Preventive maintenance maintains the “healthy” condition of equipment by
performing daily routine actions (normally referred to as daily maintenance), such as:
cleaning, refuelling, checking to prevent deterioration, periodic inspection and
equipment diagnosis to measure deterioration and maintenance and repair to restore
deterioration at an early stage. Because fixed maintenance requires periodic
maintenance before a breakdown occurs, maintenance expense is costly. There are two
types of fixed maintenance: time-based maintenance (TBM) and the overhaul type
maintenance called inspection and repair (IR). Predictive maintenance foresees the life
of an important part by checking and diagnosis and therefore, maintenance costs and
trouble losses are less with this method when compared with others. One method of
predictive maintenance is condition-based maintenance (CBM). This type of
maintenance uses condition diagnosis technology (CDT) to observe the deterioration in
the condition of equipment and then foresee its life span. Therefore, a suitable period
and method for the maintenance can be decided upon. A system to monitor the
condition of equipment online, for example, makes maintenance technology and
manpower more necessary in CBM compared with TBM.
Preventive maintenance maintains the “healthy” condition of equipment by
performing daily routine actions (normally referred to as daily maintenance), such as:
cleaning, refuelling, checking to prevent deterioration, periodic inspection and
equipment diagnosis to measure deterioration and maintenance and repair to restore
deterioration at an early stage. Because fixed maintenance requires periodic
maintenance before a breakdown occurs, maintenance expense is costly. There are two
types of fixed maintenance: time-based maintenance (TBM) and the overhaul type
maintenance called inspection and repair (IR). Predictive maintenance foresees the life
of an important part by checking and diagnosis and therefore, maintenance costs and
trouble losses are less with this method when compared with others. One method of
predictive maintenance is condition-based maintenance (CBM). This type of
maintenance uses condition diagnosis technology (CDT) to observe the deterioration in
the condition of equipment and then foresee its life span. Therefore, a suitable period
and method for the maintenance can be decided upon. A system to monitor the
condition of equipment online, for example, makes maintenance technology and
manpower more necessary in CBM compared with TBM.
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