L3800 PTO

[F2036]

My L3800 HST arrived yesterday. On the Kubota website it says that it has a live pto, but in the manual it says you must use the clutch when putting the pto in gear or takeing it out of gear.
To me a live pto does not need a clutch to be put into gear. What am I missing?

 

[Earl Ohl]

My L3800 HST arrived yesterday. On the Kubota website it says that it has a live pto, but in the manual it says you must use the clutch when putting the pto in gear or takeing it out of gear.
To me a live pto does not need a clutch to be put into gear. What am I missing?

I'm no tractor expert, but every PTO I have seen so far has some sort of clutch for engaging & disengaging.

 

[Johnbro]

Don't know much about the 2800, but manual for the Grand L series says nothing about using the clutch to engage or disengage the PTO.

 

[k0ua]

My L3800 HST arrived yesterday. On the Kubota website it says that it has a live pto, but in the manual it says you must use the clutch when putting the pto in gear or takeing it out of gear.
To me a live pto does not need a clutch to be put into gear. What am I missing?

Ok I will tell you what I think it means, Yes you have a live PTO, but yes you will need to use the clutch to safely engage or disengage the pto, but you do not have to be moving the tractor. Now that said with a hydo you dont have to do anything with the clutch anyway to move the tractor, so it is kinda redundant. But if your tractor was a gear model, you still would not have to move the tractor, to engage the PTO, as the PTO would engage first as the clutch starts to engage ,then the tractor will start to move as you continue letting out the clutch. You do not have a hydraulic/electric actuated PTO, where you press a button and don't have to use the clutch at all. In the old days on some older tractors that did not have "live" power you had to move the tractor and the pto at the same time. in using a baler or something like that with live power you can get the baler up to speed first before you start shoving hay into it, by driving foward..
Anyway this is my understanding of the term. Perhaps other would care to comment.
James K0UA

 

[TripleR]

You are confusing "live" with "independent" PTO.

http://www.tractorbynet.com/forums/owning-operating/22763-power-take-off-types.html

 

[LD1]

You are confusing "live" with "independent" PTO.

http://www.tractorbynet.com/forums/owning-operating/22763-power-take-off-types.html

+1

You do indeed have a live PTO. Which DOES require the use of a clutch to engage. It uses a 2-stage clutch . You use the main pedal, but instead of pushing it half way to make gear changes, you have to push it all the way for PTO use.

Even an independent uses a clutch. But it is a seperate clutch all together. It can either be mechanical or hydraulic. Hydraulics are usually the push button types. That is where most get the impression that a clutch is not used. When in reality, a clutch IS being used, just not by your foot.

This TractorData.com - Power Take-Off Is the best and simplest explination I have came across to describe the different PTO's.

 

[TripleR]

+1

You do indeed have a live PTO. Which DOES require the use of a clutch to engage. It uses a 2-stage clutch . You use the main pedal, but instead of pushing it half way to make gear changes, you have to push it all the way for PTO use.

Even an independent uses a clutch. But it is a seperate clutch all together. It can either be mechanical or hydraulic. Hydraulics are usually the push button types. That is where most get the impression that a clutch is not used. When in reality, a clutch IS being used, just not by your foot.

This TractorData.com - Power Take-Off Is the best and simplest explination I have came across to describe the different PTO's.

The Tractor Data is a good one, but it could be a little confusing when dealing with HST and especially the L Series. It appears the Lxx00 Series requires use of the clutch to engage/disengage the PTO while the Grand L doesn't even though depressing the clutch disengages the power to the PTO.

We have had tractors with all types and it sure can be confusing for a new owner.

 

[k0ua]

Doesn't the Grand L have the Hydraulic clutch pack,? so that is why you dont need to use the main clutch? and the L series does not. Maybe someone could clarify here.
James K0UA

 

[RoyJackson]

My L3800 HST arrived yesterday. On the Kubota website it says that it has a live pto, but in the manual it says you must use the clutch when putting the pto in gear or takeing it out of gear.
To me a live pto does not need a clutch to be put into gear. What am I missing?

You probably have a 2-stage clutch. Depress it 1/2 way down and you can shift gears (and the PTO keeps turning). Push it all the way down to engage or disengage the PTO.
I think you're confusing "Live" with "Independent" PTO's.

 

[diesel466]

I do not think you have a 2-stage clutch as it is not needed with a hydro, Just a single plate clutch. As Roy said you have live pto not independent.

 

[RoyJackson]

As Roy said you have live pto not independent.

I think you got that backwards, Bro...

 

[diesel466]

I think you got that backwards, Bro...

What do I have backwards?

 

[David_Kb7uns]

Doesn't the Grand L have the Hydraulic clutch pack,? so that is why you dont need to use the main clutch? and the L series does not. Maybe someone could clarify here.
James K0UA

The Grand Ls are a more refined tractor with more features, such as heavier loader and front axle, hydraulic PTO clutch, external dual three point lift cylinders, isolated operators deck, hydrostatic intead of power assit steering, shuttle shift, Intellipanel, GST electro-hydraulic shifting transmission and other features.
The standard or sometimes refered to as the economy Ls are more like a new updated 8n or MF35 and do not have as many comforts and stick to the older proven tractor designs.

With the hydraulic clutch pack on the PTO there is no need for a dual main clutch as the hydraulic can be turned on and off at any time independent of the main. Also with the GST their is a seperate wet clutch that the ECU controls so there are times you never have to step on the clutch as ot is activated when the shuttle shifter is used or the gear selector is changed.

I think for the money the Grand Ls offer alot of features and are alot more robust and have more advanced engineering in them, you just cannot compare the HP and size but the extras in the design.

David Kb7uns

 

[RoyJackson]

What do I have backwards?

He, most likely, has an independent PTO rather then live.

My old 790 had "live" PTO and a 2 stage clutch (worked as described in an earlier post). My current Deere 4400 has an independent PTO drive (doesn't slow or stop when the clutch is depressed). The 4400 is a manual transmission (reverser, actually) so has to be clutched to shift gears.

 

[diesel466]

Ok I just do not see a need for a dual clutch on a hydo with independent pto.

 

[RoyJackson]

Ok I just do not see a need for a dual clutch on a hydo with independent pto.

Actually, I screwed up. I missed his tractor was HST.
I do see the need to clutch to engage and disengage the PTO (less shock load on the PTO). My 4400 doesn't use the clutch to engage/disengage but I wish it did.

 

[MikeInEburg]

I'm glad that my B7800 uses a clutch to engage the PTO. Not only can I engage gracefully, but it also gives me an "emergency brake" to quickly disengage if I hit something while mowing, digging, etc.
Mike

 

[diesel466]

Ok Roy , I believe his tractor has a live pto not independent pto, because they are telling him to use clutch. I had a b2620 and that was how it worked. Most independent ptos have a hydraulic clutch pack, so you do not need main clutch.