FEATURE SPONSOR
WHY SYNTHETIC OIL? XXXX WORKING TOGETHER
Between us we work the wands between each roller and raceway spraying solvent and dissolving the grease, stopping intermittently to check our progress. The wands are set down so that filters can be changed and solvent reservoir checked. Once removed visual inspection of the filter is made for signs of metallic particles caught in the mesh. A further cycle is concluded, after which a brief stop and clean up precedes our delicious up-tower lunch of petrol station bought sandwiches. We really are living the high life. Normally this is a good opportunity to attend to basic needs not so well provided for in the nacelle or to enjoy the view from the top of the tower, but today wet weather and mist mean the views of the picturesque Northern Irish countryside are off limits. After a tidy up, the rig is charged for another cycle and nearing the bottom of the bearing visible signs of damage are apparent on the downwind race.
The bearing is checked, ensuring as much grease as possible has been removed. The bearing is allowed time to dry briefly and when ready, an endoscope inspection is made. Access is limited and there is still some residual grease on one side but only minor signs of damage are apparent compared with what is normally observed.
ONWARDS AND DOWNWARDS
Photographs are taken documenting the damage and general condition of the bearing and it is time to reattach the main bearing covers. It’s already five-thirty when the auto-greaser is set up ready to repack the bearing with 12kg of fresh grease. The rig is dismantled, the equipment and nacelle are thoroughly cleaned before the process of returning everything to the ground via the nacelle crane.
While the auto-greaser does its thing, the day’s work is discussed with the supporting technicians. My colleague climbs down the tower and starts to load the van. I finish filling the bearing with grease, pack away the auto-greaser in the last remaining bag and re-don my climbing harness and gear for the descent. There is a final debrief in the site office. Our waste solvent-
grease mixture is safely disposed of into the site waste facilities and it’s time to sign off.
A PLEASANT EVENING – BUT AN EARLY NIGHT!
Showered, suited and booted we leave the hotel to see what delights can be found at nine o’clock in this sleepy village. A couple of pints of Guinness at the local and a Chinese takeaway are the order of the day and we eat in the company of the hotel owner who is most hospitable in sharing some Irish whiskey. We could have stayed longer but today was the last flush of the trip and conscious of an early morning flight we make our excuses and head for bed, our jet setting lives set to continue at seven in the morning with a flight from Belfast to East Midlands Airport.
SCAN/CLICK
Dave Moss Commercial Manager
Romax MORE INFO +44 (0) 1295 753600 |
enquiry@norbar.com |
www.norbar.com www.windenergynetwork.co.uk 39
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AN EVOLUTION FOR TORQUE CONTROL
2
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