newbie mid deck arm question

[Dsmith]

I just got a new BX25D with a mid deck mower. When I operate the three point hitch down, the mower deck arms come down as well. I thought there was some way to lock them in place while using the three point, but I'm not seeing a way to do that. Am I just overlooking something?

 

[TripleR]

Raise the MMM all the way up, turn height level indicator knob to TOP and you can use 3PH independently.

 

[Dsmith]

Sweet! I new I was doing something wrong.