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FP01 –A tender so clean that you can use it
for a Reefsteamers style alfresco buffet! This is a view
into ‘Avril’s’ newly cleaned tender with the rusty braces removed and the
leftover welds all ground down.
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Class 15F 3052 ‘Avril’ hasn’t done any work since she
arrived at our Depot since the Ficksburg
Locomotive transfer project. We’ve been wanting
to get this machine back into service to fulfill the ethos of Steam in Action
and to please David Shepherd in letting him knowing that his locomotive is
doing what she’s designed to do. (besides our
own enjoyment of running these old steamers, of course.) Besides, steam
locomotives really don’t like standing idle – coming up with all sorts of
leaks and problems when they are eventually put back into service.
There is one more prosaic reason to get ‘Avril’ earning her coal n’ water –
we are potentially running into a Reefsteamers version of load-shedding. We’re running short of motive power.
Mechanically-stoked Class 15F No.3016 ‘Gerda’ and Class
12AR No.1535 ‘Susan’ are both waiting for hydraulic boiler inspection, the
12AR needing 7 new boiler tubes fitted. We hope not to have any boiler
related surprises revealed on the Class 15F, but that’s always a possibility.
Class 15CA No.2056 ‘Dorothy’ is temporarily on the sick list with the bogie
bearing problem, and ‘hand-bomber’ Class 15F No.2914 ‘Spikkels’ is out of
action with a failed exhaust pipe seal and struggles to steam with the
resultant weak vacuum in the smoke box. (It turns out that a previous
Millsite Depot repair job had been done by pouring normal building concrete
into the crevices of the smoke box saddle around the cylinder exhaust pipe,
located under the blast pipe. This concrete has broken up under the heat
and vibration, and bits have been blown right out up through the petticoat
and the chimney. I do hope no one was hurt or startled by fragmented
chunks of hot concrete tumbling out of the sky when the steam train went
by!.) Anyway, ‘Spikkels’ boiler certificate only has another month to
run anyway.
Presently, Class 25(NC) No.3472 ‘Elize’ is the only
locomotive that we can roster up to steam efficiently and safely with a day’s
notice. We should have the Class 15CA running again in a week or two
when we get the front bogie back together, but it’s good strategy to get
Class 15F No.3052 ‘Avril’ running properly.
Actually, the locomotive is in great condition internally
and steams very well, but has developed numerous leaks at various glands and spindles.
Thanks to the preparation of the Sandstone Heritage Trust
staff before Reefsteamers moved the locomotive from Ficksburg for Steam in
Action, Avril’s boiler now has a new 3 year boiler certificate.
However, the triangular braces in the tender’s coal hopper and the rear
scuffle plate are badly corroded. The problem was noted as developing
some years ago when the locomotive was first transferred to the Free
State. There was no visible evidence of the tender sides bulging out
with a full load of coal but it can be taken as certain that excess strain
was being places on the upper frame. The rear scuttle plate, which had
already been patched in the past, is also showing signs of corrosion and the
rust has eaten right though the outer skin at various points.
The first step of the tender repair job was a closer
inspection of the rear scuttle plate, just in front of the water inlet
hopper. It showed evidence of corrosion over about ¾ of its
length. (Pic T01 below) It didn’t look too bad considering the
general scruffiness of this hard working, frequently wetted and exposed area,
but the complete penetration of the outer skin means water will be drawn into
the gap between the plates by gravity and capillary action – and set up
hidden corrosion between the plates.
The coal resting in the rear ledge (Pic T01 below, again)
had to be moved completely into the sloping coal hopper to clear the coal
ledge for the inspection, cutting and welding work. We were planning to
completely empty the tender anyway, by using the coal grab, and thus needed
to get the coal into one easily scoop-able heap. Lee Gates and Aiden
Mc. Carthy were put onto the job. This was Aiden’s first visit to the
Reefsteamers Depot for a while and he was a bit rueful on coming back the day
there is coaling work to be done. It wasn’t at all bad though and at
least the work was done in the shade of the ‘Top Shed.’ We both did the
coal man’s dance (The ‘Coal Cascade Two-Step’) to quickly shift coal on the
slope (Pic T02 below) It looks like one is trying to run upstairs on a
downwards moving escalator (with lots of marbles on the steps) and hopefully,
the coal is loose enough to cascade down the slope under your feet with minimal
effort. It’s great cardiac exercise but is quite hard on the boots,
safety or otherwise. And if one is over six
foot tall, you have to watch that you don’t bang your head on the angled i-beams that support the clearstory roof. (You can see the grey painted
angles in the picture.)
Don’t forget your hard hats, please!
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T01 –
This rear scuttle plate has rust
damage along ¾ of its length. The
hinges have also broken off from the
angled plates of the water inlet chute.
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T02 – Aiden Mc. Carthy’s latest dance –
the Coal Cascade Two-Step. Aiden is stomping on the coal in the back
slope of the hopper. The coal in the foreground (which we had to
clear completely) is sitting on the horizontal ledge and requires shovel
work.
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C03 – One of the braces on the Rear Scuttle
Plate shows severe impact.
Notice the ‘panel’ in the foreground,
a poorly done patch which is bolted
into place, thus leaving cavities
for water ingress.
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Locomotive coal has a way of settling over time and
becoming increasingly interlocked. If one doesn’t have a flat surface
to shovel against, then it is hard work to get the shovel in between the coal
chunks. You can twist the shovel to work the leading edge in – which is
murder on the wrists, or alternatively scrape from the top and scoop away at
one spot to ‘wear it down’. Aiden was the first to be able to work his
way down to the metal surface and then sat on the scuttle plate, winded,
while I gleefully took over for a few minutes and managed to flat-plated
single-handedly move more coal than we’d both done in the last 10
minutes!
The coal smelt bad though, as if half a dozen tom cats had
been rebelliously lifting their tails and squirting their calling cards
inside the tender. We soon found deposits, sometimes literally nuggets,
of bird guano and I suspect probably that of God’s other little critters,
which gave the coal an unusual, unpleasant sour
ammonia smell. Both Aiden and I were trying not to breathe too deeply,
as the stuff dispersed into the air. Ever tried
deliberately breathing shallowly when exerting oneself with a shovel?
Just another one of the unexpected challenges of steam loco
preservation…
Actually, the ammoniac coal is another motivation for the
ethos of Steam in Action. A steam locomotive in regular use is unlikely
to have individual lumps of coal in the tender remaining there long enough to
collect corrosive guano. Given the natural size of locomotive sheds,
with the cathedric spaces and open roof trusses, even locomotives under safe,
covered storage are prone to guano damage. Even the Reefsteamers have
pigeons (and a well smoked barn owl) in amongst the rafters. Coal, and
especially coal dust, stored wet is another source of corrosion, as well as
is wet ash – as evidenced by the tendencies of the lowest boiler tubes to
rust out when the smoke-box isn’t cleaned properly, as well as the char
collecting between the fire arch and the rear tube plate. Active
well-tended steam traction doesn’t get the chance to corrode!
The rear braces of the scuttle showed evidence of severe
corrosion. But the damage on the angled webs
has been further aggravated by years of shovel lip impacts. (Pic C03
above) Remember that this part of the tender’s coal compartment has a
flat floor and any coal here has to be manually scooped into the coal hopper
proper. Thus the characteristic squarer notches in the webs. (I
guess coal trimmers don’t work to a bell curve.) We also found a
crudely done patch on the center panel. The edges weren’t sealed, which
allows even more crevices for water and fine coal granules to enter and get
to work in peace, rather like cockroaches in their gaps behind skirting
boards. We found other patches on the side panels, both of which were
above the top ledge.
Every single one of the main side braces have been almost
totally eaten away by rust, although the vertical angle-irons that support
them are still intact. You can see the extent of the damage in Pic T04
below.
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T04 –
Totally corroded side braces.
Notice that the web in the center is totally missing. That angled rod
at the top left is
the fireman’s coal slice resting in its brackets.
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T05 –
Shunting the Shed. Four coaches
and one Class 25(NC) locomotive had to
be moved out of way before our tender-girl could be pulled out onto the
Reception Track.
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T06 –
Class 15F 3052 ‘’Avril’ looks a picture waiting next to the old forge shop
while the Hunslet Taylor Shunter uses the Running Sheds tracks to run
around the train.
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When welder Shaun ‘Smudge’ Ackerman pitched up for
inspection (conveniently, once the coal work was finished), we had a tour of
inspection of that tender before getting down with relief and out into the
open air, to blow the black snot out of our noses and have a welcome cup of
tea. The dull and overcast day was refreshing. The reception
track initially looked as if it was bustling with activity, with the coaching
crews moving back and forth and a lot of visitors watching the action.
The next step in the tender repair project was to get the
hydraulic coal grab wagon next to the tender to be within easy reach of that
coal at the bottom. The idea was to get the coal completely out of
there to facilitate full inspection, and footing for the workers within the
tender hopper. It’s bad enough trying to brace your feet against those
sloped surfaces, but with coal underfoot, it becomes dangerous, especially
with a torch, or an angle grinder. Shunting was complicated by the fact
that ‘Avril’ was at the back of the top shed, boxed in, nose-to-nose, with
Class 25(NC) No.3472 ‘Elize’ And the coal grab wagon was buried within
the old running shed yard. Furthermore, the cross over track was
occupied by the four coaches currently being repaired. There was much
shunting action then to get one locomotive out onto the open. That kind
of thing tends to happen at a busy locomotive shed and it kept Piet ‘Buffels’
Steenkamp and Sakkie Kekana busy and out of trouble.!
Firstly the crossover track had to be cleared – with three
day sitter coaches and the catering car being pulled out and spotted into
track 2 of the running shed, alongside the R4 Garratt and the caboose.
What was funny was to see Willie ‘Sarge’ Wehmeyer stoically going about his
work in the midst of the coupling and shunting movements. With the
coaches off the diagonal cross over track, the way was clear to haul the
hydraulic coal grab out and dump it behind the forge, before reaching in to
get the 25(NC) out of bed and pushed out onto the crossover. (Pic T05
above) The tracks were slippery with the constant drizzle and much
manual sanding had to be done to give the two-axle shunter some grip.
That was Sakkie’s job, using large margarine tubs as sanding gear.
Only then could Class 15F No.3052 ‘Avril’ be pulled out of
the back spot in the single-road ‘Top Shed’, through the audience and the
displaced coach repair crew. I took a ride out on the tender, being
very careful to stand in the center to avoid beaning myself on the roof
trusses and getting some pictures in murky daylight. Avril was spotted
behind the forge at the back entrance and left alone while the busy little
Hunslet Taylor trundled off to run past through the old running sheds and get
onto the other side of the coal grab wagon.
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T07 –
On the right end of the coal grab wagon, the shunter pulls 25(NC) No.3472
over the crossover before pushing her back up the Reception Track to the
right.
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T08 –
Kids. Don’t try this at home! These guys are
professionals! Moving the Class 15F 3052 ‘Avril’ onto a diverging
point as close as possible to the coal grab. This was naturally done ver-r-r-ry slowly and carefully.
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T09 –
if you cross this line I’ll lose my temper! This is the guide line
for the second attempt to get the coal grab wagon and the 15F tender as
close as possible.
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With the Shunter at the opposite end of the coal grab
wagon, it was now possible to push the grab wagon and the locomotive onto a
divergent set of points. First, the Class 25NC was pushed back into the
‘Top Shed’. Then came the tricky shunting. The coal grab cannot
reach across the widely spaced yard tracks and still have enough length in
the boom to maneuver. It usually has to be parked on a set of points
and the coal wagon or locomotive parked as close to the convergence as
possible. It means very tight shunting, carefully controlled and for
goodness sake, don’t stand in the gap! (Pic T08 above) Piet
‘Buffels’ Steenkamp did very well with the slow speed control of the
shunter,
with Shaun Ackerman very cautiously talking them into the gap. Remember
that the out-of-steam locomotive had no operable brakes, an unattended
handbrake and outweighs the shunter by a factor of four.
This maneuver had to be done twice, with a guide line
scratched in the soil to spot the hydraulic grab a bit further back the
second time. (Pic T09 above) As both tracks slope slightly, extra
care was taken with handbrakes and scotch blocks. But
in direct contrast to the fuss of the drawn out and convoluted shunting, the
unloading of the remainder of the coal went with little trouble. (Pic
T10 below) Lee, Sakkie and Aidan had to do the coal trimming to get the
last bits of coal up into the scoop. Not only can’t we scoop up small
quantities of coal, the scoop action would have ripped up the plates for the
stoker trough. (It’s hidden under the coal in Pic T11 below) The
removed coal was stored on one of the two bunkers on the hydraulic coal grab
wagon.
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T10 –
Yummy! The first hard won
scoop of coal is taken for transfer.
But was it worth all that shunting?
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T11 – And here is the empty tender. Note
the two very rarely seen access hatches – the small one being for a
universal joint. Guess how often the joint gets lubricated with the
hatch being under coal most of the time?
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T12 –
Highly advanced coaling methods.
The stoker trough and shovel plate had
to be hand cleaned for inspection.
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When the majority of the coal was removed and we put all
our steel-wheeled toys away, Class 15F 3052 ‘Avril’ was shunted back into the
‘Top Shed.’ The relevant positions of the two locomotives now reversed
with 25NC 3472 ‘Elize’ right at the back. Lee Gates and Aiden Mc.
Carthy got busy getting the last ‘burnt-pop corn’ kernels of the coal out,
while Shaun Ackerman got busy collecting the acetylene torch, looking for his
missing angle grinder and of course, fetching his favourite tool – the 16
pound mallet! The coal cleaning was performed with that most advanced
of tools – the bucket! (Pic T12 above) The coal wasn’t really in
the way for footing or work on the rusted out braces, but we wanted the clear
out the stoker trough for inspection and to remove the sliding trough covers
for inspection as they were said to be damaged.
We had a pleasant surprise. (for
a change ! ) The sliding covers over the stoker are actually
fine. There is simply a little lip over the first part of the channel
that is missing so the first of the covers can be removed – It means that the
covers can get dislodged as they are bullied forwards or backwards to change
the coal take up area. We simply need to straighten up the existing
covers a bit, put them in with one missing and then close up the rails.
We now have a stack of steel blanks cut as covers – but they’ll come in
useful for further stoker upgrades, if the metal plates don’t
*cough* ‘disappear’ in the meantime. (Pic T13
below)
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T13 – A pile of steel plates waiting to be
fabricated into stoker trough covers – the
top one being an original cover plate as
a pattern. The checker plate grid is bad engineering as it increases
friction when you’re trying to slide this out from under a coal pile.
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T14 –
An abandoned cut in the scuttle plate. The rust and corrosion was
burning unevenly in the acetylene and making a very rough cut.
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T15 –
Aiden takes a few hopeful swings at the rustiest brace to try and break
spot welds. Notice that the top of the vertical channel has popped
out from the tender’s rim frame
Final score Tender - 1. Reefsteamers -
0
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Shaun started cutting out the rusted areas in the rear
scuttle plate. The acetylene torch was running low for a start. But the rust and corrosion was heating up unevenly and
making for an unavoidably very rough cut with the acetylene torch. (Pic
T14 above) That’s okay when cutting something up for scrap, but not
when trying to make a clean, neat cut for a patch. With that cut
abandoned, a first and rather hopeful attempt was made to remove the braces
by hammering them hard enough to break the spot welds. (Pic T15
above) After much whacking, one and half braces came loose. It
turns out that the welds weren’t as weak or as brittle as we’d hoped.
So much for that idea.
With the mallet laid aside, the tedious work of torch
cutting and angle grinding had to begin, each brace being receiving the torch
and grind treatment before being tapped out of position . The job was
enlivened by the torch’s gas bottles reaching bottom halfway through the
job. Meanwhile Oom Attie was removing paint from the locomotive’s
copper pipes and wincing with the occasional fusillade of hammer blows.
Each weld has to be ground back with the flush faces of
bossed grinding disks. Aiden and Lee found that this technologically
simple job was much enlivened by trying to brace yourself
on a floor sloping at 45 degrees. Slipping several feet with a spinning
angle grinder in your mitts is a good way to lose a finger or two! (Pic
T17 below)
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T16 – Locomotives and acetylene torches
aren’t necessarily a bad combination. Torching off the surprisingly
tough intermittent welds along the braces.
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T17 –
Aiden grinds off the welds flush with the plating. We used several
disks to get this job done.
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T18 –
The cut out braces have been passed out over the shovel plate and into the
cab.
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Lee took over the second shift of 15F tender grinding, with
the shrunken remains of the grinding disk. But
the call came for the last scrub-up and tea for the day. We didn’t even
bother putting the tools away – just hiding them within the tender for the
next day’s work. I stayed at home to do typing work that day – but you
can see the cleaned out and prepared tender in the frontspiece FP01 for this
section. Shaun spent the following day finishing off the grinding and
then torching out the entire rusted section of the rear scuttle plate,
cutting through sound metal.
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