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Siemers 
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Joined: 04 Mar 2024
Location: SE MN
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 Topic: 7040 Info
Posted: 04 Mar 2024 at 9:25pm |
Hello everyone, I am new to the forum. Hoping for some help. I am trying my hand at farming for the first time this year. My dad & I bought a 7040 Allis this winter. We don't know anything about orange tractors but the one we got is very clean with only 2300 hours on it. Tranny has the power director in it. Tractor Data says 136HP @ the PTO.
Anyway, I am looking to buy a field cultivator for it but I don't know how big a 7040 can handle??? I can find 24 foot wide cultivators all day for sale but my gut tells me that size is too big? I know it depends on soil conditions but can anyone shed light on this? I'm in SE MN and the farm is my grandpas with good black dirt.
Thank you!
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jiminnd
Orange Level
Joined: 16 Sep 2009
Location: Rutland ND
Points: 2233
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Posted: 04 Mar 2024 at 9:39pm |
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24 foot should be ok, you will need duals and some weight. depending on how many acres smaller may be better. I had a 7030 and used 24 foot for the tractor its whole life.
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1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner)
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Siemers
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Location: SE MN
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Posted: 04 Mar 2024 at 9:49pm |
Thanks for the info jiminnd How fast & deep could you run it? I would like to run it @ 4" deep. I don't have duals on it, hopefully within the next year. I do have Lots of weight up front.
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jiminnd
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Joined: 16 Sep 2009
Location: Rutland ND
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Posted: 04 Mar 2024 at 10:00pm |
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I think about 3 to 4 inches at 5mph.
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1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner)
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DrAllis
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Joined: 12 Sep 2009
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Posted: 04 Mar 2024 at 11:30pm |
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Tractor must have duals and good rubber on all four rear tires. A field cult ain't a chisel plow. 1/2" too deep and it will pull much harder. Four inch sweeps will pull easier than 6 inch sweeps. I have customers who pull 28 feet behind a 7040 and think that's just right. I have others who think 24 ft is just right.
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Mikez
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Joined: 16 Jan 2013
Location: Usa
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Posted: 05 Mar 2024 at 12:49am |
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Get yourself manuals for that tractor.
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NEVER green
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Joined: 28 Feb 2013
Location: MN.
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Posted: 05 Mar 2024 at 8:30am |
Remove the weight up front.
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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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Tbone95
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Location: Michigan
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Posted: 05 Mar 2024 at 9:57am |
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Definitely want duals. I don’t know your soil and lay of the land. I pull 24 feet with a 7045 which is an updated version of your 7040 so to speak. I also pull an Unverferth rolling harrow behind the cultivator but I needed wheel weights to be satisfied pulling all of that.
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DrAllis
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Posted: 05 Mar 2024 at 10:05am |
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If it was mine, I'd want fluid in the rear tires. You may need fluid (1600 lbs) and you may not. close call on that.
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Tbone95
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Location: Michigan
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Posted: 05 Mar 2024 at 12:05pm |
 DrAllis wrote:
If it was mine, I'd want fluid in the rear tires. You may need fluid (1600 lbs) and you may not. close call on that. |
I have fluid and inner weights! Not so much for the field cultivator but it plows a whole lot better now. And I keep the front weights on, when it starts pulling harder the nose stays down. With all that it will power hop at the worst case scenario.
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Siemers
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Posted: 05 Mar 2024 at 4:36pm |
Thank you everyone for your input. I was afraid I would need duals. Unfortunately I am on a fixed budget so It might be a little bit before the duals get put on. The other problem I have is since I bought this tractor with my dad, we kinda have to agree on things to do to the tractor. He is against putting duals on the tractor. He said he talked to an old Allis Chalmers mechanic that claimed duals are hard on the rear ends of those tractors? Anyone heard of this? I have seen plenty of 7040's with duals on them.... |
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bigal121892
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Location: Nebraska
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Posted: 05 Mar 2024 at 5:47pm |
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If that were true, there would be a lot more rear end failures, because just about everybody uses duals.
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DrAllis
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Posted: 05 Mar 2024 at 5:47pm |
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How about THOUSANDS of them with duals !!!! The old mech needs to just go away with bad information like that.
Edited by DrAllis - 05 Mar 2024 at 5:48pm
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Siemers
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Posted: 05 Mar 2024 at 6:56pm |
Thats kinda of what I was thinking, lots of old tractors with duals. I will try and post a picture of my 7040 later. Thanks everyone for the help. |
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plummerscarin
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Joined: 22 Jun 2015
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Posted: 05 Mar 2024 at 8:56pm |
This is mine pulling a 30ft.  Loaded tires with duals. Fair amount of slippage without duals
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8070nc
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Location: North Carolina
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Posted: 06 Mar 2024 at 6:04am |
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We ran a 7040
8000 hours with duals with liquid in all 4 tires
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1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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Acguywill
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Posted: 06 Mar 2024 at 9:35am |
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I would look for a cultivator with bolt on extensions. That way you could remove them if you can't pull the full width with your current tractor setup. If in the future you get a set of duals and add some weight you just bolt the extensions back on. You must have easy pulling soils to be able to pull 24 ft with 140hp. We had an 8070 fwa with 20.8 radial duals, full weights front and rear, and fluid in the fronts and inner rear tires pulling 29 ft with harrow and packers and that was all it could do. At 4 inches deep I think it was 4th gear with the powershift transmission and stay away from anything that looked wet.
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Tbone95
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Location: Michigan
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Posted: 06 Mar 2024 at 10:06am |
plummerscarin wrote:
This is mine pulling a 30ft.
Loaded tires with duals. Fair amount of slippage without duals |
I see you have the front weight on too. I was never happy with my 7045 pulling until I got the total weight up around 15,000 pounds.
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DrAllis
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Posted: 06 Mar 2024 at 12:00pm |
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What the OP fails to understand is using duals makes the field cultivator do a better job. It doesn't have tracks 4 inches deep to make go away. Tractor performs better as does the field cultivator. This assumes FOUR GOOD tires, not bald.
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Leon B MO
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Posted: 06 Mar 2024 at 7:20pm |
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First, duals are a must especially in loose soil. We pull a 22' Great Plains field cultivator with 3 bar harrow and rolling baskets. It makes a nice seed bed. I can pull it with the 7020 but only 4.5 mph. The 8050 will handle it at 6 mph plus and the speed makes a more level seed bed. Don't be afraid of a smaller tool pulled at a higher speed. It does give you options with your pd trans. Also the older ones will not handle vegetation nearly as well as the newer models. Wider sweeps and less shanks will get through more trash. Ours has 9" sweeps. Wish you the best.
Leon B Mo
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Uncle always said "Fill the back of the shovel and the front will take care of itself".
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Siemers
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Posted: 07 Mar 2024 at 6:55pm |
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Thanks again for all the input everyone. I tried to upload a picture of my tractor but I could not figure it out...
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