Go BottomShear pin or slip clutch
 | johnfundy
Join Date: Jul 2003 Posts: 71 NE Ohio 
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2003-05-08 54497
Hello board,
I'm about to purchase a rear tiller for my B6200. I looked at all brands, but the HOward seems to be the best for the money. It has a mid range price with top line features. Should I consider a shear pin drive line or slip clutch? Hopefully someone can get back to me asap as the dealer only has one left and it's peak season.
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 | Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada 
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2003-05-08 54498
Shear pins can be a pain, literally, a slip-clutch only requires a momentary stop to reset. The slight cost will be offset in unbruised knuckles and lack of sweat in no time.
Best of luck. ....
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| Bernie Galgoci
Join Date: Posts: 1
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2003-05-08 54500
I'm with Murf. Shear pins always break when you're 1/2 mile from the workshop and you forgot to put a spare in the toolbox from the last time the shear pin gave way. Twenty minutes of maintenance at the start of the tilling season is all a slip clutch will need for many a year. Good of luck with whatever you decide. ....
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| Pacesetter
Join Date: Jul 2003 Posts: 178 Maine
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2003-05-08 54501
John, Slip clutch is the most convenient by far. Just be sure to maintain it or you could cause bigger problems with your tractor.
Pacesetter ....
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 | marklugo
Join Date: Jul 2003 Posts: 281 Tifton, GA
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2003-05-08 54543
Every time an obstacle is hit and the clutch slips, the books say that for it to continue to function properly, then you should readjust your clutch immediately by retorquing the pressure plate bolts. But what do books know? ....
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 | jeff r
Join Date: Jul 2003 Posts: 428 burton. michigan
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2003-05-08 54548
While we are talking about slip clutches, does anybody Know why King Cutter has a hollow PTO shaft on the male side? My neightbor has a 60 inch KK tiller and twisted that hollow male portion of the shaft in two pieces just like a piece of liquiece gumbo candy. Why doesn't the manufacture provide a SOLID squre male PTO shaft???? What a dumb move by the manufacturer to furnish a hollow male PTO shaft. ....
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| Pacesetter
Join Date: Jul 2003 Posts: 178 Maine
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2003-05-09 54552
I think you answered your own question when you said it was a King Kutter. They are made for a price. Some people love them and they stand up well in some circumstances. For the most part, you get what you pay for.
Pacesetter ....
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| Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada
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2003-05-09 54560
Jeff, there are relatively few pto drive shaft manufacturers these days, mostly because a lot of the little ones got litigated out of business. Most shafts are now made by a large Italian Ag company. All drive shafts are designed and built according to the horsepower they are intended to handle. If you put 50hp to the best 25hp drive shaft in the world without adequate protectoion it will be destroyed in no time. This applies to any product, if it's abused it will not last, period.
If your neighbour's shaft twisted up it was caused by only one thing, the safety device did NOT work as it was intended to, a slip clutch that is not maintained will very seldom work when needed, they usually seize tighter than a ducks backside. Likewise, I have seen many people either replace the Grade 2 bolt that acts as a shearpin or drill the hole out to accept a larger bolt. The reason I hear all the time is "I got tired of replacing it every two minutes." This merely transfers the load onto something else in the driveline, usually something FAR more expensive to fix.
Best of luck. ....
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| Bernie Galgoci
Join Date: Posts: 1
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2003-05-09 54566
Mark - I just consulted Bush Hog, Worksaver, and two Landpride manuals about slip clutch checks and adjustments. Bush Hog suggests you do an "operational check" (i.e. make sure the clutch isn't frozen) after 30 or more days of storage, Worksaver suggests a check just after winter storage, and Landpride suggests re-doing a clutch run-in after "long periods of inactivity." All manufacturers describe check and adjustment procedures; none mention readjusting after hitting an object. The Bush Hog manual states (and in bold type, no less), "occasional slippage is normal for drivetrain protection." If I had to readjust a slip clutch every time I hit an obstruction and the clutch "slipped," I'd be better off time-wise with a shear bolt set-up. I would quietly burn any manual I had that told me to readjust the slip clutch every time it slips. ....
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