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Denmark

Denmark

Vestas to pursue suppliers over V90 failures

DENMARK: Vestas is set to seek compensation from its suppliers over a gearbox bearings fault affecting its V90-3MW turbines.

The problem affect Vestas V90 3MW machines
The problem affect Vestas V90 3MW machines
At the start of the month the Vestas revealed that it was setting aside an additional €40 million in warranty provisions to cover a gearbox bearings malfunction affecting 376 of the machines, which represent 15% of all V90-3MW turbines installed.

All of the affected turbines contain gearboxes using an integrated bearings solution. The gearboxes were supplied to Vestas between June 2009 and September 2011 by Hansen Transmissions, now known as ZF Windpower Antwerpen following its acquisition by German firm ZF Friedrichshafen in October 2011.

A Vestas spokesman said the company would look at seeking compensation from both ZF and Schaeffler, ZF's supplier of the bearings.

He said: "Vestas has allocated €40 million to cover the potential additional maintenance, repair or replacement costs of our customer's gearboxes.

"Vestas will pursue all relevant actions with regards to a potential compensation from ZF and the bearing manufacturer."

A ZF Windpower spokesman said the firm was working with Vestas and Schaeffler to remedy this situation as soon as possible.

The affected bearings are the rotor main bearings that are fitted in the gearbox input shaft, a spokesman for Schaeffler explained.

"We are aware of individual cases of damage to rolling bearings of this type in the named turbines," he said. "We are currently investigating this issue to find the cause of the damage and are holding constructive talks with our customer on this matter."

For more on this story view:   Vestas V90 crisis takes new twist after ZF gearbox failures

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