipment adjustment , repair or overhaul. Predictive maintenance extends the service life of an equipment without fear of failure.
senses adopted for predictive maintenance technique (Human senses) :
1. Ear :eg. Unusual sound coming out of rotating equipment.
2. Eye :eg. Excessive vibration of equipment or dislocation of moving part.
3. Touch :eg. Excessive temperature of equipment.
4. Smell :eg. Unusual smoke coming out of equipment. sensitive instruments adopted for predictive maintenance technique:
1. Audio gauges :eg. Unusual sound coming out of rotating equipment.
2. Vibration analysor: eg. Excessive vibration of equipment
3. Amplitude meter:eg. Excessive temperature of equipment.
4. Pressure, temperature and resistance strain gauges: eg. Excessive temperature of equipment.