Construction and other equipment - allis chalmers hd7g

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allis chalmers hd7g

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=80689
Printed Date: 29 Jun 2025 at 9:46pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: allis chalmers hd7g

Posted By: kinghunter
Subject: allis chalmers hd7g
Date Posted: 22 Nov 2013 at 4:47pm

i have a allis chalmers hd7g that all of a sudden stops moving now after about 40 minutes of use. then you have to waite a hour and you can start back up and run for 40 minutes again and will stop moving anyone have this issue before. i'm just alittle confused as it pushes and lifts great and when it hits that 40 minute mark get ready cause it will stop moving. thanks for any help

Replies:

Posted By: doctorcorey
Date Posted: 22 Nov 2013 at 9:27pm

Sure sounds like cloggy filters. I assume you have gauges for the tranny like mine so, what are you pressure readings? Do the power brakes still have power when the machine will not move?

Posted By: kinghunter
Date Posted: 23 Nov 2013 at 3:28pm

I WILL CHECK GAUGES AND BRAKES AND LET YA KNOW its just weird acting. thanks

Posted By: DMiller
Date Posted: 23 Nov 2013 at 4:17pm

Corey is right, probably clogging screens/filters if they have not been changed in a while. I am currently updating my machine as the trans finally lost Rev altogether the other day. Have a trans and converter out of a donor machine going in soon.

Posted By: DMiller
Date Posted: 23 Nov 2013 at 4:33pm

Corey, you have a PM

Posted By: DMiller
Date Posted: 23 Nov 2013 at 4:37pm

Kinghunter, dial down to page 3 this post for expanded views on 7G trans:

http://www.allischalmers.com/forum/forum_posts.asp?TID=78780&title=finally-got-in-a-good-day