|
This was the main project for Sunday and literally went
according to that classic Haynes Workshop manual phrase ‘Re-assembly is
the reverse order of removal.’ Actually, it was easier as we
didn’t have to use the acetylene torch to loosen bolts. We did have
a few sticky moments but in general, the job went very well.
The very first job, after psyching ourselves up for the
work, was to get the drop-pit rails safely up and lifted. When we
dropped the Bissell Truck several weeks ago, we had two block and tackles
– one for the A-frame
and one for the pit rail. One of these hoists has gone AWOL. We
lost a little time looking for it but eventually settled for the lighter
hoist that we eventually used. It would just change the job sequence a
bit. The pit rail wasn’t attached to the workshop in any way so
it was an easy job to lift it. (Pic T01) The gang were careful to
attach two safety chains to the suspended rail – one of them salvaged
from the machine shop’s hand rails. Shaun got himself a hard
hat. The only other people working in the drop pit were Dawie Viljoen
and myself
(Lee Gates), and the two of us were very wary of that dangling rail!
|

|

|

|
|
T01 – The drop pit’s rail has
just been chain-lifted to clear the way for the traversing of the Bissell
Truck. Safety chains were attached to either end of the rail right
after this photo was taken.
|
T02 – A generous coating of
graphite grease on the main bolster pin (center) and the two leaf spring
bosses on either side.
|
T03 – The drag (pivot) pin pad
and the four retaining cover bolts. The pad has been greased but the
bolts still covered in MH oil from the thread cutting work. These were
also greased.
|
The main bolster pin and the cylindrical bosses on both of
the leaf springs were then greased. (Pic T02)
We used graphite grease for long life – as this stuff isn’t
exactly accessible under a 190ton locomotive!
We also used the grease on the A-frame drag pin pad and the retaining cover
bolts – but after cutting
the threads with MH oil. (Pic T03)
We sent Piet Steenkamp to the tool store to get the die and
we got the right size on the second attempt.
And then two spanners, a nice long ring spanner for leverage and a shortie
‘slogging’ spanner for confined work.
We ended up using the slogging spanner for all four bolts
because of lack of space. (Pic T04 below) It meant
we had little leverage – and although we generally use a hammer or a
mallet on a ‘slogging spanner’ (hence the name), you don’t
use percussion when using a thread tap or a die. It was two-hex at a
time, arm-over-head work and those spanners weigh a few kilos. In
classic fashion, Shaun randomly picked himself the hardest bolt to do first
and as he’d already tired himself out with other work – Lee got
to clean up the rest of those threads.
|

|

|

|
|
T04 – The retaining cover bolt
threads were all run through a die to recondition the threads. That
‘slogging’ spanner
didn’t give us much leverage! There’s a reason why Shaun
looks tired in this pic!
|
T05 – The Bissel Truck having
been moved to the wheel drop pit. Notice the cruciform crow bar
arrangement at the front.
|
T06 – Shaun checks the gap before
sending the team to find wooden support blocks that will span the Bissel
frame but fit between those bolt ‘ears’ that span the axle
cavity.
|
The next step was to get the ‘bomb’ onto the
trolley tracks. We rigged up our cruciform arrangement of crow bars
again, wedged through the A-Frame castings. (Pic T05 above) The
Bissell truck was actually off the end of the rails and gave us a very
graphic demonstration of why railways exist in the first place.
(Reduced friction) It took four people to move that unit, with the
flanges crunching against the concrete, and Dawie Viljoen nudging the wheels
forward, from behind, with a crow bar.
Our problems weren’t over once we got on the trolley
tracks – as these have very tight curves at their extremities. We
had to continue the grunt and crowbar work to get the axle to maneuver that
tight curve. We even used manual sanding to give Dawie’s crowbar
a bit of grip. But once the Bissell Truck was on the straight section
of trolley track, with no flange friction – it was quite literally a
cake walk to get it on the wheel channels over the wheel drop pit.
With the underside preparation work done and the Bissell
Truck ‘bomb’ safely on the ‘Ordinance Rails’ –
it was time to get the lifts into operation. The hydraulic wheel drop
pit pump was started up and the jack trolley wheeled into place under the
Bissell truck’s center cavity and extended. There was a nice
custom fitted block of wood between the claws of the jack’s lifting
head. But the other blocks of wood that we had used to lower the
Bissell truck had disappeared over the previous few weeks. So, we were
fetching and testing out wood blocks with team members poking around the
entire workshop. (Pic T06) It we needed a block of ‘rail
wood’ that’s narrow enough for jacking, long enough to support
both sides of the Bissell’s frame and strong enough for the load.
(We only scored 2 out of three – but that’s not so bad.)
The Bissell Truck was then jacked off the wheel channels
– which went without issue. I was in the
right position to see those big channels flex when the weight was taken off
them! (Pic T07 below)
Obviously we wanted to minimize the lift height – as you end up with a
dangerously top heavy contraption, mounted on rails, with people underneath.
But we had to get some extra lift as the wheel channels fit into recessed
slots in the workshop floor and they themselves would need to be lifted
slightly before withdrawal.
|

|

|

|
|
T07 – Up she goes! We
extend the jack and VERY CAREFULLY lifted the Bissel Truck out of the
U-shaped wheel channels.
|
T08 – Sliding the inboard wheel
channel out. That ‘bunch of grapes’ to the left is a
knotted safety chain for the pit rail hanging overhead.
|
T09 – The crow bars used as slide
bearings and as a bridge for the a-frame pivot eye.
|
We slid the inboard wheel channel out with little issues
(Pic T08 above) and then
entered the most dangerous phase of the job as now the 4 ½ ton Bissell
truck was
supported entirely by the extended hydraulic jack and that itself is
only supported on rails.
Only one more step was required to start the traversing
operation and that was to lay crow bars in the pit catwalk channels, to act
as longitudinal slide bearings for the a-frame pivot. They would also
act as a bridge to get the A-Frame pivot eye safely over the man-trench
before dropping the pit rail and setting up the hoist to lift the Bissell
truck. The bars do seem flimsy – but most of the weight is
balanced around the axle and taken up by the jack. (Pic T09)
The Bissell Truck was then gently lowered and
rotated. (Pic T10 below) With the unit standing in
the center line of it’s location in the locomotive, the A-frame
protruded beyond the trench walls.
With very careful traversing, including more crowbar-to-the-wheel work by
Dawie, the Bissel
Truck was located under the locomotive – barely clearing the hanging
pit rail. (Pic T11 below)
You might naturally ask why didn’t we lower the
Bissel Truck even more. The problem was that the main
frame would then be lower than the a-frame pivot – which was still hung
up in the crow-bar lined catwalk channels. This would tilt the weight
backwards and make for a dangerously asymmetrical load on the jack.
|

|

|

|
|
T10 – We start lowering the
Bissel Truck. This is the most dangerous stage of the work as the
jack operator must remain under the top-heavy load. You can just see
Dawie’s head to the left of the ram. He was operating the valve
handles with an extension pipe.
|
T11 – Can we make it? Yes
we can! We sneak the Bissel Truck in under the Damocles Rail and make
it with a
paint skin’s width to spare.
|
T12 – Halfway up the
mountain! Well, in the trench, actually. The aligned Bissel truck
is ready to be raised and attached to the locomotive,
|
With the Bissell Truck safely clear of dangling iron ware
and the jack roughly in line with the center line of
the Locomotive’s frame – it was rotated straight again. (Pic T12 above) This was the last of the seriously
heavy work and we were pleased with the progress. We were pleased until
we saw that a nice long plank that we’d selected to bridge the axle
cavity actually protruded too far out and would have fouled a brake hanger as
soon as we raised the baby. With 4 ½ tons on that plank, the
only option was to cut the protruding end off – the nice long plank
becoming a nice short plank. Luckily, Andre van Dyk had his jig saw on
the premises and poor Dawie had the chore of cutting the wood which was about
1 ½ the depth of the jigsaw blade. (Pic T13 above)
Isn’t working on trains fun?
|

|

|

|
|
T13 – Gettin’ Jiggy with
it.
Dawie does some subterranean trimming.
|
T14 – The surgically cut down plank
will now clear the brake rigging once the Bissell Truck is lifted to engage
the springs.
|
T15 – An Andre van Dyk
speciality – stewed wors and pap. We ate a bit too
much….
|
Once Dawie had finished the chop job (Pic t14 above), it
was time to raise the Bissell truck into it’s approximate final
position (pun intended) and do some delicate adjustments (with crow bars) to
get the pivot eye to line up with the pivot pad. While doing this, the
Bolster Pin and the two spring bosses had to be engaged in the Bolster Swing
Plate as well. This went smoothly and soon it was time for a
break. In fact, it was time for some classic van Dyk stewed boerewors
and crumble pap – aided and abetted with some left-over salads from
Fred Sewell’s party the previous night. (Pic T15) We are
heartily and paid the penalty, starting to get sleepy with a full firebox
after an active morning.
|

|

|

|
|
T16 – Dawie very carefully sets
up the wire rope sling around the a-frame, with just an index finger and a thumb
to avoid the sharp, frayed edges.
|
T17 – Tightening the pit rail
fish plates.
Fred Sewell is on the other end of that pry bar – locking the flat
side of the rounded bolt head.
|
T18 – Crunch! Not the best
time to be under the locomotive and a real adrenaline booster!
|
Upon getting back into the trench, we started getting the
hoists and cable slings all set up. But, because
we only had chain block and tackle, the rail of Damocles had to be let back
down to ground level. This
went without incident and then the fun started of finding a safe place to
hang the hoist. It needed to
be centrally slung under the boiler to support the a-frame while lifting the
Bissell to the final height and
keeping it level. It was a case of pin the tail to the donkey, in this
case, the loco. But, it was managed.
Dawie got the unenviable job of setting up the sling cable,
which is getting a bit frayed from all the
Bissell work and will soon have to be discarded. In the meantime, Dawie
was very delicate and
genteel in his threading operation and didn’t slash or lose any finger
tips to that cable. (Pic T16 above)
We then put the pit rails back – after looking for
the bolts that had been laid aside several weeks before. It was found
to be easier to hold the old rounded bolt heads with a pry bar rather than
trying to use a spanner. The two rails weren’t taking any
weight, as yet. It was ironic that as we finished tightening the pit
rails, the plank holding the Bissell truck’s weigh snapped under the
shearing stress (Pic T18) and the entire unit settled about ½ an inch
with a sudden crunch. NOT the sound one wants to hear with people in
the inspection pit!
Well, once everyone had checked for nuggets in their
underwear, it was time to put the pivot pin back in place. The
collapsed jacking block turned out to be stable – held in place by the
ends protruding into the axle cavity and wedged against the jack head.
We very carefully hoisted the Bissell truck A Frame upwards to bring the
pivot eye and the pin pad together. With some persuasion, the fellows
managed to fit that pivot pin. (It’s removable, as it is a
wearing part.) No hammer work was required. (Pic T17 below)
The fore-aft alignment was accurate
as the Bolster pin was acting as an index pin. But the Bissell, as
expected, required just a little bit of swiveling
on top of the rotating jack ram. This time around, the swiveling job
was crow bar work from the outside of the trench as the spring bosses had
engaged and so we were swiveling with the spring placement playing a role.
Fitting the pivot retaining cover was a breeze –
thanks to the newly cut threads and the
cleaned up and tapped nuts. (Pic T18) With the graphite grease on
there, this lot should be
removable for many years yet. New split pins were installed as a matter
of course. (Pic T21)
|

|

|

|
|
T17 – Getting the Pivot Pin back
in place. Amazingly enough – no hammer or mallet work was
required – just a little swivelling.
|
T18 – You can clearly see the top-hat
profile of the retaining cover as Shaun is tightening up the four
nuts.
|
T21 – Some undercarriage
bling. The new split pins shine in the camera flash.
|
The penultimate job was to put the brake rods all
together. (Pic T22 below) The adjustable rod came together quite
easily, if rather greasily. Initially the boys screwed it in too tight
(too short) and had to unscrew it to get the lengths to match. To get
the relay lever to engage both the rods was a three man job – with two
pulling the rods inwards and one ready with the pin.
|
|

|

|
|
|
|
T22 – Reassembling the brake
pull rod. It’s well greased and as it was un-tensioned, it
could be screwed up by hand. Notice the safety hangar under the rod
– to keep it out the tracks should a link fail.
|
T23 –The basic assembled Bissell
Truck in it’s proper place and bearing the weight of the engine as
the two 50 ton jacks area removed from the leading engine unit.
|
|
With the brakes all hooked up, we were essentially
done. (Pic T23) The speedometer drive was still to be connected
on the LHS axle end and obviously the oxide-red paint would need to be
covered with black paint for running. The remaining items to be
installed are the cleaned lubricator cups and their brackets.
Fortunately, they are a LOT lighter than this lump of ironmongery.
At the time of sending – the Bissell Truck on the
trialing engine unit has been removed. The guys
are well practiced now and the truck was removed by 3 guys on Friday night,
23 November.
|