Push Gathers Steam to Restore a Historic Loco
J515 Updates from the Seymour Railway Heritage Centre
Rare Arnott's biscuit van restored
WEEK COMMENCING 8 April 2019
The AWS battery box lid has suffered from corrosion between the lower mounting strap and the surface of the lid. The strap was removed and the corrosion cleaned out. The lid was not flat so was carefully pressed straight and sections of steel tacked to the back of the lid to keep it straight. It was taken to contractors this week for weld repair and for the strap to be put back on.
The coupling rod bush drawings have now come back from the CME’s office approved. The order has now been placed with contractors for machining and whitemetalling. The castings, some of which have seen some pre-machining by our volunteers, were taken to the subcontractors this week.
The tender vestibule top arch has now been drilled for the handrail that curves round the arch. The knobs look like they can be reused but the rail is corroded through in places and will be renewed. The arch has been painted and bolted in for the last time. The boiler-making team have now moved on to the renewal of the rear top left platework. A new tender floor support bracket has been welded in to the front of the tender tank.
The new vestibule arch piece is in place. The plate behind and below the top edge beading has also been renewed at this overhaul
The pipes from the cylinder mechanical lubricator run to the atomisers. The atomisers are mounted on brackets on the smokebox, which is not yet
The new tender lower brake hanger pin next to the old. The new one has a head as shown on the LNER drawing. Made by a volunteer member of the engineering team
in place so some brackets have been made to mount the atomisers in their approximate position, and this week the pipes were run in.
There is work to do on supporting some of the pipework and at the atomisers new ends will be required for the pipes. Meanwhile on the tender, the routing of the air pipes continues.
The atomisers are mounted on temporary brackets so that pipework can be ran to them
The tender brake hangers are now all reamed for their pins and drilled for grease nipples. The new bottom pin was finished. Work continues on boring the holes in the tender frames to mount the trailing hangers. The right side is now completed. The old oil holes in some of the tender brake hangers have been plug welded and dressed. The hangers have been cleaned of all the swarf from reaming and drilling.
The new plates for the bottom of the tender spring hangers were collected from the suppliers this week. The flame-cut edges were dressed with a grinder. The tender frames back to back have been remeasured, now that we have tight hornstays and these dimensions will be used to specify the rest of the axlebox bearings. The leading set are in the process of being metalled at contractors.
Another section of tender plate has been cut out for renewal
Work continues on overhauling the cylinder relief valves, with five of the six now completed. The right leading crankpin cap has now been fitted to the tolerances shown on the BR drawing. The left-hand cap needs a few thou taking off.
The middle crankpin has seen further work with the first lap of filing completed and polished to remove file marks. Further filing followed careful measurement. After this is polished and finally checked, work will begin on finishing the corner radii.
The tender rear coupling hook has now been put in the dragbox for the last time. The safety valves have been assembled with their new springs and more NDT work has been carried out on the valve guides.
Most of the new lower slidebar shims have been cut out and drilled and have been finished to size on the Churchill surface grinder. The existing ones that had sufficient thickness have been ground to size. Work continues on specifying the replacement slidebar bolts.
New slidebar shims are being precision ground
At Llangollen the boiler is now full of water as work continues on final checking for leaks. The date of the hydraulic test has been pencilled in for later this month.
This is the 39th update—you can read all the previous instalments here.
This article first appeared on blog.railwaymuseum.org.uk
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