Lesson 1Drivetrain—generator: insulation resistance (megger) testing, bearing temperature, vibration, electrical output checksCovers generator drivetrain checks, key on insulation tests, bearing temps and vibes, electrical output quality, and limits showing when to clean, tighten, or swap parts.
Insulation resistance (megger) test procedureGenerator bearing temperature limitsVibration measurement points and alarmsVoltage, current, and power quality checksInterpreting generator test resultsLesson 2Hydraulic systems: reservoir level, filter inspection/replacement, pressure tests, leak detection and hydraulic oil analysisLooks at hydraulic checks, tank levels, filter looks or swaps, pressure tests, leak hunts, hose state, and oil samples for dirt, water, and wear.
Reservoir level and sight glass inspectionFilter differential pressure and changeoutSystem pressure and relief valve testsHose, fitting, and cylinder leak checksHydraulic oil sampling and lab analysisLesson 3Cooling systems: radiator/heat exchanger cleaning, coolant level and quality checks, fan and thermostat operation testsHandles cooling routines, cleaning radiators and exchangers, coolant levels and quality, hoses and clamps, and testing fans, pumps, thermostats under normal loads.
Radiator and heat exchanger cleaning stepsCoolant level, quality, and freeze point checksFan, pump, and thermostat functional testsHose, clamp, and fitting leak inspectionRecording cooling system measurementsLesson 4Yaw system: yaw drive gear and brake inspection, encoder and limit switch checks, lubrication and torque checksDetails yaw maintenance, drive and brake looks, gear and bearing lube, encoder and switch checks, cable loops, and torque on key yaw bolts.
Yaw gear, pinion, and bearing inspectionYaw brake pad, disc, and clearance checksLubrication of yaw gears and bearingsEncoder and limit switch functional testsTorque checks on yaw fastenersLesson 5Rotor and blades: visual blade surface inspection, leading/trailing edge checks, lightning protection continuity, bolt torque at hubCovers rotor and blade checks, close looks at surfaces, edges, lightning continuity, hub bolt torques, and logging defects with pics and ratings.
Blade surface and laminate visual checksLeading and trailing edge damage checksLightning protection continuity testingHub and blade bolt torque verificationBlade defect classification and reportingLesson 6Drivetrain—main bearing: axial/radial play checks, lubrication sampling, temperature and vibration monitoringBreaks down main bearing checks, play measures, lube samples and analysis, temp and vibe tracking, linking to alignment, loads, and early damage signs.
Axial and radial play measurement methodsGrease sampling and contamination checksMain bearing temperature monitoringVibration signatures of bearing defectsCriteria for main bearing maintenanceLesson 7Nacelle interior general: structural inspections, housekeeping, vibration sensor mounts, cable routing and tiesDescribes nacelle inside checks, frame and cover structures, tidying up, cable routes and ties, vibe sensor fits, and lights, fire alarms, safety gear verifies.
Main frame and cover structural inspectionHousekeeping, spills, and debris removalCable routing, clamping, and strain reliefVibration sensor mount and wiring checksNacelle lighting and safety devicesLesson 8Electrical and control cabinets: visual inspection, busbar torque checks, contactor and relay function tests, SCADA alarms review, firmware/configuration verificationCovers electrical cabinet looks, visual checks, busbar and terminal torques, contactor and relay tests, SCADA alarm reviews, and firmware/config checks against standards.
Cabinet cleanliness and visual damage checksBusbar and terminal torque verificationContactor, relay, and breaker function testsSCADA alarms and event log reviewFirmware and configuration validationLesson 9Braking system: brake pad wear measurement, brake hydraulic/pneumatic pressure checks, functional brake testHandles brake maintenance, pad wear measures, hydraulic or air pressure checks, accumulator state, brake tests, and logging stop distances and response times.
Brake pad wear and rotor surface checksHydraulic or pneumatic pressure testsAccumulator pre‑charge and leak checksEmergency and service brake function testsRecording brake performance resultsLesson 10Tower and access: visual inspection points, corrosion checks, bolts and torque verification, door/lock and grounding checksTackles tower and access checks, visuals for bends, rust, coating damage, bolt and flange torques, ladder and platform strength, doors/locks, grounding tests.
Tower shell and weld visual inspectionCorrosion, coating, and touch‑up actionsFlange bolt torque and tension checksLadders, platforms, and fall arrest checksGrounding and bonding continuity testsLesson 11Pitch system: actuator operation tests, hydraulic/electrical checks, backlash and torque checks, position sensor verificationExplains pitch maintenance, actuator tests, hydraulic or electrical checks, backlash and torque verifies, sensor calibrations, and controller alarms or faults review.
Pitch actuator stroke and speed testsHydraulic or electrical supply checksBacklash, play, and torque verificationPitch position sensor calibration checksPitch fault and alarm history reviewLesson 12Drivetrain—gearbox: oil level and quality tests (viscosity, particle count), leak detection, gear tooth inspection and vibration analysisFocuses on gearbox health, oil levels and quality tests, leak hunts, breather and filter looks, gear teeth visuals, and vibe analysis for wear, misalignment, pitting.
Oil level checks and top‑up proceduresOil sampling, viscosity, and particle countsLeak paths, seals, and breather inspectionGear tooth surface and contact pattern checksGearbox vibration trend evaluation
