Gentlemen,
The build rules are clear.. without the use of tools
That said, if it can be agreed that one standard tool be used then I dont see a problem (subject to a properly discussed and voted on change to the build rules)
Although if the valve is only accessable with a tool via a hole in the bodywork, how do we get round the potential problem of bodywork damage preventing access to the valve?
However, Im not at all happy with this business of having to turn over or tip a machine on its side to access the valve. Rembember we recently mandated a second removable link on some machines precicely for that reason.
I would be very dubious about passing any pneumatic machine at tech check that required to be turned over to access the valve. In fact, I would more than likely fail it!