</font><font color="blue" class="small">( Hi,
Anyone know if the B7800 has a built in PTO slip clutch?
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No
Most tillers that I have seen come with a slip clutch.
But at the very least you need to have a sheer pin.
If the tiller has no slip clutch I would be adding one if it were mine.
My opinion..
No.
My B2910 would stall when a large rock was hit, before I adjusted the slip clutch for my tractor horsepower.
Are you sure there is no shear bolt? It should be at the tiller end. My tiller PTO has 1 3/8 spline at both ends and requires it be used with a slip clutch.