JD2305 & PHD Questions

[cdhd2001]

I finally had time to hook up and use my new PHD on the JD2305 last weekend.

I dug two post holes about 2.5 ft deep.

I have some observations and questions.

The instructions state to align the auger 3 inches off plumb pointing away from the tractor when starting the hole. The intention is that the boom will arc out and straighten/ plumb the auger when dropping in the hole. However, I seem to have some slack in the 3ph linkage. I have the two "tensioners" on the draw bars tightened as far as possible, but I run out of threads before I am able to fully tighten up the linkage. Okay, this slack allows the boom/auger to create a "wump - wump" motion. The drive shaft is not in a bind and the unit spins freely when not attached to the PTO. This makes for a fun ride on the tractor, that my wife says is like sitting on a washing machine. So, this motion "scoots" the tractor forward producing a post holes that angle away from the tractor. Any suggestions?

Another observation. I started out with the tractor running just above idle in an attempt to use the PHD at a slower more controlled rpm. Worked great until I hit the moist clay. Auger screwed straight into the ground and killed the engine. Discovered that with this tractor I have to run about 2,200 rpm to be in the "sweet" spot.

Here is the pics!

 

[prosperity]

First thought that comes to my mind -

When the PHD is in the raised position, the drive shaft is at it's most extended position. As you lower the unit, the drive shaft needs to slide inward (getting shorter).

Without the PTO engaged, try this. Lower the auger so it is touching the ground, and leave your 3 point hitch control lever in the down position. Slowly move the tractor forward, allowing the frame of the PHD to lower - the auger will start to lay out horizontally behind the tractor as you move forward. As you do this, watch your drive shaft. As the frame of the PHD lowers, you will see the drive shaft slide inward and get shorter. My guess, is that you need to shorten the drive shaft. When you get about half way lowered, I think your drive shaft is bottoming out as it can't get any shorter - ie - drive shaft too long.

 

[cdhd2001]

First thought that comes to my mind -

When the PHD is in the raised position, the drive shaft is at it's most extended position. As you lower the unit, the drive shaft needs to slide inward (getting shorter).

Without the PTO engaged, try this. Lower the auger so it is touching the ground, and leave your 3 point hitch control lever in the down position. Slowly move the tractor forward, allowing the frame of the PHD to lower - the auger will start to lay out horizontally behind the tractor as you move forward. As you do this, watch your drive shaft. As the frame of the PHD lowers, you will see the drive shaft slide inward and get shorter. My guess, is that you need to shorten the drive shaft. When you get about half way lowered, I think your drive shaft is bottoming out as it can't get any shorter - ie - drive shaft too long.

Thanks for the advice!!!

I shortened the drive shaft by 8 inches and completely cured the problem. Woohoo!