James,
What paint are you using and the shade of grey? I have a couple of L & Y wagons that need painting.
Thanks.
JamesI didn't quite expect things to move like they did - I sat down for an evening to assess what needed to be done regarding the brake gear and by the end I'd ended up putting it together (although I'm inclined to say "bodged").
Clear photos showing the underframe of the Dia.72s are limited, but thankfully the instructions came with the following diagrams to help explain the L&Y double-V brake arrangement:
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Using the original whitemetal baseplate as a guide, I drilled two holes in the underside of the wagon for the vacuum and Westinghouse cylinders:
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I then used the brake shoe push rods from the SWW etch to craft the missing central push rod:
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Assessment of the parts provided and a test fit of the cylinders led me to the realisation there was no way of connecting the Westinghouse cylinder to the crossbar, so my attention turned to the linkage provided for the double-V arrangement:
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I never used this, in preference of the brass equivalent which looked finer. However, by cutting one lug off, it would line up perfectly with the end of the Westinghouse cylinder, if the cylinder was positioned at an angle (and lo and behold, the instructions state that the cylinder "hangs at an angle and just clears the axle at that end").
So, this was the ensemble of parts:
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And this was what I made of them:
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The vacuum cylinder leans at an angle too, to align with its own push rod. However, this matches the side-view drawing supplied.
That was the effort of Monday evening, but I've since painted the underside, as well as the spring carriers for the axles:
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The wires on the W-irons are to ensure the holes for the axle keeps stay open.
There is little I can do now until the various parts on order arrive. I have started reading over the Dia.64 instructions to fill the time...
- James
James
The brake gear knitting is looking good. Just wondering about the paint on the rear of the W irons and the spring carriers - I think the paint will stick and stop the springs springing. Bare metal with some graphite works well.
Sorry, but that Westinghouse brke cylinder is just plain wrong! So far as I am aware, these things were always ridgidly mounted to the underframe - remembering that they "push" whereas a vac pan "pulls". Of course if someone can prove me wrong with a photo, I will graciously retreat to eat my hat ... Otherwise, I think they always look like this:-
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I doubt any hat eating will be required. I was too concerned about the paint to really look at the position of the Westinghouse cylinder.
The Westinghouse cylinder should always be mounted horizontally. The pushrod usually connects to a horizontal fulcrum beam with a second rod connecting to an arm on the transverse operating rod. I would expect the cylinder to be mounted so only the lower half is visible behind the solebar. These photos might help, although Westinghouse only fitted, no vacuum to complicate things. @J_F_S 's photo looks like it is a post WW2 NSWGR wagon installation so maybe a bit modern for the van James is building.
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I have also attached a pdf of an 1880s wagon GA drawing which shows a typical layout well. Although the wagon illustrated was never built thousands of the same underframe were built in the thousands.
I have just spotted a c*ck up on my end
I suspect you have noticed that the operating crank for the Westo cylinder should point towards, rather than away from the wagon floor. As it currently is, the cylinder is pushing the brake 'off' rather than 'on'. I expect when you correct that, the cylinder will be horizontal. Kit instructions are often less than helpful if you don't know the protoype inside-out!