Post hole digger spins but wont dig

[rcat8872]

Hey guys,
Got a B2620 with a bushhog post hole digger. Disconnected it last week so a friend could borrow the tractor and use a box blade. Reconnected the post hole digger today but now it will spin but only go about 3 inches deep into a hole My friend said he didnt make any adjustments that would matter so I figure I've got something hooked up wrong. Will try to post pics if I can What did I do wrong?

 

[damnnissans]

Is anything restricting the 3PH from moving downward past the point where it stops digging?

 

[rcat8872]

No obstructions in the ground...tried digging in a few different spots. Looked at the manual and adjusted the "locker" which was supposed to increase 3 point hitch lowering height but no difference. I don't see any other obstructions

 

[Lil Foot]

Is it a optical illusion, or is the "U" where the 3 point arms attach sitting on the ground? That would certainly limit depth.

 

[moderatmixed]

Take off the auger. Lower the boom as low as it will go. If it stops part way down, something hydraulically is restricting. Too, check the 3 pt speed adjustment, if your friend played with that at all your problem might be there. Once you do get it sorted out, DONT LOAN YOUR TRACTOR!!! Lol.

 

[rcat8872]

I feel stupid. Didn't even think to check the hydraulic fluid seeing as how the tractor has less than 60 hrs on it but I checked it and the dipstick was dry. Gonna top it off tomorrow...any recommendations on what type of fluid to put in?

 

[kubotasam]

Not saying that you don't need the fluid. However filling will not help you dig deeper. The hydraulics only lift the auger. It goes down by gravity.