Post hole digger motor

[lutt]

Good evening everyone. I am wanting to convert my 3 point post hole digger to use on my 420 loader on my 4200 deere. I was wandering what hydraulic motor I needed. I used the search, but didn't come up with much. I will be turning a 12 inch auger. I have a lot of holes to punch in a large upcoming fencing project in clay to clay gravel soil. So down pressure is going to be a God send. Pump flow is around 7 gallons a minute. Thanks guys! LUTT

 

[Fawken]

I hate to sound redundant, check the tech page at Surpluscenter.com. They list the required GPM for various motors and sell most all of them as well.

 

[lutt]

I have , there are a lot of folks on here that have put these together. That's why I am asking. I want to get it right the first time. Thanks LUTT

 

[MossRoad]

You'll need your tractor hydraulic's PSI and GPM and the RPM that you want the auger to turn at. Plug those numbers into the calculator at Surplus Center and it will tell you the Cubic Inch Displacement of the motor that you will need to achieve that.

 

[bigdeano]

Make sure the motor has enough torque to turn a 12" auger in your soil. That's the hard part to figure it seems to me. Sorry I can't help you.

 

[lutt]

Thanks, I am out on the lower Mississippi River at work, I'll have to research the rhino auger I have for the numbers. Motor mount and shaft size are something else I know I need to look into. THANKS LUTT

 

[Redneck in training]

It might be more cost effective to get down force kit for you three point PHD.
https://www.google.com/search?q=dow...ed=0CEEQyjc&ei=_EVcVZnFOMnZoASkoYGQBA#imgrc=_

 

[lutt]

That is something I should consider, didn't even cross my mind putting down pressure on it! THANKS! LUTT

 

[J_J]

Look through these PTO hyd motors and see if one will fit your tractor hyd.

Surplus Center

If you still need down force, there are kits for that..

6818-Danuser Down Force Kit For J20/80 Series 3 point PTO Auger

 

[lutt]

Look through these PTO hyd motors and see if one will fit your tractor hyd. Surplus Center If you still need down force, there are kits for that.. 6818-Danuser Down Force Kit For J20/80 Series 3 point PTO Auger

Thanks JJ I sure will!