Explain scheduled maintenance of Stall Pitch, Active Pitch controlled of WPP.

Explain scheduled maintenance of Stall Pitch, Active Pitch controlled of WPP.
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1 Answer

Answer :

Scheduled Maintenance of Stall Pitch:

In scheduled maintenance of stall pitch, following maintenance activities are performed quarterly or yearly basis:

1. Grease the cable, which pulls the blade tip.

2. Check the movement of blade tip and angle.

3. Check the carbon rod, which turns the blade.

4. Grease blade tip bearing. 

Scheduled Maintenance of Active Pitch Control:

In scheduled maintenance of Active pitch following maintenance activities to be perform to be perform quarterly or yearly basis:

1. Check oil level of pitch drive, grease slew ring and slew pinion

2. Check the limit switches for perfect angles of blade pitching.

3. Check encoder, calibration of blades.

4. Check the connections of battery. In case of power failure, batteries will ensure the movement of blade to safe position.
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