My John Deere 750a replacement

Drillman

Member
Mixed Farmer
Just going back to the subject of whether a 724 will pull this drill, this must be a situation where one of those power units that fitted between tractor and implement would be useful. Can’t think what there called but remember an article on them in Power Farming back in the late 80s. An extra drive axle with a pair of wide tyres on it with a 120-150hp engine sat on top would make a hell of a difference and spread weight around better. Would just need some sort of vario drive with a pull sensor on the drawbar. Be ideal for someone like @Clive who wants to run light but pull big. Be ok for road moves as well. Just an extra pivot point.
 

Clive

Staff Member
Arable Farmer
Location
Lichfield
Just going back to the subject of whether a 724 will pull this drill, this must be a situation where one of those power units that fitted between tractor and implement would be useful. Can’t think what there called but remember an article on them in Power Farming back in the late 80s. An extra drive axle with a pair of wide tyres on it with a 120-150hp engine sat on top would make a hell of a difference and spread weight around better. Would just need some sort of vario drive with a pull sensor on the drawbar. Be ideal for someone like @Clive who wants to run light but pull big. Be ok for road moves as well. Just an extra pivot point.


nice idea - does such a thiung exist ?

I do think we will be OK power wise though but i like your thinking !


complex to make work with a vario tractor though I guess
 

Drillman

Member
Mixed Farmer
nice idea - does such a thiung exist ?

I do think we will be OK power wise though but i like your thinking !


complex to make work with a vario tractor though I guess
Not sure on the technicalities but there was stuff like that been trialed with NIAE or something like that in the 80s. I just remember seeing a pic of one with a 90hp fiat on the front pulling some massive discs. The power yoke thingy was 110hp so basically turned it into a 200hp 6 wheel drive power unit.

Never seen or heard of one since so not sure on the commercial viability of such a thing but for occasions where all that’s needed is to pull something trailed that needs a fair pull it would provide a option rather than a bigger tractor.

I’m sure fairly soon someone with a better memory than me will pull more details up
 

Clive

Staff Member
Arable Farmer
Location
Lichfield
Not be simpler to buy a bigger tractor?

It would, if needs be that would be the best solution I’m sure, I would prefer not to however !

A 724 can be taken to 280hp I’m told as well and that engine does so in other models, again I would rather not do so however

But I really don’t think we will need to - Horsch recommendation is 230hp plus

I think everyone is thinking like tillage farmers ! - no till soils need far less power than ones that are moved and this drill really isn’t that many more coulters than the 750a it replaces
 

Fred

Member
BASE UK Member
Location
Mid Northants
Just going back to the subject of whether a 724 will pull this drill, this must be a situation where one of those power units that fitted between tractor and implement would be useful. Can’t think what there called but remember an article on them in Power Farming back in the late 80s. An extra drive axle with a pair of wide tyres on it with a 120-150hp engine sat on top would make a hell of a difference and spread weight around better. Would just need some sort of vario drive with a pull sensor on the drawbar. Be ideal for someone like @Clive who wants to run light but pull big. Be ok for road moves as well. Just an extra pivot point.
The Yoke was built by a friend of my fathers , we even tried it , it worked really well , however the project ran out of money and after lots of promises from the usual suspects and charlatans it folded , I believe it ended up in Saudi Arabia and never returned, what killed it apart from cash was the arrival of larger 4wd tractors.
 

Chae1

Member
Location
Aberdeenshire
It would, if needs be that would be the best solution I’m sure, I would prefer not to however !

A 724 can be taken to 280hp I’m told as well and that engine does so in other models, again I would rather not do so however

But I really don’t think we will need to - Horsch recommendation is 230hp plus

I think everyone is thinking like tillage farmers ! - no till soils need far less power than ones that are moved and this drill really isn’t that many more coulters than the 750a it replaces
A 280hp 724 would be handy.
 

tw15

Member
Location
DORSET
Is the fertiliser hopper solid or liquid, if it’s solid what starter fertiliser are you planning to use?

I've gone solid this time because it gives us more seed hopper space when we are not using fert winter(wheat, barley etc). If I want liquid for any reason in the future I could add it as well, to front of tractor on inline on the drawbar

Will place DAP ahead of crops where I want some seedbed N[/QUOTE]


Have a look at tmac agriculture uk website , have used some of their fert and to honest it worked well as a starter hell of a lot of root mass compared to not using it .
 
Location
Cheshire
Why should it not be used? That statement needs an explanation to make it relevant.

There are compromises to be made and the steel spring based coulter down pressure system on the 750 is not as good as a hydraulic system on the cross slot. The pressure changes over the travel of the coulter. Indeed there are some instances where the spring has been replaced with a hydraulic cylinder albeit rare. As far as I can see the rubber sausage suspension compounds these issues and has more scope for early wear. The set up gives more potential for coulter sideways travel whereas on the 750 by the time you get to that point (years later) you can turn the pins round. Just my opinion of course.
 

Fish

Member
Location
North yorkshire
There are compromises to be made and the steel spring based coulter down pressure system on the 750 is not as good as a hydraulic system on the cross slot. The pressure changes over the travel of the coulter. Indeed there are some instances where the spring has been replaced with a hydraulic cylinder albeit rare. As far as I can see the rubber sausage suspension compounds these issues and has more scope for early wear. The set up gives more potential for coulter sideways travel whereas on the 750 by the time you get to that point (years later) you can turn the pins round. Just my opinion of course.

That happened with our old pronto, some of the rubber sausages became soft which allowed the coulter to move about.
Now I'm sure Horsch will have addressed this issue, but I'm equally sure some will fail over time leading to inconsistent down pressure. It will just need to be maintained, like all no till drills, after all the 750 is not exactly maintenance free.
 

SFI - What % were you taking out of production?

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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