slack on SG2100

[GreatFTA]

Hi guys!
The other day I replaced my 1 meter Primestar dish with a 1.2 meter Primestar and I noticed there is some side to side slack on my Moteck SG2100 arm. Not much but when I go from one satellite to another I have to toggle my dish a little to get the satellite in.
Is there anyway to tighten down the arm so it wouldn't rock anymore?
Thanks

 

[gabshere]

mrftaman did you remove the shaft and see if its the shaft or the motor itself
if its the shaft you might can shim it , if its the motor then its probably the gears, don't know a fix for that. are you using the 42mm shaft or the 50 mm shaft
i did notice the 50 mm shaft compensated for a little bit of movement on mine.