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PM Alternator & S704-1 Relay

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ianwilson2

Joined: 06 Jan 2008
Posts: 33
Location: France

Posted: Sun Jul 06, 2008 4:21 am Post subject: PM Alternator & S704-1 Relay

Hi,



I'm just wiring up my S704-1 alternator disconnect relay for my Jab, but the 2 documents I have contradict the + & - cable connections.  On the B&C site S704-1_tips.jpg shows them with the negative next to the COM connection, whereas their power distribution diagram for some other alternators shows them reversed, with the +tive next to the COM connection.  Can someone please confirm for me which way it should be for my Z-20 scheme.



Also, in the S704-1_tips.jpg image there is an IN5400 diode between the + & - terminals.  This diode didn't come with the kit of bits I bought from B&C, so do I need to install this as well or not?



You can probably tell from my recent posts that I'm currently doing the firewall forward wiring of my plane, so your input is much appreciated at this, somewhat testing, time for a non-electrical guy!



As always, thanks in advance for your time.



Ian

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