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d17 neg groung
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mattb View Drop Down
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Joined: 11 Jan 2011
Points: 348 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mattb Quote  Post ReplyReply Direct Link To This Post Topic: d17 neg groung
    Posted: 21 Mar 2017 at 8:06pm
Im wanting to hook the generator on my series 1 d17 for neg ground my voltage regulator says pos or neg round. What all wiring to i have to change? Reason is its a diesel and have to use factory gen for power steering
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DSeries4 View Drop Down
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Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7539 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Mar 2017 at 8:36pm
The factory generator will work for both positive and negative ground.  Just need to change around some wires in the wiring harness - switch the battery cables and wires on back of the ammeter.  Once that is done, flash the generator by shorting the BAT and GEN terminals on the regulator.  A few more wires to switch around on gassers but nothing really hard.  I have all of mine switched to negative ground on original generators.
'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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mattb View Drop Down
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Joined: 11 Jan 2011
Points: 348 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mattb Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 2017 at 3:37pm
ok thanks....do I flash it with it running or engine off?
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wbecker View Drop Down
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Joined: 29 Oct 2009
Location: STL
Points: 837 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wbecker Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 2017 at 3:40pm
Off.
Allis B, IB, Low B, G, D10, JD M, 8KCAB, C152
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Gerald J. View Drop Down
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Joined: 12 Sep 2009
Location: Hamilton Co, IA
Points: 5636 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gerald J. Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 2017 at 4:06pm
Absolutely flash before starting the tractor after changing the battery polarity. If you start it without flashing the generator will build with the old polarity and likely fry the voltage regulator when it's cut out closes with the battery and generator of opposite polarities. Worse than a short on the battery and the generator.

Gerald J.
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