Selection of Predictive Maintenance Techniques

DOE-STD-1052-93

3.4.4.2

Predictive maintenance should be limited to components and systems that

are significantly important to the safe and reliable operation of the plant.

The program should collect, trend, and analyze data and initiate planned

actions for degrading equipment. The effectiveness of the program is

dependent on the accuracy of equipment degradation rate and time to failure

assessment.

3.4.4.3

Management commitment, control, and overview are essential for the

success of a predictive maintenance program. This section contains a

summary of key principles and program elements for a predictive

maintenance program. The example program is provided to assist plant

personnel in the development and implementation of a predictive

maintenance program. Although the key elements of the program are

applicable to all plants, some of the details may need to be modified to

reflect individual plant conditions and needs.

3.4.4.4

Selection of Predictive Maintenance Techniques

a) Many different predictive maintenance techniques are used throughout

the industry. The following is a description of some predictive

maintenance techniques that may be used:

Vibration Monitoring and Diagnostics - a technique used for the

monitoring and analysis of plant rotating equipment - This technique

is used to analyze displacement, velocity, and acceleration

parameters to predict the need to correct problems such as bad

bearings, poor alignments, or improper balance.

Lubricating Oil Analysis, Ferrography, and Grease Analysis -

techniques used for the early detection of lubricant breakdown and

abnormal wear

Lubricating oil analysis monitors the actual condition of the oil

itself. Parameters measured include viscosity, moisture,

"additive" package and the presence of other contaminants.

Ferrography is a technique used to analyze oil for metal wear

products and other particulate. Trending and analyzing the

amount and type of wear particles in a machine's lubrication

system may pinpoint where degradation is occurring.