750A disc issue

Big-Al · Sep 12, 2016

Simon Chiles said:
You're not the only one. JD changed the design of the seed tube because they had issues with the old type however the new design ( with the locating tab ) has proved to be less successful. I think they have changed the process of manufacture rather than design so some new ones should sort the issue. Time will tell. I also have no doubt that JD will sort it out for you.

Hello Simon hope you are well, i'm sure jd will sort all the small problems out, and to be fair they are small, i wouldn't want any other drill than this on the farm as its the best most forgiving drill out there by the results we have had so far, and am so impressed, but will still want to come on one of your 750a courses again as i forgot a lot of the good stuff.

Regards Big Al

Louis Mc · Sep 12, 2016

Simon Chiles said:
You're not the only one. JD changed the design of the seed tube because they had issues with the old type however the new design ( with the locating tab ) has proved to be less successful. I think they have changed the process of manufacture rather than design so some new ones should sort the issue. Time will tell. I also have no doubt that JD will sort it out for you.

We have this issue too.

We also had to have the valve for adjusting the coulter pressure replaced as it was leaking but there was no fuss over it

Simon Chiles · Sep 12, 2016

Big-Al said:
Hello Simon hope you are well, i'm sure jd will sort all the small problems out, and to be fair they are small, i wouldn't want any other drill than this on the farm as its the best most forgiving drill out there by the results we have had so far, and am so impressed, but will still want to come on one of your 750a courses again as i forgot a lot of the good stuff.

Regards Big Al

You've just missed the last one, although it was at 24 hrs notice at @Feldspar 's. I'll give you a call soon and discuss it.

Simon Chiles · Sep 12, 2016

Louis Mc said:
We also had to have the valve for adjusting the coulter pressure replaced as it was leaking but there was no fuss over it

You're not the only one lately with this issue. Weird because up to a week ago I'd never had a problem with them or heard of one with it either and then two in one week, both new drills.

Feldspar · Sep 12, 2016

What's this bracket that keeps breaking? Wasn't aware that was an issue. Are there any preventative measures that can be taken? Any spare parts worth keeping in stock?

Simon Chiles · Sep 12, 2016

Feldspar said:
What's this bracket that keeps breaking? Wasn't aware that was an issue. Are there any preventative measures that can be taken? Any spare parts worth keeping in stock?

It's the new design steel seed tube that fits into the seed boot. The welded on tab with the locating bolt.

Big-Al · Sep 13, 2016

This is one of them
regards

cows sh#t me to tears · Sep 13, 2016

Having not seen them before, what exactly is the point of the broken tab and where does it go??

Big-Al · Sep 13, 2016

There is a grub screw that holds on to the pipe through the tab any loose ones need to be thread locked in to the seed boot, as i have actually lost the whole seed tube never to be seen again, well until next year in the combine stone trap.
regards

regards

cows sh#t me to tears · Sep 13, 2016

Not sure why they thought they needed to add that :scratchhead:

I have never had one fall out.. They do become worn in both the end of the locating bolt and the hole in the tube which allows them to flop around and rub on the disc. A new tube and bolt fixes that up...They should make them with a quarter turn locking slot so they're tight and then fixed with the bolt..

MRA · Sep 26, 2016

Big-Al said:
Good luck with that, my issues keep mounting up and i still have no definite answers from john deere the dealers are ok but takes months to sort stuff, latest thing is seed pipes the ones in your pic with globby paint on the small brackets keep breaking on the bottom were the bolt goes in, well at least twenty of them now i've been welding them up to keep going not good on a drill 6 months old so good luck.

Regards Big Al

Same here, broken all 36! Waiting on JD to tell dealer what to do, old drill didn't have the tabs so seed tubes worked loose and rubbed on disc unless cable tied.. tab is a good idea but not strong enough when seed pipes vibrating a lot

Feldspar · Sep 26, 2016

I am surprised that these issues are occurring. I chose this drill because it was meant to be a tried and tested design! When these tabs break are you able to carry on drilling, or do you have to go back to the workshop to do some welding? Don't fancy traipsing back and forth from farm to field every time one breaks. Have just found out today that two of the four wheels are off at an angle due to some frame geometry problems...

Simon Chiles · Sep 27, 2016

JD tell me that seed tube tab issue has been resolved by changing the manufacturing process and that the issue applied to only a relatively small no of machines. Time will tell whether it has but undoubtedly anyone with issues will be sorted out.

Simon Chiles · Sep 27, 2016

Feldspar said:
I am surprised that these issues are occurring. I chose this drill because it was meant to be a tried and tested design! When these tabs break are you able to carry on drilling, or do you have to go back to the workshop to do some welding? Don't fancy traipsing back and forth from farm to field every time one breaks. Have just found out today that two of the four wheels are off at an angle due to some frame geometry problems...

Although the drill is basically the same as the original ones there have been lots of gradual improvements over the years. Very occasionally the improvements need modifying but at least JD are constantly trying to improve performance.

Feldspar · Sep 27, 2016

Slightly OT, but have just started to fit the single swept tines and have now realised after speaking to Simon why @Big-Al was extending his following harrow frame. With the harrows we have the frame would have to lower such that it would hit the Guttler wheels. Before we start extending the frame, are there any longer single swept harrows that anyone has found. The double harrows shown in the picture won't line up with the slots, although they are a much better length.

Big-Al · Sep 27, 2016

These were what i saw at tillage the front facing tines on a KRM. may be spaldings have a selection to try and marry up.
To be fair the frame extension has worked well so far, but would of been better to of tried longer tines first, i have now had my hopper extension done as well last week, can get about 2250 kg of wheat in it now

Regards Big Al

Big-Al · Sep 27, 2016

@Feldspar also need a good use for the original closing wheels and jd following tines, havent come up with one as yet.

Regards Big Al

Clive · Sep 27, 2016

Big-Al said:
@Feldspar also need a good use for the original closing wheels and jd following tines, havent come up with one as yet.

Regards Big Al

I had one milled to make a 'gutler' looks good and is nice and heavy - not sure its economic though as it takes a fair bit of machine time

Feldspar · Sep 27, 2016

Big-Al said:
@Feldspar also need a good use for the original closing wheels and jd following tines, havent come up with one as yet.

Regards Big Al

We luckily ordered the drill with Guttlers on from the start so don't have the original closing wheels. Thanks for the following tine comments. Will have a ring around and see what I can find.

Tractor Boy · Sep 27, 2016

Feldspar said:
Slightly OT, but have just started to fit the single swept tines and have now realised after speaking to Simon why @Big-Al was extending his following harrow frame. With the harrows we have the frame would have to lower such that it would hit the Guttler wheels. Before we start extending the frame, are there any longer single swept harrows that anyone has found. The double harrows shown in the picture won't line up with the slots, although they are a much better length.

View attachment 404622

I've used the green double tines that Claydon use. The double tines are about 16cm apart so 1 tine can do 2 slots. They aren't exactly 16.6cm but close enough !

750A disc issue

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