Problems experienced with the "Longest Combine Unloading Augers"?

[Pilatus]

The length of the grain tank unloading augers on combines ,to accomodate CTF systems staggers me. The leverage of those long unloading augers must be huge on the construction of the combine when fully laden with grain when unloading,as well as the stabiltiy of the combine when unloading on sloping /steep banks etc.
It would be very interesting to hear if any of you have had any problems with the above,also your tips on how to avoid problems with the above.

 

[Shutesy]

The length of the grain tank unloading augers on combines ,to accomodate CTF systems staggers me. The leverage of those long unloading augers must be huge on the construction of the combine when fully laden with grain when unloading,as well as the stabiltiy of the combine when unloading on sloping /steep banks etc.
It would be very interesting to hear if any of you have had any problems with the above,also your tips on how to avoid problems with the above.

The likes of Claas and NH will test these things to the limit before they go on sale so I very much doubt they will start to bend or anything like that, yes lots of strain especially at the end of the auger when fully out and unloading but it will all be engineered so nothing can break in theory. I think if there was a design flaw it would have been heard about on here as these 9.90/10.90 and 770/780 etc machines have been out for a few years now with header widths of 35ft plus.

 

[Pilatus]

The likes of Claas and NH will test these things to the limit before they go on sale so I very much doubt they will start to bend or anything like that, yes lots of strain especially at the end of the auger when fully out and unloading but it will all be engineered so nothing can break in theory. I think if there was a design flaw it would have been heard about on here as these 9.90/10.90 and 770/780 etc machines have been out for a few years now with header widths of 35ft plus.

I sincerely hope you are correct as lot of downtime and expense after warranty period would not be good.

 

[Rob Holmes]

Ive noticed that its always the LH front tyre which always fails first, i reckoned its extra load because of unloading

 

[Fraserb]

In the january issue of profi they comment that when trying to fold the auger in full it droops and struggles to get onto it's rest.

 

[David.]

Surely they will not put up with being folded away with the tube full; like when the trailer is full and the tank isn't?

 

[Against_the_grain]

I had heard the claas 12m ctf spout drooped by nearly 1m when full and out.

 

[Fraserb]

I had heard the claas 12m ctf spout drooped by nearly 1m when full and out.

Bloody hell, pleased we've got the short auger on our NH

 

[glasshouse]

fudging ridiculous things.
they will be scrap in ten yrs

 

[faircomment]

Ive noticed that its always the LH front tyre which always fails first, i reckoned its extra load because of unloading

The 690i hillmaster used to drive actually levels itself as the auger filled and the combine leaned.

 

[Lazy Sod]

The other problem is that the longer they get, the more they point skywards and run the risk of fouling power lines. I think that the old Massey system, where the auger was horizontal and mounted at the top of the tank was better

 

[Baker9]

The wings on an aeroplane flex when it is in flight, if they broke it would be a lot more serious for the passengers. Bridges are designed to flex when under load, even an engine can flex when it is under pressure, that is why timing chains are now being to the rear of the engine. The biggest danger is what the previous poster mentioned, the danger of striking power lines.
They will be designed to flex with in limits.

 

[David.]

Probably nowhere near strong enough for the forces involved if done that old MFway?

 

[geoff570]

Ive noticed that its always the LH front tyre which always fails first, i reckoned its extra load because of unloading

Or maybe something to do with running in the ditch when on the road just an idea

 

[Feldspar]

I think the early Claas 12m CTF augers did need beefing up.

 

[glasshouse]

The other problem is that the longer they get, the more they point skywards and run the risk of fouling power lines. I think that the old Massey system, where the auger was horizontal and mounted at the top of the tank was better

Most combines copied the massey.
Worked well in dry corn, not wet

 

[Frankzy]

1m of flex over a 12m sprout is not much for the right material.
There are some aircraft whose wings will flex almost 10 meters with no problems even over an 80'000 hour lifespan..

 

[Lazy Sod]

No reason why a horizontal auger couldn't have a strut underneath, like some high wing aircraft.

 

[Rust]

No reason why a horizontal auger couldn't have a strut underneath, like some high wing aircraft.

But it's not aesthetically pleasing.

 

[ollie989898]

Having materials that will flex and withstand it is often far preferable to something very rigid that can't take dynamic loads without stressing and suffering damage.