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Appendix H-2 Maintenance Schedule
NOTICE: Use of the material contained in this document is subject to the warning on page Iv and the disclaimer on page v of this
document.
DOC012R02 AOC 15/50 User Manual Nov 2001
158
Scheduled Routine Maintenance for the AOC 15/50
Monthly (ground level inspection):
•
Visually inspect the wind turbine and site for obvious problems.
•
Record the meter and run time readings.
•
Inspect the dynamic brake components for discoloration or failure.
Six months after turbine installation:
•
Visually inspect the tower fasteners and carry out a random torque check.
•
Check and clean the electrical connections.
•
Check the blade bolt washer alignment and all accessible fasteners, especially the tower top bolts, blade
bolts and yaw bearing bolts.
•
Inspect the yaw bearing and yaw lock.
•
Inspect the tip brakes.
•
Check the torque of the hinge block nuts and the tip brake plate fasteners.
•
Inspect the generator.
•
Inspect the gearbox for leaks and vent clogging.
•
Check the oil level in the site glass.
•
Inspect the main shaft for cracking.
•
Inspect the rotary transformer.
Annually
•
Check oil level in the site glass.
•
Grease the yaw bearing and yaw lock.
•
Clean the blades.
Every two years (or after severe events):
•
As for the inspection carried out after the first six months of operation
•
Clean the blades.
•
Re-calibrate the control system if necessary.
•
Inspect and replace the anemometers if necessary.
•
Inspect all exposed cables
Every five years:
•
As for the inspection carried out every two years.
•
Overhaul the wind turbine generator if the oil samples and/or inspection records indicate this to be
necessary.