hopefully someone can help me, I've just aquired a hydrovane 705 and need some help, insibe the electrical control box, somebody has removed a couple of the relays, thoughtfully they've tagged the wires, but not left a clue asto the relay types, and on one end, they've removed what looks like it might have been a solenoid, or pressure switch, and a small brass right angled bit was broken. If anybody has any ideas, or accses to a manual I would be greatfull for any info