Construction and other equipment - H3 jumps out of 3rd gear?

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H3 jumps out of 3rd gear?

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=21139
Printed Date: 19 Jul 2025 at 5:42pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: H3 jumps out of 3rd gear?

Posted By: chevytaHOE5674
Subject: H3 jumps out of 3rd gear?
Date Posted: 21 Nov 2010 at 9:29am

My H3 with shuttle clutch has started jumping out of third gear very frequently. Is this a common issue with a common fix? Or do I just start tearing the shifter apart and seeing what is worn? Thanks

Replies:

Posted By: Kipn
Date Posted: 21 Nov 2010 at 12:15pm

Probabaly the same problem most D15 tractors have with 3rd gear. It's inside the tranny. The actual gear gets worn. I have heard that it's an expensive fix. Search on the tractor page for popping out of 3rd gear. Lotsa posts.

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1961 H3

Posted By: chevytaHOE5674
Date Posted: 21 Nov 2010 at 4:07pm

That's what I was fearing... Hmmmm

Looks like to check anything out I have to take the shifter cover off the side of the tranny. Which from the book looks like it is behind the steering brake and final drive. Looks like it will have to wait until spring.

Posted By: Jack(Ky)
Date Posted: 21 Nov 2010 at 5:09pm

Is it popping out under power or going down hill. If it just falling out going down hill you can fix it pretty easy.JP

Posted By: chevytaHOE5674
Date Posted: 21 Nov 2010 at 5:33pm

It is popping out under power(just driving not dozing) on level ground. But if you run it for a little bit in 4th before going to 3rd it seems to hold in 3rd better.