11-9 Example analysis of transitional condition maintenance.

Answer: According to the idea of transitional condition maintenance, a factory first selected representative equipment in each professional branch for condition maintenance. For example, the boiler branch has a large workload and high maintenance costs for air compressor equipment, so it conducts a pilot work of condition maintenance on air compressor equipment. The details are as follows:

First, the production and technical department reports and approves the cancellation of the planned maintenance items of the equipment, formulates the maintenance and maintenance items of the air compressor, and determines whether or when to implement each maintenance and maintenance item according to the operating status of the equipment.

Second, the maintenance department at the operating level is responsible for the implementation and recording of air compressor maintenance and the analysis report of air compressor operation. The content includes: oil replenishment, oil change quantity and time, three filter replacement and cleaning, water discharge, water drainage, cooler cleaning, cylinder refueling, operation time, exhaust pressure, temperature, operation current, voltage, operation fault record, equipment failure rate, etc.

The power generation department at the operating level compiles and is responsible for the operation data record of the air compressor. The content includes online monitoring data and offline monitoring data. The main online monitoring parameters include the start-up time, starting current, full load power, vibration value of each bearing, temperature of each bearing, lubricating oil temperature, oil pressure, etc. Offline monitoring parameters mainly refer to targeted test tests such as bearing vibration value, oil composition analysis, environmental parameter value, etc., in addition to equipment operation initial value, design parameter value, historical fault information, historical defect information, historical maintenance information, etc.

Third, fill in the equipment status report based on the equipment status and make equipment maintenance suggestions, and submit them to the professional level for the formulation and correction of maintenance strategies.

Sheet 11-1 is a comparison of the statistical data of a single air compressor in the factory under planned maintenance and condition maintenance conditions.

Table 11-1   Statistical data of a single air compressor under planned maintenance and condition-based maintenance

Data collection period: 2006 Jan. to Dec.

From the above examples, we can see that the implementation of condition maintenance for equipment reduces the maintenance workload, equipment failure rate, maintenance costs, and improves equipment availability. From the steps of transitional condition maintenance, we can see that the implementation of condition maintenance places higher demands on the ability of staff in various departments to summarize, analyze and deal with problems. Therefore, improving the basic management system of equipment, conducting relevant personnel training, carrying out basic technical work, and building a complete technical platform are the tasks to be completed from transitional condition maintenance to comprehensive condition maintenance.