Go BottomNo toe-in adjustment
 | MichaelSnyder
Join Date: Jun 1999 Posts: 0 
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1999-11-04 9425
With all the talk of turf damage on the JD 4000 series units, I decided to check the toe in on our 4100 last night. It doesn't seem to have an adjustment, or am I just clueless? Not that its really been a big problem, but we do have a few trees that require full steering to circle around. This tends to leave a mark in the lawn from the front outside wheel. Watching,studying this phenomenon one day, it seems like the inside front tire should have a little more pull to it,and that the outside is doing all the work. Got the ol' tape measure out, couldn't get very precise this way but I could tell it definitely has toe-in. Adjusting this to (near 0) or 0 toe-in...I think would ease this problem a bit....No?...Any Ideas or am I forced to live with it?
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| bo pikas
Join Date: Posts: 1
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1999-11-04 9435
Mls- a while ago when there was heavy discussion of turf scuffing, some guy did a pretty good job on describing toe in adjustment on tractors. Bear with me, if memory serves he measured at front of the tires center of thread to center and at the back of the tire. Excessive toe in was then adjusted by turning the tie rod ends in or out. I don't have this problem with my 870 but this guy did a wonderful job of analysing the problem.. I searched this board for the article but the board seems to only go back about 8 pages. Maybe the Webmaster archives the articles to save on disk space . Then again, maybe the same guy will read this post and do it again. I'm going to look at my machine tomorrow to see if it is adjustable. This guy went all out and did adjustments with field tests and I believe he concluded that 0 toe in was best. Bo ....
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| MichaelSnyder
Join Date: Jun 1999 Posts: 0
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1999-11-05 9450
The biggest problem Bo, The tie rods don't look adjustable. Everything seemed welded. Maybe the 4100 is the only only not adjustable..I don't know. ....
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| Brent
Join Date: Posts: 1
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1999-11-05 9456
As more and more people buy these little tractors for lawn maintenance maybe they(Yanmar=JD, and others will make some changes). As I recall the 4100 is still made by Yanmar, and the rest of the 4000 series is American made with Yanmar engines. A few years ago people bought these little tractors to turn their gardens with and to do other "traction needed" jobs. As people started using them in multi purpose roles, the manufacturers did not follow suite and modify their product. A Yanmar in Japan the size of your 4100 would be used exclusively for tilling up rice fields, so there would be no need for toe in adjustment. Does anyone know if this toe in adjustment problem is an issue with the larger tractors in the 4000 series? ....
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| Ted
Join Date: Posts: 1
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1999-11-05 9457
As a professional landscaper with a fleet of orange grass eaters, I can tell you from experience, toe-in, toe-out is not the 'scrubbing' culprit. All tractors are designed for max. turning ability, 4wd, or 2wd, in order to acheive this the inside wheel turns sharper into the corner than outside, since it has to make a small radius turn. The resulting geometry equals scuffed ground. The easiest solution, don't try full lock turns on grass. Try cutting in 2 different directions (90 deg. from each other), when you get to a tree 'pass' it then get the 'tail' you left going the other direction, or like we do, cut the 'detail' stuff (ditches, around trees, flower beds, etc.) with a small mower, then 'blast' through the big stuff..... Best of luck. ....
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| bo
Join Date: Posts: 1
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1999-11-05 9464
Yep, understand your problem, went to the barn after I got your post and checked my 870- fully adjustable- locknut and screwed in tie rod ends. Also attempted to check the toe in and at best came up with 1/4 inch toe in. But it all depends where you hold the tape. As it is I scuff the grass when I turn too sharp or fast and certainly when I forget to throw it out of 4 wheel. Slow on turns and very little scuff if any at all. But as the guy with the orange machines said in his post, I don't attempt to circle a tree but "miss it" and then pick up the tail on the next pass from a different direction. We have heavy clay soil and the grass roots can't go down very far,If my machine scuffed I would probably kill all the grass. One time, in a hurry and in 4 wheel, I made a fast turn and klled all the grass for about 10 feet. It came back but took most of the summer. Wife not thrilled. If your tie rods are welded then that's it for adjustment, owners manual says nothing? bo ....
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