Help to ID pin clutch, Rhino HPHD

[Anonymous Poster]

I just bought a used Rhino HPHD, as-is. While testing it I got it stuck, and the driveline just started "clicking/vibrating" until engine stall. I thought the unit had shear pin driveline protection, but some research is leading me to think I may have a radial pin clutch system. Only other thing I can think of is stripped gears in the gear box.

Thought I'd try here before tearing into it to see what inside.

thanks,

 

[Hoeman00]

Does this unit use a chain between motor and drive?
A slipping chain will give that sound.
Most hydro drives will stall motor before breaking a shear pin.

 

[Anonymous Poster]

Hi Tim. No chain, just a PTO shaft from tractor to post hole digger. After un-stuck I continued to bore several more holes very smoothly, as if nothing was wrong.

 

[HayDR]

Rhino PHD Yes you have a radial pin clutch, it is an option for that digger. When the clutch slipps it sounds like a machine gun going off.

 

[Hoeman00]

I saw the HPHD (hydraulic post hole digger).
So u have a PHD, that makes a big difference.

 

[Anonymous Poster]

CCI- Thanks, your photo is exactly what I've got on mt PTO connection to tractor. My lucky day I guess, since I bet the pin clutch is an extra $$ option.

Tim - Sorry for the confusion. On second review I can see how HPHD would logically stand for hydraulic. I was just reading the letters Rhino put on the side of the unit. I think HPHD stands for heavy duty post hole digger.

Thanks again!!