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Discussion Starter · #1 ·
I'm looking for a project tractor, and a 400 could be a possibility. From what I remember, it seemed to me that the 400 turning radius was not as tight as the 420 or 430's I used a long time ago.
Tractor data lists turning radius for 420/430 at 2.2 feet but no info on the 400.

Does anyone have a manual or spec sheet for a 400 that would be willing to look it up ?

Also I'd like to know if the later (79-82 ? ) 400 had tighter turning than the '75 -78 models ?

Were there any other changes from early to late 400's that you guys can think of besides the stripe and number color on the side of the hood ?

It's been a long time since my experience with these and I'd appreciate your help. Thanks
 

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I'm looking for a project tractor, and a 400 could be a possibility. From what I remember, it seemed to me that the 400 turning radius was not as tight as the 420 or 430's I used a long time ago.
Tractor data lists turning radius for 420/430 at 2.2 feet but no info on the 400.

Does anyone have a manual or spec sheet for a 400 that would be willing to look it up ?

Also I'd like to know if the later (79-82 ? ) 400 had tighter turning than the '75 -78 models ?

Were there any other changes from early to late 400's that you guys can think of besides the stripe and number color on the side of the hood ?

It's been a long time since my experience with these and I'd appreciate your help. Thanks

I looked at my operator's manual and it doesn't address the turning radius or I didn't find it. If I ever find my service manual I will look in it and see if it mentions anything about it. My manual is currently MIA so bear with me. :dunno:
 

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As far as changes and this is only what I know, I am sure there were others:

1. Exhaust is either out the front or the side depending on year. I think the later ones are out the side as mine is a 1982.

2. On the control levers there were two styles, one that was greased with a zerk fitting and one that wasn't.

3. The early ones had a dipstick to check the hydro oil, the later ones have a sight tube.

I am sure there are other minor differences but I am not aware of them or can't remember. I have only had mine two years so I still learn something about it every now and again.
 

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Turning radius stayed the same through the years. Not the best mower but is still covers alot of ground with the 60" deck. Mowed with the 400 and the 420 and didnt get a noticable difference in mowing times.
 

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Found my service manual. It doesn't say anything about the turning radius. If you are really concerned about turning radius then I recommend you look at the 425/445/455 series of tractors. They turn really well plus they made an AWS version.
 

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Discussion Starter · #7 ·
Found my service manual. It doesn't say anything about the turning radius. If you are really concerned about turning radius then I recommend you look at the 425/445/455 series of tractors. They turn really well plus they made an AWS version.
If they have foot hydro control- forget it. I want steering brakes
I've seen lots of posts on here about trouble steering with a blade or blower.
Guess what? JD had the answer with steering brakes in the 1960's but discontinued them for some unknown reason. They also gave you positraction at the same time.

I really just would like to know if the tighter steering for 420/430 was my imagination- I really don't think so but ya never know.

Perhaps a couple of you guys would be willing to do a little experiment......
 

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Turning radius is way better on the 420,430 at 2.2 feet. The 4X5 tractors are at 2.16 feet. Some people with 400's on weekendfreedommachines.com measured about 18 feet for outer circle measurements on a turn. Like I said it didn't cut my mowing times down all that much
 

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I have a 400 and you have to turn the wheel a million times to get the front wheels to turn. I looked at a 420 and the turning radius seemed like it was tighter, but I dont know if it was only because the steering ratio is much quicker. I will check on that for ya:00000057:
 

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The later 420, 430 etc tractors have a tighter turning radius than the old 400. The 400 has a hand control hydro, and dual foot brakes. Keep in mind that attachments for the later 4XX series tractor will not fit on the front of the older 400, The 400 attachments are pretty much unique to that tractor, it is actually a little bigger than the later 4xx series machines.
 

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Leinie
Took tractor out today, I marked the ground next to my left rear tire outside edge, I then turned steering wheel to the left all the way then proceeded to drive in a circle. that circle measured 8 feet across. Keep in mind that my tires are set wide,weights,chains and snow blower. Dont know if that will help you in your decision or not
 
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