Clutch and PTO operation

[DViau]

I am using my new CK20-HST with a rear mower. My question is: is there a way to shift from Low to High without using the clutch because if I use it, the PTO Stop and so I have to reduce speed in a way to have the PTO running again (because I don't want it to have the PTO back at full speed).

Need your advice.

Thanks

Denis

 

[RoyJackson]

I am using my new CK20-HST with a rear mower. My question is: is there a way to shift from Low to High without using the clutch because if I use it, the PTO Stop and so I have to reduce speed in a way to have the PTO running again (because I don't want it to have the PTO back at full speed).

Need your advice.

Thanks

Denis

If you can, it'll be in your tractor's manual.
If I'm reading your post correctly, you want to shift into another speed range without reducing RPM. I'm not so sure that's a good idea...that could put a shock load on your PTO drive and the implement.

 

[DViau]

If you can, it'll be in your tractor's manual.
If I'm reading your post correctly, you want to shift into another speed range without reducing RPM. I'm not so sure that's a good idea...that could put a shock load on your PTO drive and the implement.

I mean when I have to climb a hill and I have to have my tractor on low gear, If I have to use the clutch that will stop the PTO and so I should reduce the RPM in a way to have the PTO back on and not have a shock on the PTO. I was just wondering if there is a more intelligent way to do it.

 

[john_bud]

Usually you need to stop to change ranges. Check the owners manual to be sure. If it says to stop and you don't, it could lead to damage.

jb

 

[DViau]

Usually you need to stop to change ranges. Check the owners manual to be sure. If it says to stop and you don't, it could lead to damage.

jb

Just to be sure that you understand me well (sorry, french is my usual langage), of course I will stop moving prior to change from High to Low. So once I'm stopped, Do I have to use the clutch to change from High to Low. If I do, that will stop PTO. Don,T hesitate to ask for mere clarification.

Thanks again eveyone

 

[Highbeam]

Just stop the machine clutch in, switch gears(ranges), then slowly let the clutch back out if the implement is still spinning and if the implement has slowed or stopped then idle the engine down before letting the clutch pedal back out.

Always stop to change ranges and always clutch to change ranges but you don't always need to be at idle to repower the PTO.

 

[PSDStu]

Like Highbeam said.... just stop.....depress your clutch, change gear range....and SLOWLY let off the clutch to engage the PTO again....

Good Luck!

 

[Dmace]

YOU DON'T USE THE CLUTCH TO STOP THE PTO!

Why doesn't this fact sink in? If the PTO is engaged and you push in the clutch, you will hear a horrible grinding noise. You only use the clutch to engage the PTO, to disengage it you just slide the lever back. As long as you are stopped and your foot is fully on the brake so the vehicle does not roll you can switch between gears without the clutch even when the PTO is spinning. The beauty of HST...

I am not sure if it is the same for a CK30 but we are talking about a CK20 which I have and that is the way it works.

 

[ccsial]

I am using my new CK20-HST with a rear mower. My question is: is there a way to shift from Low to High without using the clutch because if I use it, the PTO Stop and so I have to reduce speed in a way to have the PTO running again (because I don't want it to have the PTO back at full speed).

Need your advice.

Thanks

Denis

You state that you have an HST. If this is so then stopping by taking your foot off the HST pedal stops the gears. You can shift without a clutch then. I assume Kioti is similar to other makes. If you don't hear it grind your OK.

You may also want to post this question in the Kioti forum.

 

[DViau]

Thanks you all for the tip. Of course I will read cover to cover the manual but nothing worth the experience of all.

Denis

 

[john_bud]

I agree with the above posts. Especially ccsail's. The HST part of the tractor is separate from the range part. The range part is typically straight cut gears and not syncronized in any way. You may or may not need to use the clutch to change ranges, Kubota recommends that you do. But, often I don't and as long as the tractor is not moving, it works just fine. Sometimes the range gears will be "tooth to tooth" and not "tooth to valley" and it won't go into gear. Using the clutch and/or tapping the hst peddle allows the gears to move a bit and engage.

The "horrible grinding noise" Dmace mentioned is the internal overrunning clutch that is part of the PTO. No damage occurs from that noise, it just sounds bad. Old straight gear PTO tractors would spin the PTO from of a shaft in the transmission. Cheap, reliable and easy to do. BUT, it had a major drawback that sent many a tractor into ditches, trees and walls over the years. A heavy spinning attachment like a mower would keep the tractor moving even with the clutch in as the motive power was the spinning mass directly connected to the transmission by the PTO. Ford 8n and early 4 speed tractors were well known for this. You can still buy an adaptor that goes on the PTO shaft and has a 1 way ratchet that allows the attachment to spin, but not feed power back into the transmission. It too makes a clacking grinding noise when it is protecting you from forced forward motion.

Sorry to get long winded! Enjoy your tractor.

jb

 

[Dmace]

john_bud

Thanks for the explanation of the overunning clutch, that is some great info.

 

[Soundguy]

Not all 'gear' tractors behave this way. only the non live pto units. Those that had live pto.. for instance.. via a 2-stage clutch, like a ford 660 had did n't have this problem, as you could clutch the driveline seperate of the pto.. etc..

Soundguy

IOld straight gear PTO tractors would spin the PTO from of a shaft in the transmission. Cheap, reliable and easy to do. BUT, it had a major drawback that sent many a tractor into ditches, trees and walls over the years. A heavy spinning attachment like a mower would keep the tractor moving even with the clutch in as the motive power was the spinning mass directly connected to the transmission by the PTO. Ford 8n and early 4 speed tractors were well known for this. You can still buy an adaptor that goes on the PTO shaft and has a 1 way ratchet that allows the attachment to spin, but not feed power back into the transmission. It too makes a clacking grinding noise when it is protecting you from forced forward motion.

Sorry to get long winded! Enjoy your tractor.

jb