2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 229Get this manual
CLUTCHING NOTE: Rubber side of the button is positioned toward the solid roller pinIt is recommended to switch all buttons to the rubber version during service (if needed)
Shift Weight Inspection WARNING
The clutch assembly is precisely balanced unitNever replace parts with used parts from another clutch assembly! 1If clutch is not disassembled, inspect as shown, using clutch holding tool to compress the moveable sheaveThe contact surface of the weight should be smooth and free of dents or gall marks
Button To Tower Clearance Inspection
1Inspect for any clearance between spider button to towerIf clearance exists, replace all buttons and inspect surface of towersSee "Spider Removal" procedure