Workshop manual wanted - Bedford Bus 1980

I'm restoring my 1980 Bedford bus, 6cyl deisel runs beautify, brakes need attention and some rewiring to alternator and dash instruments.
Is it possible to get info and drawings on braking system and wiring diagram?

If you look back a few weeks ,someone asked about Bedfords buses,and a link to the relevant sections of the service books...(each component has a separate book) was listed.

Thanks John, I know nothing about the braking system, I was hoping to find Schematic drawings for the air assisted brakes and wiring diagram.
My bus has been rewired front to rear but needs to be wired to alternator, dash instruments and possibly more so I'm not sure how to figure this out without a Schematic drawing.
It's a running bedford deisel NJM 330 5 speed.
Sorry John I couldn't find the links to the manuals on the 72 bedford bus forum.

Redcliffe, try here........ www.hcvc.com.au/forum/restore/18166-1972-bedford-bus

Cheers, thanks anyway guys but doesn't relate to my bus, I'll keep searching.
Keith