2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 198Get this manual
CLUTCHING (PVT) 12Place the clutch into Clutch Compression Tool PN 8700220Using Compression Extensions PN PS-45909, press down on the top of the spider assembly, pushing the spider onto the shaft14Install the cam (helix) assembly over the shaftLine up the "X" on the cam, "X" on spider, and "X" on the stationary sheave or use the marks previously made before disassemblyNOTE: If the cam assembly (helix) is difficult to install, be sure the sheaves are alignedTo align the sheaves place the clutch assembly on flat surface with the cam assembly (helix) side downPress down on the moveable sheave belt face with both hands and the helix will releasePress Down to Loosen Helix