"newshound" gurgled happily, sounding much like they were saying:
I have a Horsebox on a 1986 Leyland Road Runner chassis, (7.5 tonner
> like a modern Daf 45).
>
> The inspection people have just failed it for having a "braze" on the
> air line from the compressor to the first reservoir. I havn't had a
> close look yet, but someone may have replaced a length of the original
> steel with copper. My local service guy thinks it is OK and an
> unreasonable fail, but obviously sees it as a rats nest job and doesn't
> want to touch it. I just need to get it fixed. Pipe is about half inch.
> I did wonder if it was a soldered repair, which might be more reasonable
> grounds for failing.
>
> One difficulty is access to the compressor joint (luton stops the cab
> from tipping). System pressure is about 6 bar. Can't use polymer (like
> trailer curlies) under the chassis apparently. Does anyone know what
> materials are permitted, e.g. copper, stainless, other alloys, instead
> of steel? Obviously it has to have a suitable pressure rating,
> presumably 12 bar or higher. There is already one compression joint in
> the line (apart from at the ends). So one strategy might be to cut
> forward of the braze, remove the brazed section to the compression
> joint, and make up a new piece from the old compression joint and use a
> second joint to connect it to the line to the compressor. But that
> assumes the existing front (copper?) is actually OK. I know about
> galvanic corrosion with mixed materials.
> There's a local branch of Pirtek, and I'm told they can make up just
> about anything, but I'm not sure if they will know for sure the legal
> requirements for lorry air lines.
I'd be _gobsmacked_ if they didn't.
I havn't spoken to the local DAF agent yet, but I imagine it's not a
> stocked spare, so they'd just get a special made anyway.
You may be surprised. It's gotta be worth a call.