Interpret vibration and oil analysis data to detect gearbox and bearing faults before failure.
Engineering & Maintenance
Condition Monitoring and Gearbox Maintenance for Wind Turbines
Detect and diagnose wind turbine gearbox and bearing faults through vibration and oil analysis, then plan borescope inspection, lubrication and major component exchange decisions.
🗓️Duration5 training days
📚Content4 modules · 8 sessions
🎓On completionAccredited attendance certificate
About the programme
Course Overview
A gearbox failure on a wind turbine rarely announces itself; it builds through weeks of rising vibration, degrading oil chemistry and subtle changes in gear mesh noise long before a trip shuts the machine down. This course teaches how to read those signals early enough to choose a planned repair over an unplanned crane mobilisation. Participants work with vibration spectra, oil analysis and particle counting to detect and classify gearbox and main bearing faults, then apply borescope and endoscopic inspection to confirm severity before deciding on a maintenance response. Sessions cover the distinction between micropitting, axial cracking and planetary stage wear, lubrication regimes and oil change planning, and the logistics of major component exchange against up-tower repair. The final modules extend the view to fleet level: rationalising SCADA alarms, configuring remote condition monitoring platforms and applying reliability-centred maintenance to decide where continuous monitoring earns its cost. Teaching uses sensor traces, oil analysis reports and inspection footage worked through in structured exercises. Participants leave able to turn condition data into a maintenance decision, not just a chart.
Expected Learning Outcomes
Diagnose gearbox failure modes including micropitting, axial cracking and planetary wear from inspection evidence.
Plan borescope inspections and translate findings into prioritised maintenance actions.
Decide between up-tower repair and major component exchange for a given fault condition.
Set lubrication regimes and oil change intervals based on condition trends rather than fixed schedules.
Rationalise SCADA alarms and configure remote monitoring to support predictive maintenance.
Build a fleet-level reliability-centred maintenance strategy for turbine drivetrains.
Who Should Attend
Wind turbine maintenance technicians and condition monitoring analysts.
Reliability engineers responsible for turbine drivetrain performance.
Asset managers overseeing onshore or offshore wind turbine fleets.
SCADA and remote monitoring specialists supporting turbine operations centres.
Gearbox and bearing suppliers' service engineers working with wind operators.
Maintenance planners scheduling major component exchange campaigns.
Course Modules
Select any module to see its sessions and points.
01Condition Monitoring Systems for Turbine Drivetrains
2 sessions · 8 points
Session 1Vibration Analysis and Sensor Placement on Main Bearings and Gearboxes
- Position accelerometers on the main bearing, gearbox and generator to capture the vibration signatures each component actually produces.
- Interpret a vibration spectrum to separate gear mesh frequencies from bearing defect frequencies and shaft imbalance.
- Set alarm and trip thresholds for gearbox vibration in line with ISO 10816/20816 severity guidance.
- Compare a trending vibration report against baseline data to judge whether a bearing defect is stable or accelerating.
Session 2Oil Analysis and Particle Counting for Early Fault Detection
- Draw and label an oil sample from a gearbox sump without introducing contamination that would mask the true wear signature.
- Read a particle count report against ISO 4406 cleanliness codes to judge whether filtration is keeping pace with wear debris generation.
- Use ferrography results to distinguish normal rubbing wear particles from cutting or fatigue debris warning of gear damage.
- Build an oil analysis trend chart that links viscosity, water content and metal content to a maintenance decision.
02Gearbox Failure Modes and Diagnostic Interpretation
2 sessions · 8 points
Session 1Recognising Micropitting, Axial Cracking and Planetary Stage Wear
- Identify micropitting on gear flanks and judge whether it is stabilising or progressing towards flank breakage.
- Recognise the vibration and oil debris signature associated with axial cracking of high-speed shaft bearings.
- Inspect planetary gear stages for uneven load sharing between planet gears using wear pattern evidence.
- Rank suspected gearbox faults by severity to decide between continued monitoring and scheduled intervention.
Session 2Borescope and Endoscopic Inspection Techniques
- Plan a borescope inspection route through gearbox access ports to reach each gear mesh and bearing race.
- Capture and log endoscopic images of gear tooth flanks in a format that supports comparison across inspection cycles.
- Distinguish surface discoloration from active spalling when reviewing borescope footage of bearing raceways.
- Write an inspection finding report that links image evidence to a recommended maintenance action and timescale.
03Maintenance Execution and Major Component Exchange
2 sessions · 8 points
Session 1Up-Tower Repairs Versus Major Component Replacement Decisions
- Evaluate whether a detected gearbox fault can be managed up-tower or requires major component exchange.
- Plan a major component exchange, sequencing crane mobilisation, weather windows and replacement gearbox logistics.
- Weigh the cost and downtime of an up-tower bearing replacement against full gearbox exchange for a given fault severity.
- Sequence isolation, lockout and mechanical handling steps for a nacelle-level gearbox repair.
Session 2Lubrication Regimes and Oil Change Planning for Gearboxes
- Select a synthetic gear oil specification matched to gearbox operating temperature and load cycles.
- Set an oil change interval using analysis trends rather than a fixed calendar period alone.
- Plan a lubrication route for yaw, pitch and gearbox systems across a turbine fleet with mixed models.
- Verify filtration system performance after an oil change to confirm target cleanliness codes are met.
04Fleet-Level Strategy and Predictive Maintenance
2 sessions · 8 points
Session 1SCADA Alarm Rationalisation and Remote Monitoring Platforms
- Rationalise SCADA alarms to separate genuine gearbox and bearing warnings from nuisance trips.
- Configure a remote condition monitoring platform to flag trend deviations before they reach alarm thresholds.
- Compare condition data across a turbine fleet to identify a model-specific failure pattern rather than an isolated fault.
- Build a dashboard view that ranks turbines by maintenance priority using combined vibration and oil trend data.
Session 2Reliability-Centred Maintenance and Logistics Planning for Turbine Fleets
- Apply reliability-centred maintenance logic to decide which turbine components justify continuous condition monitoring.
- Plan offshore maintenance logistics around weather windows, vessel availability and technician certification.
- Build a spare parts strategy for gearboxes and main bearings based on fleet failure history.
- Present a fleet maintenance strategy that balances condition-based intervention against scheduled major overhauls.
What the participant receives
4 course modules
A structured syllabus
8 training sessions
across 5 days
32 detailed points
Applied, detailed content
Accredited attendance certificate
On completing the programme
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