Efficient Plant May 2019 - 25

feature | lubrication strategies
+ Sample upstream of filters and downstream of lubricated bearings.
+ Before taking actual samples, use the
10X flush rule, i.e., flush a volume that
is 10 times larger than what you'll collect before taking the sample volume.
+ Always pre-flush sampling equipment
(pump and hose).
+ Only use virgin clean sample bottles.
+ Always sample at the same spot, using
the same procedure and equipment.
+ Forward sample and completed sample
details to lab within 24 hr.
S Infrared thermography (I/R), another important PdM tool, has advanced significantly
and now offers sophisticated diagnostic capability in handheld units at a fraction of the
cost of earlier generation systems. I/R cameras are able to depict potential problems in
image form by displaying object temperatures
in various colors, which, based on appropriate

training, can lead to quick interpretation and
problem diagnosis. I/R can quickly determine
whether a bearing is receiving too much or
too little lubricant or indicate reservoir-fluid
levels where no level indicators are in use. I/R
is also used by laboratories in a FTIR (Fourier
Transform Infrared) spectroscopy test to
determine the lubricant contamination and
additive.
In all of the PdM methods and tools
described here, the recurring theme is
discipline and consistency. This must be
factored in when choosing and purchasing
a PdM tool by acquiring assistance in set up,
operation, and training for the tool's use.
3. Act on your findings. A true travesty
occurs when all efforts and resources invested
to accurately predict an impending failure
are wasted because no up-front commitment had been made in the planning and
scheduling process to combat the failure and

its associated, accelerated downtime costs.
When an impending failure is evident,
create a work order to perform a planned
repair as soon as possible, linking the PdM
work order as the requestor. This will result
in a report that depicts the success of the
PdM program. To ensure the work order
is generated, issued, and followed up on,
develop a standard operating procedure that
clearly directs the maintenance department
to take action on it.
Once the pilot is deemed successful, the
program can be rolled out into other areas
using the same PdM method or tool. Then,
if needed, the next PdM tool or method can
then be piloted in the same manner.
Remember, though, that tools solve problems when implemented and used correctly.
Going from reactive to proactive is a big
change but, with a little common sense and
knowledge, it's not impossible. EP

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Efficient Plant May 2019

Table of Contents for the Digital Edition of Efficient Plant May 2019