HD11 E Direct Drive
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=130662
Printed Date: 29 Jul 2025 at 2:13am Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD11 E Direct Drive
Posted By: Gargoyle
Subject: HD11 E Direct Drive
Date Posted: 30 Oct 2016 at 7:33pm
Serial # 8878 I lost trans pressure. I figured that it was just the pump losing prime, as the 11 had been sitting for a while. I pulled the bleeder on the pump and nothing..
Anyway, after crawling under it, I found a rod that plunges into the front right of the trans had sheared off. Appears that the trans emptied itself out of the fitting that this rod fits into.
This rod is connected to the clutch/driveline brake and sits to the right of it, but I can't figure out what it does. It connects to the clutch brake linkage to the right of the shortshaft. It runs back towards the trans and enters the trans on the lower right front corner. It has a fitting that I would call a plunger.
I just spent an hour on the parts manual on minnpar and I can't find anything like this. It is not include in the drawings for the clutch brake or the trans lubrication system.
Any ideas where I could look for this?
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Replies:
Posted By: Ray54
Date Posted: 30 Oct 2016 at 8:15pm
Never been around a HD11 but 5 and 9 have transmission lock that is a rod from clutch leaver to transmission. There is a rubber boot to keep oil in. The lock is activated by engaging the clutch. Is it possible that the broken rod on yours is part of a this mechanism?May only need the rubber boot to stop oil leakage.
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Posted By: Gargoyle
Date Posted: 31 Oct 2016 at 8:01pm
You may be right about this. When I got the dozer a couple of years ago, it was dripping there. I found a cv boot and it stopped the leak.
The shaft, which appears to be about 1/4" diameter, sheared off. In order to stop the leak, if I can't find a replacement, I'd have to cap this off somehow.
I'll head back to the minnpar parts list to see if I can find the part
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Posted By: Gargoyle
Date Posted: 31 Oct 2016 at 9:18pm
I went back to minnpar and found the plunger for the trans lock. Appears that I just ordered the last one...
Thanks for the input Ray
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Posted By: Gargoyle
Date Posted: 07 Nov 2016 at 9:19pm
I ordered the trans lock shaft from Minnpar.. Appears to be that last one in stock .. Too bad it's the wrong one. It's about an inch and a half too short and has a blade end, rather than a point, on the end that goes into the trans.
Luckily the old one didn't fall out of the trans. I have both pieces. It appears to be cast iron.
Suppose a used one that is in one piece might be found anywhere?
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Posted By: gemdozer
Date Posted: 09 Nov 2016 at 3:19pm
Do you have the pluger look parts # I have some models for HD11
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Posted By: Gargoyle
Date Posted: 10 Nov 2016 at 8:11pm
Hi Gem The part # appears to be 644324, based on my reading of the manual. I'll take a picture of my busted one tomorrow and post it here.
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Posted By: Gargoyle
Date Posted: 11 Nov 2016 at 9:16am
Posted By: Gargoyle
Date Posted: 11 Nov 2016 at 9:20am
Posted By: Gargoyle
Date Posted: 11 Nov 2016 at 9:21am
Ok so my new computer is giving me grief. I keep uploading pics and get nothing.. I'll sort it out
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Posted By: gemdozer
Date Posted: 11 Nov 2016 at 1:34pm
I check tomorrow or monday for the plunger am still have a parts manual
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Posted By: Gargoyle
Date Posted: 12 Nov 2016 at 7:33pm
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