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hd6ep transmission

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deerejohn View Drop Down
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Joined: 13 Dec 2021
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deerejohn Quote  Post ReplyReply Direct Link To This Post Topic: hd6ep transmission
    Posted: 13 Dec 2021 at 2:07pm
new user, posting for husband who doesn't use a computer.  can anyone point us toward a reliable manual for powershift transmission on a hd6ep dozer? thank you.
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deerejohn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deerejohn Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2021 at 2:13pm
Edit to add: we’ve bought both hard copy and downloaded manuals and none of them address the transmission specifically for this model, even when the covers/tables of content say that they include it.
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gemdozer View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gemdozer Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2021 at 4:23pm
Check with MINN PAR they should have it
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DMiller View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2021 at 4:53pm
Should be the same they used in the 7G, I used to have one with that trans.

Parts are Non-existent except some used stuff, for seals will have to go to Hydraulic Cross Matches.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deerejohn Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2021 at 5:30pm
Any idea where the steering micron screen is located on the transmission? Is it behind a couple hoses?
He found the scavenger screen on the right.
Thanks for everyone’s help and patience.
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DMiller View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2021 at 6:44pm
Page 188 of the MINNPAR HD6EP OEM Parts Catalog.  Suction screen is in the (As in Seat) Left Front of Trans case.  The steering pump is Engine Mounted beneath the Injection Pump, takes a suction from that point of the trans.  If a late enough model will be the trans high pressure filter mounted in front of it.

https://www.minnpar.com/manuals3.aspx?FName=ALLIS_CHALMERS_CDS_PARTS_MANUALS&SFName=ALLIS_CHALMERS_DOZER_CRAWLER_PARTS_MANUALS

Go to my old posts on my 7G, the 6EP is nearly identical.  The longest post was as reworked "Fat Allis".
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DMiller View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2021 at 6:46pm
The way this trans works, the Main pump on converter takes suction from the trans sump AND the second sump in the above location, to feed that sump and the trans equipment, the Steering pump also takes suction of that mentioned Second sump.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote deerejohn Quote  Post ReplyReply Direct Link To This Post Posted: 14 Dec 2021 at 7:37am
Thanks again. This has been a frustrating fix for a guy who can normally fix any part of any machine and your help is invaluable.
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HD6 Merv View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6 Merv Quote  Post ReplyReply Direct Link To This Post Posted: 14 Dec 2021 at 11:28pm
suction screen on lower LHS of transmission, sucks from steering clutch case and  feeds both steering pump and main transmission pump. The screen and pump on right side of trans only scavenges oil from transmission and returns it to steering clutch case
tits tyres and tracks

they all cost you money
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