U-joints 80-R3 Sickle bar mower
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=180310
Printed Date: 29 Apr 2024 at 8:53am
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Topic: U-joints 80-R3 Sickle bar mower
Posted By: kmw3006
Subject: U-joints 80-R3 Sickle bar mower
Date Posted: 04 May 2021 at 1:17pm
| I was given an 80-R3 mower that previous owner didn't need. It had been sitting around outside for years. My first project on it is to change the ujoints. Been talking to 2 different AGCO dealers. One says one size, the other says there is 2 sizes, depending on the shaft, a normal use or a heavy duty use shaft. My questions for now are, is there 2 styles of shaft and how do I tell the difference. Thanks |
Replies:
Posted By: Mikez
Date Posted: 04 May 2021 at 1:58pm
| welcome to forum. put a picture on here. Think the heavy duty was for if you were going to tow a hay conditioner behind mower. |
Posted By: Tracy Martin TN
Date Posted: 04 May 2021 at 6:41pm
|
Measure the size of the cross. Diameter of cups, and outside to outside of cups, that will tell you the size. HTH Tracy ------------- No greater gift than healthy grandkids! |
Posted By: kmw3006
Date Posted: 04 May 2021 at 7:27pm
|
Posted By: kmw3006
Date Posted: 04 May 2021 at 7:39pm
| There's the pic of shaft parts. The solid piece (slides to PTO) is approx. 11/16x13/16. The hollow (mower) piece is approx. 1 3/16 x 1 1/16, wall thickness 1/8. Working non other measurement. |
Posted By: Ed (Ont)
Date Posted: 04 May 2021 at 7:44pm
| You may have to get a bit more sophisticated with your measurements. Measure with micrometer to get correct u-joint. |
Posted By: kmw3006
Date Posted: 04 May 2021 at 8:23pm
 These were the only recognizable symbols on the body of either u-joint. The other joint had Made in USA 24 on the end of the cap |
Posted By: HD6GTOM
Date Posted: 04 May 2021 at 9:14pm
| Take the whole thing to your local NAPA store. If its like ours, they will measure up everything and have you going asap. Buy the better grade u joints. Their cheep ones are Chinese made. |
Posted By: kmw3006
Date Posted: 06 May 2021 at 6:21am
| I did give that a try, but I they couldn't find one that matched the groove for the retaining clip. |
Posted By: Alvin M
Date Posted: 06 May 2021 at 8:25am
| Std Part # 70534235 check 12R retaining ring is inside on cup HD is 70521720 check 14R retaining ring is outside of cup |
Posted By: kmw3006
Date Posted: 06 May 2021 at 10:20am
| Thanks to all for the great advice so far. Alvin are those AGCO stock numbers or can I take them to other places such as auto parts store. Closest AGCO dealer is an hour away and their hours don't match well with mine. Again thanks to all. |
Posted By: Alvin M
Date Posted: 06 May 2021 at 10:29am
| Yes they are AGCO part numbers |
Posted By: Mikez
Date Posted: 06 May 2021 at 10:34am
| yes that’s an agco part number |
Posted By: kmw3006
Date Posted: 03 Jul 2021 at 1:35pm
| Got the ujoints. one fit real nice, real easy. Other one a bear to get in and ended up ruining it. Replaced it, cleaned yokes up good but was still difficult to get in, but it's done. Got it hooked to the tractor but I'm doing something wrong. Whole thing sits crooked and pivots in toward tractor when lifted. Guessing to fix crooked I have to lengthen the lower left link. Don't see how to get the pivot out |
Posted By: Mikez
Date Posted: 03 Jul 2021 at 2:56pm
| what tractor you hooking to. Put picture of it hooked |
Posted By: kmw3006
Date Posted: 03 Jul 2021 at 10:44pm
| Hooking up o a Farmall 450. Tryed to link a.picture but keeps saying file to big. I'll keep trying though |