Do I Need an Overrunning Clutch?

[ammodram]

Wondering if anyone can tell me if I need an overrunning clutch to safely operate a brush hog on a Kubota L245DT?

I'm not sure I understand how the PTO works on this model, and haven't had the one I bought delivered yet, so I can't mess around with it to find out.

I recall from when I drove it that it has a 3-speed PTO control lever, but when that lever was in gear, not sure what was happening to the PTO when I pushed the clutch, since I couldn't see over the back while test-driving it!

Tractor data.com lists the PTO as independent, but the tractor doesn't have any sort of separate PTO clutch anywhere to control it, so I wasn't so sure. Is the clutch on an independent PTO internal? Not sure I understand how this works. As far as I can tell, I probably need the overunning clutch on this model, but I'm unclear on this.

Can anybody shed light on the matter?

Thanks again!
Matt

 

[ammodram]

Never got a reply to this, but the answer is that the L245 DT has a built-in overunning clutch on the independent PTO.

I knew what a live PTO was (2-stage clutch pedal), but had gotten confused about how to tell if a "non-live" PTO (without the 2-stage clutch) was transmission-linked or independent. The multiple PTO speeds added to my confusion - what on earth did they incorporate that feature for? Seems like everything uses 540 rpm.

Anyway - for the record, according to the Kubota specs, the L245DT does have a PTO with overunning clutch. The PTO runs with the slowest speed setting hitting 540 rpm at engine speed of 2430 rpm.

Pardon the newbie ignorance.

-Matt

 

[canoetrpr]

ammodram any clue were the overruning clutch is built in - is it right in the PTO engagement CAMs? The L3400 has this design and I'm guessing that it has been used before.

 

[canoetrpr]

See this thread for what I am referring to.

 

[ammodram]

See this thread for what I am referring to.

This is all mostly over my head - I'm not a mechanic, nor do I have any real mechanical abilities or inclinations. Just learning as I go.

But here is the parts diagram for the PTO shaft on the L245DT. No.'s 30-37 are the clutch assy. Hope that answers your question.

Matt

 

[Eagleview]

If you have enough engine torque and your doing light mowing you can use the 1000rpm PTO to run a 540 implement at reduced engine revs as i do when contract slashing . In my case instead of running the engine at 2200rpm i select the 1000rpm position and bring the engine speed down to 1400rpm (peak torque) which gives me around 540 at the PTO . My 100hp New Holland has just done 28 hours of slashing on a tankfull of fuel , 135litres , thats 4.82 litres per hour out of a big tractor using this method . Can't help with the over running clutch tho .