Lemken solitair 9 over applying

[del_boy]

Have a 4m lemken solitair 9 with the old style LH agro 5000 control box, just can't seem to get the rate right when planting wheat, its over applying by a fair bit.
Can calibrate it several times and the load figure will always be similar.
The land wheel speed isnt far off the radar speed on the tractor and the total area for the field is really consistent at 5% over the gps area naybe 6% on a bad shaped field.
The handle on the right hand side of the hopper is in the tightest hole and the bracket it lockes into is in its tightest setting aswell on the slotted hole.
Anybody had similar or any ideas?

 

[Sandy]

Have a 4m lemken solitair 9 with the old style LH agro 5000 control box, just can't seem to get the rate right when planting wheat, its over applying by a fair bit.
Can calibrate it several times and the load figure will always be similar.
The land wheel speed isnt far off the radar speed on the tractor and the total area for the field is really consistent at 5% over the gps area naybe 6% on a bad shaped field.
The handle on the right hand side of the hopper is in the tightest hole and the bracket it lockes into is in its tightest setting aswell on the slotted hole.
Anybody had similar or any ideas?

Are you using all the metering wheels or have

 

[del_boy]

No not using all of them, what the sticker says on the hopper it whats engaged, think its all except the very wide one

 

[del_boy]

This is whats currently running

 

[Chae1]

Are you using all the metering wheels or have View attachment 1071345

How's Turkey?

Got any fert yet.

 

[Fraserb]

Have a 4m lemken solitair 9 with the old style LH agro 5000 control box, just can't seem to get the rate right when planting wheat, its over applying by a fair bit.
Can calibrate it several times and the load figure will always be similar.
The land wheel speed isnt far off the radar speed on the tractor and the total area for the field is really consistent at 5% over the gps area naybe 6% on a bad shaped field.
The handle on the right hand side of the hopper is in the tightest hole and the bracket it lockes into is in its tightest setting aswell on the slotted hole.
Anybody had similar or any ideas?

Our older one with the LH5000 was similar, It was pretty consistent though so I just added 10% to the calibrated weight to get the actual correct rate. I used to blame it on the vibrations from the power harrow causing seed to flow faster when working than calibrating, new one seemed identical metering setup and was always within 1-2% so not sure my initial thoughts were right.

 

[del_boy]

Thats my thought aswell but its not consistent. The area drilled is really consistent so ive ruled out any electrical fault on the motor..
Have a good accurate set of scales aswell and i tip the calibrated seed into a better bucket to get a more accurate weight as the red calibration tray isnt the best to weigh if it doesn't hang dead level.

 

[Fraserb]

Thats my thought aswell but its not consistent. The area drilled is really consistent so ive ruled out any electrical fault on the motor..
Have a good accurate set of scales aswell and i tip the calibrated seed into a better bucket to get a more accurate weight as the red calibration tray isnt the best to weigh if it doesn't hang dead level.

It could be the seed meter drive motor playing up, the drilled area will be done from the land wheel, if the motor is speeding up and slowing down will effect seed rate, our one with the newer box had the main motor wire rub through and that caused the motor to slow down, could be something similar but causing yours to speed up.

 

[Shutesy]

How much are you over applying? You say its not consistant, are you drilling just 1 variety from 1 batch of seed? Or multiple varieties? We dont have a Lemken but some seed like oats or barley through our older KV tine drill can run maybe 20% faster than the calibrated weight once its moving and vibrating the hopper compared to a static calibration. Can do it on wheat as well, wonder whether some seed dressings can alter flow rates of the seed a bit as well?

 

[Serup]

I have one, just finished the 4th season with it. It’s an 07 rebuild to isobus.
we consistently add 10% to the measured amount when we calibrate it. We had some fiddle with the chain and sprockets than pull the meter units on your picture and it has been consistent 10% over since. We do recalibrate every time we change variety or batch. I find it more accurate if you have as many meter units engaged as possible.

It’s more difficult to hit the target in grass mix, and we have added strips to the agitator axle to get consistent delivery.

 

[Sandy]

How's Turkey?

Got any fert yet.

Hot not seen much Fert yet but the pool bar is busy

 

[del_boy]

How much are you over applying? You say its not consistant, are you drilling just 1 variety from 1 batch of seed? Or multiple varieties? We dont have a Lemken but some seed like oats or barley through our older KV tine drill can run maybe 20% faster than the calibrated weight once its moving and vibrating the hopper compared to a static calibration. Can do it on wheat as well, wonder whether some seed dressings can alter flow rates of the seed a bit as well?

We do alot of contract drilling so i calibrate on every farm for each seed type. Currently set on 170kg/ha and the 1st 2 bags went on at close to 220kg/ha so not even close. Going to finish this field and try and investigate. Seems its definitely getting worse each day

 

[Shutesy]

We do alot of contract drilling so i calibrate on every farm for each seed type. Currently set on 170kg/ha and the 1st 2 bags went on at close to 220kg/ha so not even close. Going to finish this field and try and investigate. Seems its definitely getting worse each day

Christ that's miles out! Somethings letting to much seed through or a rollers turning to fast, cant be much help beyond that.

 

[del_boy]

Yeah it is. It doesn't seem consistent but maybe seed dressing does play a big difference.
Is there any way to check the motor is turning at the right speed? The little arrows on the control box by the seed rate constantly change from up to down. The land wheel speed isn't far off the tractor radar speed

 

[Salopian_Will]

Sounds like additional 'locked off' cell wheels could actually be turning. Calibrate it but then get someone to spin the land wheel while you watch what is going on. Might need plenty of trayfulls though.

 

[melted welly]

No idea how lemken is set up, is meter driven by electric motor?

if it is and the motor is getting a variable resistance ie a bearing on the way out or a stiff hardi spicer, motor might be surging in work. I had very similar symptoms on our Kuhn this year, combination of disintegrating bearings in meter plus a stiff drive shaft. Over applied by about 20%, you could heard the seed surging in the pipes.

Empty it right out and run it empty and listen.

 

[Sandy]

@Zebbedee is the lemken expert

 

[icanshootwell]

We do alot of contract drilling so i calibrate on every farm for each seed type. Currently set on 170kg/ha and the 1st 2 bags went on at close to 220kg/ha so not even close. Going to finish this field and try and investigate. Seems its definitely getting worse each day

That's a lot over, with my accord metering system, I rarely need to calibrate it, I know where the settings should be to the rate I want, I stick one bag in and check the ha,s drilled , adjust if I need to.

 

[nelson]

i ve had this on 2 amazone drills both 5% out i just alter the rolling radas number in the control box by 5%

 

[del_boy]

That's a lot over, with my accord metering system, I rarely need to calibrate it, I know where the settings should be to the rate I want, I stick one bag in and check the ha,s drilled , adjust if I need to.

We've planted a few hundred acres of grass seed this autumn and the rate was spot on. It was right when i started drilling wheat but its got progressively worse and the last 2 days really bad.
How tight do you run the flap to the metering wheels? These are in the tightest hole but looks like its worn the flap due to it being too tight possibly.
Its one thing over applying the rate if its consistent which most drills are but this isn't consistent at all at the moment