Eco pto

[Greythundercloudys]

Change my tractor and this case had eco pto, 1500rpm runs it, does it make a big difference on fuel as no experience of it.

 

[daveydiesel1]

In light operations it should make a difference but ònly if your tractor isnt labourin more because of the lower revs

 

[Greythundercloudys]

What about baling

 

[robo]

if you need power best if you have got higher engine revs especially on hills . ours is the economy PTO didnnt realise tilll some time after it arrived bought it as a demo . wouldnt get caught again . but it was my fault

 

[Sharpy]

What about baling

What size of tractor, what baler baling what?

 

[Deutzdx3]

What about baling

It depends on baler in use and what tractor. If it’s an 80hp and a round baler with chopper blades eco just won’t work. If it’s 340hp then yes it will. Look at what hp your baler requires. And look at the hp the tractor produces at eco rpm. Should be to tricky. I run my hedge cutter in eco on 95hp as the pump only requires 30 ish hp.

 

[TripleSix]

Is it selectable speeds?
NH's at work have 4 speed PTOs.

Very handy, Ive even spread muck in 540 eco.

 

[Wellytrack]

Most tractors eco PTO is only designed for light loads. You may have the power but the gear isn’t made for high torque loads.

 

[Kidds]

Spraying is a good use of eco pto.
Don't need much power to work the pump and don't need the engine revving it's guts out to get 540

 

[Frankzy]

Roughly 160 hp is the point where something like a Fusion baler will start to be more fuel efficient when you run 540 eco. Obviously depends a little bit on how steep it is..

 

[steveR]

Got "Eco PTO" on my, new to me, 105hp Kubota.

Grand for light work with smaller kit less noise, less fuel, Did all my round baling like this last Summer. BUT, with the effin' EGR really not liking constant work at around 1500RPM... it means regular regeneration which is a PITA.

Which reminds me it really is time to have it sorted...

 

[mo!]

All PTO work on my T7.210 is done in eco, 540e and 1000e. Round baling, combi drilling, whatever. It doesn't even have a 2000 rev 540 option and I never use the 1000, it makes no difference to power just makes more noise.

 

[Fendt516profi]

?Both yours only miss one drop in the first 5?

Got "Eco PTO" on my, new to me, 105hp Kubota.

Grand for light work with smaller kit less noise, less fuel, Did all my round baling like this last Summer. BUT, with the effin' EGR really not liking constant work at around 1500RPM... it means regular regeneration which is a PITA.

Which reminds me it really is time to have it sorted...

@Alternativedairy

 

[Mc115reed]

We run eco ptos on our slurry pumping tractors... boss reckons saves us £20k a year on fuel over 2 pumping kits

 

[Greythundercloudys]

So spreading fertiliser or topping shot grass or spraying those jobs,

 

[Cowabunga]

Modern tractors with 'constant power' engines and a high torque rise output very near the same power at 1500erpm as they do at rated speed. So the performance under a near constant load will be very similar whichever ratio is used. However, what you lose is 'torque back-up' at the eco setting. If an overload occurs, whether a sudden steep bank or a heavier crop, then while the rated speed allows a steeply rising torque and therefore increasing resistance to lower revs all the lugging way down to the engine's maximum torque speed, which will usually between 1400 and 1500, when in Eco mode the engine will already be at or near 1400 and lugging down from there is on a steeply declining torque curve. This means that there is very little or no reserve in the engine to overcome an increase in load, which means a very rapid loss of revs when overloaded.

THAT is the reason Eco mode is more suitable for part load or lighter load/power requirement work. Not because of PTO driveline issues unless the tractor is of a shite design.

If the jobs are suitable then using Eco mode may well save a considerable percentage of fuel used. Many tractors have load and fuel monitors these days so it is easy to work out the saving. Engines are far more efficient at around 1500 than at over 2000 revs. Some remarkably so.

 

[Frankzy]

Not because of PTO driveline issues unless the tractor is of a shite design.

*Cough* John Deere's burning the pto clutch while baling *cough*

Modern tractors with 'constant power' engines and a high torque rise output very near the same power at 1500erpm as they do at rated speed.

To be more precise, all engines have more power at around 15-1600 than they do at rated speed, if it's rated at 200hp it will develop ~220hp once the revs start to come down.

 

[J 1177]

Both our tractors drill in 1000 eco and bale in 540 eco.
Do it no bother.

 

[Cowabunga]

*Cough* John Deere's burning the pto clutch while baling *cough*




To be more precise, all engines have more power at around 15-1600 than they do at rated speed, if it's rated at 200hp it will develop ~220hp once the revs start to come down.

That’s almost never correct as it would require something like a 50% torque rise. I don’t know of any tractor engine that gets near this. Most rising power engines peak at about 200 to 300 revs lower than rated speed and slowly lose power as revs drop from there to, typically, match power at rated speed as they lug down to 1700 or 1600.

At a guess you may be confusing power with torque. Power is the ability to do work while torque is the resistance against load or to reducing revs under increasing load.

There may be other complications such as engine power boost, which should be measured in independently.

 

[ridger]

There was a massey in these parts which didn't like driving a doda pump in eco, it was in bits twice at the dealers due to it. Must find out more. Think it was a 6480