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hd6ep transmission

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=185104
Printed Date: 01 Nov 2024 at 10:38pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: hd6ep transmission

Posted By: deerejohn
Subject: hd6ep transmission
Date 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.

Replies:

Posted By: deerejohn
Date 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.

Posted By: gemdozer
Date Posted: 13 Dec 2021 at 4:23pm

Check with MINN PAR they should have it

Posted By: DMiller
Date 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.

Posted By: deerejohn
Date 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.

Posted By: DMiller
Date 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%5FCHALMERS%5FCDS%5FPARTS%5FMANUALS&SFName=ALLIS%5FCHALMERS%5FDOZER%5FCRAWLER%5FPARTS%5FMANUALS" rel="nofollow - 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".

Posted By: DMiller
Date 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.

Posted By: deerejohn
Date 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.

Posted By: HD6 Merv
Date 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

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