SDT FS.LBX.001, Руководство пользователя, Страница: 46 / 52

LUBExpert User Manual
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In the lubrication process performed on 03.07.2019., no alarm was assigned to this particular asset.
The initial reading was 10 dBµV RMS and after 10 shots of grease or 20 grams final, a reading of the
same 10 dBµV RMS automa
tically stopped the process and declared Lube Alarm Level “Lubrication
failure”. This condition requires additional attention, as applying grease did not make any difference
in the bearing friction levels.
In this lubrication process, initial reading o f 58 dBµV RMS triggered “WARNING” alarm and
lubrication was performed. Final reading of 28 dBµV is below the prescribed alarm level, so alarm
sign is a green oil drop. Lube Alarm Level indicates that the lubrication process was successful, but
with an additional remark to shorten the lubrication process interval. This means that the added
grease quantity was significantly greater than the one automatically calculated based on bearing size.
Since the friction level was lowering, LUBExpert did not stop the process until minimum friction level
was achieved, but high grease quantity suggests shortening the interval when operator visits this
asset and takes readings.
In this lubrication process, an initial reading of 59 dBµV RMS triggered “WARNING” alarm and
lubrication was performed. Final reading of 40 dBµV is below alarm level, so alarm sign is a green oil
drop. Lubrication process showed us a bearing behavior that is suspected to be a failure. As friction
level showed overall constant decrease, lubrication process was allowed to continue until calculated
quantity was reached (this is a unique case/status where LUBExpert stops the process at that
quantity). This is one of two “red” Lube alarm levels as it requires additional attention of the
Condition Monitoring team and should be shared as a lead.
This lubrication process nicely explains the use of alarms and messages assigned. An initial reading of
37 dBµV did not trigger an alarm and message “Lubrication not needed” was automatically assigned.
As operator decided to ignore alarm and add grease anyway, he could continue the process only by
adding a message to confirm he was ignoring LUBExpert’s suggestion. Additional message was
“Lubrication needed”, marked as manually added. Once process was initia
ted, 7 grams of added
grease increased the friction level and process was stopped with Lube alarm level “Over lubrication”.