750a A very different approach

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Pre disassemble

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Initial trial placement before its to late.

All good. Box is still within transport width. Isobus harness still reaches tractor. So no turning back now...
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After removing the box, I then set about removing all the brake mechanisms. This was necessary to allow bracing for the frame extention.

The reason for the change is to be able to split the box and have both metering units delivering product to all openers. Now if i am sowing lucerne in a 20ac paddock i will be able to tip the 160kg into one hopper and not have to worry about one half the machine running out before the other side does:banghead:. Now i will be able to also sow cereal and granular fert at the same time:cool:
 
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I know it may not seem the prettiest way of doing it. And its certainly not how I had planned it originally..... My initial plan was to leave box in place, fix new heads at front of box . This concerned me with reducing the turning circle, and being able to access the bar for locking the wings on the 6m drill. Also the plumbing of the primary lines wasn't giving me any joy[emoji34] So , I put the project on the back burner....Also I had a major failure of the electronics in just under the first 12 months. So I wanted to make sure everything was working seamlessly before I contemplated a massive change...Heads up for anybody else running an isobus unit that has a major controller failure. The big box is around 4000 pound to replace. And the smaller unit is around 1500. The service tech traced it back to the motor controller box ( the 1500 pound one). They had 3 of them in Melbourne (a 7hr return trip). So on a Sunday of a long weekend they got in touch with the spare parts manager who came in and opened up for me and gave me the gold plated box. 9pm that night the tech had it fitted up, yet still it wouldn't work[emoji34] long story short. After many months of a bodge fix and emails to JD USA and Kvernaland. They finally worked out that Kvernaland had stopped installing the software on the box's they supplied JD and you needed to buy a special tool to install said software[emoji34] the upside is now I have some of the most knowledgeable service techs in Australia at my local dealership...Also didn't help this was the only isobus 750a in Australia......
 

KJM

Member
Location
The Merse
I know it may not seem the prettiest way of doing it. And its certainly not how I had planned it originally..... My initial plan was to leave box in place, fix new heads at front of box . This concerned me with reducing the turning circle, and being able to access the bar for locking the wings on the 6m drill. Also the plumbing of the primary lines wasn't giving me any joy[emoji34] So , I put the project on the back burner....Also I had a major failure of the electronics in just under the first 12 months. So I wanted to make sure everything was working seamlessly before I contemplated a massive change...Heads up for anybody else running an isobus unit that has a major controller failure. The big box is around 4000 pound to replace. And the smaller unit is around 1500. The service tech traced it back to the motor controller box ( the 1500 pound one). They had 3 of them in Melbourne (a 7hr return trip). So on a Sunday of a long weekend they got in touch with the spare parts manager who came in and opened up for me and gave me the gold plated box. 9pm that night the tech had it fitted up, yet still it wouldn't work[emoji34] long story short. After many months of a bodge fix and emails to JD USA and Kvernaland. They finally worked out that Kvernaland had stopped installing the software on the box's they supplied JD and you needed to buy a special tool to install said software[emoji34] the upside is now I have some of the most knowledgeable service techs in Australia at my local dealership...Also didn't help this was the only isobus 750a in Australia......

Are you sure it's the cows driving you to tears?
 

Clive

Staff Member
Arable Farmer
Location
Lichfield
i would be concerned that the rear hoper legs had enough support like that, d you plan more framework or is that job done ?
 
I don't do a lot of fert. Most of ours is broadcast by truck and I just drill clover and rye. This year though I will be sowing some grazing barley and peas with 125kg/h of dap.


It really was a testing time for all of us with the electrics. They ended up fitting a simplicity controller to get the drives to work . But they couldn't get it to work through my x30 , so they had to put a SG2 screen in and run a JD receiver of the back of the drill for GPS speed. Also I had to get used to a foot pedal for starting and stopping the drive....

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Clive, there is plenty of bracing for the bin. That's why I had to remove all the brake mechanisms. It's made from 9mm thick 150x100, the same as what the main frame is made from. Also it let me fit up some mudguards to stop the cow crap from being flung all over the metering units[emoji12]
 
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Richard III

Member
NFFN Member
Location
CW5 Cheshire
Still think a 3m 750a box drill that can do fert and grain as good as vaderstad box would be a great drill for a lot of farms in the UK. Would easy manage 1500 acres a year winter and spring for about 130hp

For £25k as well!

Surely you need air to blow the seed around and electronics to do the metering, or you're just not fashionable these days? :unsure:
 

Northdowns Martin

Member
Arable Farmer
Location
Snodland kent
Still think a 3m 750a box drill that can do fert and grain as good as vaderstad box would be a great drill for a lot of farms in the UK. Would easy manage 1500 acres a year winter and spring for about 130hp
image.jpg Worthwhile if you can negotiate built discount to cover transport. Basic machine no markers and may need different hitch, could add small seed hopper at extra. $42k roughly £29k
 
Having grown rather sick of the bar that manually locks the wings together on the 6m machines, I set about coming up with an alternative
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First attempt was to cut the ends out of the original bar to form hooks. This failed dismally as they just stretched. So the alternative was a pair of 20t lifting hooks that I cut the ends off and welded on
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The mechanism for lifting the hooks uses one of the small rams that was used for the brakes. They are spring loaded and only require a single hose
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Next job on the list was fitting up the new towers and heads. These are seedvu heads that are a bleed off for air. Similar to how a seed brake works. They have an adjustable butterfly inside them.
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I'm not really sure if I will need or use them...but I needed new heads anyway, so this kills 2 birds so to speak.
 
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