singer 111G156 needle bar rock frame play

[davemac2]

Greetings again folks.  Continuing to tune up my singer 111G156.  I have noticed a lot of play in the upper hinge joint at the top of the need bar rock frame (see pic, red arrow).  It came to my attention when trying to adjust the presser bar spacing adjustment of 19/64" at zero stitch length.  Is that something that can be reduced by making an adjustment to the hinge stud/set screw, or is it excessive wear in the needle bar rock frame itself?  The play looks like about 1mm side to side.

 

[Constabulary]

This angled piece probably needs adjustment (see red arrow in my picture). Just loosen the screw push the angled piece toward the rock frame and tighten the screw again. I would do the same with screw # 20347AL and the stud # 2484237.