Power harrow pto speed and forward speed

[JCfarmer]

Most combi drills come with a hydraulic fan nowadays so no need to run the power harrow full pelt to run fan.
Running the power harrow at a slower speed of say 600 (if conditions allow) would require more power or would be easier to drive allowing a faster forward speed?

 

[glasshouse]

Most combi drills come with a hydraulic fan nowadays so no need to run the power harrow full pelt to run fan.
Running the power harrow at a slower speed of say 600 (if conditions allow) would require more power or would be easier to drive allowing a faster forward speed?

Depends if 600 rpm does the job

 

[Wellytrack]

Will depend on the ground surely. There are lads blasting up and down so quick on light land the power Harrow would do the job with the PTO off!

 

[JCfarmer]

Depends if 600 rpm does the job

Yes I get that, with good disc coulters and good pressure the seed bed isn't as critical. Would it take less power running the power harrow slower?

 

[JCfarmer]

Will depend on the ground surely. There are lads blasting up and down so quick on light land the power Harrow would do the job with the PTO off!

Definitely,so hense run them much slower

 

[ARW]

Do you not just run it flat out and adjust the depth?

 

[Serup]

If you want to run at a certain speed, then adjusting rotor speed makes sense. My ph has two speeds just for that. We always have it in high, and adjust forward speed instead. No need to spend all that sunshine, going nowhere

 

[KB6930]

Yes I get that, with good disc coulters and good pressure the seed bed isn't as critical. Would it take less power running the power harrow slower?

Yeah we do this a lot especially in very stoney stuff slower rotor speed lets the stones pass through. As long as you're deep enough the discs will put the seed away

On the power question I'm not sure as we just shut the tractor revs back when needed

 

[Drillman]

we run at just over 1000pto speed but have the dials set so it can drag the tractor down to around 950pto.

vario tractor

as for depth we find the clod board is our limiting factor as too deep kills out put

but on 4m combi we’re probably a little tight on HP to truly boss it in any conditions at higher speeds

 

[Serup]

we run at just over 1000pto speed but have the dials set so it can drag the tractor down to around 950pto.

vario tractor

as for depth we find the clod board is our limiting factor as too deep kills out put

but on 4m combi we’re probably a little tight on HP to truly boss it in any conditions at higher speeds

How much is that?
I have 220 on a 4m and i only run out of power on hills. On heavy ground the ph can’t work it out faster than we can pull it.

 

[Drillman]

How much is that?
I have 220 on a 4m and i only run out of power on hills. On heavy ground the ph can’t work it out faster than we can pull it.

165hp with 4m press on front as well

 

[Serup]

165hp with 4m press on front as well

I have a 4m press on front. I find it easier to pull and using less diesel/ha. I don’t need to put the harrow deep enough to eradicate wheelings with the press on front.

 

[Bobthebuilder]

165hp with 4m press on front as well

What 4m combi are you running on 165hp? Lifting it must be an issue

 

[quattro]

What 4m combi are you running on 165hp? Lifting it must be an issue

Know someone running a 4m kg wedge ring and disc coulters on a tm150

 

[Drillman]

What 4m combi are you running on 165hp? Lifting it must be an issue

Andrew guest combi

tractor plays with it lift wise even with double hopper extension full of wheat

 

[Drillman]

Know someone running a 4m kg wedge ring and disc coulters on a tm150

TMs are well known for having a massive lift capacity

far better than the majority of the competition of the time

 

[Lincsman]

If you have the power the pto is at full speed and forward speed is set to what it looks like behind, on some of my variable soils the speed can be double the slowest spots.

 

[Horn&corn]

Yes I get that, with good disc coulters and good pressure the seed bed isn't as critical. Would it take less power running the power harrow slower?

If you drive too fast or rotor is too slow you get the soil moved like the right. Could create uneven establishment. As long as seed in the right place with enough moisture to start to grow then it doesn’t matter.

 

[Bobthebuilder]

Know someone running a 4m kg wedge ring and disc coulters on a tm150

4m sulky, disc coulters with a ton of seed here makes a puma 200 pretty twitchy on the nose end, the new 4m folding front press last season balances it well now tho

 

[Ted M]

Had a new Kuhn combi for this season with hydraulic fan, replacing 13 year old 3003 and LC302 drill with pto/belt driven fan.
Was able to drop pto speed down to 540-600rpm in light ground no problem and probably saved a minimum of a litre per acre of diesel if not pushing two sometimes.
Also if the power harrow is turning less must surely help with tine wear.