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66xx no.6695

Discussion in 'Steam Traction' started by Nigel Clark, Nov 13, 2009.

  1. twr12

    twr12 Active Member

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    6695 failed during the week, undergoing maintenance. Awaiting materials....
     
  2. Ann Clark

    Ann Clark Member

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    Engine was stopped for routine maintenance and boiler wash out. During this a problem was found and she is now awaiting parts.
     
  3. Nigel Clark

    Nigel Clark Member Loco Owner

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    The current situation is that the loco is out of traffic awaiting examination and repair. Several problems became apparent last week whilst the engine was being washed out and receiving routine maintenance. The first item was a severely worn shank on the rear drawhook caused by one of the metal spacers cutting into it. SVR have kindly modified (56xx class have a unique length) one of theirs as a temporary measure whilst we source a replacement.

    The loco was then steam tested last Friday with the intention of returning to traffic on the Sunday but a blow was noted at the base of the RH steam pipe (joint with cylinder block), plus a problem with the chamber side vacuum.

    SVR began to strip out the steam pipe but it isn't an easy job. Their engineering dept have a heavy workload with their own fleet and it has become apparent that the steam pipe joint is not going to be a quick job. If SVR continued with the exam and repairs they would be unlikely to get much use out of the engine before the end of the hire period therefore, in discussion earlier today, it was reluctantly agreed by both parties for the hire to end now and the loco put back together for transport home to Swanage where the various faults will be attended to.

    Whilst it is an unfortunate end to this hire, the engine has proved useful to the SVR and we were only too pleased to be able to help them during their time of need. The important period for them was the 2009 Santa Season, the hire this year was agreed partly as a thankyou to them for undertaking the piston valve overhaul.
     
  4. olly5764

    olly5764 Well-Known Member

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    Gotta agree with your thoughts there Nigel, I had a very hard turn on her before the valve and piston repair, but having had a couple of goes on her since, and she is a decent, and strong little machine (although I'm glad I didn't have to oil her up!)
     
  5. Nigel Clark

    Nigel Clark Member Loco Owner

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    6695 arrived home at Swanage last Wednesday (26th) and has now been examined by our engineer. We intend to start some of the remedial work this week and hope to have the engine back in traffic before too long but can't give any gaurantees as yet. Main focus is on the steam pipe joint in the smokebox and then work through the vacuum brake system to identify & rectify any faults. There are a few other jobs on the list too and we'll see how we get on.
     
  6. Nigel Clark

    Nigel Clark Member Loco Owner

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    Have resurrected this thread on 6695 from 2010!! Of course the engine did get repaired and returned to traffic at Swanage in the early summer of that year.

    2015 is, unbelievably for me, 6695's final year in traffic before going out for 10 yearly overhaul; the boiler 'ticket' expires on 31st december this year. 6695 was first steamed in the autumn of 2005 though not entering traffic fully until February 2006 due to some teething problems. She has given good service to the Swanage Railway over the intervening years as well as visits to the East Somerset Railway (where she took part in a preservation 'first' of two 56/66xx engines working together in 2007, the other engine being 5637; and this still hasn't been replicated), Spa Valley Railway, North Norfolk Railway, West Somerset Railway (3 Gala's so far and another imminent!), South Devon Railway, and the Severn Valley Railway. As already mentioned, 6695 is booked to attend the WSR Spring Steam Gala next month which is appropriately themed!

    The 6695 Locomotive Group is currently in contact/discussion with several potential contractors regarding the 10 yearly overhaul as we are keen to get the work started as early as possible to reduce the likely time out of traffic.
     
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  7. Reading General

    Reading General Part of the furniture

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    with the surfeit of SR locos now at Swanage, it's good to here this. I'd have hated to see 6695 sidelined for donkeys years
     
  8. John Petley

    John Petley Well-Known Member

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    Yes, it's good that 6695 won't be out of action for too long. When I've been down to Swanage, I've heard the occasional grumblings about it, but based on its GWR origins rather than its performance. OK, not a geographically appropriate loco on an LSWR/SR branch line, but it's fine, gutsy engine that can handle the usual 5 or 6 carriages easily and it can be quite a noisy little beast into the bargain. Personally, I've never felt disappointed if I've gone for a ride on the line and 6695 has been one of the rostered engines - although having said that, with 34070, 30053, 31806 and (hopefully soon) 80104 also available for traffic this year, I don't think there are any engines in the Swanage fleet that would disappoint me!
     
  9. Nigel Clark

    Nigel Clark Member Loco Owner

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    Resurrecting this thread yet again!

    Many people may be wondering what has been happening with 6695 since the unfortunate low-loader incident in March 2015, yes it was that long ago! Sorting out the various issues of the insurance claims and the full extent of the damage has taken many months, inspections, tests, and several meetings, even getting permission to dismantle the engine for full examination took quite a while. In the end dismantling was completed in December and the final testing & examination of wheelsets not completed until March this year.

    To summarize the damage, there was collision damage to the front end (loco shot forward several feet and hit the trailer swan-neck) resulting in bent buffer heads, bent buffer plank, distortion to footplate angles & brackets, distorted & torn dragbox, gussets and strengtheners (tearing caused by securing chains & hooks); similarly distorted & torn rear dragbox and gussets (again chains & hooks), very slight movement of leading horns/frames, much of the brake gear bent/distorted including 2 brake hangers bent beyond repair, many pins, and all stretchers and pull rods; all wheel springs and spring bolts subjected to excessive loading and require refurbishment/replacement; some support pins and spring bolt pockets have stretched rivets. Please note that this is not an exhaustive list but just a summary. We were fortunate that there does not appear to be any damage to the smokebox/boiler/firebox, and full testing of the wheelsets has shown no signs of damage to these either. Lots of tarmac and debris had been thrown up as the trailer had scoured the road surface for quite a distance and the debris got everywhere!

    The locomotive is at the Williton base of West Somerset Restoration (delivered directly there following the incident) who are undertaking the insurance damage repair work and also starting on the mechanical aspects of the overhaul as 6695 is now due it's 10 yearly heavy general. The front and rear ends have largely been rebuilt, and the brake gear repairs are progressing well. The springs are away with a contractor for refurb/replacement and new spring bolts will be ordered shortly. Two replacement brake hangers have also been acquired.

    Whilst the wheelsets were not damaged in the incident, there is some wear and tear to sort; South Devon Railway Engineering are currently replacing a worn crankpin on the driving wheelset as well as skimming all tyres to restore full profile and removing and re-riveting loose balance weights. Cleaning of frames is underway to prepare for repainting. Bryn Engineering have removed the old cylinder liners and bored out the block ready for new liners which are now being machined; new piston head castings have been purchased and await machining & fitting to the existing rods once the replacement liners have been fitted. The valve liners were renewed around 3 years ago and are fit for further service without the need to skim the bores. All slidebars have been re-ground and await refitting. The boiler has been gutted and inspections & testing are under way; once we have the full inspection report we can draw up a scope of work to enable us to seek quotes from various contractors.

    We are hoping to have the frames re-wheeled later this year, and would like to have the bottom end largely complete by early next year, leaving us with the boiler and such items as refurbishment of boiler fittings and tanks & bunker for the remainder of 2017.

    We would like to have 6695 ready for a return to traffic during early 2018, but whilst this is realistic it will be very dependent upon availability of funds. We are investigating various sources of funding and once we have an idea of work required on the boiler & firebox we will launch a specific appeal for that part of the project. Meanwhile donations of any size will be most gratefully received, and shares (£250 each) are available in the locomotive and can be purchased outright or by monthly instalments. Donations and/or share enquiries may be sent to The Membership Officer, 6695 Locomotive Group, Cherry Tree House, St Martins Road, Upton, Poole, Dorset BH16 5NQ.

    I will happily answer (if I can) on this forum any questions regarding the locomotive and progress with repairs/overhaul.
     
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  10. Nigel Clark

    Nigel Clark Member Loco Owner

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    image4.jpeg image5.jpeg image1.jpeg image2.jpeg Leading and trailing coupled wheelsets with axleboxes & springs trial fitted, Repaired motion bracket refitted and primed.Refurbished items awaiting refitting. Pictures by Group member Scott Barnes.
     
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  11. Nigel Clark

    Nigel Clark Member Loco Owner

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    IMG_1168.JPG IMG_1171.JPG IMG_1174.JPG IMG_1178.JPG IMG_1166.JPG IMG_1205.JPG

    Overhaul of 6695 at Williton is proceeding steadily. Attached pictures show bunker back in place, water valves and vacuum cylinder refurbished and refitted along with lubrication grease lines. Driving wheelset returned from South Devon Railway Engineering having had tyres reprofiled & balance weights re-riveted (as have all three main wheelsets), and one new crankpin fitted. Frames cleaned and painted, drawgear refurbished, brake hangers and rigging refurbished & refitted including two replacement brake hangers acquired to replace the two bent in the low-loader incident. New cups made for the radial truck spring hanger bolts.

    As mentioned above all coupled wheels have had tyres reprofiled and balance weights re-riveted at SDR, the radial truck wheelset remains at SDR awaiting fitting of new tyres. Repair and refurbishment of all brake gear is in progress, the majority of which was damaged in the low-loader incident; this has included acquisition of two hangers to replace the bent ones, and manufacture of some replacement parts. The cast steel motion bracket (stretcher) was found to have several hairline cracks so was sent away for specialist weld repairs; this has now returned and been refitted to the frames. Bryn engineering are due to return shortly to fit the new liners to both cylinders, we can then machine the new piston heads to suit and fit them to the existing rods. Once this has been done, the repaired front end can finally be reassembled. Much work has gone on with cleaning and painting of the frames, refurb of the radial truck assembly, buffers, drawgear and sandboxes etc.. Bunker has been refitted to the frames and being worked on currently along with the water balance pipes. Side tanks to be looked at shortly including plans to reinstate the proper water gauge rather than the brass taps which she has run with during the previous 'ticket'.

    Meanwhile the boiler has been inspected and we are currently discussing the work required with contractors. We would hope to make this the project for 2017, with a view to getting the engine back into steam during 2018 but this will be very dependent upon funds.
     
  12. Nigel Clark

    Nigel Clark Member Loco Owner

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    Latest press release from the 6695 Loco Group:

    On Friday 26 January 2018, 6695's boiler was moved from Williton to The Flour Mill workshops in the Forest of Dean for the overhaul to commence. Work will begin straightaway to remove the foundation ring and wasted steel plate from the firebox outer wrapper. The overhaul will include any necessary repairs to the foundation ring, replacement of wasted steel platework on the outer firebox, attention to the laps on the inner copper firebox, replacement of steel side stays as necessary, replacement of crown stays as necessary, replacement of lap rivets and patch screws on inner firebox, re-riveting of safety valve mounting pad, repair/reclamation of internal steam pipes, new tubes and superheater elements (current elements are all ex BR), and any other work found necessary as we progress with the overhaul. This list is by no means exhaustive but gives an idea of the work required to put this boiler back into a suitable condition for a further 10 years service. Now that work has commenced we need to ensure sufficient funds are available for the overhaul to steadily progress without interruption. Work on the rest of the engine continues at Williton by Group volunteers and with the ongoing assistance of WS Restoration. Please help us to complete this overhaul and get 6695 into service on the WSR sooner rather than later. If you would like to support us, please contact us by e mail at Locomotive6695@btinternet.com for details of share applications, sponsorship of parts, donations/loans etc., or alternatively visit our 6695 Loco Group Facebook page."
     

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