Preventive maintenance of equipment

It is known that the operation of the machine and the duration of operation are affected by maintenance, carried out on time and qualitatively, as well as repair. Even in the USSR, the system of PPR (planned preventive maintenance and repair) was introduced. It regulates the scope of the proposed work, the timing of their conduct, as a result of which the causes for which machine malfunctions are possible are eliminated. Thus, planned preventive maintenance prolongs the service life of mechanisms and improves their quality of work.

Preventive maintenance of machinery and construction equipment

The operation of the mechanisms involves the implementation of complex works, which constitute the system of PPR, the purpose of which is to prevent breakdowns due to wear of parts. Special measures ensuring the maintenance of each machine are necessarily planned in advance, and their preparation is carried out.

During the use of machines scheduled preventive maintenance is carried out either on a monthly basis or according to an approved plan. Maintenance performed on a monthly basis is performed during the work shift, at the beginning or at the end. The maintenance carried out according to the plan is carried out in accordance with the requirements of the manufacturer of the mechanism. And also distinguish maintenance, conducted seasonally twice a year, when the machines are prepared for the winter or summer period of operation. During the storage of vehicles or their transportation scheduled preventive maintenance is carried out in accordance with the documentation and requirements for compliance with the rules of operation.

Engineers or crew members can independently perform daily repairs to the machine, which is assigned to them. However, if the scheduled repair is not included in their duties, then the machine is sent for maintenance centrally to the preventive maintenance departments where specialists are engaged in it. Work on daily maintenance of mechanisms is not planned, as they are mandatory. During maintenance of building, road machines, technical diagnosis, cleaning, lubrication, inspection, regulation, refueling are carried out.

Preventive maintenance of electrical equipment

At large industrial enterprises, the current Scheduled preventive maintenance of electrical equipment is carried out by the guild personnel. Only major repairs are the task that skilled workers are engaged in under the guidance of the master. The operational group formed in this way, headed by the shift supervisor, oversees the electrical equipment shops and is responsible for its minor planned repairs. At power stations, the personnel of the electrical shop are engaged in inspection of tunnels, canals and mines. Work is on schedule. Upon examination, the detected defects are recorded in the log, they are eliminated when an opportunity arises.

Types of preventive maintenance

As a system, preventive maintenance of equipment contains such types of maintenance, care and supervision of repair and operation of machinery, as:

• Current preventive maintenance of equipment
• Scheduled inspections and inspections
• Planned repairs, medium and small
• Major scheduled maintenance

The repair cycle refers to the period between two major repairs, which includes several inspections and repairs of smaller ones. A minor repair is called planned preventive maintenance, in which the unit is completely disassembled. The average includes scheduled repairs, during which the mechanism is disassembled in part, individual nodes undergo major repairs. When overhauling, parts and parts that are worn out are replaced, the unit is completely disassembled, the basic parts are repaired and adjusted.

In order to prevent damage, it is necessary to follow the instructions for care and the rules of operation of the equipment.