changing knives on new holland 276 baler

I have a new holland 276  baler and it needs new knives,  I bought them and the one looks rather simple to get to,  but the other one on what I call the plunger looks interesting to change.  It almost looks like I need to take off the top piece above the chute that creates the tension on the bale with the two adjustable cranks and the little star wheel assembly that is behind the knotter.  If I remove these two things it would make it simpler to get to.  Any Ideas.

 

Thanks in advance for any assistance.

changing knives on new holland 276 baler