Wärtsilä 2-Speed Gear
Wärtsilä Wärtsilä 2-Speed Gear — Propulsion reduction gearbox - Specialized application for noise and fuel efficiency.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Visual and ultrasonic thickness inspection of blade leading edges, trailing edges, and hub surface. Document any erosion pits, material loss, or spalling. Check cavitation patterns especially near hub junction.
Verify pitch control actuator response under load. Check blade angle synchronization across all blades. Test oil pressure and hydraulic fluid condition. Inspect actuator rod seal condition and surface corrosion.
Perform magnetic particle inspection (MPI) and dye penetrant testing (PT) on hub exterior. Check for visible cracks around blade root areas and hub bearing surfaces. Measure hub runout during rotation.
Examine oil distribution passages for sediment buildup. Test oil flow rate through blade actuation circuits. Inspect dynamic and static seals for wear, cracks, and swelling. Check oil color and viscosity grade.
Measure bearing clearance and hub bore diameter. Check for scoring, pitting, or galvanic corrosion. Perform radial run-out measurement with dial indicator. Inspect bearing material for delamination.
Type-general inspection and maintenance points for this equipment category — not model-specific.
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