Farm Equipment - Disc harrow

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Disc harrow

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=212597
Printed Date: 24 Oct 2026 at 7:04pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Disc harrow

Posted By: ACinSC
Subject: Disc harrow
Date Posted: 24 Oct 2026 at 4:15pm

Finally stirred some dirt with my D 15 today. It ran well. Did find the discs on one gang are turning independently. Guess I'll have to pull that axle and get it built up and square? Since the damage is already done, it can run as is a while. Always something. Thanks

Replies:

Posted By: Ray54
Date Posted: 24 Oct 2026 at 6:25pm

They need to be tight. Square has nothing to do with it really. I have 9 inch spaced primary tillage offsets one IH one JD both have round axles. I a Harbor Freight cheapy end wrench to bind against the frame on one end and 3/4 ratchet and 3 or 4 feet of pipe. Then I switch to a breaker bar and six or 7 feet of pipe for several more turns. And sometimes that will loosen up after a day bouncing over rock ledges, and need another round of tightening.

Of course taking it all apart and wire brushing blades and spacer faces, so no rust helps keep things tight too.