2010 Polaris Sportsman 850 Service Manual, Page 190Get this manual
CLUTCHING (PVT) Belt Inspection
1Inspect belt for hour glassing (extreme circular wear in at least one spot and on both sides of the belt)Hour glassing occurs when the drive train does not move and the drive clutch engages the beltInspect belt for loose cords, missing cogs, cracks, abrasions, thin spots, or excessive wearCompare belt measurements with new drive beltReplace if necessaryBelts with thin spots, burn marks, etc should be replaced to eliminate noise, vibration, or erratic PVT operationSee the Troubleshooting Chart at the end of this chapter for possible causes7
Wheel Nuts: Steel: 45 ftlbs(61 Nm) Aluminum: 75 ftlbs(102 Nm) Install the seat, lower the ATV, start the engine and test the operation of the PVT system3
Belt Installation (TOURING Models)
1With the Belt Removal Tool installed, loop the belt over the drive clutch and over top of the driven sheaves
Belt Installation (XP Models)
1With the Belt Removal Tool installed, loop the belt over the drive clutch and over top of the driven sheaves
NOTE: Be sure to install the drive belt as shown, so the "Polaris" label can be read