Adding a Slip Clutch

MikePA · Aug 7, 2002

Is it possible or pratical to add a slip clutch to a post hole digger?

If it is, how do you set the clutch to slip at the right time?

dgood1 · Aug 7, 2002

Mike,

The clearance of the unit would be the only issue that I can think of that would give you a problem with installing a slip clutch.

The clutch has spring tension on the assembly that is controlled by how tight the springs are compressed by the adjusting nuts. There is one nut for each spring and there will be 4 or more of these assemblies around the edge of the unit.

Hope this helps,

Don

gbirky · Aug 8, 2002

Mike,
I was just in our local TSC yesterday and saw a pto slip clutch. It is designed to go right on the pto of the tractor, and then the pto shaft to the phd would go on it. As was posted by another, the torque at which the clutch slips is adjusted by tightening nuts that compress springs to engage the clutch. As I think about this, it sounds like a great solution - not too expensive, and will save you the time of changing those shear bolts.

It was kind of large in diameter, so you may have to remove any pto shield. Also, it does position the pto further back, and may require you to shorten the pto shaft on the phd.

Greg

SimS · Aug 8, 2002

Greg;

I was thinking about adding a slip clutch to my Bush Hog. What was TSC asking price for clutches?

Sim

JerryG · Aug 8, 2002

Slip clutches are designed to go between the pto shaft and the gear box of the implement not between the tractor and the pto shaft.

gbirky · Aug 8, 2002

SimS,
I really don't remember. All I know is that it didn't seem too expensive. I have their catalog, but they don't list it.

Greg

gbirky · Aug 8, 2002

JerryG,
I don't see that it makes much difference which end of the pto shaft the slip clutch goes. If you put it on the tractor's pto, then you can use it on multiple implements like phd, bh...that don't have one.

Greg

JerryG · Aug 8, 2002

Most tractors don't have enough room on the tractor end . Plus different implements require different settings on the clutch.

gerard · Aug 8, 2002

Was at the farm days Tues and looked at the slip clutches. $165 and they are supposed to go on the implement end of the pto shaft, not the tractor side (even though it looks like it would fit). Think the problem is you want the slippage as close as possible to the point at which the thing is "binding" up so you don't transmit all that torque down the shaft (which is what happens if there is no "slip" until the tractor side of the shaft.) I asked for the exact reason just mentioned. Seemed pretty cheap if you could just buy one and put it on tractor pto output shaft but no such luck........