Hi mowall, welcome to Outdoorking.
I'm not clear on which parts you are talking about here. Here is the illustrated parts list drawing of the relevant area:
Please give the Item number of the bolts you are referring to.
I have removed 57, 2, 3, and 5 from the top of the cutting deck spindle.
The ones I'm referring to are the 3 bolts and 1 large nut (45 and 57 at the very bottom of the drawing ) that hold the cutting plate to the bottom of the spindle. Are they left hand thread ?
Note : 57 has been used twice in the drawing.
Basically, I just want to know how to get the spindle apart so I can change the seized bearings.