Virtual Ploughing Tuition

Tonym

Member
Location
Shropshire
I extended my International 434 by using Nuffield 460 arms which are 5 inches longer. As I had a cat 2 cross shaft I also extended the width or the pins where the arms attach to the tractor by 5 inches (2.5" each side) to comply with cat 2 dimensions. This gives much more room for the disc and prevents it fouling the lift arm and removing the lynch pin connecting the lift rod. It also moves the pulling point from under the clutch housing to under the front axle pivot which how it was designed by Harry Ferguson and deemed to be the ideal point of pull.




"
 

Ley253

Member
Location
Bath
So 6 inches makes a lot of difference, doesn't sound much. Do you have to use a longer top link or alter the mounting bracket on the plough?
Makes a fair bit of an improvement, extra spread at the ends allows for a longer X shaft in the plough, that helps when you want top plough a single. As Tony says, also helps to move the coulter mount away from the linkage upright. Top link is a home made hyd one. On some tractors, longer arms can help prevent damage. Nuffields suffer from the original tool box being opened by lifting the plough a bit too far, and some fords are prone to the rear cab window being opened by the plough!
 

Mydexta

Member
Location
Dundee/angus
Are you saying Interationals would benefit from longer links, Dave? If so do you weld bits in or use longer
ones?
I bought a new set for
My b275 a few yrs ago, and they turned out to be replacement weld on ends, welded to a piece of flat bar With a hole drilled for the drop arm.

I’m very tempted to cut the ends off and put a longer piece of bar in between
 

wuddy

Member
Location
Scottish Borders
massive difference. Put 1200 lower links on my 780. People have been doing it for years.
it also changes the way the plough reacts which might mean winding a bit sooner. It will let the plough run straighter. You will get far better weight transfer but as some on here so rightly say you might need some front end weight.
I originally based my logic on ploughing thousands of acres with a Super Major. Got used to it and went well. After that most other tractors seemed hunched up with a plough on the back. Internationals are the worst of the lot.
Mf135 lift arms are a good cure for internationals
 

wuddy

Member
Location
Scottish Borders
Makes a fair bit of an improvement, extra spread at the ends allows for a longer X shaft in the plough, that helps when you want top plough a single. As Tony says, also helps to move the coulter mount away from the linkage upright. Top link is a home made hyd one. On some tractors, longer arms can help prevent damage. Nuffields suffer from the original tool box being opened by lifting the plough a bit too far, and some fords are prone to the rear cab window being opened by the plough!
I would think many of the lift locking nobs have succumbed to toplinks on Nuffields as well. Think out of 5 here only 2 have the original catches!
 

arcobob

Member
Location
Norfolk
A YL50 is just like a 44 but 10" wide instead of 8". I often use one on the back and front for opening and on the back for finishing (If I remember!)
 

MrNoo

Member
Arable Farmer
Location
Cirencester
Not 100% sure but I think 135 have 3 holes for drop arm attaching 35 only has one! Had them on my 434 somebody local was looking for a genuine pair for a 135, I was using the 35 again by then so sold them!
I bought some for my MF35 and they came with 3 holes so maybe they are the same. I have a set of link arms that I have slightly lengthened by accident when I welded on new ball ends I cut them slightly long by 4" but yet to try them. Have tried a wider crosshaft on the Fergie but didnt get on with it.
 

Ley253

Member
Location
Bath
W
I bought some for my MF35 and they came with 3 holes so maybe they are the same. I have a set of link arms that I have slightly lengthened by accident when I welded on new ball ends I cut them slightly long by 4" but yet to try them. Have tried a wider crosshaft on the Fergie but didnt get on with it.
ider shaft with standard arms may indeed not work, will alter the geometry somewhat. I cant help there, always used longer arms!
 

MrNoo

Member
Arable Farmer
Location
Cirencester
W

ider shaft with standard arms may indeed not work, will alter the geometry somewhat. I cant help there, always used longer arms!
No, I was just saying I tried it and couldnt get on with it, happy with the set up I currently have, so not a lot to do to my plough.
 

Howard150

Member
Location
Yorkshire
Are you saying Interationals would benefit from longer links, Dave? If so do you weld bits in or use longer
ones?

I am indeed. By the look of some of these replies on here that seems to be a fairly universal viewpoint. To me a plough on the back of a Super Major seemed to run really well With its long arm geometry. The plough never ever fouled the tractor. Changed my 780 accordingly. Was ready to do my 995 as well but sold it and the KV with super Hydreins after a lightbulb moment of how the cards were actually stacked.

So 6 inches makes a lot of difference, doesn't sound much. Do you have to use a longer top link or alter the mounting bracket on the plough?

you will need a longer top link. Just extend the tube. I made mine to fit the job. 6” is massive difference An extra 1” is a lot - possibly the best bit in certain circumstances!
 

Howard150

Member
Location
Yorkshire
I bought some for my MF35 and they came with 3 holes so maybe they are the same. I have a set of link arms that I have slightly lengthened by accident when I welded on new ball ends I cut them slightly long by 4" but yet to try them. Have tried a wider crosshaft on the Fergie but didnt get on with it.

the greater probability is that inasmuch as a wider cross shaft is not right for short arms, you might well find that a short cross shaft is not right with long arms. All to do with changing the geometry of the linkage.
 

Tonym

Member
Location
Shropshire
you will need a longer top link. Just extend the tube. I made mine to fit the job. 6” is massive difference An extra 1” is a lot - possibly the best bit in certain circumstances!
[/QUOTE]
To extend my top link I bought a longer one which had longer threads and swapped them to avoid cutting and welding in case I wanted to go revert back when I tried it.









"
[/QUOTE]
 

Cordiale

Member
Nice to see we are getting a lot of good advice and views about the many different aspects of the ploughing art.
Can anyone advise me on the best link arms to use on an Inter 574 please.
 

mike.l

Member
Location
london ontario
Hi Still following this thread i went around with a tape measure yesterday and discovered that the old nuffield Pm4 has longer lift arms than the universal 3 by 2 inches is it worth swapping for 2 " as i have got a wider cross shaft think the cross shaft is 37 " around 4" wider or will i upset the geometry of the plow and never get it to follow and plow right. Mike
 

arcobob

Member
Location
Norfolk
Hi Still following this thread i went around with a tape measure yesterday and discovered that the old nuffield Pm4 has longer lift arms than the universal 3 by 2 inches is it worth swapping for 2 " as i have got a wider cross shaft think the cross shaft is 37 " around 4" wider or will i upset the geometry of the plow and never get it to follow and plow right. Mike
Hardly surprising as a Nuffield 4 has 36" wheels and a 3 has 28" I think
 

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