Tiller How to adjest slip clutch on tiller

CFHartman · Mar 29, 2005

I bought a used Land Pride tiller with a slip clutch on it. It only had half the PTO with it. the local dealer wanted almost $300.00 for a new PTO shaft. said that was cheeper than buying half + both drive shaft's. I bought the hole thing at TSC for half. There was no paper say anything about adj. the clutch. In my owners manual it talks of slipping the clutch once a year. any suggestion's will help. /forums/images/graemlins/confused.gif /forums/images/graemlins/tongue.gif
Charlie

Egon · Mar 29, 2005

Do a search on slip clutch threads. There more than one.

Egon

beenthere · Mar 29, 2005

Some clutch's have springs and several bolts that tighten the compression springs. They are the adjusting bolts, and you loosen them equally, until the clutch slips, then tighten them equally, until the clutch holds, but slips under a shock load.

Or the way I re-adjust it, is to tighten just until the clutch doesn't slip when engaging the PTO, then one more turn on each bolt. It is a bit time consuming, but you don't want the faces rusted together, and the clutch not work at the critical time. Also, don't want it slipping when engaging the PTO or when just working under a heavy load. You will see smoke then.

Darren · Mar 29, 2005

Below is a link that will take you to an article on spaders. Within that article is the best infomation I've read on adjusting a slip clutch. Page down until you see the "This Is The Most Critical Issue" line.

Although the article deals with the slip clutch on spaders it applies to any similar equipment.

http://www.ferrari-tractors.com/spader.htm

Indydirtfarmer · Mar 29, 2005

( Some clutch's have springs and several bolts that tighten the compression springs. They are the adjusting bolts, and you loosen them equally, until the clutch slips, then tighten them equally, until the clutch holds, but slips under a shock load.

Or the way I re-adjust it, is to tighten just until the clutch doesn't slip when engaging the PTO, then one more turn on each bolt. It is a bit time consuming, but you don't want the faces rusted together, and the clutch not work at the critical time. Also, don't want it slipping when engaging the PTO or when just working under a heavy load. You will see smoke then. )

Most equipment with an O.E.M. slip clutch that I have ever owned will give (in the owners manual) a measurement of the compressed clutch springs (in inches?) That adaquately "pre-loads" the clutch to slip at it's designed point.

greg_g · Mar 29, 2005

Use the forum search engine to find last year's thread entitled SLIP CLUTCH ADJUSTMENT. You first have to know your tractor's PTO horsepower, and from there you adjust the length of the compression springs. There's no guesswork involved. Once you know the horsepower, there's a specific spring length that must be achieved.

//greg//

beenthere · Mar 29, 2005

Yes, I agree and have found that manual info to be a good guide especially when new.

However, I've found that over time, either the clutch can be worn in which case it needs to be a bit tighter, or rusted, which means it needs to be slipped first, or may have been too tight.

Good guide though.

Darren · Mar 29, 2005

Besides wear, over time springs can weaken. That's why the article in the link relies on temperature to determine if the slip clutch is operating and to the degree it's slipping (not at all or too much). Using a manual is great ... if you have one. The link provides a procedure to use when you don't have a manual. So even if you were using your tiller, you have a way of stopping periodically and easily checking the adjustment.

greg_g · Mar 29, 2005

( Using a manual is great ... if you have one. )

I have one - applicable to CFHartman's slip clutch. Whereas the article was entertaining, I prefer the method prescribed by the manufacturer.

Assuming it won't be the JD2210, I can provide a recommended spring tension setting - once I learn the PTO horsepower of the tractor to be used with the tiller.

//greg//

CFHartman · Mar 29, 2005

Hi Greg
I just started to write you. Then I went back to my post and seen that you wrote me.
I do have a JD2210 with 17 PTO hp and 23 engine hp. My tiller is a land Pride RTA10-50 it's suppose to be for a 17 to 25 PTO hp.
Charlie