2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 236Get this manual
CLUTCHING 2Inspect the weight pivot bore and pivot bolts for wear or gallingIf weights or bolts are worn or broken, replace in sets of three with new boltsNOTE: damaged shift weight is usually caused by damaged or stuck roller in the spider assemblySee roller inspection, see "Roller, Pin, and Thrust Washer Inspection"2Lift one-way clutch (3) and thrustwasher (4) off shaftReplace as an assembly if worn, damaged, or if problems were noted
WARNING
The clutch assembly is precisely balanced unitNever replace parts with used parts from another clutch assembly! All PVT maintenance or repairs should be performed only by certified Polaris Master Service Dealer (MSD) technician who has received the proper training and understands the procedures outlined in this manualBecause of the critical nature and precision balance incorporated into the PVT system, it is absolutely essential that no attempt at disassembly or repair be made without factory authorized special tools and service procedures