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MacArtney supplies tool for nacelle storage

By: Tom Russell 23/03/2018 MacArtney

General Turbines Windfarms

MacArtney has been commissioned to supply a generator rotation tool to Siemens Gamesa Renewable Energy for the long-term storage of its SWT-6.0/7.0/8.0 nacelles.

The nacelles are subject to long-term storage and therefore require maintenance to prevent bearing degradation during standstill. If not regularly rotated, the main bearings may suffer corrosion and quality damage, for which reason keeping components well-lubricated at all times is important.

The battery-powered and radio-controlled mobile unit supplied by MacArtney is remotely driven under the nacelle with hub and mounted generator, while the nacelle is stored on its transport frame. After correct positioning of the GRT under the generator, the fully automated process is initiated.

The procedure of rotating the main bearing protects the bearing from potential corrosion during long-term storage. Equipped with embedded software and battery package, the GRT is able to operate for 10 hours a day.

MacArtney stated that performing at least five complete 360° revolutions every 14 weeks, the GRT provides for a practice of keeping the main bearing well-lubricated as the GRT makes sure that the grease in the bearing is properly distributed.

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MacArtney supplies tool for nacelle storage

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