Is the vacuum pump repaired afterwards or preventive? Most people think preventive maintenance is good. Then, compared with post maintenance, what is better about preventive maintenance.

There are two modes of preventive maintenance. One is regular preventive maintenance, which is shutdown maintenance arranged according to the consumption cycle of vacuum equipment and facilities; The other is condition based maintenance, which is to monitor the status of facilities, find hidden faults or potential faults, timely arrange timely maintenance, and eliminate the faults in the bud.

Preventive maintenance refers to the preventive maintenance carried out by taking advantage of the off-season, holiday, weekend and other opportunities of production and manufacturing.

1. It can reduce and prevent unplanned shutdown

Nowadays, most companies arrange production and manufacturing according to orders, and customers have very strict standards for delivery date. In lean production management companies, punctuality and zero inventory have become typical characteristics. If the vacuum equipment is shut down, it will affect a certain production process, and this order will be affected, which will do great harm to the company's efficiency and reputation. It is of great significance to use preventive maintenance to prevent a large number of unplanned shutdown and ensure on-time delivery.

2. It can reduce the chain damage of facilities and prolong the service life of facilities

Facility damage often starts from a part or a part, which affects other parts or parts step by step, resulting in major problems. Therefore, the qualitative change and damage of a part of the vacuum equipment will not only lead to the failure of the vacuum equipment system, but also be transmitted to the facilities in the application link. Therefore, preventive maintenance can reduce or prevent minor damage, or eliminate small hidden dangers in time, so as to prevent the impact from expanding, resulting in more serious fault damage.

3. It can reduce the maintenance cost

Of course, improper "preventive maintenance" will not only reduce costs, but also increase costs. We call it maintenance redundancy or maintenance surplus. This means that proper preventive maintenance can reduce maintenance costs. Generally speaking, the efficiency of planned work is three to four times that of unplanned work. In view of its planning, preventive maintenance can study the repair scheme in advance, prepare drawings, tools, slings and other auxiliary facilities and materials, and prepare spare parts. On the contrary, if it is post maintenance, people diagnose the cause in the rush of sudden shutdown and then look for tools, spare parts and materials. The reduction of time efficiency is very obvious. Of course, the maintenance cost increases. Coupled with the chain damage that may be caused by post maintenance, the replacement loss will also increase and increase the maintenance cost.

4. It can reduce the risk of safety accidents

Preventive maintenance can eliminate local, minor or initial defects of facilities, which can separately reduce the risk of safety accidents. Some serious failures of vacuum equipment could have been prevented, but in view of the lack of opportunities for preventive maintenance, the risk of failure is becoming higher and higher, resulting in relatively large consequences. At the slightest, the nose is locked and the bearing is bent, at the worst, the machine is destroyed and people die.

5. Be able to prevent and reduce batch quality defects or scrapping

In the process of failure, many facilities will lead to a large number of quality defects or scrapping. Unqualified oil content of vacuum equipment will lead to scrapping of food and electronic products... There are many such examples. Therefore, preventive maintenance can reduce or prevent batch quality deterioration or scrapping during failure to some extent, and reduce the economic loss caused by failure scrapping.

6. Be able to make the work more proactive, planned and predictable

Opportunistic maintenance in preventive maintenance can make the factory's production plan, working time arrangement and resource allocation more reasonable, more planned and more active. The night shift maintenance, weekend maintenance and month end maintenance implemented by some factories are the opportunity maintenance carried out by using the gap between the completion of production and manufacturing tasks.

7. Reduce the risk of environmental damage

Like reducing safety injury, preventive maintenance can reasonably reduce the risk of environmental damage. The leakage of facilities, especially those involving toxic gases and liquids, will cause environmental damage; The noise of facilities will also pollute the environment. The water treatment and air purification facilities within the enterprise are directly related to the impact on the discharge environment.

8. It is conducive to energy saving and consumption reduction

Poor operation of facilities often increases friction and energy consumption. Preventive maintenance can ensure the smooth and stable operation of facilities and facilities, reasonably reduce energy consumption and maintain the energy-saving effect of facilities.