Original page created on 19/03/2023.
Hornby-Jouef A4Dtux generator van coach.
These coaches look better overall than the LS Models, particularly the width of the TEE strip and the height of the toilet windows.
However, they have many approximations:
When you want to improve the appearance or assemble the detail parts, difficulties appear:
Generally speaking, disassembling is quite easy, but there can be exceptions. I had difficulties with the A4Dtux coach, whose chassis was occasionally glued on the windows. In this case, you should not force the windows, but locate the spot as precisely as possible to remove the glue with a cutter blade for example.
Let’s first look at the aesthetic improvements that can be made.
On these coaches, there are actually two types of jumpers. On the one hand, there are the classic 1500 V heating jumpers (mark 1 on the photo), supplied in parts but without any mounting location. On the other hand, the specific jumpers for TEE coaches whose air conditioning is supplied by the generator van. The latter cables are three-phase 660 V (mark 2 on the photo). They can be identified by the fact that they are much larger than the others. You can see the three cables partially joined by a common sheath.
The 660 V jumpers are simply primed on the Jouef coaches. Because of their size, I will use telephone wire, external dia. 0.9 mm, core ⌀ 0.5 mm.
Sections of 25 mm, stripped at each end for about 2.5 mm, are prepared. After removing the buffer, I drill two ⌀ 0.5 holes at the jumper stumps of the coaches, 1.5 mm apart, the second one a little back. It will be even better to remove the stumps in question, as suggested by Renato on the forum. I will do it on the last coach I bought (see below).
The operations can be done on the disassembled chassis, it’s more convenient, but also on the whole coach, like the A4Dtux that I didn’t manage to disassemble at first. More in pictures.
Drilling on the undismantled coach
Preparing the electric jumpers.
The stripped ends are inserted into the holes.
A little matt paint still needs to be applied, especially to hide the copper that is sometimes still visible.
In the previous photo, you can see that the 1500 V jumper is placed just behind the very thin sheet metal of the body. On the model, the sheet metal return is obviously thicker. This is where the fixing point will be drilled. The pin is 0.9 mm in diameter.
I first mark the location, at sight 1.5 mm from the top edge with a 0.5 mm drill bit; I then enlarge to 0.7, then 0.8, and finally 0.9, all this to avoid an unfortunate slippage.
View of the mounted jumper after the black marker has been applied.
Click for a closer look at the end of the coach.