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Reefsteamers Depot News Report
- SATURDAY, 02 February 2008 -
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Introduction :
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Wow – this one turned out to be a long super-deluxe Class 23
tender-sized edition. I’ve included some photos from two weeks ago to bring
you up to date on the Class 15F No.3052 ‘Avril’ tender welding \
reinforcement project. This project has been needed on this engine for at
least four years now … and now after the death of many welding rods, it’s
finally done!
The extension of the white metal casting for the Class 15CA
No.2056 ‘Dorothy’ Bogie bearing was also an interesting sequence to describe.
Hence there is another ‘how to build a locomotive in 10 easy steps’ type article
– starring Andrew King. Aiden Mc. Carthy did a mains-water pressure
hydraulic test on the boiler Class 15F No.3016 ‘Gerda’, with Lee Gates assisting.
There was a ‘false leak’ as the boiler washout plugs hadn’t been tightened on
the back plate after the recent boiler washout was completed – and you could
hear the pressurized water squirting into the cab. When these errant plugs
were tightened, the left hand clack valve and a vent valve were found to be
leaking. These were re-seated and weren’t entirely unexpected leaks. You
normally have to reseat a valve or too when pressure testing a boiler. However,
there’s a nasty surprise in the mix too, as there’s another leak under the
firebox cladding – looks like a stay has failed. This letter is already too
long for the website, so you’ll see the pics and read of the misdemeanors of
the boiler hydro boys when we tear into No.3016 to find that leak at the
upper left of the firebox.
We had five and a half guys out on the coaches today, so
there’s a lot to describe – but that’s good, as we’re always behind on our
coach work. The ‘half’ was Fred Sewell who is recovering from an operation
to remove a tumour from a kidney. (Thankfully, non-malignant.) He was well
enough to potter around the power car and put fresh stocker son certain
vehicles – but trying to lift a starter battery for the train’s generator van
finished him off. Fred WAS told to take it easy but he can be a teeny bit
stubborn at times…
Anyway – I trust that you enjoy reading this somewhat lengthy
report.
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PROJECT : Class 15F No.3052 Tender Brace Welding :
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FP01 – Welding at the top deck. The
simple looking welding actually took the whole day in preparation and
planning. The finished job looks close to original but is actually stronger
than the original design.
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This was perhaps the most urgent project of the day. As a steam
club, we are anxious to get David Shepherd’s Class 15F No.3052 ‘Avril’ back
on the high irons and into revenue earning service on behalf of Steam in
Action. However, we also need extra power as our class 25(NC) No.3472
‘Elize’ is the only locomotive that we have that’s currently fit for main
line use. (Especially as Class 15F No.3016 ‘Gerda’ has sprung a leak which
will delay boiler certification.) ‘Avril’ has most of a three year boiler
certificate left to go, combined with a newly thoroughly cleaned boiler and
it’s a shame not to use that combo. In fact, the locomotive had two teams
working on her today, with a painting team working in tandem with the tender
team.
At first glance, there didn’t seem to be that much
remaining to be done on the tender. But ample areas of rusty metal and a
bent rear scuttle plate delayed the proceedings. By the end of a hard day’s
welding and grinding, this old tender is now stronger than it was when it was
originally made. And considering these aren’t exactly delicate pieces of
equipment to begin with, that is really saying something! By the end of the
day, Dawie was totally sick of welding, Shaun’s brain slightly addled with
the toxic welding fumes, the grinding disks were much reduced in diameter and
the tender deck was generously scattered with burnt out ends of welding rod.
This work actually started two weeks ago with the
installation of the vertical side bracing on the tender coal hopper walls.
There isn’t a news letter covering that work, ‘cuz this old keyboard puncher
was busy working on an article for Class 25(NC) No.3488 ‘Enchantress’ as well
as working on a convoluted building project for my employer. But to get you
up to track-speed, here are some photos from two weeks ago.
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U01 – Patrick Ackerman uses a ‘bread
slicer’ to cut the vertical brace irons to
length. Fortunately, eight of the 12 side braces are of the same length so
marking and cutting was easy.
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U02 – A nice neat stack of new angles
ready on the footplate floor. The hammer and chisel are for de-scaling of
welds.
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U03 – Some rather sharp web braces
that needed some careful handling
as not to slice and dice the operator.
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The welding job went with very little trouble apart from
the occasional rocky start when trying to find decent welding earth points. You
could hear the frustrated tapping from the workshop bay. The problem was
that the support braces had gone rusty in storage. (Pic U02 above) However,
the lower angle of the webs was slightly too deep and they all had to be cut
down. The raw cut triangles of 6mm thick mild steel needed some careful
handling with sharp edges and a lethal looking point! (Pic U03 above) The
guys carefully fitted one, and then Patrick clamped it in turn to the rest of
the stock and used it as a template. (Pic U04 below) Of course, this would only
work if the sloping coal hopper ramps were straight and consistent. It turns
out that the old tender is still straight and true and the cut down webs all
fit. North British knew how to build good stuff.
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U04 – A tender-brace sandwich.
The top triangular web has been cut
down to suit the tender and is being
used as a template for the other webs.
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U05 – The vertical braces are being
welded in turn. Notice how the work at this level involves bracing oneself
on a 45 degree slope while welding braces. Appropriate.
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U06 – A new set of braces in the coal
hopper. This entire job was done with portable inverter welders, one of
which is visible in the picture.
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Pic U06 above shows the progressing of the side braces down
the right side of the tender. Patrick took care to chamfer off the sharp
edges of the triangular webs so that any future coal trimmers working at this
level don’t get punctured. When eight full length braces were installed,
four to a side, the first of the two cross breams was installed and welded in
– with some tapping to get it level. The first beam is simply a span across
the top of the tender and is intended to help prevent the sides from bowing
out. The second, lower beam was placed in a position to be used for a chain
hoist to pull the rear scuttle panel back into alignment – you’ll read about
this in the next section.
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U07 – Shaun (left) and Patrick (Right)
installing the second cross bream.
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U08 – One of the freshly welded coal
deck braces. You’re facing forward and can see the next brace descending
into the coal hopper.
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U09 – The cut out in the rear scuttle
panel, facing towards the rear. That dark square object seen through the
aperture is the water chute.
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New covers were made for the stoker driver universal joint
(Pic U10 below) and the Stoker Gearbox access hatch. (Pic U11 below) The
universal joint cover was fitted with a new pair of half-barrel hinges, while
the gearbox cover was welded to the existing, intact hinge. However, the
time saved on using the existing hinge was lost in making a double-angled
cover panel for the corner of the coal hopper. It was fabricated on the 50
ton press, using a crow bar as a mandrel in a pre-bent corner.
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U10 – Welding the hinges onto a new
inspection plate. This plate is normally hidden, buried under coal, and
provides access to a universal joint in the stoker drive.
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U11 – ‘The Smudge’ is hunkered down
and is testing whether the new gearbox access cover opens correctly. Notice
a new brace welded in across the stoker trough.
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U12 – The gearbox cover plate, with an
extra coal shedding overhang, sits snugly on the compound corner plate.
That open channel in front is the stoker trough.
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And now, onto this week’s
work!
One of the jobs that had to be checked from the previous
week’s work was the extension of the width of the stoker trough covers. You
can see the extension welded onto the edge of the plate in Pic T01. The
original plates were found to be slightly too narrow and unfortunately, the incorrect
dimensions were duplicated onto the new plates when they were cut. The unmodified
new plates felt borderline ready to drop out of their slots and into the
stoker trough – which would make the fireman’s job really interesting.
Actually, they were rotating and the diagonally opposite corners were jamming
and wedging in the longitudinal slots. Simply preventing the plates from
rotating in the slots quite as much really eased their operation and allows
less space for coal to jam in the guide rails too.
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T01 – Lee points to a 10mm square
extension welded onto the new stoker tough cover plates. That slot that is
being pointed out is where the
plates are installed into their rails
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T02 – The use of a chain hoist as a
puller
to persuade the bowed out scuttle plate towards the vertical again. Notice
the new welded patch in the rear scuttle plate.
(Compare this to Pic U09 earlier
in the ‘catch up’ section.)
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T03 – A general view facing forward
while the non-standard cross braces were being installed two weeks ago.
The lower brace is the one that
was used for the block and tackle.
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The new stoker trough plates are smooth, rather than the
checker-plate stamping on the old plates. (This should make them easier to
withdraw.) However, the holes still need to be drilled to suit the head of
the round pricker bar. The new plates are easy enough to move around in an
empty tender, an empty trough and clean guide rails - but a much more
positive grip will be required when shuffling the plates forward from under the
leading edge of a ramp of coal.
The first task concerning the brace welding was to force
the rear scuttle plate forward. It’s been bent through years of overhead
coaling and the circular section top beading has delaminated. You can see
the bend in the foreground of Pic T03 above. Furthermore, the original two scuttle
plate braces were totally eaten away with corrosion and years of coal trimmer
shovel blows. The tender coal hopper now has two non standard beams welded right
across to help brace the sides from bulging out at the top. Pic T03 shows
the braces being installed two weeks ago. The rearmost beam was mounted
deliberately lower than the front beam, which almost at the top of the
hopper. The lower beam is at the correct angle to attach a block and tackle
and to provide an anchor point to pull the scuttle plate forward. (Pic T02
above) This was done gently and evenly before the braces were fitted and
throughout the day’s welding, the host was shifted and tightened as
appropriate to pull the bent plate up against the new 90 degree braces.
The partially uncoupled water chute lid was removed and
laid aside on the top of the tender for future work. (Pic T04 below) It
looks rough with much surface rust but is, in fact, in almost perfect
condition … straight, with intact bracing and hinge barrels. The failure
happened between the fixed hinge parts and the chute sides. The water chute thus
stood half open the whole day and the guys were storing their tools on the
second, intact lid, and even using it as a workbench. I was just waiting to
hear the cussing as a nudged tool, perhaps a spanner or a tape measure, went
tumbling down into the open, waiting, empty tender tank. Fortunately,
nothing fell down there and No.3052 ‘Avril’ will not be running with built in
rattles from mysterious rusting artifacts drifting in her water supply.
The scuttle plate was patched 2 weeks ago on Sunday 27 January.
But the welding still needed to be ground down flush. This was done by Dawie
Viljoen at first and was later taken over by ‘Nippies’ Juan. (Pic T05
below.)
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T04 – The removed, rusty but decent water
chute lid resting on top of the tender tank. Notice the intact hinge loops
and braces.
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T05 – The new patch in the rear
scuttle plate had its inboard welds ground flush. Dawie is actually
grinding down the vertical weld flash where the old braces once were.
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T06 – A welded foot plate for a corner
brace. It was decided to put the new diagonal braces in the original
positions – but we didn’t want to weld onto the ground down welds of the
old braces. Notice how worn down the wheel is on the angle grinder!
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The new braces were to be fitted with footing plates,
whereas the original braces were welded directly to the horizontal deck plate
above the water tank. But there was the problem of putting a vertical triangular
brace on top of the original welds. Although the remnants of the welds had
been ground down – it’s unwise to weld on top of welds, which results in a
brittle joint. Moreover, it’s unlikely that you’d get an absolutely straight
joint between the new steel and the old weld – resulting in pockets and weak
points in the new weld. So Dawie had to weld down a pair of footer plates to
cover the existing, ground down welding ‘scars’. (Pic T06 above) What was
interesting about this little job was that the plates were beaten slightly
convex. Thus they formed shallow curved bridges over the protruding original
welds and presented their edges smooth against the deck plate. (A truly flat
plate would stand proud of the deck.) I had to climb on the tender several
times to work our what our Dawie-Dude was doing – but it was well worth it to
see him beating the plates with a pry bar against the railway tracks, and
chasing the skittering plate after each blow. Because the plates are
slightly convex, Dawie took care to weld the open ends completely closed as
well to eliminate any crevices where water might sneak in through capillary
action and set up corrosion under the braces. (Pic T06 above.)
An extra task that had come up was the patching of the ends
of the new patch plate. (General view in Pic T02 above) The long top and
lower edges were able to be cut back to sound, solid (if stubbornly bent) metal,
but the ends weren’t. And it’s hard to weld a plate flush with heavy gauge
rusty lace. (Pic T07 below) Short vertical patches were welded over both
the ends of the main patch plate. They fill up the holes and brace the edges
of the weak weld on the ends of the main patch – and are invisible from
outside. (Pic T08 below)
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T07 – A view from the outside of the
scuttle plate shows the rust holes at the ends of the new patch plate,
helpfully back-lighted by Dawie’s welding arc. That object to the right is
the front left corner of the water chute.
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T08 – One of the two extra vertical patches
on the end of the main patch to fix up the remaining rust holes. Notice
the existing bolted patch to the left.
Even though it’s much harder work,
we much prefer to weld, as it eliminates crevices and extra bolt heads
visible outside the tender.
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T09 – All the elements of a successful
weld – a young training boiler maker, clean metal, a hoist to pull the work
piece straight, a hammer for chipping work and a set of knuckles getting artificially
suntanned.
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The new triangular braces are slightly longer than the
originals. They were initially welded on the short horizontal edge and
tacked at the lower rear. Then the chain hoist’s hook was uncoupled and
moved to just over the brace and tightened up again to pull the bent scuttle
plate inwards to lie in contact with the new triangular web. You can see a
shuffled hook in Pic T09 above. In this pic, Dawie is tacking in the footer
edge and you can still see the vertical gap at the back of the web. Those
gaps gradually being pulled closed as the welding progresses upwards, means
that the new webs are already under tension – which should help the scuttle
plate from being bent any further than it is. Luckily, we have good coal
scoop operators but sometimes little accidents do happen.
Once the two triangular braces (webs) had been installed (Pic T10 below), it was time to use the new bracing to advantage, and to
bully the bent out section of the scuttle plate inwards between the newly
welded support. It was a good test of Dawie’s fresh welding and nothing
parted. (Pic T11 below) Eventually the Ackerman special was brought out and
some Reefsteamers style panel beating ensued – with Shaun acting as the
dolly. (Pic T12 below) The hammering wasn’t to bend the plate inwards, but
rather to close the delaminating top bead, which was holding the warp. It
was amusing to see the rust, dust, welding rod ends and coal dust all jumping
up in time to the hammer blows – from the rear of the tender’s water tank
right up to the shovel plate at the cab.
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T10 – A finished brace. It will look
a lot better once cleaned up and painted … promise! You can see how it had
to be fitted to the main patch. The vertical patch for the corroded end
section is visible to the right.
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T11 – Using the hoist to pull in the
bowed center plate. This photo shows just how distorted the scuttle plate
originally was.
Yes – Dawie had no socks on and
learnt the joy of having grinding
sparks sneaking into his safety shoes.
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T12 – Some gentle hammer and dolly
action to beat the plate into place. That top beading is warped and
delaminated, and was holding the panel bent.
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After this rather crude operation, horizontal braces were
welded into the corners – being a definite improvement over the original as
no braces were originally fitted. (Pic T13 below) But first, the rounded
RHS end of the scuttle plate had to be pulled towards the back of the tender
as it had moved inboard while the center of the plate was straightened in the
previous, quite literally, panel beating operation. So the chain hoist was
uncoupled, humped backwards over the scuttle plate, and connected to the
lifting hooks already built into the top of the water tank. The warped end
was pulled towards the rear of the tender before the plate could be welded
in.
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T13 – Testing a corner brace for fit.
The front of the tender is to the left, so you can see the hook is now pulling
the scuttle panel towards the rear.
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T14 – A finished corner plate that
reinforces that half century old corner. These were not originally
fitted.
Notice that it is welded to the
angle iron perimeter frame and not
to the rusty patch panel below.
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T15 – An almost abstract shot of Chief
Engineer Andrew King (RHS) inspecting and approving of the work in the
stoker trough. They’re actually inspecting the new stoker gearbox access
cover.
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Andrew King was called in to check the work and pass
approval, which he did. (Pic T15 above) The tender interior still needs to
be wire brushed and painted with oxide red. The water chute’s lid needs to
be reattached. The stoker trough plates need to have pilling holes drilled
through them. The tender steps and the shovel plates need to be labeled with
high tension warning signs. (Overhead cantenerary) and the brakes need
adjusting. But this tender should be ready to be filled with coal again by
early Saturday Morning, 10 February, for this engine’s first revenue earning
run under the flag of Steam in Action.
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PROJECT : Class 15CA Bogie Bearing Casting :
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When our Class 15CA No.2056 ‘Dorothy’ came limping home
from Magaliesburg with a hot foot several weeks ago, we ended up stripping
the entire bogie to take advantage of the repair job and see if there were any
other problems. It turns out there was, as the bogie springs were found to
be mismatched. But today, Andrew King got stuck into fixing up some of the
obvious damage. The two piece Bogie bearings are of white metal. The
carrier (outer) bearing also comprises of the thrust face that bears behind
the wheel. This thrust face had been damaged and displayed evidence of
melting. Pic B01 shows the original bearing condition.
The repair job would involve creating a mould to suit that
horseshoe shaped profile and then melting some fresh white metal, and casting
a new raw surface. ‘Building up the bearing’ as if were. Andrew had already
been scrounging for scrap sheet metal to make himself a custom fitted mould.
It took quite a bit of ingenuity to take a mould to fit that profile and my
respect for Andrew went up a few notches when I saw the results. The job
started on top of the tender of the Class 15F No.3052 ‘Avril’. (Pic B02 below)
The reason for this is quite prosaic – that’s where all the angle grinders
and extension cords were, within easy reach of the tender boys. And the
typical tapered water hopper makes a handy knee-high work bench.
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B01 – The damaged bogie axle bearing
and the insert in a barrow. That top face that looks like the fifth wheel
on an articulated truck is actually the thrust face that bears behind the
wheels.
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B02 – The first cuts on the bearing
mould. Andrew grinds off the extra lips and flanges to reduce this back
plate to a single sheet. He’s standing on a tender and using a water
hopper as a workbench.
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B03 – Using a vice and a hydrant pipe
coupling as a mandrel to form the semi-circular axle profile section of the
mould.
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Andrew then disappeared for a while, leaving his work
pieces next to ‘Avril’. He was on a scrounge for a circular object that
matches the diameter of the half-round axle impression in the bearing. After
several choices, he found a hydrant bell coupling that would do the forming
job a treat. (Pic B03 above) So the center part of the mould was wrapped
around that pipe and seated home in a vice. This had to be done without
creasing the metal.
Getting the semi-circle located was easy enough. Care had
to be taken to get the corners at 90 degrees; otherwise the corners would be
cast curved and waste much time in grinding to square up the bearings. So
here in Pic B04, you see the bearing-boss doing blacksmith work, tapping the
corners square against the ‘Top Shed’ anvil. The straight sides of the
bearing slots had to be put in next. This would be more critical as it would
be hard to make a clean adjustment should the width work out wrong, or the
semi-circle ends up off center. Naturally, this required many test fits as
the mould was taking shape. You can see a test fit in progress in Pic B05,
below, and the mould is starting to look like a compound archway, or framing
for a door with a Victorian semi circular fanlight above. The fussing and
the many test fits paid off as the inner mould fitted perfectly on the first
attempt – but that those second corners were troublesome to clean up as the
curved section in the section obstructed access in the vice.
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B04 – Traditional engineering skills –
Andrew King knuckled down to using an
anvil as a back-piece to get the bearing mould’s corners clean and
straight.
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B05 – Andrew is test fitting what is
becoming a complicated looking mould. Notice that he has managed to slide
it into the axle recess.
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B06 – Patrick’s first job of the day –
hold down the moulds while Andrew cuts off the excess length against the
tender’s water chute.
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Once The King had the mould sliding into the bearing to his
satisfaction, it was time to cut off the excess length of the metal strip.
The pieces to be cut off are in Andrew’s hands in pic B05 above. Once again all
the power tools were available at the tender top and Patrick Ackerman, who’d
just arrived, assisted in holding this convoluted strip against the water
chute while Andrew fired up the grinder. (Pic B06 above) Luckily the guys
had brought a good stock of disks with them, so the grinder was running with
a fresh disk and thus made a clean cut.
With the inner mould cut to shape, Andrew then sourced a
similar steel plate from scrap and bent it loosely to fit the outboard curved
profile. He assembled the mould with some wire, and a pair of G clamps. (Pic B07 below) The steel strips were left dry – no spray n’ cook and no
margarine was used.
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B07 – The general layout of the
mould. You can just see the circumferential wire on the outside. This picture
was taken after the first pouring, hence the shiny looking top surface.
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B08 – Treat food fit for a Cylon.
Lee holds a chocolate bar-like
slab of ‘Fry’ white metal.
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B09 – The first pass of the second
casting. Andrew is heating up the freshly poured and already cooling
surface to ready it to accept more white metal.
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The casting was interesting to watch. The white metal
stock comes in large slabs that look like metallic chocolate bars (Pic B08
above), and appropriately enough, in branded as ‘Fry’. (Older South Africans
will remember ‘Fry’s’ chocolate.) One of the characteristic of white metal
is its low melting point and malleability. So we didn’t need an oven to do
our casting. An acetylene torch would provide enough spot heat to melt the white
metal down to liquid form.
The casting was done in two stages. Firstly the existing
surface had to be heated up to semi-liquid state again. (Pic B09 above) This
is partially to bond the two castings together but also to prevent the
soon-to-be cast white metal solidifying almost instantly upon contact with
the cold large casting. (Heat sinking.) Then the hustle was on to get some
fresh white metal down ‘on the deck’ before the working surface cooled down
again. Pic B10 below shows a fresh slab of white metal being put to the
torch while Pic B11 shows the slow rhythmic pouring process. Because of the
large mass of the bearing casting absorbing the heat, the fresh metal cooled
down and solidified quickly and it was only a matter of minutes before the
mould could be knocked apart. However, it was still too hot to be dismantled
with bare hands. One of the interesting points that Andrew brought up from
his experience is that it would have been better to have made the mould fabricated
from rusty steel plates and sheets – white metal doesn’t stick to rust.
Nevertheless, he managed to get his contraption dismantled with less mess
than taking the paper wrapper from a sticky cupcake. (Pic B12 below) You
could see where the white paint had burnt and melted into the casting but
that’s immaterial.
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B10 – The fry bar begins to melt in
the corner…
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B11 – …and the fresh melted liquid white
metal is allowed to level out under gravity.
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B12 - A 15CA bogie bearing with a
newly
cast thrust face. You can see the partially chewed ‘Fry’ bar on the right.
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The two bearings had to be matched again. The inner
bearing is actually a trough like affair that normally holds the oiled woolen
waste as a lube packing. Andrew and Aiden took it in turns to grind and fit
the two bearings together again. Although the two workmen properly wore
goggles, the grinding was still hazardous to those walking by. The metal is
too soft to produce sparks – but the invisible flying fragments can still be
felt and get in eyes. It took a lot of fettling to get the bearings to fit together
– with great care and frequent checking as it is much easier to take metal
off than to put it back on again.
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B13 – A ‘Fry’ white metal bar that’s
been put aside after a ‘nibble.’
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B14 – Aiden gets down to grinding the
side flanges. Notice something funny in this pic? (Besides Aiden, that
is?)
White metal doesn’t shower sparks while being ground.
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B15 – Test fitting the inner bearing.
The assembly is upside down and you can see that it forms a trough for the
oil packing that rubs against the turning axle.
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SIA PROJECT : Painting of Class 15F No.3052 ‘Avril’ :
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FP02 – A grand old lady faces forward
into a new and bright future.
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Avril was obviously well loved in her time of storage and
had many of her details and salient features painted up. And amongst those cosmetic
embellishments, she had ‘bull’s eye’ wheels – with red axle spots and white
hub rings. The adopted Reefsteamers standard is black wheels and white rims,
with the walkway rails and the smoke deflectors highlighted in white. No
offence is intended to the person who originally painted this engine. But we
try to paint our engines in a simple fashion for consistency in appearance
and to be as close to the usual SAR colour schemes as possible. Quite apart
from this, bright contrasting colours get dirty quickly. I’ve seen freshly
painted bogie wheels get fouled up to a dark rusty brown within less than 10
minutes on an engine that was steamed up after standing for a while, staining
the paint with vapour-bourne rust from the cylinders.
Following are some photos of the details of painting. This
engine is running for the SANRASM Steam Museum on Sunday, and will debut with
fresh makeup on the run. I will be sure to get some nice pics of this engine
to share with you then – especially with a new camera tripod that I’ve just
brought and am itching to try out in the field.
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P01 – A freshly painted buffer beam
and
cow puncher. Black, white and red are
just so natural as steam train colours.
Note the new number sticker.
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P02 – Hey, if you’ve got it, flaunt
it. Looking like a well detailed ready-to-run LGB scale model train just
purchased from a hobby shop – just look at those drivers.
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P03 – Picasso de Necker paints up the
cylinders. You’ll notice these are black as apposed to the usual ‘shiny
ones’ on our original engines. This is because these cover sheets are mild
steel, not stainless, and will rust without paint.
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So Class 15F No.3052 ‘Avril’ had some new makeup applied –
and glittering toe nails rendered back to natural colour. Her smoke box and
buffer beam were painted last week. This week was the turn of the wheels,
the valve motion hangars, tender side frames and the tender wheels.
And she’s looking BEAUTIFUL! (This admittedly, is not hard
for our wonderful old steamers.)
Observant readers will notice that the frontspiece photo
for this section shows that the locomotive number is missing from the buffer
beam. The reason is simple; Uncle Fred Sewell hasn’t had the stickers made
up yet. He’s our laminated sticker man and will either make up a fresh set for
No.3052– or cut a set of appropriate digits from his existing strip stock.
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P04 – The driver’s side gauges and
regulator quadrant as they originally appeared on a red back plate when we
moved the engine from Ficksburg. (From left to right – Brake Vacuum –
Steam chest pressure – Speedometer)
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P05 – The painted fireman’s controls.
Across the center – the black regulator cross-shaft. The stoker jets,
steam heat and stoker steam pressure gauges look neat against a freshly
painted gauge back plate.
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P06 – Juan Potter mixes up some sticky
black potion. You can see by the muscles bunching in his arm that it has
settled a bit.
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The cab was painted as well. The gauge back plates and the
regulator mechanism had been highlighted in red. (Pic P04 above) These were
all repainted to glossy black. Not only is it standardized but also
emphasizes the shiny brass and hides the oil streaks! (Pic P05 above) Juan
replaced the driver’s seat with a spare one from our Cache. The original
seat was loose and the vinyl starting to break up. Note the original
SAR&H green.
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P07 – The driver’s seat was pretty far
gone with cracked vinyl and
loose mountings. ‘Nippies’ Juan
was put to the task of replacing the seat with a much better one from
spares.
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P08 – The replacement driver’s seat.
It has to survive being sat on by certain high axle-load drivers in
service. Let’s hope it’s up to the strain.
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P09 – Avril still has her late SAR&H
era double sealed-beam headlight. We’ll probably ‘retrograde’ it later with
a classic single lens ‘barrel’ light which isn’t quite so efficient, but is
far more photogenic.
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PROJECT : Coach Maintenance:
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FP03 – Today’s assignment. Tony ‘Shaky’
King
conducts the shunting of a coach and the power
van as they trundle around past the ’Top Shed.’
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The coach work started with some morning shunting with two
blocks of cars being moved. The carriage and wagon gang were set loose on
the old lounge car, a day sitter and a tanker. Fred Sewell pottered around
in the Power Van doing light duties while recovering from a Kidney Operation.
Tony ‘Shaky’ King has taken on the project of cleaning all
the vacuum brake cylinder rods on our rolling stock. This simple sounding
job isn’t as easy as it seems. These rods are chrome plated and very exposed
dangling under the wagon frames. If you use too aggressive grade sandpaper
on the rods, you will damage the chrome plating and ensure corrosion further
down the line. Too fine a grain a paper, you waste time and polish up the
dirt. An additional factor is that these are vacuum cylinders, which means
that loose dirt and corrosion will tend be drawn inwards into the cylinders
through less than perfect glands. (It is actually a known weak point of
vacuum brake systems in general – they tend to suck in contaminates through
leaks and gaps. More commonly encountered compressed air or hydraulic oil
cylinders tend to move the contaminates away or scrape them off at the
seals.
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C01 – Tony King gets comfy in the
generous semi-shaded space under one of the water tankers and cleans the
brake cylinder rods. He’s using wet n’ dry emery and it’s about his third
selection of grit.
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C02 – Here’s another piston rod
cleaning technique (on a coach), using lengths of hemp as rough fibred
dental floss to cut through the initial layers of crud. (And you don’t
have to bend over so far either.)
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C03 – Here’s a custom fitted floor
patch in coach No.25069. For a while the floors will look patchy but these
can be tiled or wrapped over when the floors are re-covered.
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Tony used wet and dry paper, and on one occasion, soaked hemp
(Pic C02 above) to provide some lubrication of the cleaning work. He found
thinners and benzene to be reasonably effective in dissolving the mainly petroleum-based
residue. But the results were too dry once the solvents had evaporated.
Paraffin was finally adopted as the cleaning solution, which, while not as powerful
in dissolving the crud, leaves a nice protective rust-preventing film on
those chrome plated rods.
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C04 – Fred has been re-applying the
Reefsteamers brand stickers (Here, on an auxiliary water tanker). These
were scraped off on the demands of hard-core photographers for more
authentic looking trains during our 2007 Dave Rogers tour.
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C05 – A common problem on the coaches
are sticky and misaligned slam-latches. ‘Sergeant’ Willie had carefully
worked to open this one up without distorting the recessed back plate.
Nearly all these slam-latches need shimming and lubrication.
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C06 – This is normally one of the end
coaches, and has fire hoses, a set of markers and a back board to block the
gangway. We’re looking for a gangway door to match this one– with
glazing. The existing doors have no glazing and are badly warped.
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The main coach project for today was the installation of
vestibule windows in the lounge car. The doors had originally been fitted
with windows but had been blanked off over the years. We could live with
running a coach with a darker vestibule, but as the lounge car is one of the
popular, high-pedestrian traffic vehicles in a typical train, we wanted to
get it back to its former standard. Luckily we have a small cache of spare
windows salvaged over the years.
Technically, the window replacement job wasn’t too
difficult but of necessity, a two man job. This was interesting because
there isn’t much room for two gentlemen in the vestibule and working from the
outside becomes a one handed job as one hangs onto the coach while standing
on the top platform step. The two old blanking panels came out with little
trouble (Pic C07 below) and fortunately the original seal lips are still in
reasonably good condition. The thick gauge steel sheeting used for the door
skin stood the old coach in good stead.
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C07 – A pair of retired blanking
panels as removed from the door windows of our lounge car No. 14340. We’re
going to be keeping these for emergencies in case of train stoning
incidents.
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C08 – An original coach door window
with the bonus of still having the original
‘exit’ sign. The white area at the top is the backing where the numbers
would go.
Notice that the door latch has been permanently blanked off as per all our
communal cars, for security reasons.
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C09 – The old, thick-painted number
background had to be scraped off to fit into the tight heavy duty rubber
seal.
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The seals were test fitted before attempts were made to
replace the glass. Some of the glass still had original decals on and thus it
would be a double shame to accidentally break it. (Pic C08 above) The seal strips
have become slightly hard over the years but are pliable enough to be
fitted. But they are of too heavy a gauge to use the waxed string technique
that you’d use to fit a car’s windscreen. The Wehmeyer Brothers (Specialists
in all your coach restoration needs) made two attempts at one window before
gauging the fitting properly. The thick lipped seal had to be patiently
levered over the steelwork. One window had to have the painted decals
scraped back to fit the seal’s grooves. (Pic C09 above.)
These seals are compound seals and an extra strip is tapped
into a circumferential groove to close up the grooves and clamp the seals.
Eventually, the old number decals were scraped off (They didn’t match the
coach number anyway) but the original ‘exit \ uitgang’ sign was retained.
Many of the older glass stock items also have sticker residue from years of
varied service. One door had to have the glass installed twice. (Pic C10
below) The glass is symmetrical. But over the years of service in the harsh
South African climate, the window seals have distorted slightly. The glass
had to be removed and the seal rotated 180 degrees before refitting.
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C10 – Two coach masters work together
to fit a stubborn pane of glass. This was
the first attempt to get the pane in with slightly distorted seals.
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C11 – Giving the glass a shave –
the old number decals and sundry sticker residue is removed. Yeah, we’re
trying to catch the steam enthusiasts young!
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C12 – A newly installed vestibule window
with standard Reefsteamers numbering. Other than the gap in the seal at
the top, it looks original.
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PROJECT : Coach Axle Greasing :
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This was a Classic Cliffie job. But old Cliffie had the
luxury of having his son, Andreas, with him today. So Andreas got to do the
spanner work and to lug a 10 liter bucket of white grease around the shunting
yard. The two coaches had all their axles individually checked
(simultaneously with the coach windows being fitted.) No coach axles or
wheels were found to be missing.
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A01 – Andreas Mathee gets down
to loosening the last bolt from a
classic Timken bearing cover from a
coach bogie to inspect the grease
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A02 – Yuck! Not much grease left
in the bearing cavities after a
year’s worth of running.
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A03 – Here’s another coach axle
bearing generously and freshly packed with white grease and good for a
couple of trans-provincial steam train tours
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No damage was found in the axles but the original grease
was in somewhat mediocre condition. With the low mileage we do, we generally
do the axles one a year. But it looks like we may need to increase the
frequency of the greasing with the increased traffic demands resulting from
Steam in Action. Fortunately, it isn’t a complicated or physically demanding
job.
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PROJECT : Class 15F No.3052 Tender Filler Hose :
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How would a ‘Gricer’ identify a genuine Reefsteamers tender
once the stickers have been taken off, or the magnetic signs have been
pinched as souvenirs? (As has happened a few times.)
No, it’s not by the bulging sides, and the glittering streaks
down the paintwork, rippling with water seeping through the rivets and seams.
Our tenders are much better than that! No, you check out the plumbing
hardware on the rear face. All the tenders on our operating locomotive fleet
have all been fitted with an extra water filler hose which is accessible from
ground level. This project was completed before our 2007 Dave Rogers tours on
our operating locomotives. An example of this work is shown in Pic W01
below. The three auxiliary water tankers were modified the same way as well.
South African locomotive tenders are designed to be filled via an overhead
water gantry, via a tapered water hopper. These overhead gantries are now
quite rare in the post steam days and filling the tenders with fire hoses has
become the more usual practice. But using hoses brings its own set of
problems.
Filling a tender or a tanker via these retro-fitted pipes
has the obvious advantage of the convenience of filling up from ground
level. It also reduces the number of sharp, kinked bends in the intake.
Filling a tender with a hose fed through the water chute from the ground requires
two bends that will kink the pipe, restricting the flow and also pinching the
pipe against the thin edges of the water filler chute. There is also a
safely factor in involved. Our Footplate and Service Crews can now top up
their water supplies without climbing up on the top of the tender when the
locomotive is parked under electric cantenerary. And by using a bell
coupling, the end of the high pressure hose is positively restrained, which
eliminates the possibility of it whipping around and braining someone should
it get loose from someone trying to hold it in a water chute.
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W01 – The use of an existing water
filler pipe that was done to ready our engines (and tankers) for the 2007
Dave Rogers Tour. (You can see the pipe at the right rear corner – Class
15CA No.2056 ‘Dorothy’.)
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W02 – A still shiny, hardly weathered water
transfer gate valve as fitted to the tender by Sandstone Heritage Trust.
When this loco is running for Steam in Action, you won’t often see the
valve in this half open position!
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W03 – This is the original fabrication
attempt. Notice that the elbow has male threads. They may need to be cut
down to fit the female recess of the Valve.
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Class 15F No.3052 ‘Avril’ doesn’t have a full up-and-over
type water pipe adorning the tender. (Yet) But the tender does have a low
mounted brass gate valve fitted. This valve was fitted by the good staff of
Sandstone Heritage Trust to prepare the engine for her epic transfer run from
Ficksburg. (Pic W02 above) Those who have read up on that adventure will
remember that we pulled the transfer train with No.3052 ‘Avril’ hauling the
25(NC) No.3488 ‘Enchantress’ back to back, with a matching valve on her
tender. The valves were positioned to place a transfer water pipe between
the two engines and use the 25(NC)’s Worshond tender as a 12 wheeled canteen.
We had enough water to do the 460km run from Ficksburg to Kroonstad without
topping up.
Patrick Ackerman came into the depot at about 1pm, after a
frustrating morning of forgetting items and having make arrangements for
engraving. This was an ideal short-afternoon task for someone competent at
inverter welding – so Pat got the job. He started the project in fine style,
sourcing a threaded pipe elbow and a bell coupling and chamfering the edges
preparatory to the weld. The initial attempt was a 90 degree elbow with the
bell coupling welded onto the female end. (Pic W03 above) Incidentally, the
pipe used is high pressure seamless steam piping – nothing but the best for
our locomotives! But after the welding was done, he discovered that the
transfer valve is too close to the buffer beam and a coupled hose would get
in the way. He hardly even swore. We did humorously debate cutting off the
back of the tender water tank and extending it by about a quarter foot, so
the filler pipe would clear the buffer beam.
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W04 – Patrick tries the new coupling
for fit and discovers that the filler hose
would have to occupy the same
spatial co-ordinates as the buffer beam.
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W05 – The pipe elbow has been marked
to be cut down at an angle. Notice that the bell coupling has been cut off
again.
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W06 – here’s the cut down filler pipe
with the cut edges already cleaned and chamfered for the next weld. Even
so, that paint makes for a smoky, bad smelling welding session.
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More seriously though, we could have fitted a short
extension pipe, with the hassles of cutting and matching threads. But
something that’s been discovered with this type piping is that the more
threaded joints you have in the pipe run; the more likely it is that you
won’t get the final fitting in a neat, logical orientation as the pipe has to
be tightened. While the bell coupling ending up at an odd angle before the
threads snug up wouldn’t affect the operation much – it would just look very
untidy. So the decision was made to cut the elbow down to a 45 degree
angle. This meant that the newly welded coupling had to cut off again, as
the female pipe end needed to be cut off.
We were having problems with two welders or combinations of
welders and grinders going to the same time. There were occasional imprecations
and resigned grunts from within the tender’s hopper as the power occasionally
tripped out. The project will be completed next week. Eventually a proper
top-entry pipe will have to be made – as the back pressure of several tons of
water on a low mounted fitting might be problematical for weaker hoses and
the not-infrequent problem of weak water pressure in fire mains around the
country.
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PROJECT : Groundwork for new Turning Shop :
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A project that we’ve discussed for a while is the
relocation of the existing turning shop, which is currently the usual domain
of James Thompson. There are actually two reasons for this. James’s shop,
which I’ve come to call ‘The Lathe Cave’, is inadequate for our purposes.
Secondly there’s a donated large lathe in the main workshop, which is waiting
to be put into a final and operable position. It has been formally identified
as a safely hazard during a recent safety assessment, because it protrudes
into the main workshop walkway and is also a breach in the personnel fencing
that is required to surround the machine area.
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L01 - The existing turning shop
complete with the resident Reefsteamers lathe expert and a generous helping
of 12AR bits and various spare dynamos. (Left) This is an unusual pic as
the floor is actually dry. The ‘Top Shed’s’ single track is through the
door to the right.
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L02 – The large lathe that needs to be
moved. It is sitting on the RHS boundary of the walkway and blocks the
erection of required safety fencing. The 8 workshop tracks are just to the
left of the picture – you can see a loco brake pipe that snuck into the
photo at the upper left.
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L03 – The remains of the demolished
machine slab. We eventually want to put James’s lathe where those cupboard
currently are, and the large lathe will be in the foreground. There’s
another mounting slab just off pic to the right, complete with
disconnected, intact electrical cable.
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The existing machine shop has several problems. Firstly, it
has all the water proofing abilities of a spark arrestor grid, with a holed corrugated
roof and many broken windows that overlook the lathe. It’s not too unusual
to see James starting his depot day looking disgusted, with sopping wet
footgear, sweeping last night’s zinc-galvanizing flavoured rain water into
the inspection trenches. Apart from being unpleasant to do your work
standing in water, it’s a definite safety hazard when one uses electrical machinery
and the constant moisture is certainly not good for the machines and the
tools themselves.
We hope to get the machine shop into a dryer and more
pleasant location, with much better lighting and security. (The existing ‘Lathe Cave’ cannot be locked.) It’ll be more productive to have the machinist(s) working
close to the fitters, without having to walk across the depot. On the social
side, it would be more pleasant for the machinist to be closer to the center
of things, rather than isolated and sometimes cut off working out in the distant
back corner of the ‘Top Shed.’ This is especially true for James who is
totally deaf, which, combined with his usually remote location, means that he
can sometime inadvertently gets left out of things and more importantly, .. sometimes
misses his tea!
Furthermore, we want to eventually use the purposely ventilated
‘Top Shed’ for the lighting-up, loco-minding and live servicing of engines,
rather than using the workshops with their non-clerestoried, non-ventilated roofs.
(Pic L04 below) That 8 bay roof fills up quickly with smoke and can become
unpleasant, especially when burning coal with a high sulphur content and also
the fire is still being drawn by a plant blower. So by moving the ‘Lathe Cave’
out of the Top Shed, down to the presumably fresher air of the main Workshop,
and putting the smokin’ machines in the Top Track, there’s less chance of
literally smoking the machinist out. Coal smoke is nostalgic, atmospheric
stuff, and smells great – but not if you have to breath it for hours on end!
When Steam in Action takes off, we’ll have more need of the
top shed to do servicing and caretaking of live engines, rather than cold-grate
repair work.
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L04 – Air-bourne motivation to move
the live engine work to the ventilated, clerestoried ‘Top Shed’, and to
move the turning shop to the main workshop, Class 15F No.2914 ‘Spikkels’
smokes out the workshop rafters on 22 Sep 2007.
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L05 – Could this be a future working
museum? This is a general view from the entrance of the workshop from
about 6 months ago. It’s much tidier these days!
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The new turning area project has started with little
fanfare except the demolition of obsolete mounting pads during the week. The
existing cables for long ago SAR era machinery are still safely embedded in
the slab. So, once we can find the other end of those cables within the
distribution board, we have electricity conveniently laid on. Our long term
goal is to reactivate the entire machine shop area. The machines, most of
which are actually heritage items in their own right, are basically intact.
With some minor repairs and lubrication, they just need to have the
electricity supply reconnected to be put back into service. This workshop area
could become a working museum for Steam in Action.
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Pictures from around the shed :
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M01 – A new generic industrial
standard pressure gauge awaits its Reefsteamers assignment. The gauge
scale is
scaled to 1600kPa and is made
courtesy of Longdale Engineering.
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M02 – A recent upgrade in our Bar Car
during the quiet season. A water cooler stands next to the tea urn table.
Notice the fitted brackets holding this
top-heavy appliance against the walls.
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M03 – Any guesses as to which engine
this distinctive looking tender belongs to? This is the rear view of the
‘Worshond’ tender of Class 25(NC) No.3488 ‘Enchantress’. This locomotive
is so long that even with the cow puncher right at the workshop wheel-stops,
her butt is still sitting out in the sun.
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M04 – Two of the most unifying calls
at the Reefsteamers Depot are ‘Tea Time!’ and ‘….Food!’ Here, the formally
widely dispersed Reefsteamers gang wait to wash their hands before
partaking of Oom Attie’s’ 70th birthday cake.
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M05 – Dog Daze. Two of our security
dogs snooze the warm humid day away. (They ‘work’ night shift) We
recently lost two of our eight dogs overnight who were found dead in the
morning with no apparent symptoms beforehand. It is suspected they were
either poisoned, or given seriously bad food.
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M06 – Piet ‘Buffels’ Steenkamp is one
of our retired Senior Drivers. But his official role at Reefsteamers is
that of ‘Site Supervisor’ and he (and wife, Dorie) take care of the depot
facilities. Here ‘the old Buffalo’ is ‘grazing’ the grass in the security
dog compound.
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- Lee Gates -
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