Pulling Forum - D-12/10 series 3

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D-12/10 series 3

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Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=156280
Printed Date: 23 Nov 2024 at 4:44pm
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Topic: D-12/10 series 3

Posted By: Allisman01
Subject: D-12/10 series 3
Date Posted: 09 Dec 2018 at 3:25pm

Can anyone give me the ground speeds for one? I can't find the speeds anywhere. Friends looking a building a puller but don't know what the ground speeds are. Or could anyone tell me what the percentage of drop a power director drops ground speed? Thanks guys!

Replies:

Posted By: Gary
Date Posted: 09 Dec 2018 at 4:01pm

Link to Tractor Data:

D-14 Power Director Speeds

http://www.tractordata.com/farm-tractors/000/0/1/16-allis-chalmers-d14-transmission.html" rel="nofollow - http://www.tractordata.com/farm-tractors/000/0/1/16-allis-chalmers-d14-transmission.html

D-12

http://www.tractordata.com/farm-tractors/000/0/1/15-allis-chalmers-d12-transmission.html" rel="nofollow - http://www.tractordata.com/farm-tractors/000/0/1/15-allis-chalmers-d12-transmission.html

Posted By: Allisman01
Date Posted: 09 Dec 2018 at 7:41pm

Thank you Gary! I tried tractor data for the D-12 . It only shows the series 1 and 2. The series 3 had the high and low.

Posted By: DrAllis
Date Posted: 10 Dec 2018 at 7:15am

D10/12's never had a Power Director. The series 3 models had an optional Hi/Low auxiliary transmission ahead of the normal 4-speed. With 12.4 x 24 rear tires @ 1650 RPM in direct drive the speeds are 1.9- 3.7- 4.8- 12.1 MPH. This would be the same as normal 4-speed tractor speeds...direct drive. When shifted into Low (under-drive) the speeds become 1.1- 2.2- 2.8- 7.1 MPH.

Posted By: Allisman01
Date Posted: 10 Dec 2018 at 6:07pm

That is exactly what I needed to know Dr. Alllis. Thank you very much.!!!!!