June 9, 2004
Tip: Shift Change Means Filter Change Woes
We are a 24/7 operation and our lubrication crew
works day shift only. Problems arise when duplex
filters are switched over, during the off shift,
due to an increase in differential pressure or for
any other reason deemed necessary while troubleshooting.
The information regarding that change is not always
communicated to the day shift lube mechanic and
the problem element does not get changed out when
We have adopted a standard whereby all duplex filters
are run on the right side. If there is an off-shift
switch to the left; it is easily picked up during
normal rounds. The filter is then replaced and switched
back to the right side. We also use a tagging system,
located at each filter unit, indicating the date
of each filter change for reference and filter life.
(Submitted by David Anderson, Preventive Maintenance
Supervisor, Norske Canada. Thanks David!)
Bits: Why Lubrication Procedures Are Important
From the "Lubrication Excellence
2004 Conference Proceedings"
It makes sense that all lubrication-related tasks
be performed in a consistent manner that conforms
to best practices. It is not enough to provide training
to the technicians responsible for performing the
tasks. To ensure adherence to best practice techniques,
procedures must be developed and documented in a
step-by-step fashion so that any individual who
may be called upon to perform a task can do so without
compromising quality. In an ideal situation, each
procedure would be the responsibility of one person.
However, due to personnel changes, vacations and
other unforeseen circumstances, it is likely that
a single task may be performed by many individuals
with different backgrounds or skill levels. Additionally,
the procedures should be readily available, preferably
in an electronic format which can be attached to
work orders generated by the CMMS system.
Which Oil Is White?
Test your knowledge and prepare for ICML
lubrication and oil analysis certification.
QUESTION: Which of the following
would be considered a white oil? Group III Hydrocracked Mineral Oil or Group IV
& A: Diagnosing Oil Problems With A Laser
"I recently read that a laser pointer
can be useful for identifying suspended solids and
oil/water emulsions in sight glasses. How does this
One of the things you are looking for is reflective
light fragments indicating large solid particles suspended
in the oil. You can observe this by experimenting
with a new turbine oil, or other rather clear oil
in a sample bottle.
With the laser passing horizontally
through the oil, sprinkle table salt into the open
mouth of the bottle. You will see something of a laser
light show as the salt falls through the light beam.
Without the use of the laser, the salt in the oil
is completely invisible to the eye.
Another practice is to observe the
laser light beam on a white piece of paper after it
passes through the oil. Is the laser spot clear and
distinct or is it blurred and diffused? Diffused light
may indicate emulsions, oxides, color bodies, other
contaminants or oil degradation products.
The laser does not work with dark or
of the Week: Understand Filtration Needs First
To reward the lubrication and reliability
community for its participation in the Noria Message
Boards, every week we present the Post
of the Week award to one lucky member who receives
This week's award goes to:
Here's an excerpt from the post:
"Whenever you are looking at specifying
a filtration system for a specific application, it
is better to know exactly what you are trying to remove.
For instance, if the reason you are getting such a
high particle count is because of water in the oil,
then a standard filter with a high Beta rating won't
do anything for you. If the issue is air bubbles in
the oil, then filtration will not improve the situation.
You can get a 120 filter cart for an ISO 220 at low
temperatures just about anywhere, but getting one
to suit your application is what you need. I might
suggest you consider:
1. Working with a filtration cart company
to analyze and identify your application and contaminant
2. Get your lab to investigate the
cause of the high particle count and then proceed
to put together a specification to send to several
portable filter cart vendors for a quote."
the entire post.