Bearer companies base themselves on growing their lifetime and on decreasing their reparations costs to improve their own profitability.


The maintenance represents the pallet of operations whereby the equipments and the installations are kept so they could work on eighths parameters. Maintenance proceedings made regularly reduce the losses caused by malfunctions or labour accidents.

The principal operations of maintenance regarding the mechanic equipments are the replacement of used pieces, the completion of work fluids (lubricants, for example) and the adjustment of the components and the removal of the attrition factors (water, dust, acids etc.).

Specific definitions:

maintenance – concept that integrated the notions “maintenance, upkeep, repair”;

reliability – the measure whereby an equipment will work without any malfunctions during the mission, according the preset terms of usage;

technological reliability – the measure whereby an equipment can reach, during the mission, the technological performances;

repairs – the total activities whereby an equipment recovers its normal parameters of good function.




What do we know about the equipments’ maintenance?

1. the rehabilitation maintenance – the equipments work till they stop accidentally because the depreciation or some malfunctions appear. The repair means to replace the disabled sub-assembly or even to the whole equipment if it is required.

2. the planned maintenance – the equipments are stopped, through a planned operation, when they have gathered too many hours on function, and submitted to some technical revisions (RT), current repairs (RC1, RC2) and to major repairs (RK). In this system it doesn’t matter the depreciation degree present already and just the total number of function hours for any equipments.

3. the preventive maintenance – the equipments work in conditions of safety until a certain degree of depreciation or a malfunction appear. In this system, the equipments will be stopped a couple of weeks earlier than was settle and the repair will be done just where is needed. This system offer the possibility to find out in time if something goes wrong with the equipment or just with a component from it. Planning the process of stopping the installations it is possible and, meanwhile, the intervention team is prepared, new components are bought so that the time dedicated to the repair process to be as short as possible.

4. the proactive maintenance – using the right apparatuses it can be supervised, continuous or temporary, the good state of function of any part of the installation or all the dynamic equipments. This way we can discover some inchoate defects, which will be fixed in a well-determined period of time, so that the production process doesn’t have to be stopped. It can be done some major savings, reducing the manual labour and the big number of the damaged components. More, when you can anticipate the repair you will know exactly the components that you will need to buy. If the results from the monitoring process regarding an equipment will be kept in a data base, in time they will serve as an important review information for the history of an equipment that can be used as a documentation paper in periodical technical inspection for prevent any new damages. This way in viewing the problems that can occur, called proactive, will lead, for short and long time, to some major savings.