Hello,
I recently bought a Stern Shaker for my Star Wars comic pro, and unfortunately it's too violent, rattling a lot... I was very disappointed to see that the Stern settings only allow to adjust the frequency of the shaker triggers... and read on the pinside forums that apparently I can't even add a pwm modulator because it would fry a node board ??!
Looking at the below thread (thanks Blackbeard and Thunderbird !) it seems I have no choice but to unscrew one weight and set it at 180 degrees vs the other.
https://pinside.com/pinball/forum/topic/how-to-adjust-a-shaker-motor-on-tftc-tutorial#post-1929811
The trouble is... the screw is too tight. I tried with a torque driver and with Allen keys, vise grip pliers... No luck so far. Would anyone have further advice to help me solve this ?
Thanks a lot !

Thanks Lermods , that was great advice !
Letting it soak with WD40 I finally managed to get it off afterwards, using a torx screwdriver. \o/
I'm a bit confused though regarding putting the weight at a 180° angle from the opposite weight : the screw is made to enter a tiny hole on the rotating axis, which is only on one side... So unless I'm mistaken, I will screw it back as best I can but it won't fit as snugly since it won't be entering any hole ?

IMG_5115 (resized).JPG

Aaand.... I eventually realized that I could turn each weight by 90 degrees and use the other hole in each weight. Problem solved