June 2004 Progress report
article by: John McMillan
As usual, progress has been made on several fronts, some it
involving re-visiting "old haunts", like the cab and the drain-cock
valves.
Having given the impression in the last report that the cab was
almost finished, the fitting of the window frames has proved that
it isn't finished yet! As expected, we've had to make alterations
to the cab frame so that the window frames will locate nicely in
position. It is evident that our window frame castings must be for
a slightly different shape of cab (no two cabs appear to be
identical!), and small spacers will be needed to get the top rail
of the frames to bolt up securely to the cab structure. The next
task will be to try the sliding panels in place to ensure that they
operate properly, and more 'tweaking' is anticipated. Finishing
touches are being made to the sliding panels, then the whole lot
will come out again for the glass to be fitted. When you see the
driver sitting at the controls, nonchalantly leaning out of the cab
window, just spare a thought for the phenomenal amount of work that
has gone into assembling such an insignificant part of the
locomotive.
A start has been made on putting back some of the pipe-work and
brackets which were removed from the boiler back-head when the cab
was taken away, and we are taking the opportunity to check and
re-make some of the pipe flange joints where flanges mate up with a
metal-to-metal joint. We cannot use gaskets owing to the risk of
failure which would release steam at full boiler pressure into the
cab. Once we have replaced the pipe-work to where we left off, the
remaining pipe runs for the boiler back-head will be made up to
complete this part of the restoration.
The injector cones have been hand-fettled and await fitting in
the injector bodies; except for one small flap valve, a drawing of
which remains elusive, the injectors will be complete.
Whilst checking the alignment of the boiler crinolines in
relation to the cab and pipe-work on the driver's side, careful
measurement showed that the boiler wasn't located quite centrally
on the loco chassis. Almost single handedly, Maurice Hastie, one of
our indefatigable workers, managed to move the boiler with jacks
the required 3/16" (or 5mm if you prefer), to the left. The boiler
weighs a mere 22 TONS; have we discovered our own Mister
Universe?
After some time we have resumed work on the fire grate, and have
machined the rocking support bars to allow the ends to rotate
freely in the support housings, enabling the fireman to dispose of
the remnants of the fire more easily at the end of the day.
Other parts of the locomotive receiving attention are the
cylinder drain cock valves which have now been finished, and good
progress has been made on the covers surrounding the main steam
pipes which run from the smoke-box to the valve chests. These are
the first sections of the final outer cover of the loco to be made,
and as this is specialist work, we have been fortunate in securing
the services of an experienced engineer in this field, who produced
much of the boiler cladding for newly-restored 34028 "Eddystone",
now running on the Swanage Railway.
Finally, just to show that the tender hasn't been forgotten, we
have completed the shutoff valve that allows the water filters to
be cleaned without draining the tender tank. Machining of the large
tender water sump has now begun. On completion, fitting of the
brake rigging will be the one major task remaining on the
tender.