Wind Turbine Gearbox Preventive Maintenance Checklist

This wind turbine gearbox preventive maintenance checklist ensures compliance with IEC 61400-4 (Wind Turbine Gear Design Standard), AGMA 6006 (Design and Specification of Gearboxes for Wind Turbines), OSHA 1910.269 safety requirements, and OEM gearbox O&M specifications. Designed for wind turbine drivetrain technicians to perform scheduled oil changes, vibration analysis, and mechanical inspections that protect gearbox warranty and prevent costly failures.

  • Industry: Renewable Energy
  • Frequency: Annually
  • Estimated Time: 6-8 hours
  • Role: Wind Turbine Drivetrain Technician
  • Total Items: 30
  • Compliance: IEC 61400-4 Wind Turbine Gear Design, AGMA 6006 Gearboxes for Wind Turbines, OSHA 29 CFR 1910.269 Safety Requirements, OEM Gearbox O&M Specifications, ISO 4406 Hydraulic Fluid Cleanliness

LOTO and Safety Preparation

Energy isolation before gearbox service.

  • Turbine stopped, rotor locked, and LOTO applied?
  • Zero energy state verified?
  • Hydraulic system pressure bled down?
  • Oil-rated PPE worn (safety glasses, face shield, nitrile gloves)?
  • Waste oil disposal containers and spill kit ready?

Oil Sampling and Analysis

Gearbox oil condition assessment.

  • Oil sample taken before drain for analysis?
  • Sample properly labeled and sent to certified lab?
  • Drained oil appearance checked (color, particles, water)?
  • No significant metal particles or sludge in drained oil?
  • Oil volume drained within expected range?

Gearbox Internal Inspection

Visual internal inspection via inspection ports.

  • Gear teeth free of pitting, spalling, or surface fatigue?
  • Accessible bearings showing no discoloration or unusual wear?
  • Input/output shaft seals free of leakage?
  • Flexible couplings and elastomers in good condition?
  • Gearbox Internal Inspection Photo

Oil System and Filters

Lubrication system and filtration service.

  • All oil filters replaced per manufacturer interval?
  • Approved oil grade filled to correct level?
  • Breather/desiccant changed?
  • Oil cooler/heat exchanger cleaned?
  • Oil cleanliness verified at ISO 4406 target level?

Vibration Analysis

Condition monitoring via vibration.

  • Vibration measurements taken at all sensor locations?
  • Vibration levels within alarm thresholds vs. baseline?
  • CMS sensor calibration verified?
  • High-speed shaft vibration within limits?
  • Vibration analysis report completed?

Completion and Documentation

Service completion and records update.

  • Turbine restored to service and operating normally?
  • Service record updated in CMMS with all work performed?
  • Previous oil sample results reviewed before this service?
  • Work documented per OEM warranty requirements?
  • Service Notes

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Why Use This Wind Turbine Gearbox Preventive Maintenance Checklist?

This wind turbine gearbox preventive maintenance checklist helps renewable energy teams maintain compliance and operational excellence. Designed for wind turbine drivetrain technician professionals, this checklist covers 30 critical inspection points across 6 sections. Recommended frequency: annually.

Ensures compliance with IEC 61400-4 Wind Turbine Gear Design, AGMA 6006 Gearboxes for Wind Turbines, OSHA 29 CFR 1910.269 Safety Requirements, OEM Gearbox O&M Specifications, ISO 4406 Hydraulic Fluid Cleanliness. Regulatory-aligned for audit readiness and inspection documentation.

Frequently Asked Questions

What does the Wind Turbine Gearbox Preventive Maintenance Checklist cover?

This checklist covers 30 inspection items across 6 sections: LOTO and Safety Preparation, Oil Sampling and Analysis, Gearbox Internal Inspection, Oil System and Filters, Vibration Analysis, Completion and Documentation. It is designed for renewable energy operations and compliance.

How often should this checklist be completed?

This checklist should be completed annually. Each completion takes approximately 6-8 hours.

Who should use this Wind Turbine Gearbox Preventive Maintenance Checklist?

This checklist is designed for Wind Turbine Drivetrain Technician professionals in the renewable energy industry. It can be used for self-assessments, team audits, and regulatory compliance documentation.

Can I download this checklist as a PDF?

Yes, this checklist is available as a free PDF download. You can also use it digitally in the POPProbe mobile app for real-time data capture, photo documentation, and automatic reporting.

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