Power generation · Gas turbine
42 → 11MPC ΔE over 90 days
Varnish cleared without a charge-out
A 2 500 litre turbine lube system had sat in the alarm band for varnish potential for three
consecutive quarters, with two slow starts attributed to control valve stiction.
Deposit-control fluid was dosed live at 4 % with a 25 L/min kidney loop running throughout.
Filter elements were changed twice during the clean-up as deposit came back into solution.
Charge retainedNo outage taken90 days
Oil & gas · Hydraulic power unit
18 → 3Valve faults per year
Servo valve sticking eliminated
Repeat sticking on directional control valves had been treated as a valve quality problem
and answered with replacements. Oil analysis showed 640 ppm water and a soft deposit load.
Vacuum dehydration brought water inside limits, and correctly sized desiccant breathers
stopped humid air re-wetting the reservoir on every thermal cycle.
Root cause foundValve spend cut6 months
Manufacturing · Compressor fleet
4 yrsCharge life, still in service
Drain intervals replaced by condition limits
A fixed 12-month oil change schedule across a compressor fleet was replaced with
condition-based change-out after a full baseline showed most charges were being discarded
with over half their oxidative life remaining.
Quarterly sampling with defined caution and alarm limits now triggers change-out. Two units
have been changed on data in four years; the rest remain in service.
Waste oil reducedOPEX reducedOngoing
Marine · Deck hydraulics
21/19/15 → 16/14/11ISO 4406 cleanliness code
Cleanliness brought inside OEM limits
Crane and winch hydraulics were running four ISO codes above the manufacturer's limit,
with pump replacements running well ahead of expected life.
Offline filtration on a scheduled rotation, sealed transfer containers and a corrected
top-up procedure brought cleanliness inside limits and held it there between port calls.
Pump life extendedProcedure corrected12 months
Cement · Kiln drive gearbox
63 %Reduction in filter consumption
Dust ingress stopped at the source
A kiln drive gearbox was consuming filter elements at a rate that made filtration the
single largest lubrication cost on the line, while wear metals continued to climb.
The programme addressed ingress first, seal condition, breather specification and
housekeeping around the fill point, before any change to filtration or fluid.
Ingress controlledWear metals stabilised9 months
Data centre · Standby generation
100 %Successful start rate maintained
Standby assets kept genuinely ready
Standby generator sets spend almost all their life idle, and a cold reservoir condenses
water out of humid air every night, degradation that a run-hours-based schedule never sees.
Calendar-based sampling regardless of run hours, plus desiccant breathers and water activity
monitoring, replaced a maintenance routine built entirely around operating time.
Standby risk removedCalendar-based samplingOngoing