After GNER Ownership
In October 2006, GNER put 89001 up for sale with a six-week deadline for bids. The AC Locomotive Group launched an appeal and fundraising effort to save the locomotive which was ultimately successful, purchasing the locomotive in December 2006. The loco is mostly complete although a number of major components require expensive overhaul before the loco could run on the main line again. A thorough survey has been undertaken to establish exactly what is required, and costs drawn up. Cosmetic work in 2007 saw the loco return to its original InterCity Executive colour scheme. Electrical restoration work has focussed on repairing and/or refurbishing the items that led to the locomotive being withdrawn from service, namely the traction motors and their associated field converter electronics. The locomotive was lifted by HNRC at Barrow Hill in December 2010 and three traction motors were removed including the one known to be faulty. These are currently (February 2011) being examined at Bowers to allow repair cost estimates to be made. Two of the field converters have been removed, one is faulty and again repair estimates are being sought. Initially it is intended, as funds become available, to allow one power group (i.e. one bogie) to become fully operational.
After many months of waiting, 2nd September finally saw testing of the first field converter overhauled at Fletcher Moorland Ltd, Stoke. There will be several iterations of testing so that there is a full understanding of any remaining defects and ensure that all aged or failed components are changed. The overhauled converter was completely dismantled with each power component being checked and replaced where required. A number of components were found to be performing outside of their specification and have been changed. The three control PCBs, these run the height of the converter, totalling the best part of £1m! The largest of the three is 2/3 of that. All electrolytic capacitors have been changed, both on the control PCBs and in the power circuit. These deteriorate with age.
Read more about this topic: British Rail Class 89
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