Farm Equipment - draft control

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draft control

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=10910
Printed Date: 23 Jan 2025 at 4:30pm
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Topic: draft control

Posted By: cyclone
Subject: draft control
Date Posted: 11 Apr 2010 at 8:16am

I just got a D15 looks almost new and runs like new. after I got it started after it sit for several years. there is a lever on it that is marked draft control. what is this for.it will be used for mowering thanks for any help

Replies:

Posted By: Brian Jasper co. Ia
Date Posted: 11 Apr 2010 at 9:37am

Is this lever on the steering column? If it is, that is the "Traction Booster" control. The Traction Booster is used when plowing or other ground engaging implement. You won't need the T.B. for mowing.

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: Gerald J.
Date Posted: 11 Apr 2010 at 10:08am

Don't know about draft control on a D15. On tractors that I have, draft control is used ONLY for plowing to let the three point vary the depth of the plow so it pulls the same in damp, or dry, or sandy ground. So you don't have to shift gears. But I prefer a constant depth of plowing and tend to not use it. Its no use in mowing because the mower doesn't pull hard, it can make the mower wander up and down needlessly.

Gerald J.

Posted By: cyclone
Date Posted: 12 Apr 2010 at 1:53pm

Brain your right it does say traction booster.I was sitting at this computer and was thinking about something.I think you guys for your reply.the tractor has a snap coupler hitch.it seem to me it is better than a three point. garry

Posted By: Bill Long
Date Posted: 12 Apr 2010 at 2:16pm

If I can recall there are two levers on the lift side of the steering wheel controls. I think the larger lever is for the lift. The smaller lever is for the draft control. If you are not using draft control leave the smaller lever down.

Someone correct me if that is wrong. My 76 year old head cannot remember everything.

Good Luck!

Bill Long

Posted By: Brian Jasper co. Ia
Date Posted: 12 Apr 2010 at 5:26pm

According to my D17, you're backwards Bill. The little lever lifts and lowers, the bigger one adjusts the traction boost. Don't feel bad about remembering. I'm only 40 and have trouble remembering stuff too. The doctor says I have an excuse though. Doc says I have "Sleep Apnea". It's where you stop breathing during the night at times. It causes reduced oxygen and increased carbon monoxide levels. One of the things affected is memory...

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: DREAM
Date Posted: 12 Apr 2010 at 8:34pm

Yeah Brian, I have that too. Thought I was losing my mind for awhile there. Now I realise that i'm just kinda dumb and have a medical condition.LOL!

Sorry, no help on the draft control. I bet it would be in the operators' manual though.

Posted By: Lonn
Date Posted: 13 Apr 2010 at 9:34am

Correctly set the draft control or Traction Booster doesn't change plowing depth only weight transfer.

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Posted By: JimD
Date Posted: 13 Apr 2010 at 9:51am

I have a D15 II. The larger lever is the actual lift. The smaller is traction boost.

I functions like this:
The lever sets the sensitivity. Higher is more sensitive, and can be so sensitive it will aise and lower the impliment.

As you plow, you use the large lever to drop the plow. When it hits a firm spot, the rearward pull increases on the plow. When it hits the level you set at the lever, it tries to lift the plow very slightly. This will pull up on the ground, and force the rear tires into the ground harders, and so increasing or boosting traction. As soon as the load is gone, the lift drop back down.

Set correctly, you will hear a chatter of it working, but never see it mover, or see any difference in the plow depth.

It's one of Allis' great inventions.

JimD

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