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Hi Welcome back. Thank you for requesting me. The swing tolerances are non adjustable. However if you have excessive play in the swing gear you either have a worn gear, loose bolts, or a bad bearing in the torque hub. See section 3.2 of this manual for the check procedure and wear tolerances. copy and paste this link in your browser. https://csapps.jlg.com/OnlineManuals/Manuals/JLG/JLG%20Boom%20Lifts/100_110_120SX/Service_3121105_07-29-04_ANSI_English.pdf Reply back if you need further help with this.