Risks From an Abrupt Change
to a Backup Lubricant
If a lubricant change is possible (or, for
whatever reason, unavoidable), it is best to get
a firm grasp on the potential risks. Your ace
in the hole may not be all that it seems. Veri-
fication is absolutely necessary. Fortunately,
the industr y has considerable experience
and understands the risks associated with a
sudden changeover to a backup lubricant.
ese include:
• e backup lubricant was incompatible
with the previous lubricant, and some
mixing was unavoidable (or not properly
avoided). e incompatibility resulted in
lubricant performance defects and associ-
ated reliability consequences.
• e backup lubricant was incompatible with
internal sediment, sludge and/or varnish.
• e backup lubricant was incompatible
with internal machine surfaces (paint,
Figure 1.
ML
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