The Myth: The Ultraprobe 201 Grease Caddy can be used as an Ultraprobe to test and trend bearings?
The Ultraprobe 201 Grease Caddy has become an important tool
for many lubrication programs. It is
very useful in preventing over lubrication conditions and is relatively easy to
use. Essentially the Grease Caddy can be considered an accessory
to a digital Ultraprobe. The Grease Caddy is not
a trending tool, nor is a testing tool. It is used only after bearings have been
identified as needing lubrication.
digital Ultraprobes are used in routes to log data and identify those bearings
with elevated levels of 8 dB or more over baseline. Once a low alarm report is generated in
Ultratrend DMS and printed out as a “lubrication” route, the Grease Caddy is
brought along on the route and is used as the grease is being applied. It’s that simple. Procedures should be established to assist
the Lube Tech in performing the lubrication process effectively. This means establishing a defined low alarm
dB level. Usually this is 8 dB over
baseline. However, this is a recommended
practice and it may not universally apply to all plants. Therefore, after experimentation, a different
warning level may be established. No
matter, once the alarm level has been established, the lube technician should
be instructed to stop adding lubricant when the dB level drops. Remember, the new grease is going to be colder
and therefore a bit less elastic than the grease in the bearing. Therefore, lube techs should add a little at
a time to allow the grease to work its way into the bearing race area. The
placement of the Grease Caddy transducer is as close to the bearing as
possible, preferably on the bearing housing, as the grease is being applied.
We've produced a Lubrication Guide to assist and that can be downloaded by clicking here.
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