Momentary start power switch or not?
in 912iS Technical Questions
9 years ago
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Thank you for the diagram Bill. It would be great if we could do this with a Two pole switch but I think we need Three poles because in addition to the starter and twelve volt lines we also have to connect the two grounds.
I can't find a three pole mil spec switch just the 4 pole switch which is eaton/microswitch 4TL1 - 50 or (MS 27406 -2) so we have a spare pole.
Im not good at diagrams but here is an image. I thought to use terminals 7-8 for earth, 4-5 for battery and 1-2 for the momentary start.
The backup battery switch is also a 4 pole 4TL1 - 3 - a Two position switch.
We would use terminals 7-8 for earth, 10-11 for battery and wire the start power line through contacts 2-3 so in the "on" position the start power battery line is disabled , but the "start" momentary position of the start power switch is still enabled.
Hope this does not confuse the situation but I think this arrangement gives effect to what Rotax say we need without compromising reliability.
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WiringEng4PDTstartswt.pdf (You do not have access to download this file.)
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Binder1.pdf (You do not have access to download this file.)
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