Live vs. Non-Live PTO Question.......

[robertwhite]

When a clutch on a non-live PTO tractor is pushed in the PTO stops spinning and the implement ceases to turn/run, yes?

If that is the case, does that still happen if the PTO is still in gear?

The tractor specifically is a M-F 150

 

[Sandlot]

On my tractor while using my post hole digger, I push in the clutch, shift the pto into gear. I leave the tractor in neutral, slowly release the clutch and the digger starts to spin. Push in to the clutch the post hole digger stops.

 

[magicheater]

When a clutch on a non-live PTO tractor is pushed in the PTO stops spinning and the implement ceases to turn/run, yes?

If that is the case, does that still happen if the PTO is still in gear?

The tractor specifically is a M-F 150

yes, power is removed, the spinning stopped is not immediate in all cases.

 

[easygo]

On live PTO when the clutch is pressed it disengages the connection with the engine and no more power is going to the implement. In the case of relatively high RPM attachments like rotary cutters, chippers ect. the blades keep spinning for a while given their momentum but will eventually stop. On the independent PTO there is another kind of arrangement that disengages the drive from the PTO independent from the position of the clutch.

 

[Sportsman762]

On a non live pto "transmission pto" the pto will stop when you disengage the clutch. You have to disengage the clutch to turn the pto on and off.

On a live pto you can push the clutch in partially to disengage the transmission but the pto keeps running. When you push the clutch in all the way then the pto stops. You have to have the clutch in all the way to turn the pto on or off. This lets you reverse with a mower running and other implements.

On a independent pto you have a button, lever or some other control and you can turn the pto on off at will with the clutch in or out.

If you are running an implement with lots of centrifugal force such as a rotary mower than the pto might keep spinning until the implement stops.

 

[RoyJackson]

On a live PTO you can push the clutch in partially to disengage the transmission but the PTO keeps running. When you push the clutch in all the way then the PTO stops. You have to have the clutch in all the way to turn the PTO on or off. This lets you reverse with a mower running and other implements.

Which is referring to those tractors with a two-stage clutch, of course.

 

[Barry Bowen]

There are basically 3 types of PTO:

Independent has its own cluth completely seperate from the motion of the the tractor. You can turn it on and off with out doing anything with the foot clutch or motion of the tractor.

Live PTO has a two stage clutch. Depress the clutch pedal completely and the trans can be put in gear and the PTO lever moved to engage PTO. The first little bit that the clutch come up will get the pto spinning with out moving the tractor. Then the transmission will start turning as the second stage of the clutch is engaged. This type PTO allows you to get the implement spinning before the tractor starts moving. To disengage, the clutch needs completely pushed in, for power to stop going to the implement. The motion of the tractor can be stopped without stopping the PTO.

The original or transmission PTO on tractors like old H's or 8N Fords was completely tied to the movement of the tractor. These tractors have a single stage clutch, and the PTO is completely tied to the motion of the transmission. Engage PTO and put tractor in gear and they both start moving and spinning at the same time. Not the best thing for say running a mower since you cannot get it started before you start moving. This PTO can be used with the transmission in neutral if you need stationary power, but you have to work the foot clutch to turn it on and off.

 

[whistlepig]

On a non live PTO when the tractor clutch is pushed in the the tractor will still keep moving forward until the implement ( like a rotary cutter) quits spinning. The implement will push the tractor right over a cliff. The only way to prevent this is an over running clutch attached to the PTO shaft. A non live PTO isn't much fun to mow with.

 

[robertwhite]

Mowing is the exact intention of this tractor so I will not even look at non-live PTO (unless it is independent).

Thanks guys.

 

[beenthere]

Mowing is the exact intention of this tractor so I will not even look at non-live PTO (unless it is independent).

Thanks guys.

Prolly a good decision.
But of all the attempts to answer your original question, whistlepig nailed it for you.

The rest, however, give additional information that is usable.

But PTO powered equipment was successfully operated for many years without live power and it isn't the worse thing that can happen. When stopping, can always shift into neutral and let the rotary cutter spin down on its own momentum. If wanting to shut the rotary cutter down quickly (as in an emergency), then push in the clutch and put on the brakes to stop the PTO and tranny. The over-running clutch on the PTO is a good addition, as mentioned.

 

[Soundguy]

Mowing is the exact intention of this tractor so I will not even look at non-live PTO (unless it is independent).

Thanks guys.

independent pto is live by definition.

non live pto works fine for mowing as long as you use and ORC..

to add 'more' pto options to the basic '3' listed above, there is also ground speed pto..

soundguy

 

[ModMech]

...and even a 4th if you will.

With my HST, you disengage BOTH the transmission and PTO at the same time with a single stage clutch.

You can't stop the PTO (as with a trans PTO), you can't move the tractor and you can't run the PTO w/o the trans clutch being engaged. This can make for difficult shifting between HST ranges during PTO use.

 

[beenthere]

...and even a 4th if you will.

With my HST, you disengage BOTH the transmission and PTO at the same time with a single stage clutch.

You can't stop the PTO (as with a trans PTO), you can't move the tractor and you can't run the PTO w/o the trans clutch being engaged. This can make for difficult shifting between HST ranges during PTO use.

What brand tractor is that?

Different from my HST Deere. There is no clutch to the tranny. PTO is on its own clutch for engaged, free-running (neutral), and braked-stop.

 

[Iplayfarmer]

On a non live PTO when the tractor clutch is pushed in the the tractor will still keep moving forward until the implement ( like a rotary cutter) quits spinning.

BTDT!!

I've had personal experience with a number of options. I bought a little grey market tractor with a non-live PTO. I mowed with it, but I had to plan way ahead for any kind of stops or turns. The tractor would travel 4 or 5 feet after depressing the clutch from the power of the spinning brush hog alone. I got pretty good at popping the tranny into neutral. I also learned to run the mower up to speed in neutral, and then pop the tractor into gear to get moving. This avoided the feathered look at the beginning of a pass.

Next I bought an overrunning clutch for this same tractor. It was like night and day. I could mow tight little places that I had never even dreamed of mowing before. I felt safer, and my mowing looked better. If you get an ORC, a non-live PTO is not bad. I never really found the issue of no-power with the clutch depressed to be a problem. I can't think of a time when I personally would have the clutch in for long enough periods of time that I would need power.

Next I bought a HST tractor. The PTO is still, technically, non-live since depressing the clutch cuts power to the PTO. The difference here is that I only ever use the clutch when engaging or disengaging the PTO. This is by far my favorite configuration so far for mowing. I love the infinite and instant variability in speed with the HST.

 

[dboacres]

I have a 6 foot mower and used it on both live and non-live. A two clutch system is a little easier since you can start the mower blade spinning before moving the tractor. With the single clutch, I leave tractor in neutral, start the mower blade spinnig, put clutch back in, shift tractor and go. The momentem and weight of the blades will keep the mower turning a long time. After the mower is spinning, I really don't notice any difference in the operation.

 

[neucam]

I believe your MF-150 already has live power or has a 2 stage clutch. Using an external overiding clutch still is advised.

 

[Scotty370]

There are guys here that are more knowledgeable about the terminolgy, but I borrowed an older Kubota w/5' rotary mower and the tractor would not stop when the clutch was depressed. You'll be back, looking for the definition of "Pucker-Factor"! Not fun! That's a big 'flywheel' back there..........~Scotty

 

[aczlan]

What brand tractor is that?

Our Kubota B7510 is that way.

Aaron Z

 

[ModMech]

What brand tractor is that?

Different from my HST Deere. There is no clutch to the tranny. PTO is on its own clutch for engaged, free-running (neutral), and braked-stop.

Kubota B2410

 

[herringchoker]

Our Kubota B7510 is that way.

Aaron Z

So is my B7800, BUT I can shift speed ranges without using the clutch by making sure the GO pedal is centered in neutral. No gear grinding at all...slick and easy.