Had a challenging evening & early morning (4 hours in bed :-( ), after being called out to help get a recalcitrant Lister Blackstone ES6M (400 bhp) started, the vessel being booked on dry-dock (a 'real' one, not mine ) for 8am today. It's electric start only, with twin CAV S7 starters. The problem is with the fiendish electrical interlocks, warnings etc, which aren't performing as they should. Pressing the 'start' button actually starts an electric lub oil priming pump, & the starters are brought in when the oil pressure reaches a set level. etc, etc.... In theory.... Then there's a long-standing problem over the starters not switching off when they should..... Trying to work all this out, without the aid of a circuit diagram, and with the only source of lighting coming from a Foden FD6 screaming away at 1800 rpm 6 feet away, isn't easy!! The electrical controls seem to be Lister/Blackstone rather than part of than the shipbuilders' work, so I mention it here just in case someone has the relevant diagrams tucked in a cupboard somewhere. I suppose Alsthom or whoever it is now might have something somewhere (from 1969), but I wouldn't bet on them finding it after umpteen reorganisations. Also, anyone got a CAV S7 starter, 24Volt, clock rotation, in use as a doorstop? We *did* get it to the dry-dock, BTW ;-)
Cheers Tim
Tim Leech Dutton Dry-Dock
Traditional & Modern canal craft repairs