How to properly adjust King Kutter II slip clutch

[seapea]

I have a Eurocardin. I dug up the chart from another thread:

http://www.tractorbynet.com/forums/attachments/attachments/71850d1173481038-slip-clutch-torque-slip-clutch-settings.jpg

I measured mine at about 1 1/8", which is 28.5mm, so it looks like I have it adjusted properly for my tractor.

Thanks,

Chris

 

[seapea]

Finally got the KK II out for another test ride. Things were fine for about the first 10 or 15 minutes. I then checked the slip clutch and it was still cool to the touch. About 15 minutes later I noticed a slight clutch smell. I turned around and saw that the tiller was not spinning, and it looked like I had gone about 12' with the tiller just taking big chunks off the top 1" of clay. No smoke or squealing from the slip clutch, but it was very hot. I'm not sure what caused it to suddenly give. There are no roots or big rocks. I've tighten it up about 1/8 turn. We'll see how it does next time out.

 

[orlo]

Comment and question:

Comment: Unless you have a cab, you'll usually be able to 'smell' if you've been slipping the clutch, that distinctive burnt brake/slightly electrical burn smell.

Question:
Does anyone sell an adapter for either a 1/2" drive, or maybe a 3/4" drive torque wrench to the drive shaft spine?

What I'd like to do is to hook up a torque wrench to the drive shaft, somehow prevent the implement from moving (generally easy) and finding out what torque the clutch slips at. If I know the HP, I can divide the HP by approximately .1028 (540/5252) (or multiply by about 9.7) and get the foot lbs of torque it should slip at. I have a 3/4" torque wrench good for 650 ft lbs. For each 10hp it is about 97ftlbs of torque so if I want it to slip at 20hp I could torque it and it should slip at 194 ft/lbs of torque. (These calculations assume 540RPM on the PTO).

Is this a nutty method or has anyone tried this?

One minor point also, the slip clutch slips on torque, not HP, so if you are running at less than 540, you'll get that much less HP unless you adjust for it. I.E. If I adjust the clutch to slip at 20hp at 540rpm, it will slip at 10hp if I was running half speed (If you half the speed you'd need to double the torque to maintain the hp).

 

[greenmule]

WOAH DUDE.

 

[tinman955]

So is that chart an accurate way to adjust the clutch? I do like the idea that if you measure the springs hopefully atleast youd have even spring tension on the clutch.

 

[Knight]

The clutch is only one of many things to check on the tiller.
Also check the tine bolts for tightness. If they get loose or were not tighten from the factory, then you run a better chance of breaking a tine or two.
Check all bolts on tiller including side gear box mounting bolts.
Tillers bang around a lot and need a good looking over before using.

 

[citygonecountry]

Wish I had all this info before . now because I did't I am paying for a new clutch to be put in my tractor. could not make heads or tails of the book that came with my KK tiller.Will be on the phone Monday to give KK a peice of my mind. thank you for the info you have put out.