
November 2011 Progress report
article by: Chris Blake
This month I have plenty to tell you on the progress carried out
to the frames and other important developments. Where to start?
The major news is that the frames for the Loco have now been
realigned and straightened using a combination of techniques. As
can be seen from the "before" photo, the top section had become
curved (bent?) from true and you may remember we also had to
rebuild wasted metal work. From here it was necessary to brace and
pull the two sides by application of heat and by the use of various
spreaders and connecting rods. The frames then needed to be
de-stressed in order to hold the new corrected form. I understand
that this was carried out by the use of pneumatic hammers in such a
way that as the steel work cooled it "persuaded" the steel to hold
this new shape without cooling back to the original distorted one.
A skilled hand I think was required to achieve this feat. See
"after" photo.
Plenty of preparation work has been carried out on dismantled
parts, to include full removal of paint and rust then applying
primer and undercoats ready for assembly later on. Not a glamorous
job but one that is needed to ensure that the Loco has a complete
overhaul to make certain that it survives for many years to come.
One such part included the steam brake assembly where it was
necessary to re-bush the bearings and clean the valve rings. The
cab has had various rusted and generally poor metal work replaced
and is now starting to look like a cab again.
A fiddly job was carried out on the oil strainers to the
Silverton mechanical lubricator, as these were worn and required
new filters to be made up and soldered together. (See photo.) The
lubricator itself has also been overhauled which consists of a
cast-iron box which holds the oil reservoir. Inside this there are
a number of independent oil pumps which provide a pressure fed
supply to various parts of the loco, such as the axle
boxes.
Following a yard shunt in preparation for other work onsite, the
Tender has now been reunited to the same "road" in the shed as the
loco. Great to see but another job still to be carried out! See
photo of the tender not yet ready for the Toddington line.
It is great to see that more volunteers are coming forward to
help out on this restoration and in addition to the Wednesday gang
we now have an active weekend group. They will be contributing to
this project and one of our members will be project managing
and co-ordinating this to ensure best use can be made of all our
time and effort.