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Justifying an Oil Analysis Program
David M Giacobozzi, Machine Repair/PDM Specialist,
American Axle Mfg
In response to this question I would tell him that many OEMs
recommend that the customer change their machine oil after so
many hours. This time span usually works out to be every 6 months
to 1 year. By applying an oil analysis program, the oil will be
changed only when the chemistry begins to deteriorate.
In addition, an increase in particle count or a change in viscosity
can provide early warning of a impending catastrophic failure.
My experience is that oil can be left in the tank for as long
as 6 years with no loss of oil performance. The full service life
of pumps, valves cylinders, servo's, rotary actuators, and any
other related hydraulic components can be realized by the early
warning that oil analysis provides, not to mention the decrease
in unscheduled downtime to make emergency repairs.
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