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How does a 7000 Allis have 12 speeds?

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DougG View Drop Down
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Joined: 20 Sep 2009
Location: Mo
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DougG Quote  Post ReplyReply Direct Link To This Post Topic: How does a 7000 Allis have 12 speeds?
    Posted: 30 Dec 2016 at 4:21pm
I think I've asked this question before, can't remember, any ways I kno a 7000 is just a glorified 200, but how did the engineering guys get 12 speeds in the 7000 ,tractor?
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Charlie175 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Charlie175 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Dec 2016 at 4:27pm
4 gears with 3 speed power shift.

Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD
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injpumpEd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 30 Dec 2016 at 4:56pm
The 190/200 power director is high for direct drive, and then low is under drive or a gear reduction. The 7000 tractor added the third speed to the power director which is over drive. Works a lot like an Oliver/White Over/Under.
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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DougG View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DougG Quote  Post ReplyReply Direct Link To This Post Posted: 30 Dec 2016 at 5:24pm
So more clutches in the PD? Another clutch pack ? Curious how this works

Edited by DougG - 30 Dec 2016 at 6:34pm
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MACK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 30 Dec 2016 at 9:23pm
Three splined shafts ( running different speeds) coming into clutch assembly. Only one clutch pack engaged at a time.   MACK
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DrAllis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2017 at 9:44am
Low range (under-drive) has 4 discs.....Medium range (direct-drive) has 3 discs.....High range (over-drive) has 2 discs. These 70261212 clutch discs are stronger and transmit more torque than the older P.D. clutch discs and will not break in two. Direct fit into older tractors.
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