In the attached assembly the part PW-34 Link Rod needs to be free to pivot around the part PW-36 Pivot Pin (as it will be connected to a gear with an offset threaded hole).  Which in turn moves the part PW-31 Pushrod back & forth.

I have gone through (2X) all the pertinent parts in the assembly and suppressed the mates for each, tried to get the part PW-31 Pushrod to move without any luck.

What am I missing?