Weaving gd drill

[Bumble Bee]

There are spacers behind the discs, from memory. An owner of one would be better placed to comment. @Badshot ?

There are shims. When you fit the discs you fit or remove shims until the discs are just touching.
The problem comes when the discs cut through a raised ridge of soil. The soil enters between the discs at the top of the opening and as the discs rotate and get closer together the soil gets nipped which stalls the discs.

 

[Brisel]

Ah, ok. I see where you're coming from.

 

[Badshot]

There are shims. When you fit the discs you fit or remove shims until the discs are just touching.
The problem comes when the discs cut through a raised ridge of soil. The soil enters between the discs at the top of the opening and as the discs rotate and get closer together the soil gets nipped which stalls the discs.

That also happens with stones, I wouldn't have one of these drills if I had a lot of stones.
Not had trouble with soil personally though, but I don't cultivate.

 

[clbarclay]

I guess that is why some other double disc coulters have a part that goes round in front of the discs where they move back together.

 

[Gadget]

That also happens with stones, I wouldn't have one of these drills if I had a lot of stones.
Not had trouble with soil personally though, but I don't cultivate.

Is there a problem with stones if the land is not cultivated?

 

[Badshot]

Is there a problem with stones if the land is not cultivated?

There can be, yes.
I do get the odd one stalling discs.
If it's very stony then it just runs over the top of them limiting depth, and taking the sharp edge off.

I'm lucky to have very few stones on the whole, but had I got a lot of shingle I'd not have a gd.

 

[jack6480]

no

 

[Brisel]

How did you get on with your GD with stones @willy ? I know you sold it.

 

[willy]

How did you get on with your GD with stones @willy ? I know you sold it.

Good drill but fell to bits on my stone. And I found back up poor compared to Claydon’s.

 

[willy]

I have actually bought another Claydon. Although it’s not the ultimate low disturbance Mecca, it is very versatile and with the not till knowledge I now have after going through the whole lot, I am pleased to be back here. Strip till is my happy compromise.

 

[SorenIlsoe]

I have lots of stones and now my discs has lost 3-4 cm in radius because of wear.
Only real problem was in a light cultivated area, where stones was up again because soil was uneven.
On permanent no-till land there is almost never problems with small stones dropping down between the discs and blocks.
But I wonder why Weaving never mounted a shield in top OF DISCS going down in front to protect them from soil and stones. Even my Lemken Solitair dobbelt disc drill I had in year 2000 had this!
The conclusion: Remember that Weaving GD drill is a NO-TILL DRILL!
THATS THE REASON WHY IT HAS ANGLED DISCS!!!
It always can close the slot! That's the problem all other disc drills are fighting (except Sly-Boss drill, also angled).

If you are not a no-tiller there are dusins of other drills on the market.

 

[yellow belly]

On brash soil 10% of my farm I drive slower

if I was 100% brash I would have a knife opener type tyne drill

on loose soil a shallower setting helps but now all notill so not an issue
if I cultivated it would be less than 50mm depth with good press rolling

 

[Ruston3w]

I believe Weaving are working on a "shield" to keep some small stones/soil out- though I,m not sure if that is to help with loose soil or more to stop the front row of discs feeding bits into the back row which is more of a problem for us.
I agree with those who say it is really a DD only, even with a roll a shallow pass with a short disc is enough to cause bulldozing on sand.

 

[yellow belly]

If the ground has been worked several months before drilling there should be no problem especially if the ground has had plenty of weather
cultivating immediately before drilling to dry it out will not improve wet land
just wait a bit longer this avoids the biggest problem of cultivating then drying out and delayed emergence
if You must cultivate then ensuring a firm fine seedbed is essential whatever the soil

 

[Olivera35]

Hi. We have just bought a gd 4800m and mounted it on a mf 8480 we are having a issue with the hyd fan it fluctuates a good 200-300 rpm when we slow the flow of oil below 50% on the tractor it runs fine above 50% but to fast. I have had flow set at 43% and lifted drill up and down a good few time which settle the fan down and ran a constant 4800 rpm but not been able to do this again. Any ideas? Thanks

 

[jack6480]

Can you priorities that spool on your tractor

 

[Olivera35]

I had a look but couldn't find the menu. I will speak to our dealer on Monday

 

[Brisel]

300 rpm drop from 4800 is only 6%. I wouldn’t worry too much but as above, modern hydraulics should have plenty of capacity and if you can, prioritise the spool that feeds the fan. Does anything else run off that spool? Markers? Lift/lower?

 

[Olivera35]

It's more that it's rev'ing up and down so will not have a constant air flow. Only the fan on that spool.like I say running the spool at above 50% it's fine it's just when I get below 50% it fluctuates. I can't find anything on drill that adjust oil flow.

 

[Olivera35]

Probably more like 600rpm as fluctuates 300 above and below 4800.