Sarens has completed maintenance work on the Longpark wind farm, located in the Scottish borders.
Longpark has been operational since 2009 and comprises 19 turbines with a production capacity of 38MW.
To work on the Senvion MM82/2050 turbines Sarens brought an LTM1500-8.1 crane unit and a Demag AC220-5, including rehired additional plant equipment, such as towerlights, telehandler and hook, man basket and a mobile welfare unit to the site.
Thanks to this equipment, the Sarens engineering team was able to plan the tandem lift operations for the removal of the rotor assembly from the turbine and subsequently reorient and position the assembly on the crane pad.
Finally, the removal and replacement of redundant drive train was performed.
In addition, because the orography of the area where the wind farm is located is particularly steep, Sarens used certain additional elements to avoid civil works, thus incurring additional costs for the client.
The engineering team on site raised the rotor assembly by using timber mats to raise the component above adjacent gradients in the landscape.