October - Library - Central Queensland University

The functional analysis structure is much like the structure in the CMMS. There are levels of indenture that are developed based
on how facility equipment is constructed to perform the facilities overall function. The functional hierarchy is developed using the
equipment hierarchy as its basis. It starts at the top level and works its way down to individual maintainable items within the facility
such as pumps, gearboxes, piping, and fans. It might look something like what we see in figure 2.
Figure 2: Equipment Hierachy
We next describe the functions of the various pieces of equipment. The loss of these functions is typically what an operator sees
and might be the basis for the initial comments in a work order generated for a failure.
Figure 3: Item Functions and Functional Failures
Failure Modes or How I Learned to Troubleshoot in Advance
The next step in the functional analysis is the development of the failure modes or causes associated with the loss of desire d
function. The failure modes are simply the failed equipment parts that cause the loss of equipment function.
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